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Cheap flights from Ottawa to the United States from C$ 153

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
9 Sep — 16 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 10 August 2026.

Sat 29/82:10 p.m. -
Nonstop1h 35m
Tue 1/92:35 p.m. -
Nonstop1h 40m
Deal found 5/8C$ 242
Sat 19/92:10 p.m. -
Nonstop1h 35m
Tue 22/92:35 p.m. -
Nonstop1h 40m
Deal found 7/8C$ 244
Sat 7/1110:35 a.m. -
Nonstop1h 35m
Sun 15/1112:50 p.m. -
Nonstop1h 40m
Deal found 7/8C$ 245
Thu 3/99:05 a.m. -
Nonstop1h 35m
Thu 10/92:35 p.m. -
Nonstop1h 40m
Deal found 6/8C$ 251
Wed 2/92:10 p.m. -
Nonstop1h 35m
Wed 9/96:25 a.m. -
1 stop5h 02m
Deal found 5/8C$ 252
Sat 29/82:10 p.m. -
Nonstop1h 35m
Sat 12/92:35 p.m. -
Nonstop1h 40m
Deal found 5/8C$ 255
Sat 19/92:10 p.m. -
Nonstop1h 35m
Sat 26/92:35 p.m. -
Nonstop1h 40m
Deal found 5/8C$ 256
Thu 12/113:10 p.m. -
Nonstop1h 35m
Tue 17/1112:50 p.m. -
Nonstop1h 40m
Deal found 6/8C$ 258
Sat 5/92:10 p.m. -
Nonstop1h 35m
Sat 12/92:35 p.m. -
Nonstop1h 40m
Deal found 8/8C$ 259
Mon 14/92:10 p.m. -
Nonstop1h 35m
Thu 17/92:35 p.m. -
Nonstop1h 40m
Deal found 6/8C$ 263
Thu 27/82:30 p.m. -
Nonstop1h 30m
Sun 30/83:55 p.m. -
Nonstop1h 28m
Deal found 5/8C$ 283
Fri 25/92:20 p.m. -
Nonstop1h 30m
Mon 28/92:20 p.m. -
Nonstop1h 24m
Deal found 7/8C$ 284

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 10 August 2026.

Round-trip from

C$ 242

One-way from

C$ 153

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
  • 29/8-1/9
  • Nonstop
  • 3h 15m total
  • Ottawa to USA
Search Deals
Porter Airlines
  • Porter Airlines
  • 30/10
  • Nonstop
  • 1h 35m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 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 10 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

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sat 12/9

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

Nonstop1h 35m

Newark

Tue 15/9

1:30 p.m.-5:52 p.m.

1 stop4h 22m

C$ 279

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Fri 28/8

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

Nonstop1h 30m

Boston Logan Intl

Mon 31/8

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

Nonstop1h 28m

C$ 284
Quickest round-trip

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Wed 2/9

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

Nonstop1h 30m

Boston Logan Intl

Sun 6/9

3:40 p.m.-5:04 p.m.

Nonstop1h 24m

C$ 322

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sat 29/8

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

Nonstop1h 35m

Newark

Mon 31/8

6:00 a.m.-9:39 a.m.

1 stop3h 39m

C$ 328

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Thu 27/8

9:05 a.m.-2:55 p.m.

1 stop5h 50m

Newark

Mon 31/8

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

2 stops8h 55m

C$ 337

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Thu 3/9

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

1 stop4h 35m

Boston Logan Intl

Sat 5/9

7:00 a.m.-12:42 p.m.

1 stop5h 42m

C$ 337

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Wed 2/9

3:30 p.m.-7:40 p.m.

1 stop4h 10m

Boston Logan Intl

Wed 9/9

7:00 a.m.-12:52 p.m.

1 stop5h 52m

C$ 337

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Mon 31/8

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

Nonstop1h 32m

Newark

Mon 7/9

6:00 a.m.-11:30 a.m.

1 stop5h 30m

C$ 348

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Sun 6/9

6:05 a.m.-2:22 p.m.

1 stop8h 17m

Boston Logan Intl

Sun 6/9

6:07 p.m.-10:35 p.m.

1 stop4h 28m

C$ 350

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Fri 25/9

2:20 p.m.-3:50 p.m.

Nonstop1h 30m

Boston Logan Intl

Mon 28/9

2:20 p.m.-3:44 p.m.

Nonstop1h 24m

C$ 358

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

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$ 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 10 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 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 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 10 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
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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
454 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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
10,103 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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
3,430 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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
11,460 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

6.9

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 - Fort Lauderdale, Ottawa - Newark 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

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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 10 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$ 494FlexibilityNo 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.

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