Denver (DEN) to Seattle (SEA), Dec 21, 2026: round trips from $198, one way from $119

Denver (DEN) to Seattle (SEA), Dec 21, 2026: round trips from $198, one way from $119 on Axel, checked Nov 13, 2026. Lowest published fares: $198 round trip, Axel-exclusive, Frontier Airlines, nonstop, Dec 21, 2026 – Jan 4, 2027; $119 one way, Axel-exclusive, Frontier Airlines, nonstop, Dec 21, 2026; 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel dates Airline Flights Times, duration, stops Total price Price checked
2026-12-21 · one way Frontier Airlines F9605 10:08:00→12:22:00 3h 14m nonstop Axel-exclusive $119 Nov 13, 2026
2026-12-21 · one way Southwest Airlines WN244 15:40:00→17:50:00 3h 10m nonstop Axel-exclusive $196 Nov 13, 2026
2026-12-21 → 2026-12-22 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-22 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-23 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-23 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-21 → 2026-12-24 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-24 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-25 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:58:00→20:48:00 2h 50m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-25 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-26 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-26 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-27 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-27 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-28 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-28 Southwest Airlines WN244 / WN4956 15:40:00→17:50:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-29 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-29 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2026-12-30 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-30 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-21 → 2026-12-31 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2026-12-31 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2027-01-01 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2027-01-01 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2027-01-02 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2027-01-02 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2027-01-03 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $231 Nov 13, 2026
2026-12-21 → 2027-01-03 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-21 → 2027-01-04 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $198 Nov 13, 2026
2026-12-21 → 2027-01-04 Southwest Airlines WN244 / WN4956 15:40:00→17:50:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $324 Nov 13, 2026

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Seattle

Route overview: Denver to Seattle (SEA) flight deals

2026-12-21 · one way · Axel-exclusive $119

2026-12-21 · one way · Axel-exclusive $196

2026-12-21 → 2026-12-22 · Axel-exclusive $231

2026-12-21 → 2026-12-22 · Axel-exclusive $378

2026-12-21 → 2026-12-23 · Axel-exclusive $231

2026-12-21 → 2026-12-23 · Axel-exclusive $392

2026-12-21 → 2026-12-24 · Axel-exclusive $231

2026-12-21 → 2026-12-24 · Axel-exclusive $378

2026-12-21 → 2026-12-25 · Axel-exclusive $231

2026-12-21 → 2026-12-25 · Axel-exclusive $378

2026-12-21 → 2026-12-27 · Axel-exclusive $231

2026-12-21 → 2026-12-27 · Axel-exclusive $378

2026-12-21 → 2026-12-28 · Axel-exclusive $231

2026-12-21 → 2026-12-28 · Axel-exclusive $378

2026-12-21 → 2026-12-29 · Axel-exclusive $231

2026-12-21 → 2026-12-29 · Axel-exclusive $378

2026-12-21 → 2026-12-31 · Axel-exclusive $231

2026-12-21 → 2026-12-31 · Axel-exclusive $378

2026-12-21 → 2027-01-01 · Axel-exclusive $231

2026-12-21 → 2027-01-01 · Axel-exclusive $378

2026-12-21 → 2027-01-02 · Axel-exclusive $231

2026-12-21 → 2027-01-02 · Axel-exclusive $378

2026-12-21 → 2027-01-04 · Axel-exclusive $198

2026-12-21 → 2027-01-04 · Axel-exclusive $324

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