United flights from Fort Collins to Seattle from $ 277* or from $/mo
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Featured daily fares for flights from Fort Collins (FNL) to Seattle (SEA)
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More United deals on Fort Collins (FNL) to Seattle (SEA) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/08/25 - 07/15/25 | from $ 277 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/16/25 - 07/23/25 | from $ 277 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/01/25 - 07/08/25 | from $ 277 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/12/25 - 07/15/25 | from $ 277 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/01/25 - 07/04/25 | from $ 286 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 05/20/25 - 05/27/25 | from $ 287 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 05/21/25 - 05/28/25 | from $ 287 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/11/25 - 07/15/25 | from $ 287 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 07/20/25 - 07/23/25 | from $ 287 Viewed: 14 minutes ago |
| Fort Collins (FNL) | Seattle (SEA) | Roundtrip | Economy | 06/03/25 - 06/06/25 | from $ 287 Viewed: 14 minutes ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.
