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Cheap flights from Ottawa to the United States from C$ 144

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 244

One-way from

C$ 144

Popular in

December

Cheapest in

September

Average price

C$ 352

Good round-trip deal

C$ 313 or less

Good one-way deal

C$ 214 or less
Porter Airlines
  • Porter Airlines
  • 25/2-10/3
  • 1 total stop
  • 10h 34m total
  • Ottawa to USA
Search Deals
Air Transat
  • Air Transat
  • 1/12
  • 2 total stops
  • 13h 10m total
  • Ottawa to USA
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 11 September 2025.

Mon 10/116:45 a.m.YOW - MCO
1 stop7h 15mPorter Airlines
Thu 20/112:00 p.m.MCO - YOW
Nonstop3h 13mPorter Airlines
Deal found 11/9C$ 288
Mon 20/103:50 p.m.YOW - FLL
Nonstop3h 40mPorter Airlines
Fri 24/101:50 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Deal found 11/9C$ 290
Wed 15/107:00 a.m.YOW - MCO
1 stop5h 42mPorter Airlines
Mon 20/101:45 p.m.MCO - YOW
Nonstop3h 12mPorter Airlines
Deal found 9/9C$ 291
Wed 8/103:50 p.m.YOW - FLL
Nonstop3h 40mPorter Airlines
Wed 15/101:50 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Deal found 10/9C$ 291
Fri 7/113:05 p.m.YOW - MCO
1 stop8h 15mPorter Airlines
Mon 10/118:50 a.m.MCO - YOW
1 stop8h 01mPorter Airlines
Deal found 8/9C$ 292
Sat 8/119:30 a.m.YOW - MCO
Nonstop3h 28mPorter Airlines
Sun 9/112:00 p.m.MCO - YOW
Nonstop3h 13mPorter Airlines
Deal found 8/9C$ 294
Thu 2/107:00 a.m.YOW - FLL
1 stop5h 48mPorter Airlines
Wed 8/101:50 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Deal found 10/9C$ 294
Sun 19/104:25 p.m.YOW - MCO
Nonstop3h 16mPorter Airlines
Wed 22/101:45 p.m.MCO - YOW
Nonstop3h 12mPorter Airlines
Deal found 9/9C$ 295
Sat 18/105:55 a.m.YOW - TPA
1 stop28h 44mWestJet
Fri 24/106:25 p.m.TPA - YOW
1 stop5h 57mWestJet
Deal found 10/9C$ 298
Thu 23/104:25 p.m.YOW - MCO
Nonstop3h 16mPorter Airlines
Thu 30/103:00 p.m.MCO - YOW
1 stop9h 41mPorter Airlines
Deal found 9/9C$ 301
Tue 16/124:15 p.m.YOW - FLL
Nonstop3h 40mPorter Airlines
Wed 1/48:55 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Deal found 10/9C$ 302
Fri 28/113:05 p.m.YOW - MCO
1 stop8h 15mPorter Airlines
Mon 1/122:00 p.m.MCO - YOW
Nonstop3h 13mPorter Airlines
Deal found 11/9C$ 303

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 11 September 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

Sat 8/11

9:30 a.m.-12:58 p.m.

Nonstop3h 28m

Orlando

Sun 9/11

2:00 p.m.-5:13 p.m.

Nonstop3h 13m

C$ 294

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Tue 4/11

9:30 a.m.-12:58 p.m.

Nonstop3h 28m

Orlando

Sat 15/11

9:15 p.m.-12:42 a.m.

1 stop27h 27m

C$ 312

OttawaFort Lauderdale

YOW - FLL

YOWFLL

Ottawa

Sun 12/10

3:50 p.m.-7:30 p.m.

Nonstop3h 40m

Fort Lauderdale

Thu 16/10

1:50 p.m.-5:20 p.m.

Nonstop3h 30m

C$ 320

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Thu 2/10

12:30 p.m.-6:05 p.m.

1 stop5h 35m

Orlando

Sat 4/10

6:00 a.m.-12:16 p.m.

1 stop6h 16m

C$ 326

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 24/10

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

Nonstop3h 16m

Orlando

Tue 28/10

2:00 p.m.-5:13 p.m.

Nonstop3h 13m

C$ 333

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 28/11

7:25 p.m.-2:00 p.m.

2 stops18h 35m

Orlando

Sun 30/11

2:00 p.m.-5:13 p.m.

Nonstop3h 13m

C$ 334

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Mon 20/10

7:29 p.m.-12:45 a.m.

1 stop5h 16m

Orlando

Wed 22/10

2:30 p.m.-9:35 p.m.

1 stop7h 05m

C$ 335

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 18/10

7:29 p.m.-12:45 a.m.

1 stop5h 16m

Orlando

Fri 24/10

6:00 a.m.-11:45 a.m.

1 stop5h 45m

C$ 335

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 18/10

7:29 p.m.-12:45 a.m.

1 stop5h 16m

Orlando

Thu 23/10

6:00 a.m.-11:45 a.m.

1 stop5h 45m

C$ 335

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 11/10

7:29 p.m.-12:45 a.m.

1 stop5h 16m

Orlando

Sat 18/10

8:00 a.m.-2:13 p.m.

1 stop6h 13m

C$ 335

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 60 results
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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$ 231). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 296). 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 11 September 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 11 September 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
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,937 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,091 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

Food

7.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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$ 144), WestJet (C$ 157), and Porter Airlines (C$ 159).

  • 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 - 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$ 231). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 296). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ottawa to USA

Discover the top 6 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 215AverageC$ 585FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 232AverageC$ 574FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 243AverageC$ 425FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 264AverageC$ 432FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 284AverageC$ 444FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 555AverageC$ 754FlexibilityNo cancel feeOn-timeN/A
Search APG 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.

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