C$ 257 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 20/3. 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
Seattle2 stopsC$ 464

Good to know

Low season

February

High season

August

Cheapest flight

C$ 257
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 12% 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 March, April and May. The cheapest month to fly from Ottawa is October.
  • Morning departure is around 4% more expensive 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 8765 reviews
6.7Food
8.1Crew
7.1Entertainment
7.7Boarding
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

Flight cancelled and Kayak switched our return flight to a red eye. Ridiculous.

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

Lost my luggage. Filed a report and there is no response. Received a phone call from another airline that said they had the bag and they did not know what to do with it

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

Very old planes. Seats were not comfortable. Air was not on during the flight leading to incredibly stuffy conditions.

It was so bad experience they wanted just charged passengers for any reason.

My flight was cancelled and I was left to figure out where to find a hotel, something to eat and how to get a new flight at 11:30pm. Wasted a day. Thanks, Air Canada!

flight was delayed 6 hours for weather, then cancelled because of the crash in toronto, but none of the links to cancel or rebook my flights are working

They kept changing the gate (6 times in 30 minutes) and then left us on the plane for 4 hours before departure. Likely was the storm, which is understandable, but the lack of communication and the e constant running between gates at opposite ends of the airport really threw me and my friend for a loop.

Legitimately everything about this flight was awful, was also so delayed I never want to use air Canada again

Terrible all around. Flight was late and airplane was very uncomfortable. The crew were unhelpful and hid in the back. Did zero work. No entertainment.

The pork noodles were disgusting. The tuna sandwich had hardly any tuna and the bread was stale. A salad would have been better. An apple or a muffin.

I like the free beer and wine but not the delays to the departure time.

Never again flying economy on Rouge!!! Literally like sardines!!! Will try to change to better seats 3 seat arrangement only so so if traveling with family. Who wants to squished to stranger!!😖 Can’t say enough bad about this!!!

I booked and paid extra for exit door seats also pre paid for my luggage air Canada changed plains and I never got what I paid for and they made me pay for luggage again they also did this to my wife. They are the most unorganized company I have ever dealt with. I am sure I will never see the extra money I paid for the seats or the recharge for the luggage. They are subsidized by the taxpayers and don’t give a dam just a horrible way to do business

Overall the experience was excellent. Plane was clean but more importantly quiet. Recently, I’ve noticed that Airbus planes seem quieter than their Boeing counterparts. I definitely prefer flying in an Airbus plane.

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.
20/3Thu
2 stops
20h 53mYOW-SEA
27/3Thu
1 stop
27h 57mSEA-YOW
C$ 464
8/5Thu
1 stopAir Canada
7h 13mYOW-SEA
13/5Tue
1 stopAir Canada
9h 57mSEA-YOW
C$ 523
20/3Thu
1 stopAir Canada
10h 20mYOW-SEA
27/3Thu
1 stopAir Canada
7h 05mSEA-YOW
C$ 533
11/4Fri
2 stops
11h 06mYOW-SEA
14/4Mon
2 stops
10h 14mSEA-YOW
C$ 582
11/4Fri
2 stops
19h 59mYOW-SEA
14/4Mon
3 stops
23h 20mSEA-YOW
C$ 587
11/4Fri
3 stops
26h 30mYOW-SEA
14/4Mon
3 stops
23h 20mSEA-YOW
C$ 597
8/5Thu
1 stopUnited Airlines
8h 17mYOW-SEA
13/5Tue
2 stopsUnited Airlines
19h 39mSEA-YOW
C$ 622
1/8Fri
1 stopWestJet
7h 53mYOW-SEA
8/8Fri
1 stopWestJet
8h 16mSEA-YOW
C$ 635
17/7Thu
1 stopWestJet
9h 58mYOW-SEA
26/7Sat
1 stopWestJet
8h 16mSEA-YOW
C$ 651
20/5Tue
2 stopsUnited Airlines
13h 58mYOW-PDX
28/5Wed
2 stopsUnited Airlines
18h 25mPDX-YOW
C$ 712

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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.
20/3Thu
2 stops
20h 58mYOW-SEA
C$ 257
4/4Fri
2 stops
20h 53mYOW-SEA
C$ 268
20/3Thu
3 stops
26h 18mYOW-SEA
C$ 276
5/6Thu
2 stopsWestJet
10h 03mYOW-SEA
C$ 291
4/4Fri
1 stopAir Canada
7h 03mYOW-SEA
C$ 295
4/4Fri
3 stops
31h 19mYOW-SEA
C$ 300
10/4Thu
1 stopAir Canada
8h 26mYOW-SEA
C$ 304
10/4Thu
2 stopsWestJet
19h 46mYOW-SEA
C$ 315
15/3Sat
2 stopsUnited Airlines
11h 50mYOW-PDX
C$ 389
15/3Sat
3 stopsUnited Airlines
21h 50mYOW-PDX
C$ 605

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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.
25/2Tue
multi-stop
21h 31mYOW-PDX
2/3Sun
multi-stop
16h 27mPDX-YOW
C$ 526
25/2Tue
multi-stop
16h 11mYOW-PDX
2/3Sun
multi-stop
32h 49mPDX-YOW
C$ 675
21/2Fri
multi-stopWestJet
23h 49mYOW-SEA
20/4Sun
multi-stopWestJet
10h 14mSEA-YOW
C$ 676
21/2Fri
multi-stopWestJet
17h 50mYOW-SEA
20/4Sun
multi-stopWestJet
19h 57mSEA-YOW
C$ 692
21/2Fri
multi-stopWestJet
23h 49mYOW-SEA
20/4Sun
multi-stopWestJet
22h 33mSEA-YOW
C$ 730
25/2Tue
multi-stopAir Canada
8h 34mYOW-PDX
2/3Sun
multi-stopAir Canada
7h 33mPDX-YOW
C$ 736
22/2Sat
multi-stopUnited Airlines
9h 58mYOW-SEA
19/4Sat
multi-stopUnited Airlines
7h 06mSEA-YOW
C$ 832
21/2Fri
multi-stopUnited Airlines
15h 25mYOW-SEA
20/4Sun
multi-stopUnited Airlines
7h 06mSEA-YOW
C$ 898
22/2Sat
multi-stopAir Canada
10h 20mYOW-SEA
20/4Sun
multi-stopAir Canada
16h 21mSEA-YOW
C$ 918
22/2Sat
multi-stopDelta
17h 00mYOW-SEA
21/4Mon
multi-stopDelta
14h 49mSEA-YOW
C$ 1,743

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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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