How long is the flight from Ottawa to USA?

Departing from Ottawa to USA will take you 1h 35m. There are 528 km between Ottawa and USA. This flight may include one or multiple stops.

What are the cheapest airlines to fly from Ottawa to USA one-way?

The cheapest airlines for a one-way flight from Ottawa to USA are Air Transat (C$ 43), WestJet (C$ 121), and Porter Airlines (C$ 143).

In terms of precipitation, rainfall in USA ranges from 61.0 - 221.0 mm per month. June is typically the wettest month, when rainfall can reach 221.0 mm. November is typically the driest time to visit USA when rainfall is around 61.0 mm.

If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

What are the most popular routes from Ottawa to USA?

The most popular flight routes from Ottawa to USA are Ottawa - Fort Lauderdale, Ottawa - Newark and Ottawa - Orlando.

What are the most popular airlines that fly from Ottawa to USA?

The most popular airlines flying from Ottawa to USA are Porter Airlines, Air Canada and United Airlines. Something to consider prior to booking your flight.

What airport do you fly from for flights from Ottawa to United States?

Most people fly from Ottawa (YOW) if they book a flight from Ottawa to United States. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

Can I find deals for flights from Ottawa to USA that include hotel bookings?

Yes. In addition to deals on Ottawa to USA flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ottawa to USA?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to USA.

Can I find deals for business class flights from Ottawa to USA?

Yes. Cheapflights offers flight deals from Ottawa to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 166+ Cheap Flights from Ottawa to the United States

Cheap flight deals from Ottawa to USA

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Ottawa to USA
Explore the most affordable flight options available from Ottawa to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Thu 29/1010:35 a.m. -

Nonstop1h 35m

Mon 2/1112:50 p.m. -

Nonstop1h 40m

Deal found 4/9C$ 315

Thu 1/102:10 p.m. -

Nonstop1h 35m

Thu 8/102:35 p.m. -

Nonstop1h 45m

Deal found 3/9C$ 316

Sat 26/92:10 p.m. -

Nonstop1h 35m

Tue 29/92:35 p.m. -

Nonstop1h 40m

Deal found 4/9C$ 319

Mon 26/1010:35 a.m. -

Nonstop1h 35m

Thu 29/105:25 p.m. -

Nonstop1h 40m

Deal found 1/9C$ 321

Sat 17/102:10 p.m. -

Nonstop1h 35m

Sat 24/101:30 p.m. -

1 stop5h 37m

Deal found 2/9C$ 322

Tue 29/92:10 p.m. -

Nonstop1h 35m

Tue 6/102:35 p.m. -

Nonstop1h 45m

Deal found 1/9C$ 323

Thu 1/102:10 p.m. -

Nonstop1h 35m

Wed 14/102:35 p.m. -

Nonstop1h 45m

Deal found 3/9C$ 325

Sat 10/102:10 p.m. -

Nonstop1h 35m

Tue 13/102:35 p.m. -

Nonstop1h 45m

Deal found 5/9C$ 326

Mon 28/92:10 p.m. -

Nonstop1h 35m

Wed 30/92:35 p.m. -

Nonstop1h 40m

Deal found 1/9C$ 327

Tue 6/102:10 p.m. -

Nonstop1h 35m

Wed 14/102:35 p.m. -

Nonstop1h 45m

Deal found 4/9C$ 332

Fri 25/97:00 a.m. -

Nonstop3h 19m

Fri 2/1011:20 a.m. -

Nonstop3h 10m

Deal found 1/9C$ 340

Thu 10/124:35 p.m. -

Nonstop3h 21m

Thu 17/128:55 p.m. -

Nonstop3h 12m

Deal found 5/9C$ 341

Best flights from Ottawa to USA
Discover carefully curated flight deals from Ottawa to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Wed 30/910:00 a.m. -

1 stop5h 16m

Wed 7/106:47 p.m. -

1 stop5h 07m

Deal found 2/9C$ 373

Fri 9/103:10 p.m. -

Nonstop1h 39m

Mon 12/106:00 a.m. -

1 stop3h 19m

Deal found 2/9C$ 388

Sat 17/102:10 p.m. -

Nonstop1h 35m

Tue 20/102:35 p.m. -

Nonstop1h 45m

Deal found 4/9C$ 392

Sun 18/106:00 p.m. -

1 stop4h 36m

Thu 22/107:55 a.m. -

1 stop5h 22m

Deal found 4/9C$ 403

Wed 14/106:55 a.m. -

2 stops10h 16m

Sat 24/106:35 a.m. -

2 stops11h 00m

Deal found 1/9C$ 503

Wed 23/97:00 a.m. -

1 stop6h 45m

Tue 29/98:03 a.m. -

1 stop5h 52m

Deal found 31/8C$ 738

Sat 24/106:05 a.m. -

1 stop9h 12m

Sat 31/109:15 a.m. -

1 stop5h 52m

Deal found 4/9C$ 373

Sat 31/103:10 p.m. -

Nonstop1h 49m

Tue 17/1110:20 a.m. -

1 stop5h 37m

Deal found 1/9C$ 388

Fri 2/102:10 p.m. -

Nonstop1h 35m

Fri 9/106:25 a.m. -

2 stops6h 55m

Deal found 3/9C$ 398

Thu 24/96:01 p.m. -

1 stop16h 11m

Sun 27/97:26 a.m. -

1 stop14h 09m

Deal found 3/9C$ 381

Thu 1/106:05 a.m. -

Nonstop1h 32m

Sun 4/1010:25 a.m. -

1 stop3h 33m

Deal found 2/9C$ 413

Thu 22/108:00 a.m. -

2 stops8h 55m

Mon 26/1011:55 a.m. -

1 stop4h 14m

Deal found 4/9C$ 416

Mon 28/96:01 p.m. -

1 stop5h 31m

Sun 4/107:26 a.m. -

1 stop14h 09m

Deal found 3/9C$ 381

Thu 8/106:01 p.m. -

Nonstop1h 39m

Tue 13/106:45 p.m. -

1 stop3h 25m

Deal found 1/9C$ 413

Tue 20/106:50 a.m. -

2 stops12h 49m

Sat 24/105:30 a.m. -

2 stops12h 05m

Deal found 4/9C$ 507

Sat 9/16:15 a.m. -

1 stop8h 41m

Sat 16/17:11 a.m. -

1 stop6h 58m

Deal found 1/9C$ 381

Mon 26/107:05 a.m. -

Nonstop3h 40m

Tue 3/111:55 p.m. -

Nonstop3h 25m

Deal found 4/9C$ 435

Wed 30/96:00 a.m. -

3 stops11h 43m

Sat 10/109:00 a.m. -

1 stop9h 55m

Deal found 4/9C$ 383

Fri 18/126:00 a.m. -

Nonstop1h 59m

Mon 21/126:55 a.m. -

1 stop4h 42m

Deal found 1/9C$ 432

Thu 1/106:05 a.m. -

1 stop9h 14m

Tue 6/109:00 a.m. -

2 stops12h 35m

Deal found 3/9C$ 383

Sun 18/108:00 a.m. -

2 stops11h 25m

Thu 22/109:55 a.m. -

1 stop5h 00m

Deal found 2/9C$ 479

Fri 2/106:05 a.m. -

1 stop16h 00m

Sun 4/107:26 a.m. -

1 stop9h 50m

Deal found 3/9C$ 383

Fri 2/107:30 p.m. -

Nonstop1h 44m

Sun 4/105:20 p.m. -

1 stop4h 32m

Deal found 2/9C$ 467

Tue 20/106:50 a.m. -

2 stops14h 11m

Tue 27/104:40 p.m. -

2 stops8h 04m

Deal found 4/9C$ 637

Sat 17/1010:00 a.m. -

1 stop6h 55m

Sat 24/109:55 a.m. -

2 stops9h 52m

Deal found 2/9C$ 531

Fri 9/106:00 a.m. -

Nonstop1h 43m

Sun 18/105:20 p.m. -

1 stop4h 32m

Deal found 4/9C$ 506

Wed 18/113:10 p.m. -

Nonstop1h 50m

Thu 26/1111:36 a.m. -

Nonstop1h 35m

Deal found 31/8C$ 427

Mon 19/102:00 p.m. -

2 stops7h 12m

Wed 21/107:11 a.m. -

2 stops8h 59m

Deal found 3/9C$ 879

Fri 9/106:00 a.m. -

Nonstop1h 43m

Mon 12/105:20 p.m. -

1 stop4h 32m

Deal found 4/9C$ 506

Sat 17/106:55 a.m. -

2 stops14h 26m

Wed 28/102:15 p.m. -

2 stops10h 29m

Deal found 1/9C$ 753

Find flight deals from Ottawa to USA

Round-trip from	C$ 315
One-way from	C$ 166
Popular in	August
Cheapest in	January
Average price	C$ 446
Good round-trip deal	C$ 358 or less
Good one-way deal	C$ 223 or less

Porter Airlines
29/10-2/11
Nonstop
3h 15m total
Ottawa to USA

Search Deals

Porter Airlines
12/10-31/12
Nonstop
3h 30m total
Ottawa to USA

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Ottawa to USA.

Search Deals

Price to beat on a one-way flight from Ottawa to USA.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Tue 27/10

5:45 a.m.-2:21 p.m.

1 stop8h 36m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 199

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sat 10/10

6:25 a.m.-3:15 p.m.

1 stop8h 50m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 202

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sun 11/10

6:05 a.m.-1:25 p.m.

1 stop7h 20m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 202

OttawaTampa

YOW Ottawa - TPA Tampa

YOWTPA

Ottawa

Tue 1/12

4:35 p.m.-7:56 p.m.

Nonstop3h 21m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 206

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Tue 27/10

4:46 p.m.-3:46 p.m.

2 stops23h 00m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 207

Quickest round-trip

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Tue 29/9

2:10 p.m.-3:45 p.m.

Nonstop1h 35m

Newark

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 214

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sun 11/10

6:25 p.m.-4:45 p.m.

1 stop22h 20m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 225

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Mon 19/10

7:20 a.m.-3:30 p.m.

1 stop11h 10m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 227

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Thu 1/10

8:00 a.m.-11:45 a.m.

1 stop3h 45m

Newark

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 227

OttawaNew York

YOW Ottawa - LGA New York LaGuardia

YOWLGA

Ottawa

Tue 29/9

11:10 a.m.-2:36 p.m.

1 stop3h 26m

New York LaGuardia

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 227

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Ottawa to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Ottawa with our price prediction graph.

YOW-FLL

YOW-TPA

YOW-EWR

YOW-MCO

YOW-LAS

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to the United States

YOW-US0

YOW-FLL

YOW-TPA

YOW-EWR

YOW-MCO

What is the cheapest month to book a flight from Ottawa to USA?

Currently, January is the cheapest month in which you can book a flight from Ottawa to USA (average of C$ 449). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to US?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to USA as you normally would.

How often are flights from Ottawa to the United States delayed?

About 22% of weekly flights between Ottawa and United States have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Ottawa to the United States flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ottawa to the United States flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 16% of flights being delayed.

How far ahead should I book a flight from Ottawa to USA?

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to USA. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing USA

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Ottawa to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Porter Airlines

8.0

Very good

458 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Transat

7.8

Good

575 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

United Airlines

7.4

Good

10,172 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

WestJet

7.2

Good

3,444 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Canada

7.1

Good

11,582 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

What airport do you fly from for flights from Ottawa to United States?
Most people fly from Ottawa (YOW) if they book a flight from Ottawa to United States. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.
How long is the flight from Ottawa to USA?
Departing from Ottawa to USA will take you 1h 35m. There are 528 km between Ottawa and USA. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Ottawa to USA one-way?
The cheapest airlines for a one-way flight from Ottawa to USA are Air Transat (C$ 43), WestJet (C$ 121), and Porter Airlines (C$ 143).
What are the most popular routes from Ottawa to USA?
The most popular flight routes from Ottawa to USA are Ottawa - Fort Lauderdale, Ottawa - Newark and Ottawa - Orlando.
Can I find deals for flights from Ottawa to USA that include hotel bookings?
Yes. In addition to deals on Ottawa to USA flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to USA?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to USA.
Can I find deals for business class flights from Ottawa to USA?
Yes. Cheapflights offers flight deals from Ottawa to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ottawa to USA?
Currently, January is the cheapest month in which you can book a flight from Ottawa to USA (average of C$ 449). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Top destinations

Top regions

Alternative routes for Ottawa to USA

Pearson Intl to Cancún flights

Toronto Island to Cancún flights

Pearson Intl to Vancouver Intl flights

Pearson Intl to Cozumel flights

Hamilton to Cancún flights

Hamilton to Vancouver Intl flights

Pearson Intl to Calgary flights

Pierre Elliott Trudeau Intl to Cancún flights

Toronto Island to Newark flights

Pearson Intl to Abbotsford flights

Region of Waterloo Intl to Cancún flights

Toronto Island to Vancouver Intl flights

Hamilton to Calgary flights

Pearson Intl to Newark flights

Pearson Intl to John F Kennedy Intl flights

Toronto Island to LaGuardia flights

Pearson Intl to LaGuardia flights

Pearson Intl to Mexico City flights

Pierre Elliott Trudeau Intl to Vancouver Intl flights

Pierre Elliott Trudeau Intl to Toronto Island flights

Pearson Intl to Halifax flights

Pierre Elliott Trudeau Intl to Fort Lauderdale flights

Pearson Intl to Edmonton flights

Pearson Intl to Fort Lauderdale flights

Toronto Island to Calgary flights

Pierre Elliott Trudeau Intl to Mexico City flights

Hamilton to Halifax flights

Toronto Island to Pierre Elliott Trudeau Intl flights

Pearson Intl to Las Vegas flights

Ottawa to Vancouver Intl flights

Pierre Elliott Trudeau Intl to Newark flights

Pierre Elliott Trudeau Intl to Calgary flights

Toronto Island to John F Kennedy Intl flights

Pierre Elliott Trudeau Intl to Miami flights

Pierre Elliott Trudeau Intl to John F Kennedy Intl flights

Pearson Intl to Orlando flights

Pierre Elliott Trudeau Intl to LaGuardia flights

Pearson Intl to Dallas/Fort Worth flights

Pearson Intl to Miami flights

Pearson Intl to Pierre Elliott Trudeau Intl flights

Hamilton to Edmonton flights

Pearson Intl to Winnipeg flights

Region of Waterloo Intl to Calgary flights

Pierre Elliott Trudeau Intl to Pearson Intl flights

Pearson Intl to Los Angeles flights

Region of Waterloo Intl to Vancouver Intl flights

Pearson Intl to Québec City flights

Pearson Intl to Seattle flights

Hamilton to Winnipeg flights

Pierre Elliott Trudeau Intl to Halifax flights

Top 6 airlines flying from Ottawa to USA

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 159	AverageC$ 639	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 272	AverageC$ 629	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Porter Airlines	CheapestC$ 273	AverageC$ 536	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
WestJet	CheapestC$ 290	AverageC$ 505	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Transat	CheapestC$ 342	AverageC$ 532	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
American Airlines	CheapestC$ 594	AverageC$ 812	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ottawa to USA?

Cheapflights helps you search for flights from Ottawa to USA via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to USA?

Cheapflights simply makes it quick and affordable to book flights from Ottawa to USA by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ottawa to USA with no change fees?

Certainly. Search results for flights to USA from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ottawa to USA become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to USA from Ottawa today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ottawa to the United States from C$ 166

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to USA

Cheapest flights from Ottawa to USAExplore the most affordable flight options available from Ottawa to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Explore the most affordable flight options available from Ottawa to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Ottawa to USADiscover carefully curated flight deals from Ottawa to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals from Ottawa to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Direct flights from Ottawa to USAExplore direct flight options from Ottawa to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 September 2026.

Explore direct flight options from Ottawa to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 September 2026.

Last-minute flights from Ottawa to USADiscover last-minute flight deals from Ottawa to USA. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to USA. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Ottawa to USASearch for one-way flight options from Ottawa to USA. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options from Ottawa to USA. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Find flight deals from Ottawa to USA

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to the United States that are best for you.

Best time to book a flight from Ottawa to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Ottawa with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Ottawa to USA?

What is the cheapest time of day to fly from YOW to US?

Find hourly flight availability from Ottawa to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to USA as you normally would.

How often are flights from Ottawa to the United States delayed?

About 22% of weekly flights between Ottawa and United States have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Ottawa to the United States flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ottawa to the United States flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 16% of flights being delayed.

How far ahead should I book a flight from Ottawa to USA?

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to USA. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 5 September 2026.

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Ottawa to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ottawa to United States?

How long is the flight from Ottawa to USA?

What are the cheapest airlines to fly from Ottawa to USA one-way?

What are the most popular routes from Ottawa to USA?

Can I find deals for flights from Ottawa to USA that include hotel bookings?

How can I find direct flights from Ottawa to USA?

Can I find deals for business class flights from Ottawa to USA?

What is the cheapest month to book a flight from Ottawa to USA?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to USA

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to USA by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Ottawa to USA by cabin class

Find flights from Ottawa to USA, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ottawa and USA flights

Browse other Ottawa and USA flight options. Last updated on 5 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Ottawa to USA flights

Consider these flights travelling from Ottawa to USA.

Fly to USA regions

Consider these flights travelling to USA regions.

Top 6 airlines flying from Ottawa to USA

Fly with Cheapflights

How does Cheapflights help users find flights from Ottawa to USA?

Why should you use Cheapflights to find cheap flight tickets from Ottawa to USA?

Can Cheapflights find flights from Ottawa to USA with no change fees?

Can Cheapflights notify me if prices for flights from Ottawa to USA become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ottawa to USA
Explore the most affordable flight options available from Ottawa to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Ottawa to USA
Discover carefully curated flight deals from Ottawa to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Direct flights from Ottawa to USA
Explore direct flight options from Ottawa to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 September 2026.

Last-minute flights from Ottawa to USA
Discover last-minute flight deals from Ottawa to USA. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Ottawa to USA
Search for one-way flight options from Ottawa to USA. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.