What is the cheapest airline that flies from Seattle/Tacoma Intl to Ottawa?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Ottawa

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport refresh daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ottawa Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ottawa Airport.

What documentation or ID do you need to fly to Ottawa Airport?

The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 183 Cheap Flights from Seattle to Ottawa in 2025

1 adult

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Find the cheapest flights from Seattle to Ottawa

Round-trip

One-way

Cheap round-trip flights

7:05 a.m. - 6:20 p.m.SEA-YOW

8h 15m1 stop

3:45 p.m. - 8:29 p.m.YOW-SEA

7h 44m1 stop

C$ 458WestJet

Find Deal

Thu, 4 Sep - Wed, 10 Sep

1:50 p.m. - 1:03 p.m.SEA-YOW

20h 13m2 stops

5:15 p.m. - 12:40 p.m.YOW-SEA

22h 25m1 stop

C$ 465

Find Deal

Thu, 4 Sep - Wed, 10 Sep

1:50 p.m. - 1:03 p.m.SEA-YOW

20h 13m2 stops

5:15 p.m. - 12:40 p.m.YOW-SEA

22h 25m1 stop

C$ 477

Find Deal

Thu, 4 Sep - Wed, 10 Sep

2:05 p.m. - 4:19 p.m.SEA-YOW

23h 14m2 stops

5:15 p.m. - 7:14 p.m.YOW-SEA

28h 59m2 stops

C$ 483WestJet

Find Deal

Mon, 15 Sep - Mon, 22 Sep

2:05 p.m. - 12:40 a.m.SEA-YOW

7h 35m1 stop

5:55 a.m. - 12:59 p.m.YOW-SEA

10h 04m2 stops

C$ 484WestJet

Find Deal

Tue, 23 Sep - Tue, 30 Sep

7:05 a.m. - 6:20 p.m.SEA-YOW

8h 15m1 stop

5:15 p.m. - 8:29 p.m.YOW-SEA

30h 14m2 stops

C$ 485WestJet

Find Deal

Sat, 13 Sep - Thu, 18 Sep

8:40 a.m. - 4:19 p.m.SEA-YOW

28h 39m2 stops

7:15 p.m. - 12:33 p.m.YOW-SEA

20h 18m2 stops

C$ 489WestJet

Find Deal

Wed, 3 Sep - Sat, 6 Sep

7:05 a.m. - 6:20 p.m.SEA-YOW

8h 15m1 stop

7:15 p.m. - 12:33 p.m.YOW-SEA

20h 18m2 stops

C$ 491WestJet

Find Deal

Sat, 13 Sep - Sat, 20 Sep

2:05 p.m. - 12:40 a.m.SEA-YOW

7h 35m1 stop

6:00 a.m. - 12:59 p.m.YOW-SEA

9h 59m1 stop

C$ 492WestJet

Find Deal

Tue, 23 Sep - Tue, 30 Sep

8:40 a.m. - 6:45 a.m.SEA-YOW

19h 05m1 stop

3:45 p.m. - 12:33 p.m.YOW-SEA

23h 48m2 stops

C$ 494WestJet

Find Deal

Wed, 3 Sep - Sat, 6 Sep

WestJet flights from Seattle to Ottawa

Our best WestJet deals on Seattle to Ottawa flight tickets

WestJet

4 Sep

SEA7:05 a.m.Seattle/Tacoma Intl

8h 15m

1 stop

YOW6:20 p.m.Ottawa

10 Sep

YOW3:45 p.m.Ottawa

7h 44m

1 stop

SEA8:29 p.m.Seattle/Tacoma Intl

C$ 458

Find similar

WestJet

15 Sep

SEA2:05 p.m.Seattle/Tacoma Intl

23h 14m

2 stops

YOW4:19 p.m.Ottawa

22 Sep

YOW5:15 p.m.Ottawa

28h 59m

2 stops

SEA7:14 p.m.Seattle/Tacoma Intl

C$ 483

Find similar

WestJet

23 Sep

SEA2:05 p.m.Seattle/Tacoma Intl

7h 35m

1 stop

YOW12:40 a.m.Ottawa

30 Sep

YOW5:55 a.m.Ottawa

10h 04m

2 stops

SEA12:59 p.m.Seattle/Tacoma Intl

C$ 484

Find similar

United Airlines flights from Seattle to Ottawa

Our best United Airlines deals on Seattle to Ottawa flight tickets

United Airlines

13 Aug

SEA12:20 a.m.Seattle/Tacoma Intl

13h 46m

1 stop

YOW5:06 p.m.Ottawa

17 Aug

YOW6:33 a.m.Ottawa

20h 26m

1 stop

SEA11:59 p.m.Seattle/Tacoma Intl

C$ 1,369

Find similar

United Airlines

13 Aug

SEA12:20 a.m.Seattle/Tacoma Intl

13h 45m

2 stops

YOW5:05 p.m.Ottawa

17 Aug

YOW5:15 a.m.Ottawa

8h 45m

1 stop

SEA11:00 a.m.Seattle/Tacoma Intl

C$ 1,416

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/9

7:05 a.m.-6:20 p.m.

1 stop8h 15m

Ottawa

Wed 10/9

3:45 p.m.-8:29 p.m.

1 stop7h 44m

C$ 458

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/9

1:50 p.m.-1:03 p.m.

2 stops20h 13m

Ottawa

Wed 10/9

5:15 p.m.-12:40 p.m.

1 stop22h 25m

C$ 465

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/9

1:50 p.m.-1:03 p.m.

2 stops20h 13m

Ottawa

Wed 10/9

5:15 p.m.-12:40 p.m.

1 stop22h 25m

C$ 477

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 15/9

2:05 p.m.-4:19 p.m.

2 stops23h 14m

Ottawa

Mon 22/9

5:15 p.m.-7:14 p.m.

2 stops28h 59m

C$ 483

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 23/9

2:05 p.m.-12:40 a.m.

1 stop7h 35m

Ottawa

Tue 30/9

5:55 a.m.-12:59 p.m.

2 stops10h 04m

C$ 484

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 13/9

7:05 a.m.-6:20 p.m.

1 stop8h 15m

Ottawa

Thu 18/9

5:15 p.m.-8:29 p.m.

2 stops30h 14m

C$ 485

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 3/9

8:40 a.m.-4:19 p.m.

2 stops28h 39m

Ottawa

Sat 6/9

7:15 p.m.-12:33 p.m.

2 stops20h 18m

C$ 489

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 13/9

7:05 a.m.-6:20 p.m.

1 stop8h 15m

Ottawa

Sat 20/9

7:15 p.m.-12:33 p.m.

2 stops20h 18m

C$ 491

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 23/9

2:05 p.m.-12:40 a.m.

1 stop7h 35m

Ottawa

Tue 30/9

6:00 a.m.-12:59 p.m.

1 stop9h 59m

C$ 492

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 3/9

8:40 a.m.-6:45 a.m.

1 stop19h 05m

Ottawa

Sat 6/9

3:45 p.m.-12:33 p.m.

2 stops23h 48m

C$ 494

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Ottawa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ottawa?

The month of September is, on average, the cheapest month to fly to Ottawa from Seattle, with most prices found around C$ 554. If you aren’t able to travel to Ottawa during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 628.

How far in advance should I book a flight to Ottawa?

You are more likely to see cheaper flights to Ottawa from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around C$ 733 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Seattle for as low as C$ 371 on momondo.

How have Seattle to Ottawa flight prices changed over time?

When to book flights from Seattle to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Ottawa according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Ottawa (SEA to YOW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ottawa

Best price found	C$ 183
Fastest flight time	6h 56m
Direct flights	None
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from Seattle in the past 72 hours is C$ 183. The best round-trip flight deal from Seattle to Ottawa found on momondo in the last 72 hours is C$ 458.

The fastest flight from Seattle to Ottawa takes 6h 56m

There are no direct flights from Seattle to Ottawa. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Ottawa Airport.

There is 1 airport near Ottawa: Ottawa (YOW)

Search flight deals

How far is Seattle/Tacoma Intl to Ottawa by plane?
There are 3521.0 km between Seattle/Tacoma Intl and Ottawa. Typically, this will take 7h 35m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport refresh daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ottawa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Gatineau

Brockville

Pembroke

Smiths Falls

Wakefield

Calabogie

Perth

Prescott

Petawawa

Winchester

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ottawa?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Ottawa . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Ottawa with flexible booking policies on momondo?

All flight searches from Seattle to Ottawa on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Ottawa?

momondo helps you find the best flight between Seattle and Ottawa by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ottawa right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ottawa from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.