Denver (DEN) to Seattle (SEA), May 25–28, 2027: from $247 round trip

Denver (DEN) to Seattle (SEA), May 25–28, 2027: from $247 round trip on Axel, checked Nov 14, 2026. Lowest published fare: $247 round trip, Axel-exclusive, Frontier Airlines, nonstop, May 25–28, 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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel dates	Airline	Flights	Times, duration, stops	Total price	Price checked
2027-05-25 → 2027-05-28	Frontier Airlines	F94545 / F91916	13:32:00→15:43:00 3h 11m nonstop · 13:24:00→17:13:00 2h 49m nonstop	Axel-exclusive $247	Nov 14, 2026
2027-05-25 → 2027-05-28	Southwest Airlines	WN3141 / WN3823	21:00:00→23:10:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop	Axel-exclusive $387	Nov 14, 2026
2027-05-25 → 2027-05-28	Alaska Airlines	AS682 / AS310	12:15:00→14:23:00 3h 08m nonstop · 19:35:00→23:15:00 2h 40m nonstop	Axel-exclusive $398	Nov 14, 2026
2027-05-25 → 2027-05-28	Delta Air Lines	DL1731 / DL3697	06:05:00→08:23:00 3h 18m nonstop · 13:30:00→17:16:00 2h 46m nonstop	Axel-exclusive $409	Nov 14, 2026
2027-05-25 → 2027-05-28	United Airlines	UA2013 / UA2601	16:10:00→18:12:00 3h 02m nonstop · 05:00:00→08:41:00 2h 41m nonstop	Axel-exclusive $409	Nov 14, 2026
2027-05-25 → 2027-05-28	Air Canada	AC575 + AC8804 / AC8803 + UA2470	08:15:00→14:32:00 7h 17m 1 stop via YVR · 10:10:00→16:27:00 5h 17m 1 stop via YVR	Axel-exclusive $516	Nov 14, 2026
2027-05-25 → 2027-05-28	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
2027-05-25 → 2027-05-28	Southwest Airlines	WN244 / WN3823	15:40:00→17:50:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop	Axel-exclusive $387	Nov 14, 2026
2027-05-25 → 2027-05-28	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
2027-05-25 → 2027-05-28	Delta Air Lines	DL2543 / DL3697	18:35:00→20:46:00 3h 11m nonstop · 13:30:00→17:16:00 2h 46m nonstop	Axel-exclusive $409	Nov 14, 2026
2027-05-25 → 2027-05-28	United Airlines	UA310 / UA2601	11:45:00→13:49:00 3h 04m nonstop · 05:00:00→08:41:00 2h 41m nonstop	Axel-exclusive $409	Nov 14, 2026
2027-05-25 → 2027-05-28	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 $267	Nov 14, 2026
2027-05-25 → 2027-05-28	Southwest Airlines	WN3148 + WN1586 / WN3823	13:55:00→18:40:00 5h 45m 1 stop via SMF · 13:55:00→17:30:00 2h 35m nonstop	Axel-exclusive $402	Nov 14, 2026
2027-05-25 → 2027-05-28	Southwest Airlines	WN1660 + WN948 / WN3823	07:30:00→13:00:00 6h 30m 1 stop via LAS · 13:55:00→17:30:00 2h 35m nonstop	Axel-exclusive $402	Nov 14, 2026
2027-05-25 → 2027-05-28	Alaska Airlines	AS686 + AS3217 / AS310	07:40:00→12:09:00 5h 29m 1 stop via PDX · 19:35:00→23:15:00 2h 40m nonstop	Axel-exclusive $413	Nov 14, 2026
2027-05-25 → 2027-05-28	United Airlines	UA1086 + AC8810 / UA2601	15:53:00→21:57:00 7h 04m 1 stop via YVR · 05:00:00→08:41:00 2h 41m nonstop	Axel-exclusive $429	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.

Hotels in Seattle for these nights (May 25–28, 2027 · 3 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $106 a night, $317 for 3 nights · 4★ Hilton Seattle Airport & Conference Center, $131 a night, $393 for 3 nights · 5★ Fairmont Olympic Hotel, $452 a night, $1,357 for 3 nights

All hotels in Seattle

Route overview: Denver to Seattle (SEA) flight deals

2027-05-25 → 2027-05-28 · Axel-exclusive $247

Frontier Airlines F94545: DEN 2027-05-25 13:32:00 → SEA 2027-05-25 15:43:00; nonstop; 191 minutes. Local airport times.
Frontier Airlines F91916: SEA 2027-05-28 13:24:00 → DEN 2027-05-28 17:13:00; nonstop; 169 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $387

Southwest Airlines WN3141: DEN 2027-05-25 21:00:00 → SEA 2027-05-25 23:10:00; nonstop; 190 minutes. Local airport times.
Southwest Airlines WN3823: SEA 2027-05-28 13:55:00 → DEN 2027-05-28 17:30:00; nonstop; 155 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $398

Alaska Airlines AS682: DEN 2027-05-25 12:15:00 → SEA 2027-05-25 14:23:00; nonstop; 188 minutes. Local airport times.
Alaska Airlines AS310: SEA 2027-05-28 19:35:00 → DEN 2027-05-28 23:15:00; nonstop; 160 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $409

Delta Air Lines DL1731: DEN 2027-05-25 06:05:00 → SEA 2027-05-25 08:23:00; nonstop; 198 minutes. Local airport times.
Delta Air Lines DL3697: SEA 2027-05-28 13:30:00 → DEN 2027-05-28 17:16:00; nonstop; 166 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $409

United Airlines UA2013: DEN 2027-05-25 16:10:00 → SEA 2027-05-25 18:12:00; nonstop; 182 minutes. Local airport times.
United Airlines UA2601: SEA 2027-05-28 05:00:00 → DEN 2027-05-28 08:41:00; nonstop; 161 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $516

Air Canada AC575 / AC8804: DEN 2027-05-25 08:15:00 → SEA 2027-05-25 14:32:00; 1 stop(s) via YVR; 437 minutes. Local airport times.
- AC575: DEN 2027-05-25 08:15:00 → YVR 2027-05-25 10:25:00; layover at YVR: 185 minutes.
- AC8804: YVR 2027-05-25 13:30:00 → SEA 2027-05-25 14:32:00.
Air Canada AC8803 / UA2470: SEA 2027-05-28 10:10:00 → DEN 2027-05-28 16:27:00; 1 stop(s) via YVR; 317 minutes. Local airport times.
- AC8803: SEA 2027-05-28 10:10:00 → YVR 2027-05-28 11:21:00; layover at YVR: 75 minutes.
- UA2470: YVR 2027-05-28 12:36:00 → DEN 2027-05-28 16:27:00.

2027-05-25 → 2027-05-28 · Axel-exclusive $247

Frontier Airlines F9605: DEN 2027-05-25 10:08:00 → SEA 2027-05-25 12:22:00; nonstop; 194 minutes. Local airport times.
Frontier Airlines F91916: SEA 2027-05-28 13:24:00 → DEN 2027-05-28 17:13:00; nonstop; 169 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $387

Southwest Airlines WN244: DEN 2027-05-25 15:40:00 → SEA 2027-05-25 17:50:00; nonstop; 190 minutes. Local airport times.
Southwest Airlines WN3823: SEA 2027-05-28 13:55:00 → DEN 2027-05-28 17:30:00; nonstop; 155 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $398

Alaska Airlines AS309: DEN 2027-05-25 21:42:00 → SEA 2027-05-25 23:49:00; nonstop; 187 minutes. Local airport times.
Alaska Airlines AS310: SEA 2027-05-28 19:35:00 → DEN 2027-05-28 23:15:00; nonstop; 160 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $409

Delta Air Lines DL2543: DEN 2027-05-25 18:35:00 → SEA 2027-05-25 20:46:00; nonstop; 191 minutes. Local airport times.
Delta Air Lines DL3697: SEA 2027-05-28 13:30:00 → DEN 2027-05-28 17:16:00; nonstop; 166 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $409

United Airlines UA310: DEN 2027-05-25 11:45:00 → SEA 2027-05-25 13:49:00; nonstop; 184 minutes. Local airport times.
United Airlines UA2601: SEA 2027-05-28 05:00:00 → DEN 2027-05-28 08:41:00; nonstop; 161 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $267

Frontier Airlines F92015 / F92407: DEN 2027-05-25 06:25:00 → SEA 2027-05-25 12:27:00; 1 stop(s) via LAS; 422 minutes. Local airport times.
- F92015: DEN 2027-05-25 06:25:00 → LAS 2027-05-25 07:37:00; layover at LAS: 112 minutes.
- F92407: LAS 2027-05-25 09:29:00 → SEA 2027-05-25 12:27:00.
Frontier Airlines F91916: SEA 2027-05-28 13:24:00 → DEN 2027-05-28 17:13:00; nonstop; 169 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $402

Southwest Airlines WN3148 / WN1586: DEN 2027-05-25 13:55:00 → SEA 2027-05-25 18:40:00; 1 stop(s) via SMF; 345 minutes. Local airport times.
- WN3148: DEN 2027-05-25 13:55:00 → SMF 2027-05-25 15:30:00; layover at SMF: 70 minutes.
- WN1586: SMF 2027-05-25 16:40:00 → SEA 2027-05-25 18:40:00.
Southwest Airlines WN3823: SEA 2027-05-28 13:55:00 → DEN 2027-05-28 17:30:00; nonstop; 155 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $402

Southwest Airlines WN1660 / WN948: DEN 2027-05-25 07:30:00 → SEA 2027-05-25 13:00:00; 1 stop(s) via LAS; 390 minutes. Local airport times.
- WN1660: DEN 2027-05-25 07:30:00 → LAS 2027-05-25 08:30:00; layover at LAS: 90 minutes.
- WN948: LAS 2027-05-25 10:00:00 → SEA 2027-05-25 13:00:00.
Southwest Airlines WN3823: SEA 2027-05-28 13:55:00 → DEN 2027-05-28 17:30:00; nonstop; 155 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $413

Alaska Airlines AS686 / AS3217: DEN 2027-05-25 07:40:00 → SEA 2027-05-25 12:09:00; 1 stop(s) via PDX; 329 minutes. Local airport times.
- AS686: DEN 2027-05-25 07:40:00 → PDX 2027-05-25 09:39:00; layover at PDX: 75 minutes.
- AS3217: PDX 2027-05-25 10:54:00 → SEA 2027-05-25 12:09:00.
Alaska Airlines AS310: SEA 2027-05-28 19:35:00 → DEN 2027-05-28 23:15:00; nonstop; 160 minutes. Local airport times.

2027-05-25 → 2027-05-28 · Axel-exclusive $429

United Airlines UA1086 / AC8810: DEN 2027-05-25 15:53:00 → SEA 2027-05-25 21:57:00; 1 stop(s) via YVR; 424 minutes. Local airport times.
- UA1086: DEN 2027-05-25 15:53:00 → YVR 2027-05-25 18:04:00; layover at YVR: 166 minutes.
- AC8810: YVR 2027-05-25 20:50:00 → SEA 2027-05-25 21:57:00.
United Airlines UA2601: SEA 2027-05-28 05:00:00 → DEN 2027-05-28 08:41:00; nonstop; 161 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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This page: Denver (DEN) to Seattle (SEA) · May 25, 2027 · return May 28, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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