AirHint found the following cheapest one-way flights from Seattle (SEA) to Kelowna (YLW) in December 2025 (see full year).
One-Way flights
| 02 Dec | WestJet | ||
| 02 Dec | Alaska Airlines | direct | |
| 18 Dec | Frontier Airlines |
Also check the deals for return flights from Seattle to Kelowna in December.
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