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Cheap flights from Ottawa to the United States from C$ 181

YOW — LAX
22 Oct — 29 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

Mon 19/107:15 a.m. -
Nonstop3h 30m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 18/9C$ 294
Mon 26/107:05 a.m. -
Nonstop3h 40m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 21/9C$ 297
Mon 19/107:15 a.m. -
Nonstop3h 30m
Thu 29/101:55 p.m. -
Nonstop3h 25m
Deal found 21/9C$ 303
Mon 26/107:05 a.m. -
Nonstop3h 40m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 19/9C$ 304
Tue 24/117:00 a.m. -
1 stop5h 55m
Wed 2/127:45 p.m. -
Nonstop3h 25m
Deal found 19/9C$ 307
Sat 21/1112:45 p.m. -
1 stop6h 25m
Sat 28/1111:00 a.m. -
1 stop6h 15m
Deal found 17/9C$ 308
Sun 25/103:25 p.m. -
Nonstop3h 40m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 19/9C$ 310
Tue 27/107:00 a.m. -
1 stop5h 55m
Fri 30/108:05 p.m. -
Nonstop3h 27m
Deal found 18/9C$ 311
Mon 19/102:10 p.m. -
Nonstop1h 35m
Mon 26/102:15 p.m. -
1 stop5h 54m
Deal found 21/9C$ 321
Sat 10/102:10 p.m. -
Nonstop1h 35m
Sun 11/102:35 p.m. -
Nonstop1h 45m
Deal found 18/9C$ 324
Sat 17/102:10 p.m. -
Nonstop1h 35m
Wed 21/102:35 p.m. -
Nonstop1h 45m
Deal found 21/9C$ 327
Tue 6/102:10 p.m. -
Nonstop1h 35m
Tue 13/1011:20 a.m. -
1 stop6h 32m
Deal found 20/9C$ 328

Find flight deals from Ottawa to USA

Round-trip from

C$ 294

One-way from

C$ 181

Popular in

August

Cheapest in

January

Average price

C$ 464

Good round-trip deal

C$ 361 or less

Good one-way deal

C$ 190 or less
Porter Airlines
  • Porter Airlines
  • 19/10-30/10
  • Nonstop
  • 6h 57m total
  • Ottawa to USA
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Porter Airlines
  • Porter Airlines
  • 27/10-31/12
  • 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).
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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

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Mon 19/10

7:30 p.m.-11:03 a.m.

1 stop15h 33m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 223

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Tue 20/10

7:30 p.m.-1:32 p.m.

2 stops18h 02m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 223

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Tue 13/10

6:01 p.m.-7:40 p.m.

Nonstop1h 39m

Newark

Wed 31/12

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

Nonstop0h 00m

C$ 224

OttawaNewark

YOW Ottawa - EWR Newark

YOWEWR

Ottawa

Sat 17/10

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

Nonstop1h 32m

Newark

Wed 31/12

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

Nonstop0h 00m

C$ 224

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sat 10/10

3:10 p.m.-8:58 p.m.

1 stop5h 48m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 224

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Thu 1/10

3:10 p.m.-8:58 p.m.

1 stop5h 48m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 224

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sun 15/11

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$ 224

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$ 224

OttawaFort Lauderdale

YOW Ottawa - FLL Fort Lauderdale

YOWFLL

Ottawa

Sun 11/10

7:30 p.m.-11:03 a.m.

1 stop15h 33m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 224
Quickest round-trip

OttawaBoston

YOW Ottawa - BOS Boston Logan Intl

YOWBOS

Ottawa

Fri 6/11

3:15 p.m.-4:42 p.m.

Nonstop1h 27m

Boston Logan Intl

Wed 31/12

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

Nonstop0h 00m

C$ 230

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

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$ 465). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 618). 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
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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
462 reviews
Porter Airlines
8.0
Very good
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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
581 reviews
Porter Airlines
8.0
Very good
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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
10,222 reviews
Porter Airlines
8.0
Very good
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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
3,446 reviews
Porter Airlines
8.0
Very good
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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
11,663 reviews
Porter Airlines
8.0
Very good
462 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.6

Crew

8.6

Entertainment

6.9

Overall

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 3h 40m. There are 2176 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$ 123), 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 - 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$ 465). Flying from Ottawa to USA in August is currently the most expensive (average of C$ 618). 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$ 161AverageC$ 643FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 249AverageC$ 657FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 280AverageC$ 550FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 321AverageC$ 519FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 347AverageC$ 570FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 603AverageC$ 823FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 769AverageC$ 919FlexibilityNo 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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