Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Ottawa
The cheapest flights right now
Seattle – Ottawa
Outbound – Dec 4, 2026
2 stops
9h 53m EWR
YTZ
Return – Dec 9, 2026
1 stop
10h 30m YYC
$586
yesterday
Seattle – Ottawa
Outbound – Dec 3, 2026
1 stop
10h 17m EWR
Return – Dec 9, 2026
1 stop
9h 44m EWR
$585
yesterday
Seattle – Ottawa
Outbound – Dec 3, 2026
1 stop
7h 44m YVR
Return – Dec 9, 2026
1 stop
10h 30m YYC
$648
yesterday
Seattle – Ottawa
Outbound – Dec 3, 2026
1 stop
10h 17m EWR
Return – Dec 9, 2026
1 stop
10h 30m YYC
$520
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$311
Average price of a round trip
$436
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
11h37
A flight from Seattle to Ottawa takes on average 11h37.
Best time
May
According to user searches, the ideal month to go to Ottawa is May.
Tips for finding a cheap flight from Seattle to Ottawa
Check out our tips for booking your flight to Ottawa (Canada) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $329 (calculation over the last two years). The most touristic season corresponds to the months of October, July and September.
For the cheapest flights, it is advisable to buy your ticket at least 13 days before the departure date.
The airline offering the cheapest flight tickets is WestJet. A ticket from the airline WestJet to Ottawa costs on average $436.
The airlines that offer the most flights are .
Price of flight tickets from Seattle to Ottawa
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $311 to $539
- The average price of a flight ticket is about $436
- Prices are lowest for stays in the month of September
- The month in which booking a ticket is cheaper is: September
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Ottawa, Canada
airports :
Macdonald-Cartier International Airport (YOW)
Rockcliffe Airport (YRO)
local time :
Ottawa is in the country Canada, the time zone is [[timezone]]. In Ottawa, it is currently {toLocalTime}, the temperature is on average 7°C, with a minimum of 2°C and a maximum of 12°C.
The city of Ottawa has 2 airport(s): Macdonald-Cartier and Rockcliffe
Useful info about Ottawa
What is the least touristic period to go to Ottawa?
If you want to visit Ottawa during the least touristic period, choose the month of May.
What is the most popular time to travel to Ottawa?
In Ottawa, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Ottawa?
According to our data, it is recommended to book your flight 13 days before your departure. If you book your flight ticket 2 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to Ottawa is Friday.
What are the arrival and destination airports when traveling between Seattle and Ottawa?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Macdonald-Cartier.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Seattle to Ottawa?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Ottawa?
In summer, the average temperature is 20°C in Ottawa and 18°C in Seattle. The average rainfall in summer is 116 mm in Ottawa and 38 mm in Seattle. In summer, it is warmer in Ottawa and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
