Denver (DEN) to Seattle (SEA), Mar 25, 2027: round trips from $210, one way from $121

Denver (DEN) to Seattle (SEA), Mar 25, 2027: round trips from $210, one way from $121 on Axel, checked Nov 14, 2026. Lowest published fares: $210 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Mar 25–26, 2027; $121 one way, Axel-exclusive, Frontier Airlines, 1 stop, Mar 25, 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
2027-03-25 · one way Southwest Airlines WN3141 20:55:00→23:05:00 3h 10m nonstop Axel-exclusive $161 Nov 14, 2026
2027-03-25 · one way Frontier Airlines F92015 + F92407 06:25:00→12:27:00 7h 02m 1 stop via LAS Axel-exclusive $121 Nov 14, 2026
2027-03-25 → 2027-03-26 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $311 Nov 14, 2026
2027-03-25 → 2027-03-26 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $210 Nov 14, 2026
2027-03-25 → 2027-03-27 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $311 Nov 14, 2026
2027-03-25 → 2027-03-27 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $210 Nov 14, 2026
2027-03-25 → 2027-03-28 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $362 Nov 14, 2026
2027-03-25 → 2027-03-28 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-25 → 2027-03-29 Southwest Airlines WN3141 / WN4956 20:55:00→23:05:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $362 Nov 14, 2026
2027-03-25 → 2027-03-29 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-25 → 2027-03-30 Southwest Airlines WN3141 / WN2150 20:55:00→23:05:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-03-30 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-03-31 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $346 Nov 14, 2026
2027-03-25 → 2027-03-31 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-01 Southwest Airlines WN3141 / WN2150 20:55:00→23:05:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-01 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-02 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-02 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-03 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-03 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-04 Southwest Airlines WN3141 / WN3823 20:55:00→23:05:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-04 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-05 Southwest Airlines WN3141 / WN4956 20:55:00→23:05:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-05 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-06 Southwest Airlines WN3141 / WN2150 20:55:00→23:05:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-06 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-07 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $346 Nov 14, 2026
2027-03-25 → 2027-04-07 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $230 Nov 14, 2026
2027-03-25 → 2027-04-08 Southwest Airlines WN3141 / WN2150 20:55:00→23:05:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $335 Nov 14, 2026
2027-03-25 → 2027-04-08 Frontier Airlines F92015 + F92407 / F91916 06:25:00→12:27:00 7h 02m 1 stop via LAS · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $230 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

2027-03-25 · one way · Axel-exclusive $121

2027-03-25 · one way · Axel-exclusive $161

2027-03-25 → 2027-03-26 · Axel-exclusive $210

2027-03-25 → 2027-03-26 · Axel-exclusive $311

2027-03-25 → 2027-03-27 · Axel-exclusive $210

2027-03-25 → 2027-03-27 · Axel-exclusive $311

2027-03-25 → 2027-03-28 · Axel-exclusive $247

2027-03-25 → 2027-03-28 · Axel-exclusive $362

2027-03-25 → 2027-03-29 · Axel-exclusive $247

2027-03-25 → 2027-03-29 · Axel-exclusive $362

2027-03-25 → 2027-03-31 · Axel-exclusive $230

2027-03-25 → 2027-03-31 · Axel-exclusive $346

2027-03-25 → 2027-04-01 · Axel-exclusive $230

2027-03-25 → 2027-04-01 · Axel-exclusive $335

2027-03-25 → 2027-04-02 · Axel-exclusive $230

2027-03-25 → 2027-04-02 · Axel-exclusive $335

2027-03-25 → 2027-04-04 · Axel-exclusive $230

2027-03-25 → 2027-04-04 · Axel-exclusive $335

2027-03-25 → 2027-04-05 · Axel-exclusive $230

2027-03-25 → 2027-04-05 · Axel-exclusive $335

2027-03-25 → 2027-04-06 · Axel-exclusive $230

2027-03-25 → 2027-04-06 · Axel-exclusive $335

2027-03-25 → 2027-04-08 · Axel-exclusive $230

2027-03-25 → 2027-04-08 · Axel-exclusive $335

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