HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ottawa

$119+ Cheap flights from Washington to Ottawa (YOW)

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
abr. 27 — may. 41
dom. 4/27
dom. 5/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Ottawa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington to Ottawa

Keep the following information in mind while searching for Washington to Ottawa flight deals. Data was last updated abril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Mytrip)

One-way from

$119
(oojo)

Popular in

January

Cheapest in

September

Average price

$551
Provider with most accurate pricing for Seattle/Tacoma Intl-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ottawa flights.
Search Deals
From Washington to Ottawa
Search Deals
One-way flight from Washington to Ottawa
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Washington to Ottawa

Cheapest flights from Washington to Ottawa
Explore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

This Mytrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/67:05 amSEA - YOW
1 stop8h 16mWestJet
vie. 6/136:10 amYOW - SEA
1 stop9h 21mWestJet
Deal found 4/22$263
This Gotogate deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/51:45 pmPDX - YOW
2 stops12h 40mWestJet
mié. 8/206:00 amYOW - PDX
1 stop9h 52mWestJet
Deal found 4/20$275
This Mytrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/67:05 amSEA - YOW
1 stop8h 16mMultiple Airlines
vie. 6/136:00 amYOW - SEA
2 stops9h 58mMultiple Airlines
Deal found 4/22$303
This Mytrip deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/51:45 pmPDX - YOW
2 stops12h 40mMultiple Airlines
jue. 6/127:50 amYOW - PDX
3 stops30h 27mMultiple Airlines
Deal found 4/21$372
This Air Canada deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/255:30 amSEA - YOW
2 stops10h 56mAir Canada
mié. 5/282:35 pmYOW - SEA
1 stop8h 02mAir Canada
Deal found 4/22$444
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/610:15 pmSEA - YOW
2 stops11h 54mUnited Airlines
vie. 6/137:29 pmYOW - SEA
2 stops15h 32mUnited Airlines
Deal found 4/22$474
This Air Canada deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/146:15 amPDX - YOW
1 stop7h 04mAir Canada
vie. 5/169:55 pmYOW - PDX
1 stop14h 35mAir Canada
Deal found 4/21$592

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 2,558,603 searches. Data last updated abril 22, 2025.
Use the filters below to find and compare flights from Washington to Ottawa that are best for you.

Fly from

Washington

Fly to

Ottawa

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

vie. 6/6

7:05 am-6:21 pm

1 stop8h 16m

Ottawa

vie. 6/13

6:10 am-12:31 pm

1 stop9h 21m

$263

PortlandOttawa

PDX - YOW

PDXYOW

Portland

mar. 8/5

1:45 pm-5:25 am

2 stops12h 40m

Ottawa

mié. 8/20

6:00 am-12:52 pm

1 stop9h 52m

$275

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

vie. 6/6

7:05 am-6:21 pm

1 stop8h 16m

Ottawa

vie. 6/13

6:00 am-12:58 pm

2 stops9h 58m

$303

PortlandOttawa

PDX - YOW

PDXYOW

Portland

jue. 6/5

1:45 pm-5:25 am

2 stops12h 40m

Ottawa

jue. 6/12

7:50 am-11:17 am

3 stops30h 27m

$372

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

dom. 5/25

5:30 am-7:26 pm

2 stops10h 56m

Ottawa

mié. 5/28

2:35 pm-7:37 pm

1 stop8h 02m

$444

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

vie. 6/6

10:15 pm-1:09 pm

2 stops11h 54m

Ottawa

vie. 6/13

7:29 pm-8:01 am

2 stops15h 32m

$474

PortlandOttawa

PDX - YOW

PDXYOW

Portland

mié. 5/14

6:15 am-4:19 pm

1 stop7h 04m

Ottawa

vie. 5/16

9:55 pm-9:30 am

1 stop14h 35m

$592

PortlandOttawa

PDX - YOW

PDXYOW

Portland

lun. 8/4

1:45 pm-5:25 am

2 stops12h 40m

$119

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

mié. 5/28

1:50 pm-5:25 am

2 stops12h 35m

$139

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

mar. 6/17

3:39 pm-2:44 pm

2 stops20h 05m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 13 results
1
2

Best time to book a flight from Washington to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington 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 Washington to Ottawa

What is the cheapest month to book a flight from State of Washington to Ottawa?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of $294). Flying from State of Washington to Ottawa in May is currently the most expensive (average of $460). 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 WA to YOW?

Find hourly flight availability from Washington 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 abril 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Ottawa as you normally would.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

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 abril 22, 2025.
Get a feel of what it's like to fly with United Airlines, WestJet and Air Canada from Washington to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,683 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,683 reviews
United Airlines
7.4
Good
8,683 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,813 reviews
United Airlines
7.4
Good
8,683 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,179 reviews
United Airlines
7.4
Good
8,683 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Washington 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 Washington?

    Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Washington. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

  • What are the cheapest airlines to fly from State of Washington to Ottawa one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $119. Users have also found prices from $155 and $200 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from State of Washington to Ottawa?

    Most travelers choose Seattle/Tacoma Intl - Ottawa, Portland - Ottawa or Bellingham - Ottawa when deciding on the best route from State of Washington to Ottawa.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Ottawa?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of $294). Flying from State of Washington to Ottawa in May is currently the most expensive (average of $460). 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

Traveling to a place near Washington?

Book flights to Washington if you plan to visit one of these locations
Gatineau
Brockville
Pembroke
Petawawa

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Pearson Intl flights
Newark to Toronto Island flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pearson Intl flights
Los Angeles to Pearson Intl flights
LaGuardia to Pearson Intl flights
San Francisco to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson Intl flights
Boston to Pearson Intl flights
Dallas/Fort Worth to Pearson Intl flights
Reagan-National to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Hobby to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
San Francisco to Pierre Elliott Trudeau Intl flights
George Bush Intcntl to Pearson Intl flights
Atlanta to Pearson Intl flights
Boston to Toronto Island flights
Boston to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Seattle to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Denver to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Minneapolis to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Toronto Island flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Midway to Toronto Island flights
Raleigh to Pearson Intl flights
Orlando to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pearson Intl flights
O'Hare Intl to Toronto Island flights
Los Angeles to Toronto Island flights
Austin to Pearson Intl flights
San Diego to Pearson Intl flights
Sky Harbor Intl to Pearson Intl flights
Charlotte to Pearson Intl flights
Midway to Pearson Intl flights

Top 3 airlines flying from Washington to Ottawa

Discover the top 3 airlines that operate flights from Washington 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 2,558,603 searches. Data last updated abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$256Average$510FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$282Average$855FlexibilityNo cancel feeOn-time69%
WestJetCheapest$298Average$424FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.