YOW

$158 Find Cheap Flights from Washington to Ottawa - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ottawa departing on 9/18. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Washington to Ottawa

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington to Ottawa

Thu, Sep 24 - Thu, Oct 1
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$360WestJet
Thu, Sep 24 - Wed, Sep 30
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$363WestJet
Wed, Sep 16 - Wed, Sep 23
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
4:15 pm - 9:40 amYOW  Ottawa-SEA Seattle/Tacoma Intl
20h 25m1 stop Calgary
$365WestJet
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
Multiple Airlines Logo
8:40 am - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
13h 05m2 stops Toronto Pearson Intl Calgary
$415Multiple Airlines
Wed, Sep 9 - Sat, Sep 12
Multiple Airlines Logo
9:45 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
28h 50m2 stops Las Vegas Harry Reid Intl Calgary
Multiple Airlines Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$422Multiple Airlines
Wed, Sep 9 - Thu, Oct 8
Multiple Airlines Logo
9:45 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
28h 50m2 stops Las Vegas Harry Reid Intl Calgary
Multiple Airlines Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$426Multiple Airlines
Sat, Oct 24 - Sat, Oct 31
Air Canada Logo
5:40 am - 4:23 pmSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 43m1 stop Vancouver Intl
Air Canada Logo
2:00 pm - 8:59 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
9h 59m1 stop Toronto Pearson Intl
$550Air Canada
Fri, Sep 4 - Sat, Sep 12
Air Canada Logo
3:00 pm - 1:09 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 09m1 stop Vancouver Intl
Air Canada Logo
6:05 pm - 10:47 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
7h 42m1 stop Vancouver Intl
$550Air Canada
Tue, Sep 29 - Mon, Oct 5
United Airlines Logo
10:33 pm - 9:11 amPDX  Portland-YOW Ottawa
7h 38m1 stop Newark
United Airlines Logo
5:20 pm - 10:23 pmYOW  Ottawa-PDX Portland
8h 03m1 stop Chicago O'Hare Intl
$630United Airlines
Sat, Oct 17 - Wed, Oct 21
United Airlines Logo
8:30 am - 9:35 pmPDX  Portland-YOW Ottawa
10h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
6:25 am - 3:56 pmYOW  Ottawa-PDX Portland
12h 31m1 stop Chicago O'Hare Intl
$635United Airlines
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Good to know

Low season

January

Cheapest flight

$158
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Seattle to Ottawa

FAQs for booking flights from Washington to Ottawa

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

    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 Washington to Ottawa.

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

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

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

    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 to Ottawa with an airline and back to Washington with another airline.

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

    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 to Ottawa from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Perth
Smiths Falls
Wakefield
Calabogie
Lanark
Ingleside

Everything you need to know for your flight to Ottawa

Information on the airport you'll fly into in Ottawa

Ottawa (YOW)