Cheap Flights from Seattle to Montreal
Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Montreal
Prices updated 13 days ago
406 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Aug 2, 2026.)
Today’s best flight deals from Seattle to Montreal
Explore current cheapest deals departing from Seattle to Montreal
2026-10-16 – 2026-10-18
SEA - Montreal
75% AI deal score
$393
$363
Round trip
2026-10-01 – 2026-10-07
SEA - Montreal
73% AI deal score
$376
$368
Round trip
2026-09-20 – 2026-09-28
SEA - Montreal
73% AI deal score
$374
$369
Round trip
2026-09-15 – 2026-09-19
SEA - Montreal
75% AI deal score
$407
$369
Round trip
2026-09-25 – 2026-09-30
SEA - Montreal
74% AI deal score
$401
$380
Round trip
2026-10-21 – 2026-10-26
SEA - Montreal
73% AI deal score
$392
$380
Round trip
2026-10-16 – 2026-10-19
SEA - Montreal
73% AI deal score
$393
$383
Round trip
2026-10-14 – 2026-10-18
SEA - Montreal
73% AI deal score
$393
$383
Round trip
2026-09-23 – 2026-09-27
SEA - Montreal
74% AI deal score
$406
$384
Round trip
2026-09-21 – 2026-09-28
SEA - Montreal
73% AI deal score
$390
$384
Round trip
