C$ 236 Find Cheap Flights from Ottawa to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Washington departing on 17/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Washington, as well as popular online travel agencies
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Best Washington Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seattle
Seattle1 stopC$ 348

Good to know

Low season

March

High season

August

Cheapest flight

C$ 236
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Ottawa to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Ottawa to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ottawa to Washington is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ottawa to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ottawa to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Washington

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, February and March. The cheapest month to fly from Ottawa is January.
  • Morning departure is around 10% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 3 airlines serving from Ottawa to Washington

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8975 reviews
7.7Boarding
7.1Entertainment
6.7Food
8.1Crew
7.3Comfort
Airline reviews

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

8.0 ExcellentStephen, Jan 2025ORD - SEA
Read more United Airlines reviews

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Not as good as expected Air Can needs to improve totally rated on internet as worst

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Everything was good. Flight was on time, luggage pickup was quick. The staff were great. Could not ask for anything more.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

They needed people to check a bag, they did check my bag and I had to wait 10 minutes after the flight to get it it wasn’t too bad

HORRIBLE WITH THEIR WEBSITE!!! WORST WEBSITE IN THE WHOLE AIRLINE INDUSTRY

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

Very good over all , would have been nice to have entertainment on the flight

Absolutely the worst airline I have ever taken. They lost my baggage and told me my bag tags had been cancelled. When my bags arrived days later I had to pick them up at 3:15 am. My return flight was delayed another 6 hours and they broke my bag. Westjet does nothing to try and make it a better customer experience and all the customers services representatives I spoke with were useless and incompetent. Never flying westjet again.

Easy self checkin and baggage drop. No in seat entertainment, but wifi and app worked well

it's all good nothing you can do make better 😌

Single flights to Cancun purchased through third-party, initially had issues printing luggage labels with the lady at the airport Pearson… Was super friendly and assisted quickly despite being very busy

The flight was on time and shorter time arrival than planned. I was an ultra basic passenger and understood one personal item on the plane. The announcements of one personal item and zone 9 boarding certainly felt like we were separated from the rest. Actually zone 9 passengers should be boarded second; we are not blocking aisles and can be seated much faster and deboarded faster too.

Still sitting in a hotel when I'm due for work

Delays happen but communication and care were very low on what ended up being a long day.

Never been on a long haul flight that didn't have on flight entertainment. I hope the way back is better !

Very easy boarding. The on board snacks were not good.

Delay after delay.......they are awful Delayed because of cold wx really!!!!! We live in Canada

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

So we didn't actually go. We were hoping to go for the Inauguration of the first female president. When That Guy got elected, we bailed. Unfortunately, we got basically none of our money back, despite having travel insurance. Would not fly with Air Canada again unless I had to.

flight was delayed, there was open communication about the delay the delay pushed way past the posted delay time and

This was my first time flying on Air Canada and the experience was good and pleasant enough, great crew members and the price I paid was amazing,

This was my first time and the experience was good and pleasant enough, great crew members and the price I paid was amazing,

I was overcharged either by United or sister airline Air Canada. It's exhausting dealing with companies nowadays that irresponsibly abuse access to credit/debit cards.

Air Canada is not only the worst airline in the business but the worst business in history.

Air Canada is the worst but the only option for my route

I overpaid for the trip. They would not consider giving me any compensation or a credit.

Book cheap flights from Ottawa to Washington

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Ottawa to Washington found on KAYAK in the last 72 hours.
26/3Wed
1 stopWestJet
11h 06mYOW-SEA
27/3Thu
2 stopsWestJet
10h 14mSEA-YOW
C$ 348
3/4Thu
1 stopWestJet
11h 06mYOW-SEA
12/4Sat
2 stopsWestJet
10h 14mSEA-YOW
C$ 400
2/3Sun
2 stops
24h 16mYOW-SEA
10/3Mon
1 stop
22h 33mSEA-YOW
C$ 410
2/3Sun
2 stops
24h 16mYOW-SEA
12/3Wed
1 stop
19h 32mSEA-YOW
C$ 416
1/2Sat
1 stopAir Canada
10h 20mYOW-SEA
7/2Fri
1 stopAir Canada
7h 15mSEA-YOW
C$ 617
13/2Thu
1 stopUnited Airlines
8h 42mYOW-SEA
17/2Mon
1 stopUnited Airlines
7h 32mSEA-YOW
C$ 623
2/3Sun
1 stopUnited Airlines
10h 20mYOW-SEA
29/4Tue
1 stopUnited Airlines
8h 07mSEA-YOW
C$ 625
20/5Tue
1 stopAir Canada
8h 05mYOW-PDX
28/5Wed
1 stopAir Canada
9h 43mPDX-YOW
C$ 697
1/3Sat
1 stopDelta
11h 19mYOW-SEA
28/4Mon
1 stopDelta
7h 36mSEA-YOW
C$ 987
1/3Sat
1 stopDelta
11h 19mYOW-SEA
28/4Mon
2 stopsDelta
15h 17mSEA-YOW
C$ 1,143

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ottawa to Washington found on KAYAK in the last 72 hours.
17/2Mon
1 stop
22h 26mYOW-SEA
C$ 236
19/2Wed
1 stop
18h 25mYOW-SEA
C$ 237
19/2Wed
2 stopsWestJet
21h 11mYOW-SEA
C$ 252
19/2Wed
1 stopWestJet
23h 36mYOW-SEA
C$ 256
6/3Thu
2 stopsWestJet
40h 50mYOW-SEA
C$ 278
18/2Tue
2 stopsWestJet
21h 11mYOW-SEA
C$ 279
18/2Tue
1 stopWestJet
23h 36mYOW-SEA
C$ 284
2/2Sun
1 stopAir Canada
10h 20mYOW-SEA
C$ 348
2/2Sun
2 stopsUnited Airlines
15h 39mYOW-SEA
C$ 350
2/2Sun
3 stopsUnited Airlines
21h 20mYOW-SEA
C$ 358

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Last minute flights from Ottawa to Washington

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ottawa to Washington that are departing in the next 10 days.
23/1Thu
multi-stop
11h 06mYOW-SEA
30/1Thu
multi-stop
25h 35mSEA-YOW
C$ 899
25/1Sat
multi-stopWestJet
14h 00mYOW-SEA
29/1Wed
multi-stopWestJet
12h 20mSEA-YOW
C$ 917
25/1Sat
multi-stopWestJet
11h 23mYOW-SEA
29/1Wed
multi-stopWestJet
12h 20mSEA-YOW
C$ 924
23/1Thu
multi-stop
45h 28mYOW-SEA
30/1Thu
multi-stop
25h 35mSEA-YOW
C$ 935
24/1Fri
multi-stopUnited Airlines
8h 53mYOW-SEA
29/1Wed
multi-stopUnited Airlines
13h 24mSEA-YOW
C$ 954
23/1Thu
multi-stopWestJet
13h 40mYOW-SEA
29/1Wed
multi-stopWestJet
14h 17mSEA-YOW
C$ 970
23/1Thu
multi-stopWestJet
11h 06mYOW-SEA
29/1Wed
multi-stopWestJet
12h 20mSEA-YOW
C$ 982
23/1Thu
multi-stopWestJet
11h 06mYOW-SEA
29/1Wed
multi-stopWestJet
12h 20mSEA-YOW
C$ 999
23/1Thu
multi-stopUnited Airlines
12h 25mYOW-SEA
29/1Wed
multi-stopUnited Airlines
14h 01mSEA-YOW
C$ 1,019
23/1Thu
multi-stopUnited Airlines
10h 20mYOW-SEA
29/1Wed
multi-stopUnited Airlines
11h 24mSEA-YOW
C$ 1,045

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Everything you need to know for your flight from Ottawa to Washington

Information on your arrival and departure airports

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