Cheap flights from Ottawa to Seattle

Round-trip
Economy
Ottawa (YOW)
Seattle (SEA)
Depart
Return
Any month
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The best prices from Ottawa to Seattle 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 (SEA)

All the information you need to plan the best YOW to SEA flight in 2021: compare Ottawa to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
YOW - SEA
Price
C$ 341 - C$ 733
SEA
Temperature
8 - 25 °C
SEA
Rainfall
18 - 166 mm

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$ 490

Average for round-trip flights in April 2021

Round-trip from

C$ 341

From Ottawa to Seattle

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?

Departing on a Friday is a good option for securing a great price. You can expect to save up to 20% when planning your travel around this day of the week.

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

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 within the next two weeks, with the cheapest ticket starting at C$ 647.

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

It’s typically best to fly out from Ottawa to Seattle in the evening. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

Ottawa to Seattle 2021 flight deals

Cheap flights to Seattle from Ottawa found for this year
17 Jun - 20 Jun
C$ 388pp
YOW
Ottawa
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
17 Jun - 20 Jun
C$ 395pp
YOW
Ottawa
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
YOW
Ottawa
2 Aug - 14 Aug
C$ 396pp
YOW
Ottawa
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
YOW
Ottawa

Related info for your journey

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

Flight FAQs

From Ottawa to Seattle

Can I find flights from Ottawa to Seattle for under C$ 503 on Cheapflights?

Yes, there are multiple flights from Ottawa to Seattle for under C$ 503. The cheapest flight booked recently is on Air Canada for just C$ 388, but on average you can expect to pay C$ 959.

What safety measures are being taken by airlines flying from Ottawa to Seattle/Tacoma Intl to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travellers flying from Ottawa to Seattle/Tacoma Intl are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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 for under C$ 377 on Cheapflights?

There are no direct flights from Ottawa to Seattle, 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 16 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?

A quick flight from Ottawa to Seattle can take about 8h 07m. Air Canada provides one of the quickest options available for as low as C$ 1,922. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Air Canada, at C$ 389, was found to be the cheapest airline from Ottawa to Seattle.Alternate airlines to your destination round-trip include United Airlines and WestJet. You may be able to fly from Ottawa to Seattle for 19% less than the average price by searching for these airlines.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Ottawa to Seattle.
Today's exchange rate
C$ 1 = $0.80
Average temperature for April in Seattle
16.0 °C
Avg rainfall for April in Seattle
75.0 mm

Airports servicing Ottawa

Airports servicing Seattle

Top 5 airlines flying from Ottawa to Seattle

The chart below displays the airlines Cheapflights users travelling from Ottawa to Seattle 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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