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| Depart | Return | Price | Airline |
|---|---|---|---|
| Sep 01 | Sep 10 |
$620
|
Mixed
|
| Depart | Return | Price | Airline |
|---|
| Depart | Return | Price | Airline |
|---|
The cheapest flights from Montreal to Seattle are connecting flights on American Airlines, Delta Airlines, United Airlines, USAirways. Sometimes the cheapest airfare from Montreal to Seattle is with interline flight options (two different airlines)included in our search.
