Denver (DEN) to Seattle (SEA), Dec 20, 2026: round trips from $378, one way from $196

Denver (DEN) to Seattle (SEA), Dec 20, 2026: round trips from $378, one way from $196 on Axel, checked Nov 13, 2026. Lowest published fares: $378 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 20–21, 2026; $196 one way, Axel-exclusive, Southwest Airlines, nonstop, Dec 20, 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
2026-12-20 · one way Southwest Airlines WN1788 08:30:00→10:40:00 3h 10m nonstop Axel-exclusive $196 Nov 13, 2026
2026-12-20 · one way Alaska Airlines AS421 19:24:00→21:40:00 3h 16m nonstop Axel-exclusive $203 Nov 13, 2026
2026-12-20 → 2026-12-21 Southwest Airlines WN1788 / WN4956 08:30:00→10:40:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-21 Alaska Airlines AS421 / AS535 19:24:00→21:40:00 3h 16m nonstop · 10:09:00→13:53:00 2h 44m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-22 Southwest Airlines WN1788 / WN2150 08:30:00→10:40:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-22 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 14:47:00→18:26:00 2h 39m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-23 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-23 Southwest Airlines WN1788 / WN3833 + WN2542 08:30:00→10:40:00 3h 10m nonstop · 05:15:00→12:30:00 6h 15m 1 stop via SMF Axel-exclusive $399 Nov 13, 2026
2026-12-20 → 2026-12-24 Southwest Airlines WN1788 / WN2150 08:30:00→10:40:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-24 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 15:16:00→18:56:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-25 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-25 Alaska Airlines AS421 / AS310 19:24:00→21:40:00 3h 16m nonstop · 19:35:00→23:15:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-26 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-26 Alaska Airlines AS421 / AS310 19:24:00→21:40:00 3h 16m nonstop · 17:05:00→20:44:00 2h 39m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-27 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-27 Alaska Airlines AS421 / AS535 19:24:00→21:40:00 3h 16m nonstop · 10:03:00→13:48:00 2h 45m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-28 Southwest Airlines WN1788 / WN4956 08:30:00→10:40:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-28 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-29 Southwest Airlines WN1788 / WN2150 08:30:00→10:40:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-29 Alaska Airlines AS421 / AS310 19:24:00→21:40:00 3h 16m nonstop · 19:37:00→23:17:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-30 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2026-12-30 Southwest Airlines WN1788 / WN3833 + WN2542 08:30:00→10:40:00 3h 10m nonstop · 05:15:00→12:30:00 6h 15m 1 stop via SMF Axel-exclusive $399 Nov 13, 2026
2026-12-20 → 2026-12-31 Southwest Airlines WN1788 / WN2150 08:30:00→10:40:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2026-12-31 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 15:16:00→18:56:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2027-01-01 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2027-01-01 Alaska Airlines AS421 / AS310 19:24:00→21:40:00 3h 16m nonstop · 19:35:00→23:15:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2027-01-02 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2027-01-02 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 Nov 13, 2026
2026-12-20 → 2027-01-03 Southwest Airlines WN1788 / WN3823 08:30:00→10:40:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $378 Nov 13, 2026
2026-12-20 → 2027-01-03 Alaska Airlines AS421 / AS421 19:24:00→21:40:00 3h 16m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $392 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

2026-12-20 · one way · Axel-exclusive $196

2026-12-20 · one way · Axel-exclusive $203

2026-12-20 → 2026-12-21 · Axel-exclusive $378

2026-12-20 → 2026-12-21 · Axel-exclusive $392

2026-12-20 → 2026-12-22 · Axel-exclusive $378

2026-12-20 → 2026-12-22 · Axel-exclusive $392

2026-12-20 → 2026-12-23 · Axel-exclusive $392

2026-12-20 → 2026-12-23 · Axel-exclusive $399

2026-12-20 → 2026-12-24 · Axel-exclusive $378

2026-12-20 → 2026-12-24 · Axel-exclusive $392

2026-12-20 → 2026-12-26 · Axel-exclusive $378

2026-12-20 → 2026-12-26 · Axel-exclusive $392

2026-12-20 → 2026-12-27 · Axel-exclusive $378

2026-12-20 → 2026-12-27 · Axel-exclusive $392

2026-12-20 → 2026-12-28 · Axel-exclusive $378

2026-12-20 → 2026-12-28 · Axel-exclusive $392

2026-12-20 → 2026-12-30 · Axel-exclusive $392

2026-12-20 → 2026-12-30 · Axel-exclusive $399

2026-12-20 → 2026-12-31 · Axel-exclusive $378

2026-12-20 → 2026-12-31 · Axel-exclusive $392

2026-12-20 → 2027-01-01 · Axel-exclusive $378

2026-12-20 → 2027-01-01 · Axel-exclusive $392

2026-12-20 → 2027-01-03 · Axel-exclusive $378

2026-12-20 → 2027-01-03 · Axel-exclusive $392

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