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Cheap flights from the United States to Ottawa from C$ 99

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 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YOW
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from USA to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from USA to Ottawa
Explore the most affordable flight options available from USA to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Thu 20/111:55 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Tue 25/114:15 p.m.YOW - FLL
Nonstop3h 35mPorter Airlines
Deal found 30/10C$ 242
Fri 26/128:55 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Wed 31/124:15 p.m.YOW - FLL
Nonstop3h 40mPorter Airlines
Deal found 29/10C$ 289
Sat 6/128:55 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Mon 15/123:00 p.m.YOW - FLL
1 stop8h 52mPorter Airlines
Deal found 30/10C$ 293
Fri 28/118:30 a.m.FLL - YOW
1 stop8h 19mMultiple Airlines
Thu 4/129:30 a.m.YOW - FLL
2 stops14h 22mMultiple Airlines
Deal found 28/10C$ 297
Wed 19/116:10 p.m.EWR - YOW
1 stop4h 19mPorter Airlines
Mon 24/113:35 p.m.YOW - EWR
1 stop4h 10mPorter Airlines
Deal found 28/10C$ 300
Wed 19/115:15 p.m.EWR - YOW
1 stop3h 39mPorter Airlines
Sat 22/113:35 p.m.YOW - EWR
1 stop4h 10mPorter Airlines
Deal found 29/10C$ 302
Thu 20/116:10 p.m.EWR - YOW
1 stop4h 19mPorter Airlines
Tue 9/124:35 p.m.YOW - EWR
1 stop4h 35mPorter Airlines
Deal found 29/10C$ 303
Thu 20/112:45 p.m.FLL - YOW
1 stop6h 33mAir Canada
Tue 25/1110:50 a.m.YOW - FLL
1 stop6h 50mAir Canada
Deal found 30/10C$ 303
Thu 20/113:45 p.m.EWR - YOW
Nonstop1h 40mPorter Airlines
Sun 23/113:55 p.m.YOW - EWR
Nonstop1h 30mPorter Airlines
Deal found 28/10C$ 306
Thu 27/119:40 p.m.FLL - YOW
Nonstop3h 22mAir Canada
Fri 5/126:15 a.m.YOW - FLL
Nonstop3h 53mAir Canada
Deal found 30/10C$ 306
Thu 20/111:55 p.m.FLL - YOW
Nonstop3h 30mPorter Airlines
Sun 23/116:45 a.m.YOW - FLL
1 stop6h 10mPorter Airlines
Deal found 30/10C$ 307
Fri 21/116:10 p.m.EWR - YOW
1 stop4h 19mPorter Airlines
Sun 23/118:40 a.m.YOW - EWR
1 stop5h 20mPorter Airlines
Deal found 28/10C$ 310

Cheap flight deals from USA to Ottawa

Keep the following information in mind while searching for USA to Ottawa flight deals. Data was last updated 30 October 2025.

Round-trip from

C$ 235

One-way from

C$ 99

Popular in

September

Cheapest in

April

Average price

C$ 380

Good round-trip deal

C$ 157 or less

Good one-way deal

C$ 133 or less
Air Transat
  • Air Transat
  • 16/1-18/1
  • 2 total stops
  • 21h 45m total
  • USA to Ottawa
Search Deals
Porter Airlines
  • Porter Airlines
  • 20/11
  • Nonstop
  • 3h 30m total
  • USA to Ottawa
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from USA to Ottawa.
Search Deals
Price to beat on a one-way flight from USA to Ottawa.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA to Ottawa 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 30 October 2025.
Use the filters below to find and compare flights from the United States to Ottawa that are best for you.

Fly from

USA

Fly to

Ottawa

Route

Depart

Return

Price

Fort LauderdaleOttawa

FLL - YOW

FLLYOW

Fort Lauderdale

Fri 16/1

8:55 p.m.-12:25 a.m.

Nonstop3h 30m

Ottawa

Sun 18/1

4:20 p.m.-10:35 a.m.

2 stops18h 15m

C$ 235

Fort LauderdaleOttawa

FLL - YOW

FLLYOW

Fort Lauderdale

Fri 16/1

8:55 p.m.-12:25 a.m.

Nonstop3h 30m

Ottawa

Sun 18/1

4:15 p.m.-7:55 p.m.

Nonstop3h 40m

C$ 267

Fort LauderdaleOttawa

FLL - YOW

FLLYOW

Fort Lauderdale

Thu 20/11

1:55 p.m.-5:25 p.m.

Nonstop3h 30m

Ottawa

Tue 25/11

6:45 a.m.-12:55 p.m.

1 stop6h 10m

C$ 292

NewarkOttawa

EWR - YOW

EWRYOW

Newark

Sat 22/11

10:55 a.m.-12:35 p.m.

Nonstop1h 40m

Ottawa

Mon 24/11

3:35 p.m.-7:45 p.m.

1 stop4h 10m

C$ 302

Fort LauderdaleOttawa

FLL - YOW

FLLYOW

Fort Lauderdale

Thu 20/11

2:45 p.m.-9:18 p.m.

1 stop6h 33m

Ottawa

Tue 25/11

10:50 a.m.-5:40 p.m.

1 stop6h 50m

C$ 303

Fort LauderdaleOttawa

FLL - YOW

FLLYOW

Fort Lauderdale

Thu 27/11

9:40 p.m.-1:02 a.m.

Nonstop3h 22m

Ottawa

Fri 5/12

6:15 a.m.-10:08 a.m.

Nonstop3h 53m

C$ 306

NewarkOttawa

EWR - YOW

EWRYOW

Newark

Thu 20/11

3:45 p.m.-5:25 p.m.

Nonstop1h 40m

Ottawa

Sun 23/11

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

C$ 307

NewarkOttawa

EWR - YOW

EWRYOW

Newark

Sun 23/11

10:55 a.m.-12:35 p.m.

Nonstop1h 40m

Ottawa

Tue 25/11

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

C$ 307

NewarkOttawa

EWR - YOW

EWRYOW

Newark

Tue 25/11

10:55 a.m.-12:35 p.m.

Nonstop1h 40m

Ottawa

Tue 25/11

4:35 p.m.-9:10 p.m.

1 stop4h 35m

C$ 309

NewarkOttawa

EWR - YOW

EWRYOW

Newark

Mon 8/12

10:55 a.m.-12:35 p.m.

Nonstop1h 40m

Ottawa

Tue 9/12

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

C$ 313

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/10

Showing 1-10 of 60 results
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Best time to book a flight from USA to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from USA 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 the United States to Ottawa

What is the cheapest month to book a flight from USA to Ottawa?

Currently, April is the cheapest month in which you can book a flight from USA to Ottawa (average of C$ 53). Flying from USA to Ottawa in September is currently the most expensive (average of C$ 177). 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 US to YOW?

Find hourly flight availability from USA to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 12% on flights from USA to Ottawa by exploring options for tickets in the evening.

What is the cheapest day to fly from USA to Ottawa?

Use this chart to determine the cheapest time to fly round-trip from USA to Ottawa. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their USA to Ottawa flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 30 October 2025.
Read reviews from past customers who have flown Porter Airlines,United Airlines, andWestJet from the United States to Ottawa. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,998 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,149 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,377 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Food

7.6

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from USA to Ottawa. 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 into for flights to Ottawa from United States?

    Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly into when you book flights from United States to Ottawa.

  • How long is the flight from USA to Ottawa?

    For as low as C$ 267, Porter Airlines can have you in Ottawa from USA in 3h 30m. Airlines will cover a distance of 2176 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from USA to Ottawa one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 113. Users have also found prices from C$ 133 and C$ 135 on United Airlines and Porter Airlines, respectively.

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

    The most popular route from USA to Ottawa is Newark - Ottawa. You may also consider Washington, D.C. Dulles Intl - Ottawa or Boston Logan Intl - Ottawa.

  • Can I find deals for flights from USA to Ottawa that include hotel bookings?

    Yes. In addition to deals on USA to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Ottawa.

  • Can I find deals for business class flights from USA to Ottawa?

    Yes. Cheapflights offers flight deals from USA to Ottawa 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 USA to Ottawa?

    Currently, April is the cheapest month in which you can book a flight from USA to Ottawa (average of C$ 53). Flying from USA to Ottawa in September is currently the most expensive (average of C$ 177). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for USA to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from USA to Ottawa

Discover the top 3 airlines that operate flights from USA to Ottawa. 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 148AverageC$ 495FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 165AverageC$ 563FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 246AverageC$ 579FlexibilityNo cancel feeOn-time69%
Search United 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 USA to Ottawa?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from USA to Ottawa. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from USA to Ottawa?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from USA to Ottawa for you. Better yet — we are completely free to use.

Can Cheapflights find flights from USA to Ottawa with no change fees?

Yes, we can. To see specific flights from USA to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from USA to Ottawa become cheaper?

Yes! Start tracking prices for USA to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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