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Cheap flights from Ottawa to the United States from C$ 172

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
29 Jul — 5 Aug1
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 29 June 2026.

Sat 22/89:15 a.m.
YOW
-
EWR
1 stop4h 40m
Porter Airlines
Wed 26/84:25 p.m.
EWR
-
YOW
1 stop3h 39m
Porter Airlines
Deal found 25/6C$ 336
Fri 17/72:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Wed 22/72:35 p.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 24/6C$ 338
Tue 28/72:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Mon 3/88:00 a.m.
EWR
-
YOW
1 stop4h 54m
Porter Airlines
Deal found 28/6C$ 339
Fri 24/72:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Wed 29/712:25 p.m.
EWR
-
YOW
2 stops8h 55m
Porter Airlines
Deal found 24/6C$ 341
Mon 3/89:05 a.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Tue 4/84:25 p.m.
EWR
-
YOW
1 stop3h 39m
Porter Airlines
Deal found 28/6C$ 342
Tue 14/75:55 p.m.
YOW
-
EWR
1 stop4h 05m
Porter Airlines
Fri 17/710:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 28/6C$ 343
Fri 31/77:00 a.m.
YOW
-
MCO
Nonstop3h 19m
Porter Airlines
Fri 7/811:20 a.m.
MCO
-
YOW
Nonstop3h 13m
Porter Airlines
Deal found 26/6C$ 345
Fri 24/72:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Multiple Airlines
Mon 27/710:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Multiple Airlines
Deal found 24/6C$ 345
Thu 23/78:00 a.m.
YOW
-
EWR
1 stop5h 55m
Porter Airlines
Mon 27/78:00 a.m.
EWR
-
YOW
1 stop4h 54m
Porter Airlines
Deal found 25/6C$ 346
Fri 24/72:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Mon 27/76:25 a.m.
EWR
-
YOW
2 stops6h 55m
Porter Airlines
Deal found 24/6C$ 348
Sat 25/79:15 a.m.
YOW
-
EWR
1 stop3h 35m
Porter Airlines
Mon 27/78:55 a.m.
EWR
-
YOW
1 stop3h 59m
Porter Airlines
Deal found 24/6C$ 349
Thu 9/78:00 a.m.
YOW
-
EWR
1 stop5h 55m
Porter Airlines
Sun 12/710:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 25/6C$ 351

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 29 June 2026.

Round-trip from

C$ 336

One-way from

C$ 172

Popular in

May

Cheapest in

November

Average price

C$ 446

Good round-trip deal

C$ 406 or less

Good one-way deal

C$ 215 or less
Porter Airlines
  • Porter Airlines
  • 22/8-26/8
  • 2 total stops
  • 8h 19m total
  • Ottawa to USA
Search Deals
Porter Airlines
  • Porter Airlines
  • 29/8
  • Nonstop
  • 1h 35m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 39 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 June 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 29 June 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

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 13/8

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

Nonstop1h 35m

Newark

Thu 20/8

12:25 p.m.-9:20 p.m.

2 stops8h 55m

C$ 373

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 25/7

2:52 p.m.-1:01 a.m.

1 stop10h 09m

Orlando

Sun 26/7

7:09 a.m.-9:35 p.m.

1 stop14h 26m

C$ 387

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 10/9

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

1 stop3h 45m

Newark

Tue 15/9

4:25 p.m.-8:04 p.m.

1 stop3h 39m

C$ 387

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 10/9

5:55 p.m.-10:00 p.m.

1 stop4h 05m

Newark

Sun 13/9

8:55 a.m.-12:54 p.m.

1 stop3h 59m

C$ 392

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Mon 13/7

6:25 a.m.-5:57 p.m.

1 stop11h 32m

Orlando

Tue 14/7

12:34 p.m.-9:35 p.m.

1 stop9h 01m

C$ 396

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Wed 22/7

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

2 stops10h 15m

Newark

Wed 29/7

12:25 p.m.-9:20 p.m.

2 stops8h 55m

C$ 399

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Wed 15/7

5:20 p.m.-9:40 a.m.

1 stop16h 20m

Orlando

Wed 22/7

8:30 p.m.-1:35 a.m.

1 stop5h 05m

C$ 407

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 1/11

5:40 a.m.-7:15 p.m.

2 stops16h 35m

Las Vegas Harry Reid Intl

Tue 10/11

8:00 a.m.-12:42 a.m.

2 stops13h 42m

C$ 409
Quickest round-trip

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Sun 2/8

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

Nonstop1h 35m

Newark

Thu 6/8

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

Nonstop1h 45m

C$ 409

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 30/7

8:00 a.m.-12:50 p.m.

1 stop4h 50m

Newark

Sat 1/8

8:00 a.m.-12:54 p.m.

1 stop4h 54m

C$ 409

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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$ 441). Flying from Ottawa to USA in May is currently the most expensive (average of C$ 644). 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 29 June 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 23% of weekly flights between Ottawa and United States have experienced delays in the past year, with the average delay time being 133 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 17% of flights being delayed.

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

Booking 85 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 29 June 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
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
441 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Transat
7.8
Good
559 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,894 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,388 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,270 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Overall

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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$ 44), WestJet (C$ 124), and Porter Airlines (C$ 147).

  • 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 LaGuardia.

  • 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$ 441). Flying from Ottawa to USA in May is currently the most expensive (average of C$ 644). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 250AverageC$ 623FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 274AverageC$ 652FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 296AverageC$ 547FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 300AverageC$ 495FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 348AverageC$ 515FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 568AverageC$ 772FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights
American AirlinesCheapestC$ 610AverageC$ 843FlexibilityNo 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.

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