Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ottawa to the United States from C$ 165

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
19 Aug — 26 Aug1
1 adult

Cheap 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 2025.

Round-trip from

C$ 309

One-way from

C$ 165

Popular in

December

Cheapest in

September

Average price

C$ 423

Good round-trip deal

C$ 311 or less

Good one-way deal

C$ 194 or less
Porter Airlines
  • Porter Airlines
  • 5/9-14/9
  • Nonstop
  • 6h 28m total
  • Ottawa to USA
Search Deals
Air Transat
  • Air Transat
  • 24/1
  • 2 total stops
  • 18h 15m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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

Find flight deals from Ottawa to USA

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 2025.

Mon 1/126:45 a.m.YOW - MCO
1 stop7h 15mPorter Airlines
Mon 8/121:00 p.m.MCO - YOW
2 stops9h 29mPorter Airlines
Deal found 13/8C$ 306
Thu 20/116:45 a.m.YOW - MCO
1 stop7h 15mPorter Airlines
Mon 24/111:00 p.m.MCO - YOW
2 stops9h 29mPorter Airlines
Deal found 12/8C$ 307
Fri 5/94:25 p.m.YOW - MCO
Nonstop3h 16mPorter Airlines
Sun 14/91:45 p.m.MCO - YOW
Nonstop3h 12mPorter Airlines
Deal found 12/8C$ 309
Fri 26/99:05 a.m.YOW - MCO
1 stop7h 25mMultiple Airlines
Fri 3/101:45 p.m.MCO - YOW
Nonstop3h 12mMultiple Airlines
Deal found 12/8C$ 310
Wed 24/99:05 a.m.YOW - MCO
1 stop7h 25mAir Canada
Sat 27/98:05 p.m.MCO - YOW
1 stop5h 29mAir Canada
Deal found 12/8C$ 313
Tue 2/126:45 a.m.YOW - MCO
1 stop7h 15mPorter Airlines
Wed 10/1211:20 a.m.MCO - YOW
1 stop5h 31mPorter Airlines
Deal found 14/8C$ 314
Thu 4/97:00 a.m.YOW - MCO
1 stop5h 42mPorter Airlines
Sun 14/91:45 p.m.MCO - YOW
Nonstop3h 12mPorter Airlines
Deal found 12/8C$ 316
Thu 4/94:05 p.m.YOW - EWR
Nonstop1h 35mPorter Airlines
Sun 7/92:15 p.m.EWR - YOW
Nonstop1h 41mPorter Airlines
Deal found 14/8C$ 316
Fri 5/97:00 a.m.YOW - MCO
1 stop5h 42mPorter Airlines
Fri 12/91:45 p.m.MCO - YOW
Nonstop3h 12mPorter Airlines
Deal found 12/8C$ 317
Thu 4/123:05 p.m.YOW - MCO
1 stop8h 15mPorter Airlines
Tue 9/1211:20 a.m.MCO - YOW
1 stop7h 06mPorter Airlines
Deal found 14/8C$ 318
Sun 21/96:30 p.m.YOW - FLL
2 stops18h 18mPorter Airlines
Thu 2/101:50 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Deal found 13/8C$ 318
Tue 11/119:20 a.m.YOW - MCO
Nonstop3h 28mPorter Airlines
Sat 27/128:45 p.m.MCO - YOW
Nonstop3h 13mPorter Airlines
Deal found 13/8C$ 320

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 2025.
Use the filters below to find and compare flights from Ottawa to the United States that are best for you.

Fly from

Ottawa

Fly to

USA

Route

Depart

Return

Price

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sun 7/9

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Sun 14/9

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 309

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 5/9

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Sun 14/9

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 309

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 26/9

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Mon 29/9

1:40 p.m.-8:35 p.m.

1 stop6h 55m

C$ 309

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 6/9

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Sun 14/9

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 309

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Wed 15/10

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Fri 24/10

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 309

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 26/9

9:05 a.m.-4:30 p.m.

1 stop7h 25m

Orlando

Fri 3/10

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 310

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 4/9

4:05 p.m.-5:40 p.m.

Nonstop1h 35m

Newark

Sun 7/9

2:15 p.m.-3:56 p.m.

Nonstop1h 41m

C$ 316

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 26/9

11:00 a.m.-4:30 p.m.

1 stop5h 30m

Newark

Sun 28/9

3:05 p.m.-7:59 p.m.

1 stop4h 54m

C$ 317

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Sun 28/9

11:50 a.m.-1:30 p.m.

Nonstop1h 40m

Newark

Sun 5/10

9:00 p.m.-10:40 p.m.

Nonstop1h 40m

C$ 318

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Sat 27/9

11:50 a.m.-1:30 p.m.

Nonstop1h 40m

Newark

Sat 4/10

7:50 a.m.-9:31 a.m.

Nonstop1h 41m

C$ 318

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 60 results
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, May is the cheapest month in which you can book a flight from Ottawa to USA (average of C$ 232). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 298). 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 2025.

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.

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 2025.
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
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
427 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,916 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
3,015 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,949 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Crew

8.7

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • 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$ 165), Porter Airlines (C$ 167), and WestJet (C$ 190).

  • 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 - New York John F Kennedy Intl.

  • 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, May is the cheapest month in which you can book a flight from Ottawa to USA (average of C$ 232). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 298). 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 Vancouver Intl flights
Hamilton to Vancouver Intl flights
Pearson Intl to Calgary flights
Pierre Elliott Trudeau Intl to Cancún flights
Toronto Island to Vancouver Intl flights
Pearson Intl to Abbotsford flights
Ottawa to Vancouver Intl flights
Pierre Elliott Trudeau Intl to Vancouver Intl flights
Region of Waterloo Intl to Vancouver Intl flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to Newark flights
Pearson Intl to Cancún flights
Pearson Intl to Edmonton flights
Toronto Island to Newark flights
Hamilton to Calgary flights
Toronto Island to Calgary flights
Toronto Island to Halifax flights
Pearson Intl to Halifax flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Mexico City flights
Region of Waterloo Intl to Calgary flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Mexico City flights
Pierre Elliott Trudeau Intl to Calgary flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to Miami flights
Pearson Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Pearson Intl to Fort Lauderdale flights
Hamilton to Halifax flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Toronto Island to Cancún flights
Pearson Intl to Los Angeles flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Pearson Intl to Orlando flights
Pearson Intl to Winnipeg flights
Pearson Intl to San Francisco flights
Pearson Intl to Dallas/Fort Worth flights
Pearson Intl to St. John's flights
Pearson Intl to Charlottetown flights
Pierre Elliott Trudeau Intl to Puerto Vallarta flights
Region of Waterloo Intl to Halifax flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Newark flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Pearson Intl to Cozumel flights
Pierre Elliott Trudeau Intl to Orlando flights
Toronto Island to Edmonton flights
Pearson Intl to Victoria flights

Top 5 airlines flying from Ottawa to USA

Discover the top 5 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 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 214AverageC$ 583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 231AverageC$ 591FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 242AverageC$ 445FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 263AverageC$ 435FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 282AverageC$ 446FlexibilityNo cancel feeOn-time50%
Search Air Transat 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.