Find flights
When to book
FAQs

Cheap flights from Seattle to Ottawa from C$ 258

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
12 Jul — 19 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Ottawa
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 12 June 2026.

Wed 15/77:00 a.m.
SEA
-
YOW
1 stop7h 15m
WestJet
Thu 27/81:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 8/6C$ 589
Tue 7/77:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Tue 14/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 8/6C$ 591
Thu 16/77:00 a.m.
SEA
-
YOW
1 stop9h 20m
WestJet
Thu 23/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 11/6C$ 608
Sat 18/77:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Mon 27/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 10/6C$ 616
Mon 20/77:00 a.m.
SEA
-
YOW
1 stop7h 15m
WestJet
Mon 27/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 10/6C$ 617
Fri 4/97:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Mon 7/91:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 10/6C$ 627
Thu 9/77:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Thu 16/74:15 p.m.
YOW
-
SEA
1 stop20h 25m
WestJet
Deal found 8/6C$ 631
Tue 21/77:00 a.m.
SEA
-
YOW
1 stop7h 15m
WestJet
Thu 23/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
WestJet
Deal found 11/6C$ 636
Thu 16/710:30 a.m.
SEA
-
YOW
2 stops30h 17m
Multiple Airlines
Thu 23/71:20 p.m.
YOW
-
SEA
1 stop8h 25m
Multiple Airlines
Deal found 11/6C$ 643

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 12 June 2026.

Round-trip from

C$ 589

One-way from

C$ 258

Popular in

June

Cheapest in

April

Average price

C$ 1,067
WestJet
  • WestJet
  • 15/7-27/8
  • 2 total stops
  • 15h 40m total
  • Seattle to Ottawa
Search Deals
WestJet
  • WestJet
  • 14/7
  • 1 total stop
  • 9h 20m total
  • Seattle to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 629,999 searches. Data last updated 12 June 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

Price

Cheapest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 30/8

7:00 a.m.-5:15 p.m.

1 stop7h 15m

Ottawa

Sat 5/9

1:20 p.m.-9:00 p.m.

1 stop10h 40m

C$ 631

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 18/8

10:30 a.m.-12:20 a.m.

2 stops10h 50m

Ottawa

Fri 21/8

4:15 p.m.-6:45 p.m.

1 stop29h 30m

C$ 650

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 4/9

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Mon 7/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

C$ 665

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 15/9

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Sun 20/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

C$ 665

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 24/6

10:30 a.m.-12:20 a.m.

2 stops10h 50m

Ottawa

Tue 29/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

C$ 726

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 7/7

7:00 a.m.-12:20 a.m.

2 stops14h 20m

Ottawa

Tue 14/7

8:55 a.m.-6:45 p.m.

3 stops12h 50m

C$ 758
Quickest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 23/9

5:40 a.m.-4:23 p.m.

1 stop7h 43m

Ottawa

Sat 26/9

6:05 p.m.-10:42 p.m.

1 stop7h 37m

C$ 760

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 23/9

10:30 a.m.-12:20 a.m.

2 stops10h 50m

Ottawa

Sat 26/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

C$ 770

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 21/10

8:10 a.m.-11:54 p.m.

1 stop12h 44m

Ottawa

Sun 25/10

2:10 p.m.-8:54 p.m.

1 stop9h 44m

C$ 778
Cheapest one-way

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 14/7

7:00 a.m.-7:20 p.m.

1 stop9h 20m

C$ 258

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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.
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

How much does it cost to fly round-trip from Seattle to Ottawa?

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.

  • How long is the flight from Seattle to Ottawa?

    A quick flight from Seattle to Ottawa can take about 7h 15m. WestJet provides one of the quickest options available for as low as C$ 631. The distance from Seattle to Ottawa is about 3529 km.

  • Can I find deals for flights from Seattle to Ottawa that include hotel bookings?

    Yes. In addition to deals on Seattle to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Ottawa.

  • Can I find deals for business class flights from Seattle to Ottawa?

    Yes. Cheapflights offers flight deals from Seattle to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Ottawa?

When you search for this flight from Seattle to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Ottawa?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Ottawa for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Ottawa with no change fees?

Certainly. Search results for flights to Ottawa from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Ottawa become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ottawa from Seattle today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.