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Cheap flights from Ottawa to Washington from C$ 211

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
23 Apr — 30 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 18 April 2025.

Round-trip from

C$ 336

One-way from

C$ 211

Popular in

December

Cheapest in

March

Average price

C$ 623
WestJet
  • WestJet
  • 31/5-7/6
  • 3 total stops
  • 17h 51m total
  • Ottawa to Washington
Search Deals
WestJet
  • WestJet
  • 7/5
  • 1 total stop
  • 8h 08m total
  • Ottawa to Washington
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 18 April 2025.

Sat 31/56:10 a.m.YOW - PDX
2 stops9h 55mWestJet
Sat 7/61:45 p.m.PDX - YOW
1 stop7h 56mWestJet
Deal found 15/4C$ 336
Sat 31/56:10 a.m.YOW - SEA
2 stops9h 48mWestJet
Sat 7/67:05 a.m.SEA - YOW
1 stop8h 16mWestJet
Deal found 15/4C$ 352
Sat 31/56:00 p.m.YOW - SEA
1 stop7h 13mAir Canada
Sat 7/67:20 a.m.SEA - YOW
1 stop9h 57mAir Canada
Deal found 15/4C$ 373
Wed 23/46:10 p.m.YOW - PDX
1 stop18h 02mMultiple Airlines
Wed 30/47:01 p.m.PDX - YOW
1 stop18h 44mMultiple Airlines
Deal found 16/4C$ 421
Thu 1/55:15 a.m.YOW - SEA
1 stop8h 30mMultiple Airlines
Tue 6/55:30 a.m.SEA - YOW
2 stops10h 56mMultiple Airlines
Deal found 16/4C$ 452
Thu 26/65:15 a.m.YOW - SEA
1 stop8h 36mUnited Airlines
Sat 28/612:20 a.m.SEA - YOW
1 stop10h 44mUnited Airlines
Deal found 17/4C$ 495
Thu 23/106:00 p.m.YOW - PDX
1 stop7h 56mAir Canada
Sun 26/103:25 p.m.PDX - YOW
1 stop10h 32mAir Canada
Deal found 17/4C$ 531
Thu 23/106:30 a.m.YOW - PDX
3 stops19h 07mUnited Airlines
Sun 26/105:15 a.m.PDX - YOW
2 stops13h 02mUnited Airlines
Deal found 17/4C$ 1,166

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 18 April 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

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 31/5

6:10 a.m.-1:05 p.m.

2 stops9h 55m

Portland

Sat 7/6

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

1 stop7h 56m

C$ 336

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 31/5

6:10 a.m.-12:58 p.m.

2 stops9h 48m

Seattle/Tacoma Intl

Sat 7/6

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

1 stop8h 16m

C$ 352

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 31/5

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

1 stop7h 13m

Seattle/Tacoma Intl

Sat 7/6

7:20 a.m.-8:17 p.m.

1 stop9h 57m

C$ 373

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 23/4

6:10 p.m.-9:12 a.m.

1 stop18h 02m

Portland

Wed 30/4

7:01 p.m.-4:45 p.m.

1 stop18h 44m

C$ 421

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 1/5

5:15 a.m.-10:45 a.m.

1 stop8h 30m

Seattle/Tacoma Intl

Tue 6/5

5:30 a.m.-7:26 p.m.

2 stops10h 56m

C$ 452

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 26/6

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

1 stop8h 36m

Seattle/Tacoma Intl

Sat 28/6

12:20 a.m.-2:04 p.m.

1 stop10h 44m

C$ 495

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 20/5

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

1 stop7h 55m

Portland

Wed 28/5

7:41 p.m.-5:29 p.m.

2 stops18h 48m

C$ 695

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 7/5

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

1 stop8h 08m

C$ 211

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 7/5

6:00 a.m.-12:10 a.m.

2 stops21h 10m

C$ 222

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 6/5

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

1 stop7h 13m

C$ 227

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

Showing 1-10 of 15 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 18 April 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 18 April 2025.
Read reviews from past customers who have flown United Airlines, WestJet and Air Canada 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.
United Airlines
7.4
Good
8,667 reviews
Check prices

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,809 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.0
Good
9,142 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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$ 211. Users have also found prices from C$ 227 and C$ 288 on Air Canada 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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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 18 April 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 347AverageC$ 576FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 375AverageC$ 786FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 476AverageC$ 592FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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