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Cheap flights from Ottawa to the United States from C$ 171

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
11 Aug — 18 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 12 July 2026.

Tue 25/89:05 a.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Tue 1/910:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 11/7C$ 255
Sun 16/89:05 a.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Wed 19/810:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 11/7C$ 270
Wed 19/82:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Wed 26/810:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 11/7C$ 272
Wed 12/88:00 a.m.
YOW
-
EWR
1 stop3h 45m
Porter Airlines
Wed 19/86:25 a.m.
EWR
-
YOW
1 stop6h 29m
Porter Airlines
Deal found 10/7C$ 280
Mon 17/89:05 a.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Thu 20/810:40 a.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 12/7C$ 283
Tue 4/89:05 a.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Wed 12/82:35 p.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 11/7C$ 284
Tue 28/75:55 p.m.
YOW
-
EWR
1 stop4h 05m
Porter Airlines
Fri 31/78:00 a.m.
EWR
-
YOW
1 stop4h 54m
Porter Airlines
Deal found 7/7C$ 286
Fri 7/82:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Tue 11/82:35 p.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 9/7C$ 289
Thu 20/82:10 p.m.
YOW
-
EWR
Nonstop1h 35m
Porter Airlines
Tue 25/82:35 p.m.
EWR
-
YOW
Nonstop1h 45m
Porter Airlines
Deal found 11/7C$ 290
Sat 1/82:30 p.m.
YOW
-
BOS
Nonstop1h 30m
Porter Airlines
Wed 12/83:55 p.m.
BOS
-
YOW
Nonstop1h 28m
Porter Airlines
Deal found 11/7C$ 299
Fri 7/82:30 p.m.
YOW
-
BOS
Nonstop1h 30m
Porter Airlines
Fri 14/83:55 p.m.
BOS
-
YOW
Nonstop1h 28m
Porter Airlines
Deal found 10/7C$ 300
Sat 8/82:30 p.m.
YOW
-
BOS
Nonstop1h 30m
Porter Airlines
Sat 15/83:55 p.m.
BOS
-
YOW
Nonstop1h 28m
Porter Airlines
Deal found 9/7C$ 304

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 12 July 2026.

Round-trip from

C$ 255

One-way from

C$ 171

Popular in

July

Cheapest in

November

Average price

C$ 518

Good round-trip deal

C$ 370 or less

Good one-way deal

C$ 210 or less
Porter Airlines
  • Porter Airlines
  • 25/8-1/9
  • Nonstop
  • 3h 20m 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. 8% potential increase in price (C$ 57 potential increase over avg. RT price).
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 July 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 12 July 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

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Sat 8/8

10:40 a.m.-3:15 p.m.

1 stop4h 35m

Boston Logan Intl

Sat 15/8

7:10 a.m.-12:54 p.m.

1 stop5h 44m

C$ 330

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 21/8

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

Nonstop1h 35m

Newark

Fri 28/8

12:25 p.m.-12:25 a.m.

2 stops12h 00m

C$ 348

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Wed 26/8

8:00 a.m.-4:55 p.m.

2 stops8h 55m

Newark

Wed 2/9

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

1 stop6h 34m

C$ 350

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Thu 3/9

2:30 p.m.-4:00 p.m.

Nonstop1h 30m

Boston Logan Intl

Sat 5/9

3:55 p.m.-5:23 p.m.

Nonstop1h 28m

C$ 354

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Tue 18/8

9:55 a.m.-2:02 p.m.

1 stop4h 07m

Boston Logan Intl

Sun 23/8

5:45 a.m.-10:35 a.m.

1 stop4h 50m

C$ 357

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Sat 1/8

6:05 a.m.-7:34 a.m.

Nonstop1h 29m

Newark

Mon 10/8

6:00 a.m.-10:35 a.m.

1 stop4h 35m

C$ 364

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Fri 14/8

6:05 a.m.-4:48 p.m.

1 stop10h 43m

Boston Logan Intl

Fri 14/8

7:00 p.m.-9:11 a.m.

1 stop14h 11m

C$ 374
Quickest round-trip

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Thu 30/7

2:30 p.m.-4:00 p.m.

Nonstop1h 30m

Boston Logan Intl

Wed 5/8

3:55 p.m.-5:23 p.m.

Nonstop1h 28m

C$ 375

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Wed 29/7

2:30 p.m.-4:00 p.m.

Nonstop1h 30m

Boston Logan Intl

Wed 5/8

3:55 p.m.-5:23 p.m.

Nonstop1h 28m

C$ 375

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 6/8

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

Nonstop1h 35m

Newark

Mon 10/8

10:40 a.m.-12:25 p.m.

Nonstop1h 45m

C$ 382

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Ottawa to USA (average of C$ 459). Flying from Ottawa to USA in June is currently the most expensive (average of C$ 672). 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 12 July 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 12 July 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
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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
7.9
Good
442 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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
564 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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
9,979 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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
3,409 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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
11,331 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

7.9

Comfort

7.9

Entertainment

6.9

Food

7.5

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 4h 07m. There are 497 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$ 459). Flying from Ottawa to USA in June is currently the most expensive (average of C$ 672). 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 12 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 249AverageC$ 625FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 273AverageC$ 645FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 299AverageC$ 495FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 302AverageC$ 547FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 351AverageC$ 523FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 567AverageC$ 770FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights
American AirlinesCheapestC$ 609AverageC$ 841FlexibilityNo 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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