$223+ Cheap flights from Seattle (SEA) to Ottawa (YOW)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Ottawa with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Ottawa
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Cheapest flights from Seattle to OttawaExplore the most affordable flight options available from Seattle to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Seattle to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:18 pm -
1 stop14h 14m
Wed 11/256:10 am -
1 stop10h 30m
Deal found 10/20![Multiple Airlines logo]()
$506
This Rumbo deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:30 pm -
2 stops30h 10m
Fri 12/186:10 am -
1 stop10h 30m
Deal found 10/22![WestJet logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:40 pm -
1 stop12h 52m
Fri 12/113:15 pm -
1 stop22h 11m
Deal found 10/20![Multiple Airlines logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:48 pm -
1 stop16h 26m
Fri 11/276:10 am -
1 stop10h 30m
Deal found 10/21![Multiple Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop10h 17m
Wed 12/163:15 pm -
1 stop9h 44m
Deal found 10/24![Multiple Airlines logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:43 pm -
2 stops16h 49m
Sun 11/296:55 pm -
1 stop17h 02m
Deal found 10/20![Multiple Airlines logo]()
$685
Best flights from Seattle to OttawaDiscover carefully curated flight deals from Seattle to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Seattle to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This FlightHub deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/202:30 pm -
1 stop21h 00m
Sat 1/235:30 am -
2 stops35h 10m
Deal found 10/22![WestJet logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2010:40 pm -
1 stop12h 50m
Sat 1/2310:35 am -
1 stop12h 28m
Deal found 10/22![Multiple Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/108:00 am -
1 stop8h 30m
Fri 3/126:00 am -
1 stop18h 05m
Deal found 10/21![United Airlines logo]()
$619
This Air Canada deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/710:10 am -
1 stop11h 44m
Sat 3/135:40 pm -
1 stop7h 15m
Deal found 10/21![Air Canada logo]()
$623
This Rumbo deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:30 pm -
1 stop21h 00m
Fri 12/186:10 am -
1 stop10h 30m
Deal found 10/22![WestJet logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop10h 17m
Wed 12/163:15 pm -
1 stop9h 44m
Deal found 10/24![Multiple Airlines logo]()
$591
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/108:00 am -
1 stop8h 30m
Sat 3/136:00 am -
1 stop18h 05m
Deal found 10/21![United Airlines logo]()
$619
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/82:30 pm -
2 stops30h 10m
Fri 3/126:10 am -
1 stop10h 30m
Deal found 10/21![WestJet logo]()
$612
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/92:42 pm -
2 stops20h 36m
Fri 3/126:15 am -
1 stop15h 48m
Deal found 10/21![United Airlines logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:43 pm -
2 stops16h 49m
Sun 11/296:55 pm -
1 stop17h 02m
Deal found 10/20![Multiple Airlines logo]()
$685
Last-minute flights from Seattle to OttawaDiscover last-minute flight deals from Seattle to Ottawa. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Ottawa. Data last updated October 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:18 pm -
1 stop14h 14m
Sun 11/1510:30 am -
1 stop26h 46m
Deal found 10/25![Multiple Airlines logo]()
$710
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:18 pm -
1 stop14h 14m
Wed 11/256:10 am -
1 stop10h 30m
Deal found 10/20![Multiple Airlines logo]()
$506
This oojo deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:30 pm -
2 stops30h 10m
Wed 11/255:30 am -
2 stops35h 10m
Deal found 10/20![WestJet logo]()
$716
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:48 pm -
1 stop16h 26m
Fri 11/276:10 am -
1 stop10h 30m
Deal found 10/21![Multiple Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:43 pm -
2 stops16h 49m
Sun 11/296:55 pm -
1 stop17h 02m
Deal found 10/20![Multiple Airlines logo]()
$685
One-way flights from Seattle to OttawaSearch for one-way flight options from Seattle to Ottawa. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Seattle to Ottawa. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Trip.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:48 pm -
1 stop16h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$223
This Trip.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/282:20 pm -
3 stops24h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/309:53 pm -
3 stops42h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$290
This Gotogate deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:30 pm -
1 stop21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![WestJet logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:30 pm -
3 stops24h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$300
Find flight deals from Seattle to Ottawa
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $497 (FlightHub) |
One-way from | $223 (Trip.com) |
Popular in | August |
Cheapest in | April |
Average price | $586 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Ottawa 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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Seattle to Ottawa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Fri 11/27
5:48 pm-1:14 pm
1 stop16h 26m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$224
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Sat 12/5
7:57 pm-2:32 pm
2 stops15h 35m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$284
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Wed 12/9
2:30 pm-2:30 pm
1 stop21h 00m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$293
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Tue 12/8
7:30 pm-2:09 pm
2 stops15h 39m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$310
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Wed 12/9
10:10 am-12:26 am
2 stops11h 16m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$317
Quickest round-trip
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Fri 11/27
10:56 pm-1:10 pm
2 stops11h 14m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$319
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Wed 1/20
2:30 pm-2:30 pm
1 stop21h 00m
Ottawa
Sat 1/23
5:30 am-1:40 pm
2 stops35h 10m
$508
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Wed 1/20
10:40 pm-2:30 pm
1 stop12h 50m
Ottawa
Sat 1/23
10:35 am-8:03 pm
1 stop12h 28m
$551
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Thu 12/10
2:30 pm-2:30 pm
1 stop21h 00m
Ottawa
Fri 12/18
6:10 am-1:40 pm
1 stop10h 30m
$568
SeattleOttawa
SEA Seattle/Tacoma Intl - YOW Ottawa
SEAYOW
Seattle/Tacoma Intl
Wed 12/9
6:00 am-7:17 pm
1 stop10h 17m
Ottawa
Wed 12/16
3:15 pm-9:59 pm
1 stop9h 44m
$591
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Seattle to Ottawa
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Ottawa in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Ottawa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Ottawa
Have a flexible travel schedule? Discover the best time to fly to Ottawa from Seattle with our price prediction graph.
SEA-YOW
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 Seattle to Ottawa
Reviews of airlines servicing Ottawa
Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated October 25, 2026.
Read reviews from past customers who have flown United Airlines,WestJet, andAir Canada from Seattle to Ottawa. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Entertainment
7.1
Crew
8.1
Overall
7.3
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Food
6.7
Entertainment
7.1
Crew
8.1
Overall
7.3
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Food
6.7
Entertainment
7.1
Crew
8.1
Overall
7.3
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Food
6.7
Entertainment
7.1
Crew
8.1
Overall
7.3
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Related info for your journey
Find useful and relevant information for your journey from Seattle to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsGatineau
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Find flights from Seattle to Ottawa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Ottawa flights
Browse other Seattle and Ottawa flight options. Last updated on October 25, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Other flights to Ottawa
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Seattle to Ottawa
Discover the top 3 airlines that operate flights from Seattle to Ottawa. 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$266 | Average$426 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$307 | Average$622 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$312 | Average$619 | FlexibilityNo cancel fee | On-time69% |