Cheap flights from Seattle to Mont-Cascades

View AU$399 flight on Mon, 18 Aug. 2025Opens in a new window

Popular airlines from Seattle to Mont-Cascades

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Cheap Flights from Seattle (SEA) to Mont-Cascades (YOW)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$923 Return, found 1 day ago
AU$923
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$923 found 1 day ago
Alaska Airlines
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$927 Return, found 1 day ago
AU$927
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$927 found 1 day ago
Alaska Airlines
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$930 Return, found 1 day ago
AU$930
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$930 found 1 day ago
Alaska Airlines
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$932 Return, found 1 day ago
AU$932
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$932 found 1 day ago
Air Canada
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$1,049 Return, found 1 day ago
AU$1,049
Return
found 1 day ago
Select Air Canada flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$1,049 found 1 day ago
United
Wed, 5 Nov. - Wed, 19 Nov.
SEA
Seattle
YOW
Ottawa
AU$1,143 Return, found 1 day ago
AU$1,143
Return
found 1 day ago
Select United flight, departing Wed, 5 Nov. from Seattle to Ottawa, returning Wed, 19 Nov., priced at AU$1,143 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Ottawa (YOW)

September is typically the cheapest month to fly

From AU$468 - AU$816 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.