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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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YOW
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 10 August 2026.

Thu 17/92:35 p.m. -
Nonstop1h 40m
Mon 21/92:10 p.m. -
Nonstop1h 35m
Deal found 7/8C$ 263
Tue 1/92:35 p.m. -
Nonstop1h 40m
Tue 8/99:05 a.m. -
Nonstop1h 35m
Deal found 7/8C$ 266
Thu 10/96:00 a.m. -
1 stop5h 30m
Mon 14/92:10 p.m. -
Nonstop1h 35m
Deal found 6/8C$ 269
Thu 3/910:40 a.m. -
Nonstop1h 40m
Tue 8/92:10 p.m. -
Nonstop1h 35m
Deal found 8/8C$ 270
Sat 19/92:35 p.m. -
Nonstop1h 40m
Sat 26/92:10 p.m. -
Nonstop1h 35m
Deal found 5/8C$ 272
Thu 17/92:35 p.m. -
Nonstop1h 40m
Wed 30/92:10 p.m. -
Nonstop1h 35m
Deal found 6/8C$ 273
Thu 10/92:35 p.m. -
Nonstop1h 40m
Mon 14/92:10 p.m. -
Nonstop1h 35m
Deal found 6/8C$ 275
Thu 17/92:35 p.m. -
Nonstop1h 40m
Mon 21/96:00 a.m. -
1 stop3h 30m
Deal found 7/8C$ 276
Wed 14/1011:20 a.m. -
1 stop6h 32m
Thu 22/102:10 p.m. -
Nonstop1h 35m
Deal found 5/8C$ 277
Wed 14/108:00 a.m. -
1 stop3h 27m
Sat 24/109:15 a.m. -
1 stop3h 35m
Deal found 5/8C$ 279
Fri 16/108:00 a.m. -
1 stop3h 27m
Tue 20/108:00 a.m. -
1 stop4h 50m
Deal found 5/8C$ 280
Thu 10/92:35 p.m. -
Nonstop1h 40m
Tue 15/92:10 p.m. -
Nonstop1h 35m
Deal found 5/8C$ 282

Find flight deals from USA to Ottawa

Keep the following information in mind while searching for USA to Ottawa flight deals. Data was last updated 10 August 2026.

Round-trip from

C$ 263

One-way from

C$ 99

Popular in

July

Cheapest in

April

Average price

C$ 631

Good round-trip deal

C$ 216 or less

Good one-way deal

C$ 194 or less
Porter Airlines
  • Porter Airlines
  • 17/9-21/9
  • Nonstop
  • 3h 15m total
  • USA to Ottawa
Search Deals
Porter Airlines
  • Porter Airlines
  • 9/9
  • Nonstop
  • 1h 40m total
  • USA to Ottawa
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 41 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 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 10 August 2026.
Use the filters below to find and compare flights from the United States to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Fri 28/8

2:45 p.m.-7:52 p.m.

1 stop5h 07m

Ottawa

Sun 30/8

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

Nonstop1h 30m

C$ 328

NewarkOttawa

EWR Newark - YOW Ottawa

EWRYOW

Newark

Sat 17/10

8:00 a.m.-12:52 p.m.

1 stop4h 52m

Ottawa

Mon 19/10

5:55 p.m.-10:00 p.m.

1 stop4h 05m

C$ 347

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Thu 17/9

4:30 p.m.-9:42 p.m.

1 stop5h 12m

Ottawa

Mon 21/9

3:30 p.m.-8:55 p.m.

1 stop5h 25m

C$ 351

NewarkOttawa

EWR Newark - YOW Ottawa

EWRYOW

Newark

Fri 16/10

2:35 p.m.-4:20 p.m.

Nonstop1h 45m

Ottawa

Tue 20/10

5:55 p.m.-10:00 p.m.

1 stop4h 05m

C$ 378

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Sat 5/9

5:45 a.m.-2:17 p.m.

1 stop8h 32m

Ottawa

Sat 5/9

5:20 p.m.-11:34 p.m.

1 stop6h 14m

C$ 382

NewarkOttawa

EWR Newark - YOW Ottawa

EWRYOW

Newark

Sat 17/10

8:00 a.m.-12:52 p.m.

1 stop4h 52m

Ottawa

Wed 21/10

8:00 a.m.-4:55 p.m.

2 stops8h 55m

C$ 389
Quickest round-trip

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Sat 29/8

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

Nonstop1h 28m

Ottawa

Wed 2/9

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

Nonstop1h 30m

C$ 392

NewarkOttawa

EWR Newark - YOW Ottawa

EWRYOW

Newark

Tue 29/9

4:25 p.m.-8:02 p.m.

1 stop3h 37m

Ottawa

Mon 5/10

5:55 p.m.-10:00 p.m.

1 stop4h 05m

C$ 393

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Fri 28/8

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

Nonstop1h 28m

Ottawa

Mon 31/8

9:55 a.m.-2:02 p.m.

1 stop4h 07m

C$ 429

New YorkOttawa

LGA New York LaGuardia - YOW Ottawa

LGAYOW

New York LaGuardia

Sat 24/10

10:00 a.m.-4:32 p.m.

1 stop6h 32m

Ottawa

Sun 25/10

6:40 a.m.-12:15 p.m.

1 stop5h 35m

C$ 431

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from USA to Ottawa (average of C$ 535). Flying from USA to Ottawa in July is currently the most expensive (average of C$ 684). 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 10 August 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from USA to Ottawa by exploring options for tickets in the morning.

How often are flights from the United States to Ottawa delayed?

About 20% of weekly flights between United States and Ottawa have experienced delays in the past year, with the average delay time being 144 minutes.

What is the most punctual flight time for the United States to Ottawa 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?

Friday 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 the United States to Ottawa flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 17% of flights being delayed.

How far ahead should I book a flight from USA to Ottawa?

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from USA to Ottawa. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 31 August 2025.

Travelers seeking maximum savings on their USA to Ottawa flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday evenings 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 10 August 2026.
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
453 reviews
Check prices

Overall

8.0

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
453 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
United Airlines
7.4
Good
10,098 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,430 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,458 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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$ 347, Porter Airlines can have you in Ottawa from USA in 4h 52m. Airlines will cover a distance of 528 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 Porter Airlines. According to our data, you can fly for as low as C$ 87. Users have also found prices from C$ 91 and C$ 95 on WestJet and United 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 Chicago O'Hare 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, February is the cheapest month in which you can book a flight from USA to Ottawa (average of C$ 535). Flying from USA to Ottawa in July is currently the most expensive (average of C$ 684). 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
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

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 4 airlines flying from USA to Ottawa

Discover the top 4 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 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 198AverageC$ 470FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 227AverageC$ 485FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 424AverageC$ 831FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 458AverageC$ 745FlexibilityNo cancel feeOn-time60%
Search WestJet 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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