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Cheap flights from Ottawa to Washington from C$ 246

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

Cheap flight deals from Ottawa to Washington

Keep the following information in mind while searching for Ottawa to Washington flight deals. Data was last updated 28 March 2025.

Round-trip from

C$ 347

One-way from

C$ 246

Popular in

December

Cheapest in

March

Average price

C$ 552
WestJet
  • WestJet
  • 28/5-11/6
  • 2 total stops
  • 16h 24m total
  • Ottawa to Washington
Search Deals
9/5
  • 9/5
  • 2 total stops
  • 27h 20m total
  • Ottawa to Washington
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Ottawa to Washington

Cheapest flights from Ottawa to Washington
Explore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Wed 28/57:50 a.m.YOW - SEA
1 stop8h 08mWestJet
Wed 11/67:05 a.m.SEA - YOW
1 stop8h 16mWestJet
Deal found 27/3C$ 347
Wed 20/86:10 a.m.YOW - PDX
2 stops9h 42mWestJet
Wed 27/81:45 p.m.PDX - YOW
1 stop7h 56mWestJet
Deal found 26/3C$ 386
Mon 28/46:10 p.m.YOW - PDX
1 stop26h 55mMultiple Airlines
Wed 30/42:32 p.m.PDX - YOW
1 stop23h 13mMultiple Airlines
Deal found 26/3C$ 409
Fri 16/53:35 p.m.YOW - SEA
1 stop7h 53mMultiple Airlines
Tue 20/57:05 a.m.SEA - YOW
2 stops14h 16mMultiple Airlines
Deal found 27/3C$ 443
Tue 6/56:00 p.m.YOW - SEA
1 stop7h 13mAir Canada
Mon 12/55:35 a.m.SEA - YOW
1 stop7h 44mAir Canada
Deal found 27/3C$ 467
Wed 27/86:30 a.m.YOW - SEA
3 stops19h 06mUnited Airlines
Tue 2/97:05 a.m.SEA - YOW
2 stops13h 38mUnited Airlines
Deal found 27/3C$ 532
Thu 22/57:50 a.m.YOW - PDX
1 stop8h 02mDelta
Wed 28/56:40 a.m.PDX - YOW
2 stops15h 01mDelta
Deal found 26/3C$ 625
Tue 20/56:00 p.m.YOW - PDX
1 stop7h 55mAir Canada
Wed 28/56:15 a.m.PDX - YOW
1 stop7h 04mAir Canada
Deal found 26/3C$ 838
Tue 27/56:40 a.m.YOW - PDX
1 stop7h 56mUnited Airlines
Tue 27/511:59 p.m.PDX - YOW
1 stop11h 05mUnited Airlines
Deal found 26/3C$ 926
Mon 7/410:30 a.m.YOW - PAE
2 stops12h 31mMultiple Airlines
Fri 11/49:45 a.m.PAE - YOW
2 stops11h 55mMultiple Airlines
Deal found 27/3C$ 1,175

Cheapflights Fare Finder

Customize your flight search to find flights from Ottawa to Washington 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 Ottawa to Washington that are best for you.

Fly from

Ottawa

Fly to

Washington

Route

Depart

Return

Price

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 28/5

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

1 stop8h 08m

Seattle/Tacoma Intl

Wed 11/6

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

1 stop8h 16m

C$ 347

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 20/8

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

2 stops9h 42m

Portland

Wed 27/8

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

1 stop7h 56m

C$ 386

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 28/4

6:10 p.m.-6:05 p.m.

1 stop26h 55m

Portland

Wed 30/4

2:32 p.m.-4:45 p.m.

1 stop23h 13m

C$ 409

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 16/5

3:35 p.m.-8:28 p.m.

1 stop7h 53m

Seattle/Tacoma Intl

Tue 20/5

7:05 a.m.-12:21 a.m.

2 stops14h 16m

C$ 443

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 6/5

6:00 p.m.-10:13 p.m.

1 stop7h 13m

Seattle/Tacoma Intl

Mon 12/5

5:35 a.m.-4:19 p.m.

1 stop7h 44m

C$ 467

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 27/8

6:30 a.m.-10:36 p.m.

3 stops19h 06m

Seattle/Tacoma Intl

Tue 2/9

7:05 a.m.-11:43 p.m.

2 stops13h 38m

C$ 532

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Thu 22/5

7:50 a.m.-12:52 p.m.

1 stop8h 02m

Portland

Wed 28/5

6:40 a.m.-12:41 a.m.

2 stops15h 01m

C$ 625

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 20/5

6:00 p.m.-10:55 p.m.

1 stop7h 55m

Portland

Wed 28/5

6:15 a.m.-4:19 p.m.

1 stop7h 04m

C$ 838

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 27/5

6:40 a.m.-11:36 a.m.

1 stop7h 56m

Portland

Tue 27/5

11:59 p.m.-2:04 p.m.

1 stop11h 05m

C$ 926

OttawaEverett

YOW - PAE

YOWPAE

Ottawa

Mon 7/4

10:30 a.m.-8:01 p.m.

2 stops12h 31m

Everett Paine Field

Fri 11/4

9:45 a.m.-12:40 a.m.

2 stops11h 55m

C$ 1,175

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 18 results
1
2

Best time to book a flight from Ottawa to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of C$ 261). Flying from Ottawa to State of Washington in December is currently the most expensive (average of C$ 353). 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 WA?

Find hourly flight availability from Ottawa to Washington. 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.

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

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated 28 March 2025.
Read reviews from past customers who have flown Delta, United Airlines and WestJet from Ottawa to Washington. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
8,986 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Washington. 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 Washington?

    If you book a flight to Washington from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 247. Users have also found prices from C$ 274 and C$ 292 on Delta and United Airlines, respectively.

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

    While some choose either Ottawa - Portland or Ottawa - Everett Paine Field, Ottawa - Seattle/Tacoma Intl is the most popular route from Ottawa to State of Washington.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of C$ 261). Flying from Ottawa to State of Washington in December is currently the most expensive (average of C$ 353). 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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Ottawa to Newark flights

Top 3 airlines flying from Ottawa to Washington

Discover the top 3 airlines that operate flights from Ottawa to Washington. 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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 358AverageC$ 618FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 386AverageC$ 817FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 491AverageC$ 610FlexibilityNo 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 Ottawa to Washington?

Deals for Ottawa to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to Washington, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington from Ottawa today and book when prices fit your budget.

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