Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ottawa to the United States from C$ 184

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to USA

Enter your travel dates to find the best prices.

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 14 August 2026.

Mon 31/82:10 p.m. -
Nonstop1h 35m
Tue 1/910:40 a.m. -
Nonstop1h 40m
Deal found 9/8C$ 318
Fri 4/97:00 a.m. -
Nonstop3h 19m
Fri 11/911:20 a.m. -
Nonstop3h 13m
Deal found 12/8C$ 323
Thu 27/89:05 a.m. -
Nonstop1h 35m
Mon 31/88:00 a.m. -
1 stop4h 54m
Deal found 10/8C$ 323
Mon 24/89:05 a.m. -
Nonstop1h 35m
Thu 27/810:40 a.m. -
Nonstop1h 45m
Deal found 10/8C$ 329
Fri 18/97:00 a.m. -
Nonstop3h 19m
Mon 21/98:35 p.m. -
Nonstop3h 13m
Deal found 13/8C$ 342
Wed 2/912:25 p.m. -
2 stops12h 15m
Thu 10/94:30 p.m. -
1 stop10h 05m
Deal found 9/8C$ 349
Mon 7/94:15 p.m. -
Nonstop3h 19m
Mon 14/98:35 p.m. -
Nonstop3h 13m
Deal found 10/8C$ 353
Thu 8/102:00 p.m. -
1 stop5h 31m
Sat 10/107:55 a.m. -
1 stop5h 22m
Deal found 9/8C$ 354
Fri 11/97:00 a.m. -
Nonstop3h 19m
Mon 14/98:35 p.m. -
Nonstop3h 13m
Deal found 10/8C$ 357
Fri 4/97:00 a.m. -
Nonstop3h 19m
Mon 14/98:35 p.m. -
Nonstop3h 13m
Deal found 9/8C$ 358
Fri 11/912:15 p.m. -
1 stop3h 32m
Sun 13/910:00 a.m. -
1 stop6h 32m
Deal found 11/8C$ 358
Mon 5/104:15 p.m. -
Nonstop3h 19m
Fri 9/101:45 p.m. -
1 stop8h 05m
Deal found 9/8C$ 360

Find flight deals from Ottawa to USA

Keep the following information in mind while searching for Ottawa to USA flight deals. Data was last updated 14 August 2026.

Round-trip from

C$ 318

One-way from

C$ 184

Popular in

August

Cheapest in

November

Average price

C$ 537

Good round-trip deal

C$ 343 or less

Good one-way deal

C$ 202 or less
Porter Airlines
  • Porter Airlines
  • 31/8-1/9
  • Nonstop
  • 3h 15m total
  • Ottawa to USA
Search Deals
Porter Airlines
  • Porter Airlines
  • 25/8
  • Nonstop
  • 1h 35m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to USA that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Ottawa to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaNew York

YOW Ottawa - LGA New York LaGuardia

YOWLGA

Ottawa

Sun 11/10

2:00 p.m.-7:31 p.m.

1 stop5h 31m

New York LaGuardia

Mon 19/10

12:55 p.m.-4:32 p.m.

1 stop3h 37m

C$ 358

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Fri 25/9

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

Nonstop1h 35m

Newark

Sun 27/9

2:35 p.m.-4:15 p.m.

Nonstop1h 40m

C$ 379

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Thu 27/8

9:05 a.m.-10:40 a.m.

Nonstop1h 35m

Newark

Mon 31/8

11:20 a.m.-5:54 p.m.

1 stop6h 34m

C$ 386

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Fri 18/9

5:57 p.m.-7:36 p.m.

Nonstop1h 39m

Newark

Sat 19/9

8:47 p.m.-10:35 p.m.

Nonstop1h 48m

C$ 397

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sat 19/9

6:05 a.m.-7:37 a.m.

Nonstop1h 32m

Newark

Sun 20/9

7:30 a.m.-9:11 a.m.

Nonstop1h 41m

C$ 397

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Wed 26/8

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

1 stop3h 45m

Newark

Wed 26/8

2:35 p.m.-4:20 p.m.

Nonstop1h 45m

C$ 413

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sun 27/9

6:05 a.m.-7:37 a.m.

Nonstop1h 32m

Newark

Thu 1/10

6:00 a.m.-9:56 a.m.

1 stop3h 56m

C$ 429

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Mon 28/9

8:30 a.m.-6:45 p.m.

2 stops10h 15m

Newark

Mon 5/10

6:25 a.m.-1:20 p.m.

2 stops6h 55m

C$ 429

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sun 6/9

5:57 p.m.-7:36 p.m.

Nonstop1h 39m

Newark

Sun 13/9

7:30 a.m.-9:11 a.m.

Nonstop1h 41m

C$ 431

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Thu 8/10

6:05 a.m.-7:37 a.m.

Nonstop1h 32m

Newark

Mon 12/10

7:30 a.m.-9:11 a.m.

Nonstop1h 41m

C$ 431

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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.
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

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$ 447). Flying from Ottawa to USA in June is currently the most expensive (average of C$ 595). 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?

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 14 August 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 14 August 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.
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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
456 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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
572 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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
10,108 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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
3,432 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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
11,471 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

6.9

Crew

8.6

Food

7.5

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

Find useful and relevant information for your journey from Ottawa to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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$ 122), and Porter Airlines (C$ 145).

  • What are the most popular routes from Ottawa to USA?

    The most popular flight routes from Ottawa to USA are Ottawa - Newark, Ottawa - Fort Lauderdale 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$ 447). Flying from Ottawa to USA in June is currently the most expensive (average of C$ 595). 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

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.
Pearson Intl to Cancún flights
Toronto Island to Cancún flights
Pearson Intl to Vancouver Intl flights
Hamilton to Cancún flights
Pearson Intl to Cozumel flights
Hamilton to Vancouver Intl flights
Region of Waterloo Intl to Cancún flights
Pearson Intl to Calgary flights
Toronto Island to Vancouver Intl flights
Pearson Intl to Abbotsford flights
Pearson Intl to Newark flights
Toronto Island to Newark flights
Hamilton to Calgary flights
Pierre Elliott Trudeau Intl to Cancún flights
Pearson Intl to John F Kennedy Intl flights
Hamilton to Halifax flights
Pearson Intl to LaGuardia flights
Pearson Intl to Edmonton flights
Pearson Intl to Mexico City flights
Toronto Island to Calgary flights
Pearson Intl to Fort Lauderdale flights
Toronto Island to LaGuardia flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Toronto Island to Halifax flights
Ottawa to Vancouver Intl flights
Pearson Intl to Halifax flights
Pierre Elliott Trudeau Intl to Vancouver Intl flights
Hamilton to Edmonton flights
Region of Waterloo Intl to Calgary flights
Pierre Elliott Trudeau Intl to Newark flights
Toronto Island to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to Mexico City flights
Region of Waterloo Intl to Vancouver Intl flights
Pearson Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Miami flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Pearson Intl to Miami flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Pearson Intl to Los Angeles flights
Region of Waterloo Intl to Halifax flights
Hamilton to Newark flights
Pierre Elliott Trudeau Intl to Calgary flights
Pearson Intl to Orlando flights
Pearson Intl to Dallas/Fort Worth flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to Seattle flights
Pearson Intl to Victoria flights

Top 7 airlines flying from Ottawa to USA

Discover the top 7 airlines that operate flights from Ottawa to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 14 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 160AverageC$ 609FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 232AverageC$ 514FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 274AverageC$ 593FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 292AverageC$ 495FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 345AverageC$ 519FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 558AverageC$ 758FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights
American AirlinesCheapestC$ 599AverageC$ 819FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.