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Cheap flights from Seattle to Ottawa from C$ 312

SEA — YOW
24 Nov — 1 Dec1
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

Wed 18/119:18 p.m. -
1 stop14h 14m
Wed 25/116:10 a.m. -
1 stop10h 30m
Deal found 20/10C$ 709
Thu 10/122:30 p.m. -
2 stops30h 10m
Fri 18/126:10 a.m. -
1 stop10h 30m
Deal found 22/10C$ 795
Fri 4/1210:40 p.m. -
1 stop12h 52m
Fri 11/123:15 p.m. -
1 stop22h 11m
Deal found 20/10C$ 804
Fri 20/115:48 p.m. -
1 stop16h 26m
Fri 27/116:10 a.m. -
1 stop10h 30m
Deal found 21/10C$ 808
Wed 9/126:00 a.m. -
1 stop10h 17m
Wed 16/123:15 p.m. -
1 stop9h 44m
Deal found 24/10C$ 828
Sat 21/113:43 p.m. -
2 stops16h 49m
Sun 29/116:55 p.m. -
1 stop17h 02m
Deal found 20/10C$ 959

Find flight deals from Seattle to Ottawa

Round-trip from

C$ 696

One-way from

C$ 312

Popular in

August

Cheapest in

April

Average price

C$ 816
WestJet
  • WestJet
  • 8/3-12/3
  • 2 total stops
  • 31h 30m total
  • Seattle to Ottawa
Search Deals
27/11-31/12
  • 27/11-31/12
  • 1 total stop
  • 16h 26m total
  • Seattle to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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 Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Fri 27/11

5:48 p.m.-1:14 p.m.

1 stop16h 26m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 314

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Sat 5/12

7:57 p.m.-2:32 p.m.

2 stops15h 35m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 398

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Wed 9/12

2:30 p.m.-2:30 p.m.

1 stop21h 00m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 410

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Tue 8/12

7:30 p.m.-2:09 p.m.

2 stops15h 39m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 434
Quickest round-trip

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Wed 9/12

10:10 a.m.-12:26 a.m.

2 stops11h 16m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 444

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Wed 20/1

10:40 p.m.-2:30 p.m.

1 stop12h 50m

Ottawa

Sat 23/1

10:35 a.m.-8:03 p.m.

1 stop12h 28m

C$ 772

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Wed 20/1

2:30 p.m.-11:40 p.m.

2 stops30h 10m

Ottawa

Sat 23/1

5:30 a.m.-1:40 p.m.

2 stops35h 10m

C$ 788

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Thu 10/12

2:30 p.m.-2:30 p.m.

1 stop21h 00m

Ottawa

Fri 18/12

6:10 a.m.-1:40 p.m.

1 stop10h 30m

C$ 795

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Fri 4/12

10:40 p.m.-2:32 p.m.

1 stop12h 52m

Ottawa

Fri 11/12

3:15 p.m.-10:26 a.m.

1 stop22h 11m

C$ 804

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

Wed 9/12

6:00 a.m.-7:17 p.m.

1 stop10h 17m

Ottawa

Wed 16/12

3:15 p.m.-9:59 p.m.

1 stop9h 44m

C$ 828

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/10

Showing 1-10 of 15 resultsSorted by cheapest first
1
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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

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?

Airfare is below average for this route at the moment.

Seattle to Ottawa flights typically cost between C$ 697 and C$ 1,008 in March.
The cheapest round-trip price found within the last 5 days was C$ 696 on WestJet (8 Mar-12 Mar).

Related info for your journey

  • How long is the flight from Seattle to Ottawa?

    A quick flight from Seattle to Ottawa can take about 30h 10m. WestJet provides one of the quickest options available for as low as C$ 788. 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
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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.

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