Cheap flights from Ottawa to Seattle-Tacoma International

Round-trip
Economy
Ottawa (YOW)
Seattle (SEA)
Depart
Return
Any month
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The best prices from Ottawa to Seattle-Tacoma International are usually found in August or May, booked 0 days in advance, depart on a Saturday or Thursday and return on a Tuesday

How to find the cheapest flight from
Ottawa (YOW) to Seattle-Tacoma International (SEA)

All the information you need to plan the best YOW to SEA flight in 2021: compare Ottawa to Seattle-Tacoma International flight prices with the expected peak season, weather and rainfall in Seattle-Tacoma International.
YOW - SEA
Price
C$ 329 - C$ 707

Popular in

December

High demand for flights, 34% potential price rise

Cheapest in

August

Best time to find cheap flights, 30% potential price drop

Average price

C$ 343

Average for round-trip flights in May 2021

Round-trip from

C$ 329

From Ottawa to Seattle-Tacoma International

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ottawa to Seattle-Tacoma International?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 20% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Ottawa to Seattle-Tacoma International?

Find a great deal and save up to 14% by booking at least 46 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ottawa to Seattle-Tacoma International within the next two weeks, with the cheapest ticket starting at C$ 625.

When is the cheapest time to fly from Ottawa to Seattle-Tacoma International (YOW - SEA)?

One of the essential ways to save on airfare from Ottawa to Seattle-Tacoma International is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 33% on airfare.

Cheap flights from Ottawa to Seattle-Tacoma International in May, June 2021

The best prices found for YOW to SEA flights for May, June
2 Jun - 16 Jun
C$ 1,356pp
YOW
Ottawa
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
YOW
Ottawa
2 Jun - 16 Jun
C$ 1,450pp
YOW
Ottawa
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
YOW
Ottawa
2 Jun - 16 Jun
C$ 2,345pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YOW
Ottawa

Ottawa to Seattle-Tacoma International 2021 flight deals

Cheap flights to Seattle-Tacoma International from Ottawa found for this year
6 Sep - 14 Sep
C$ 399pp
YOW
Ottawa
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
31 Aug - 4 Sep
C$ 403pp
YOW
Ottawa
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
6 Sep - 14 Sep
C$ 406pp
YOW
Ottawa
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
YOW
Ottawa

One-way flights to Seattle-Tacoma International from Ottawa

The cheapest one-way flights from Ottawa to Seattle-Tacoma International
1:45 a.m. - 6:11 p.m.
United Airlines
2 stops
19h 26m
YOW - SEA
United Airlines
C$ 532
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ottawa</span> to <span class="emphasized">Seattle-Tacoma International</span> flights.

Flight FAQs

From Ottawa to Seattle-Tacoma International

Can I find flights from Ottawa to Seattle-Tacoma International for under C$ 485 on Cheapflights?

Yes, there are multiple flights from Ottawa to Seattle-Tacoma International for under C$ 485. The cheapest flight booked recently is on Air Canada for just C$ 399, but on average you can expect to pay C$ 499.

Which airlines flying from Ottawa to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like WestJet, Air Canada, and United Airlines flying from Ottawa to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

Are there direct flights from Ottawa to Seattle-Tacoma International for under C$ 364 on Cheapflights?

There are no direct flights from Ottawa to Seattle-Tacoma International, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Ottawa or Seattle?

The rainfall in Ottawa is generally same as the rainfall in Seattle. This will continue over the next 19 days.

Is Ottawa weather warmer or cooler than Seattle?

You can imagine temperatures to be in the 27 °C range in July. The weather in Seattle is generally colder than Ottawa's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Ottawa to Seattle-Tacoma International?

A quick flight from Ottawa to Seattle-Tacoma International can take about 7h 45m. United Airlines provides one of the quickest options available for as low as C$ 430. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Ottawa to Seattle-Tacoma International round-trip?

Cheapflights users have booked flights from Ottawa to Seattle-Tacoma International round-trip from C$ 400. Other airlines that can offer you cheap pricing are United Airlines, from C$ 409, and Delta, from C$ 504. Air Canada is priced at 14% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Ottawa to Seattle-Tacoma International one-way?

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as C$ 532.

Destination information for Seattle-Tacoma International

Things to know before you go - useful duration and weather info for your trip from Ottawa to Seattle-Tacoma International.
Today's exchange rate
C$ 1 = $0.83

Airports servicing Ottawa

Airports servicing Seattle

Top 5 airlines flying from Ottawa to Seattle-Tacoma International

The chart below displays the airlines Cheapflights users travelling from Ottawa to Seattle-Tacoma International choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
WestJet
C$ 262 C$ 367 No cancel fee 60%
Search WestJet flights
American Airlines
C$ 163 C$ 401 No cancel fee 71%
Search American Airlines flights
Delta
C$ 271 C$ 435 No cancel fee N/A
Search Delta flights
United Airlines
C$ 202 C$ 462 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 219 C$ 518 No cancel fee 67%
Search Air Canada flights
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