Cheap flights from Ottawa to Seattle

Round-trip
Economy
Ottawa (YOW)
Seattle (SEA)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Ottawa to Seattle/Tacoma Intl 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$ 271 - C$ 583
SEA
Temperature
5 - 19 °C
SEA
Precipitation
18 - 168 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

Round-trip from

C$ 346

From Ottawa to Seattle/Tacoma Intl

One-way from

C$ 298

One-way flight from Ottawa to Seattle/Tacoma Intl

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?

Travellers have found that booking a Friday departure is the best way to save up to 20% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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 33% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest month to fly from Ottawa to Seattle?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Seattle. Flights to Seattle from Ottawa in August are about C$ 490 on average during August, but can be found for as low as C$ 296.

Cheap flights from Ottawa to Seattle in November, December 2021

The best prices found for YOW to SEA flights for November, December
2 Dec - 4 Dec
C$ 616pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
2 Dec - 7 Dec
C$ 650pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
1 Dec - 7 Dec
C$ 655pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
YOW
Ottawa

Ottawa to Seattle 2022 flight deals

Cheap flights to Seattle from Ottawa found for next year
2 Dec - 4 Dec
C$ 616pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
2 Dec - 7 Dec
C$ 650pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YOW
Ottawa
1 Dec - 7 Dec
C$ 655pp
YOW
Ottawa
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
YOW
Ottawa

One-way flights to Seattle/Tacoma Intl from Ottawa

The cheapest one-way flights from Ottawa to Seattle
3:15 p.m. - 6:44 a.m.
WestJet
2 stops
18h 29m
YOW - SEA
WestJet
C$ 298
WestJet
4:00 a.m. - 9:21 a.m.
Multiple Airlines
1 stop
8h 21m
YOW - SEA
Multiple Airlines
C$ 303
Kiwi.com
2:00 a.m. - 9:08 a.m.
Air Canada
1 stop
10h 08m
YOW - SEA
Air Canada
C$ 683
Air Canada

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

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.

Can I find flights from Ottawa to Seattle for under C$ 500 on Cheapflights?

Yes, there are multiple flights from Ottawa to Seattle for under C$ 500. The cheapest flight booked recently is on Air Canada for just C$ 431, but on average you can expect to pay C$ 858.

How popular is this Ottawa to Seattle flight route?

Within the past month, 298 users have taken a look at flights from Ottawa to Seattle/Tacoma Intl.

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

According to our current data, Air Canada (C$ 431), and WestJet (C$ 1,001) offers the cheapest pricing from Ottawa to Seattle. You may be able to fly from Ottawa to Seattle for 12% less than the average price by searching for these airlines.

What are the cheapest flights from Ottawa to Seattle?

While on average a flight from Ottawa to Seattle is generally C$ 318, our data shows the cheapest flight currently is C$ 231. When looking at the most popular route, (Ottawa - Seattle/Tacoma Intl), you can expect to pay C$ 411 for that flight.

What are the most popular airlines that fly from Ottawa to Seattle?

The most popular airlines flying from Ottawa to Seattle are American Airlines, Air Canada and Delta. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Ottawa?

Information is based on travel restrictions from Ottawa to Seattle/Tacoma Intl

Most visitors from Ottawa need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Ottawa must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Ottawa are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Ottawa from Seattle?

Returning to Ottawa from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Ottawa.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Ottawa.

Hide COVID Travel Restrictions for Seattle, WA

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 = $0.79
Average temperature for November in Seattle
11.0 °C
Avg rainfall for November in Seattle
166.0 mm

Airports servicing Ottawa

Airports servicing Seattle

Top 5 airlines flying from Ottawa to Seattle/Tacoma Intl

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
American Airlines
C$ 208 C$ 512 No cancel fee 71%
Search American Airlines flights
United Airlines
C$ 257 C$ 588 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 279 C$ 660 No cancel fee 67%
Search Air Canada flights
WestJet
C$ 334 C$ 468 No cancel fee 60%
Search WestJet flights
Delta
C$ 345 C$ 555 No cancel fee N/A
Search Delta flights
Home North America USA Washington Seattle Cheap flights from Ottawa to Seattle
  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First