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

YOW — LAX
15 Oct — 22 Oct1
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

Thu 22/1012:25 p.m. -
1 stop9h 05m
Wed 28/1012:50 p.m. -
1 stop9h 10m
Deal found 11/9C$ 311
Wed 18/115:30 a.m. -
2 stops13h 25m
Sun 22/119:35 a.m. -
2 stops11h 26m
Deal found 10/9C$ 324
Fri 4/126:10 a.m. -
2 stops13h 05m
Fri 11/1210:45 a.m. -
2 stops10h 59m
Deal found 12/9C$ 325
Sun 6/125:30 a.m. -
2 stops13h 25m
Thu 10/1211:50 a.m. -
1 stop9h 11m
Deal found 10/9C$ 328
Wed 18/115:30 a.m. -
2 stops13h 25m
Sat 21/1111:50 a.m. -
1 stop9h 11m
Deal found 12/9C$ 329
Wed 28/103:10 p.m. -
Nonstop1h 35m
Sat 31/105:25 p.m. -
Nonstop1h 40m
Deal found 14/9C$ 329
Sat 10/102:10 p.m. -
Nonstop1h 35m
Sat 17/102:35 p.m. -
Nonstop1h 45m
Deal found 10/9C$ 331
Sat 26/92:10 p.m. -
Nonstop1h 35m
Tue 29/92:35 p.m. -
Nonstop1h 40m
Deal found 10/9C$ 332
Sat 3/1012:25 p.m. -
2 stops12h 15m
Wed 7/106:10 p.m. -
1 stop8h 25m
Deal found 10/9C$ 339
Mon 28/92:10 p.m. -
Nonstop1h 35m
Wed 30/92:35 p.m. -
Nonstop1h 40m
Deal found 14/9C$ 339
Mon 26/107:05 a.m. -
Nonstop3h 40m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 14/9C$ 339
Thu 1/102:10 p.m. -
Nonstop1h 35m
Mon 5/102:35 p.m. -
Nonstop1h 45m
Deal found 12/9C$ 340

Find flight deals from Ottawa to USA

Round-trip from

C$ 311

One-way from

C$ 172

Popular in

August

Cheapest in

January

Average price

C$ 460

Good round-trip deal

C$ 360 or less

Good one-way deal

C$ 196 or less
WestJet
  • WestJet
  • 22/10-28/10
  • 2 total stops
  • 18h 15m total
  • Ottawa to USA
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Porter Airlines
  • Porter Airlines
  • 17/11-31/12
  • Nonstop
  • 3h 40m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 55 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Ottawa to USA.
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Price to beat on a one-way flight from Ottawa to USA.
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Cheapflights Fare Finder

 
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

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Fri 23/10

12:25 p.m.-9:40 p.m.

2 stops12h 15m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 207
Quickest round-trip

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sat 31/10

3:10 p.m.-4:45 p.m.

Nonstop1h 35m

Newark

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 210

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sat 10/10

6:05 a.m.-10:44 p.m.

1 stop16h 39m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 211

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Mon 28/9

12:25 p.m.-6:30 p.m.

1 stop9h 05m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 215

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Fri 11/12

3:10 p.m.-10:30 p.m.

1 stop7h 20m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 215

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Tue 27/10

4:46 p.m.-3:46 p.m.

2 stops23h 00m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 215

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Tue 20/10

5:20 p.m.-3:05 p.m.

2 stops21h 45m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 215

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sat 5/12

6:00 a.m.-11:59 p.m.

2 stops17h 59m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 217

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Fri 13/11

6:00 a.m.-9:23 p.m.

1 stop15h 23m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 217

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sat 31/10

3:10 p.m.-10:23 p.m.

1 stop7h 13m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 217

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

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

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$ 453). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 613). 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?

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

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
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Porter Airlines
8.0
Very good
461 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Transat
7.7
Good
579 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
United Airlines
7.4
Good
10,208 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
WestJet
7.2
Good
3,443 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Canada
7.1
Good
11,630 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Entertainment

6.9

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Related info for your journey

  • 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$ 144).

  • What are the most popular routes from Ottawa to USA?

    The most popular flight routes from Ottawa to USA are Ottawa - Fort Lauderdale, Ottawa - Orlando and Ottawa - Newark.

  • 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$ 453). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 613). 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

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 135AverageC$ 640FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 251AverageC$ 624FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 275AverageC$ 543FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 305AverageC$ 510FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 344AverageC$ 565FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 597AverageC$ 816FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 762AverageC$ 911FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

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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