AirHint found the following cheapest one-way flights from Vancouver (YVR) to Seattle (SEA) in September 2026 (see full year).
One-Way flights
| 08 Sep | Alaska Airlines | direct | |
| 09 Sep | Alaska Airlines | direct | |
| 11 Sep | Alaska Airlines | direct | |
| 21 Sep | Air Canada | direct | |
| 13 Sep | Harbour Air | direct | |
| 16 Sep | Harbour Air | direct |
Also check the deals for return flights from Vancouver to Seattle in September.
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