Denver (DEN) to Seattle (SEA), May 29, 2027: round trips from $247, one way from $138

Denver (DEN) to Seattle (SEA), May 29, 2027: round trips from $247, one way from $138 on Axel, checked Nov 14, 2026. Lowest published fares: $247 round trip, Axel-exclusive, Frontier Airlines, nonstop, May 29, 2027 – Jun 2, 2027; $138 one way, Axel-exclusive, Frontier Airlines, nonstop, May 29, 2027; 1 adult, economy, checked Nov 14, 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
2027-05-29 · one way Frontier Airlines F9605 10:08:00→12:22:00 3h 14m nonstop Axel-exclusive $138 Nov 14, 2026
2027-05-29 · one way Alaska Airlines AS309 21:42:00→23:49:00 3h 07m nonstop Axel-exclusive $219 Nov 14, 2026
2027-05-29 → 2027-05-30 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $265 Nov 14, 2026
2027-05-29 → 2027-05-30 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $426 Nov 14, 2026
2027-05-29 → 2027-05-31 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $265 Nov 14, 2026
2027-05-29 → 2027-05-31 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $426 Nov 14, 2026
2027-05-29 → 2027-06-01 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $265 Nov 14, 2026
2027-05-29 → 2027-06-01 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:37:00→23:17:00 2h 40m nonstop Axel-exclusive $426 Nov 14, 2026
2027-05-29 → 2027-06-02 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-02 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-03 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-03 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 15:16:00→18:56:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-04 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-04 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:35:00→23:15:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-05 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-05 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:37:00→23:17:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-06 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-06 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-07 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-07 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-08 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-08 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:37:00→23:17:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-09 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-09 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-10 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-10 Alaska Airlines AS309 / AS421 21:42:00→23:49:00 3h 07m nonstop · 15:16:00→18:56:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-11 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-11 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:35:00→23:15:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-05-29 → 2027-06-12 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-05-29 → 2027-06-12 Alaska Airlines AS309 / AS310 21:42:00→23:49:00 3h 07m nonstop · 19:37:00→23:17:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 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

2027-05-29 · one way · Axel-exclusive $138

2027-05-29 · one way · Axel-exclusive $219

2027-05-29 → 2027-05-30 · Axel-exclusive $265

2027-05-29 → 2027-05-30 · Axel-exclusive $426

2027-05-29 → 2027-05-31 · Axel-exclusive $265

2027-05-29 → 2027-05-31 · Axel-exclusive $426

2027-05-29 → 2027-06-01 · Axel-exclusive $265

2027-05-29 → 2027-06-01 · Axel-exclusive $426

2027-05-29 → 2027-06-02 · Axel-exclusive $247

2027-05-29 → 2027-06-02 · Axel-exclusive $398

2027-05-29 → 2027-06-04 · Axel-exclusive $247

2027-05-29 → 2027-06-04 · Axel-exclusive $398

2027-05-29 → 2027-06-05 · Axel-exclusive $247

2027-05-29 → 2027-06-05 · Axel-exclusive $398

2027-05-29 → 2027-06-06 · Axel-exclusive $247

2027-05-29 → 2027-06-06 · Axel-exclusive $398

2027-05-29 → 2027-06-08 · Axel-exclusive $247

2027-05-29 → 2027-06-08 · Axel-exclusive $398

2027-05-29 → 2027-06-09 · Axel-exclusive $247

2027-05-29 → 2027-06-09 · Axel-exclusive $398

2027-05-29 → 2027-06-10 · Axel-exclusive $247

2027-05-29 → 2027-06-10 · Axel-exclusive $398

2027-05-29 → 2027-06-12 · Axel-exclusive $247

2027-05-29 → 2027-06-12 · Axel-exclusive $398

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