Cheapest return flights from Seattle to Denver in February from $55

AirHint found the following cheapest return flights from Seattle (SEA) to Denver (DEN) in February 2026 (see full year).

Return flights

26 Feb - 28 Feb Frontier Airlines direct
21 Feb - 28 Feb Frontier Airlines direct
26 Feb - 05 Mar Frontier Airlines direct
27 Feb - 01 Mar Frontier Airlines direct
19 Feb - 24 Feb Frontier Airlines
25 Feb - 28 Feb Alaska Airlines direct
19 Feb - 24 Feb Frontier Airlines direct
28 Feb - 03 Mar Frontier Airlines direct
21 Feb - 23 Feb Frontier Airlines
20 Feb - 23 Feb Frontier Airlines
08 Feb - 09 Feb Frontier Airlines direct
24 Feb - 01 Mar Southwest Airlines direct
12 Feb - 16 Feb Frontier Airlines direct
21 Feb - 23 Feb Frontier Airlines direct
22 Feb - 13 Mar Frontier Airlines direct

Also check the deals for one-way flights from Seattle to Denver in February.

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