| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Seattle-Tacoma Denver | Outbound 10/18/25 direct AS0682 02h 53min | Return 11/17/25 direct AS0615 03h 00min |  Alaska Airlines |  | ? | $158 | |
| Seattle-Tacoma Denver | Outbound 10/18/25 direct AS0682 02h 53min | Return 11/17/25 direct AS0643 03h 00min | Alaska Airlines |  | ? | $165 | |
| Seattle-Tacoma Denver | Outbound 10/18/25 direct F93406 02h 51min | Return 11/17/25 direct F93405 03h 02min |  Frontier Airlines |  | ? | $165 | |
| Seattle-Tacoma Denver | Outbound 10/18/25 direct HA6555 02h 53min | Return 11/17/25 direct F93405 03h 02min |  Hawaiian Airlines |  | $165 | ||
| Seattle-Tacoma Denver | Outbound 09/04/25 direct F91176 02h 52min | Return 09/28/25 direct F93405 03h 02min | Frontier Airlines |  | $175 | ||
| Seattle-Tacoma Denver | Outbound 09/04/25 direct F91176 02h 52min | Return 09/28/25 direct F91175 03h 05min | Frontier Airlines | | $183 | ||
| Seattle-Tacoma Denver | Outbound 09/04/25 direct F91176 02h 52min | Return 09/28/25 direct F93405 03h 02min | Frontier Airlines | | ? | $186 | |
| Seattle-Tacoma Denver | Outbound 09/19/25 direct AS0642 02h 47min | Return 09/29/25 direct AS0615 03h 02min | Alaska Airlines |  | ? | $187 | |
| Seattle-Tacoma Denver | Outbound 09/04/25 direct HA6650 02h 47min | Return 09/28/25 direct HA4820 02h 58min | Hawaiian Airlines | | ? | $194 | |
| Seattle-Tacoma Denver | Outbound 09/04/25 direct F93406 02h 51min | Return 09/28/25 direct F91175 03h 05min | Frontier Airlines |  | $197 |
Tips and tricks to help you find cheap flights from Seattle Tacoma to Denver
Favorite airline: Frontier Airlines
84 % of bookings on this flight route are made with Frontier Airlines, Alaska Airlines and Delta.
Frontier Airlines
46 %
Alaska Airlines
23 %
Delta
15 %