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Cheap flights from Ottawa to the United States from C$ 159

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
17 May — 24 May1
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 17 April 2026.

Mon 25/57:00 a.m.
YOW
-
FLL
Nonstop3h 35m
Porter Airlines
Sat 30/511:35 a.m.
FLL
-
YOW
Nonstop3h 25m
Porter Airlines
Deal found 13/4C$ 284
Sat 23/52:20 p.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Tue 9/63:55 p.m.
EWR
-
YOW
Nonstop1h 42m
Porter Airlines
Deal found 14/4C$ 289
Sat 30/52:20 p.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Sat 6/63:55 p.m.
EWR
-
YOW
Nonstop1h 42m
Porter Airlines
Deal found 15/4C$ 291
Wed 6/59:05 a.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Sun 10/510:35 a.m.
EWR
-
YOW
Nonstop1h 40m
Porter Airlines
Deal found 14/4C$ 292
Sat 30/57:00 a.m.
YOW
-
FLL
Nonstop3h 35m
Porter Airlines
Sat 6/611:45 a.m.
FLL
-
YOW
Nonstop3h 30m
Porter Airlines
Deal found 16/4C$ 292
Thu 7/52:20 p.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Mon 11/510:35 a.m.
EWR
-
YOW
Nonstop1h 40m
Porter Airlines
Deal found 16/4C$ 295
Fri 29/52:20 p.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Sun 31/510:35 a.m.
EWR
-
YOW
Nonstop1h 40m
Porter Airlines
Deal found 16/4C$ 296
Wed 6/511:00 a.m.
YOW
-
EWR
1 stop4h 10m
Porter Airlines
Sat 9/51:30 p.m.
EWR
-
YOW
1 stop5h 44m
Porter Airlines
Deal found 13/4C$ 298
Wed 27/57:00 a.m.
YOW
-
FLL
1 stop5h 44m
Porter Airlines
Sat 30/511:35 a.m.
FLL
-
YOW
Nonstop3h 25m
Porter Airlines
Deal found 16/4C$ 299
Sat 20/67:00 a.m.
YOW
-
MCO
Nonstop3h 19m
Porter Airlines
Mon 27/78:35 p.m.
MCO
-
YOW
Nonstop3h 13m
Porter Airlines
Deal found 15/4C$ 300
Tue 5/53:30 p.m.
YOW
-
EWR
1 stop3h 40m
Porter Airlines
Fri 8/51:30 p.m.
EWR
-
YOW
1 stop6h 34m
Porter Airlines
Deal found 13/4C$ 300
Thu 7/59:05 a.m.
YOW
-
EWR
Nonstop1h 33m
Porter Airlines
Sun 10/510:35 a.m.
EWR
-
YOW
Nonstop1h 40m
Porter Airlines
Deal found 14/4C$ 302

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 17 April 2026.

Round-trip from

C$ 284

One-way from

C$ 159

Popular in

February

Cheapest in

July

Average price

C$ 444

Good round-trip deal

C$ 381 or less

Good one-way deal

C$ 203 or less
Porter Airlines
  • Porter Airlines
  • 25/5-30/5
  • Nonstop
  • 7h 00m total
  • Ottawa to USA
Search Deals
Porter Airlines
  • Porter Airlines
  • 18/5
  • Nonstop
  • 3h 19m total
  • Ottawa to USA
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Wed 13/5

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

1 stop12h 05m

Orlando

Fri 15/5

7:03 p.m.-10:03 a.m.

1 stop15h 00m

C$ 329

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Tue 9/6

3:10 p.m.-9:31 p.m.

1 stop6h 21m

Orlando

Tue 16/6

7:05 p.m.-10:03 a.m.

1 stop14h 58m

C$ 329

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sun 31/5

5:50 p.m.-11:32 p.m.

1 stop5h 42m

Orlando

Thu 4/6

7:13 a.m.-9:35 p.m.

1 stop14h 22m

C$ 332

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Mon 11/5

10:00 a.m.-12:59 a.m.

1 stop14h 59m

Orlando

Tue 26/5

7:13 a.m.-9:35 p.m.

1 stop14h 22m

C$ 336

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Mon 11/5

3:10 p.m.-9:58 p.m.

1 stop6h 48m

Orlando

Fri 15/5

7:03 p.m.-10:03 a.m.

1 stop15h 00m

C$ 344

OttawaTampa

YOW - TPA

YOWTPA

Ottawa

Sun 24/5

6:00 a.m.-3:15 p.m.

1 stop9h 15m

Tampa

Sat 30/5

7:35 a.m.-1:59 p.m.

1 stop6h 24m

C$ 350

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Tue 5/5

1:45 p.m.-7:10 p.m.

1 stop5h 25m

Newark

Fri 8/5

9:10 a.m.-12:54 p.m.

1 stop3h 44m

C$ 363
Quickest round-trip

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 29/5

9:05 a.m.-10:38 a.m.

Nonstop1h 33m

Newark

Tue 2/6

3:55 p.m.-5:37 p.m.

Nonstop1h 42m

C$ 363

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 29/5

2:20 p.m.-3:53 p.m.

Nonstop1h 33m

Newark

Mon 1/6

3:55 p.m.-5:37 p.m.

Nonstop1h 42m

C$ 365

OttawaFort Lauderdale

YOW - FLL

YOWFLL

Ottawa

Fri 8/5

10:44 a.m.-8:13 p.m.

1 stop9h 29m

Fort Lauderdale

Sun 17/5

7:00 a.m.-1:59 p.m.

1 stop6h 59m

C$ 368

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

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$ 422). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 520). 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 17 April 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 24% of weekly flights between Ottawa and United States have experienced delays in the past year, with the average delay time being 136 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 Sunday 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 19% of flights being delayed.

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 17 April 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
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
536 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,598 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,321 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,931 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 3h 26m. There are 526 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$ 42), WestJet (C$ 120), and Porter Airlines (C$ 142).

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

    The most popular flight routes from Ottawa to USA are Ottawa - Newark, Ottawa - New York LaGuardia and Ottawa - New York John F Kennedy Intl.

  • 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$ 422). Flying from Ottawa to USA in March is currently the most expensive (average of C$ 520). 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

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Top 6 airlines flying from Ottawa to USA

Discover the top 6 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 170AverageC$ 574FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 240AverageC$ 433FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 243AverageC$ 565FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 267AverageC$ 484FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 317AverageC$ 488FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
APG AirlinesCheapestC$ 549AverageC$ 746FlexibilityNo cancel feeOn-timeN/A
Search APG 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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