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Cheap flights from Washington to Ottawa from C$ 182

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
2 Apr — 9 Apr1
1 adult

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 28 March 2025.

Round-trip from

C$ 443

One-way from

C$ 182

Popular in

January

Cheapest in

September

Average price

C$ 706
WestJet
  • WestJet
  • 25/8-4/9
  • 2 total stops
  • 16h 25m total
  • Washington to Ottawa
Search Deals
11/5
  • 11/5
  • 1 total stop
  • 10h 55m total
  • Washington to Ottawa
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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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 28 March 2025.

Mon 25/87:05 a.m.SEA - YOW
1 stop8h 16mWestJet
Thu 4/97:50 a.m.YOW - SEA
1 stop8h 09mWestJet
Deal found 27/3C$ 443
Tue 8/46:13 p.m.PDX - YOW
1 stop19h 32mMultiple Airlines
Thu 10/42:50 p.m.YOW - PDX
2 stops21h 22mMultiple Airlines
Deal found 26/3C$ 452
Fri 9/57:05 a.m.SEA - YOW
1 stop26h 58mMultiple Airlines
Mon 12/57:50 a.m.YOW - SEA
1 stop8h 08mMultiple Airlines
Deal found 27/3C$ 455
Sat 28/61:45 p.m.PDX - YOW
1 stop7h 56mWestJet
Sat 5/76:10 a.m.YOW - PDX
2 stops9h 42mWestJet
Deal found 27/3C$ 480
Thu 10/46:00 a.m.SEA - YOW
1 stop9h 09mAir Canada
Fri 23/52:35 p.m.YOW - SEA
1 stop8h 02mAir Canada
Deal found 27/3C$ 619
Sun 11/57:15 p.m.SEA - YOW
2 stops11h 43mUnited Airlines
Sun 18/55:15 a.m.YOW - SEA
1 stop8h 36mUnited Airlines
Deal found 27/3C$ 623
Fri 18/411:30 p.m.PDX - YOW
1 stop16h 22mUnited Airlines
Mon 21/47:29 p.m.YOW - PDX
1 stop27h 45mUnited Airlines
Deal found 27/3C$ 1,063
Fri 18/47:30 p.m.PDX - YOW
2 stops12h 04mAir Canada
Mon 21/46:00 p.m.YOW - PDX
2 stops18h 35mAir Canada
Deal found 27/3C$ 1,101
Mon 22/912:40 a.m.SEA - YOW
2 stops14h 40mDelta
Sat 4/106:00 a.m.YOW - SEA
2 stops13h 19mDelta
Deal found 27/3C$ 1,811

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 629,999 searches. Data last updated 28 March 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

Mon 25/8

7:05 a.m.-6:21 p.m.

1 stop8h 16m

Ottawa

Thu 4/9

7:50 a.m.-12:59 p.m.

1 stop8h 09m

C$ 443

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Tue 8/4

6:13 p.m.-4:45 p.m.

1 stop19h 32m

Ottawa

Thu 10/4

2:50 p.m.-9:12 a.m.

2 stops21h 22m

C$ 452

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 9/5

7:05 a.m.-1:03 p.m.

1 stop26h 58m

Ottawa

Mon 12/5

7:50 a.m.-12:58 p.m.

1 stop8h 08m

C$ 455

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 28/6

1:45 p.m.-12:41 a.m.

1 stop7h 56m

Ottawa

Sat 5/7

6:10 a.m.-12:52 p.m.

2 stops9h 42m

C$ 480

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 10/4

6:00 a.m.-6:09 p.m.

1 stop9h 09m

Ottawa

Fri 23/5

2:35 p.m.-7:37 p.m.

1 stop8h 02m

C$ 619

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 11/5

7:15 p.m.-9:58 a.m.

2 stops11h 43m

Ottawa

Sun 18/5

5:15 a.m.-10:51 a.m.

1 stop8h 36m

C$ 623

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 18/4

11:30 p.m.-6:52 p.m.

1 stop16h 22m

Ottawa

Mon 21/4

7:29 p.m.-8:14 p.m.

1 stop27h 45m

C$ 1,063

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 18/4

7:30 p.m.-10:34 a.m.

2 stops12h 04m

Ottawa

Mon 21/4

6:00 p.m.-9:35 a.m.

2 stops18h 35m

C$ 1,101

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 22/9

12:40 a.m.-6:20 p.m.

2 stops14h 40m

Ottawa

Sat 4/10

6:00 a.m.-4:19 p.m.

2 stops13h 19m

C$ 1,811

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 11/5

6:00 a.m.-7:55 p.m.

1 stop10h 55m

C$ 182

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 16 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, October is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of C$ 224). Flying from State of Washington to Ottawa in December is currently the most expensive (average of C$ 326). 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 28 March 2025.

When flying from State of Washington to Ottawa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 28 March 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and WestJet from Washington to Ottawa to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
8,986 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Ottawa (YOW) is the airport you will fly into if you book a flight from Washington to Ottawa. It is only a 10.6 km journey from Ottawa (YOW) to Ottawa’s city centre.

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

    C$ 184 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from C$ 286 and C$ 547, respectively.

  • 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, October is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of C$ 224). Flying from State of Washington to Ottawa in December is currently the most expensive (average of C$ 326). 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 Washington?

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

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See prices for flight routes from nearby airports that may be better suited for you.
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Yes, Cheapflights offers price alerts on Washington to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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