Denver (DEN) to Seattle (SEA), Jan 17–21, 2027: from $165 round trip

Denver (DEN) to Seattle (SEA), Jan 17–21, 2027: from $165 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $165 round trip, Axel-exclusive, Frontier Airlines, nonstop, Jan 17–21, 2027, 1 adult, economy, checked Oct 29, 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 issued (UTC)
2027-01-17 → 2027-01-21	Frontier Airlines	F94545 / F91916	13:14:00→15:22:00 3h 08m nonstop · 13:24:00→17:13:00 2h 49m nonstop	Axel-exclusive $165.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Southwest Airlines	WN1788 / WN2150	08:30:00→10:40:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop	Axel-exclusive $270.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Alaska Airlines	AS421 / AS421	19:24:00→21:40:00 3h 16m nonstop · 15:16:00→18:56:00 2h 40m nonstop	Axel-exclusive $280.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Delta Air Lines	DL1731 / DL1358	06:05:00→08:23:00 3h 18m nonstop · 08:30:00→12:22:00 2h 52m nonstop	Axel-exclusive $290.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	United Airlines	UA2302 / UA757	11:30:00→13:35:00 3h 05m nonstop · 16:04:00→19:45:00 2h 41m nonstop	Axel-exclusive $290.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	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 $395.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Frontier Airlines	F9605 / F91916	10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop	Axel-exclusive $165.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Southwest Airlines	WN3141 / WN2150	21:00:00→23:10:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop	Axel-exclusive $270.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Alaska Airlines	AS317 / AS421	07:00:00→09:13:00 3h 13m nonstop · 15:16:00→18:56:00 2h 40m nonstop	Axel-exclusive $280.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	United Airlines	UA2651 / UA757	21:10:00→23:16:00 3h 06m nonstop · 16:04:00→19:45:00 2h 41m nonstop	Axel-exclusive $290.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Delta Air Lines	DL2543 / DL1358	18:35:00→20:46:00 3h 11m nonstop · 08:30:00→12:22:00 2h 52m nonstop	Axel-exclusive $290.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	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 $182.50	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Southwest Airlines	WN3148 + WN1586 / WN2150	13:55:00→18:40:00 5h 45m 1 stop via SMF · 09:25:00→13:00:00 2h 35m nonstop	Axel-exclusive $285.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Southwest Airlines	WN1660 + WN948 / WN2150	07:30:00→13:00:00 6h 30m 1 stop via LAS · 09:25:00→13:00:00 2h 35m nonstop	Axel-exclusive $285.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	Alaska Airlines	AS686 + AS3217 / AS421	07:40:00→12:09:00 5h 29m 1 stop via PDX · 15:16:00→18:56:00 2h 40m nonstop	Axel-exclusive $295.00	2026-10-29T01:05:09Z
2027-01-17 → 2027-01-21	United Airlines	UA1086 + AC8810 / UA757	15:53:00→21:57:00 7h 04m 1 stop via YVR · 16:04:00→19:45:00 2h 41m nonstop	Axel-exclusive $310.00	2026-10-29T01:05:09Z

Route overview: Denver to Seattle (SEA) flight deals

2027-01-17 → 2027-01-21 · Axel-exclusive $165.00

Frontier Airlines F94545: DEN 2027-01-17 13:14:00 → SEA 2027-01-17 15:22:00; nonstop; 188 minutes. Local airport times.
Frontier Airlines F91916: SEA 2027-01-21 13:24:00 → DEN 2027-01-21 17:13:00; nonstop; 169 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $270.00

Southwest Airlines WN1788: DEN 2027-01-17 08:30:00 → SEA 2027-01-17 10:40:00; nonstop; 190 minutes. Local airport times.
Southwest Airlines WN2150: SEA 2027-01-21 09:25:00 → DEN 2027-01-21 13:00:00; nonstop; 155 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $280.00

Alaska Airlines AS421: DEN 2027-01-17 19:24:00 → SEA 2027-01-17 21:40:00; nonstop; 196 minutes. Local airport times.
Alaska Airlines AS421: SEA 2027-01-21 15:16:00 → DEN 2027-01-21 18:56:00; nonstop; 160 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $290.00

Delta Air Lines DL1731: DEN 2027-01-17 06:05:00 → SEA 2027-01-17 08:23:00; nonstop; 198 minutes. Local airport times.
Delta Air Lines DL1358: SEA 2027-01-21 08:30:00 → DEN 2027-01-21 12:22:00; nonstop; 172 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $290.00

United Airlines UA2302: DEN 2027-01-17 11:30:00 → SEA 2027-01-17 13:35:00; nonstop; 185 minutes. Local airport times.
United Airlines UA757: SEA 2027-01-21 16:04:00 → DEN 2027-01-21 19:45:00; nonstop; 161 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $395.00

Air Canada AC575 / AC8804: DEN 2027-01-17 08:15:00 → SEA 2027-01-17 14:32:00; 1 stop(s) via YVR; 437 minutes. Local airport times.
- AC575: DEN 2027-01-17 08:15:00 → YVR 2027-01-17 11:25:00; layover at YVR: 185 minutes.
- AC8804: YVR 2027-01-17 14:30:00 → SEA 2027-01-17 14:32:00.
Air Canada AC8803 / UA2470: SEA 2027-01-21 10:10:00 → DEN 2027-01-21 16:27:00; 1 stop(s) via YVR; 317 minutes. Local airport times.
- AC8803: SEA 2027-01-21 10:10:00 → YVR 2027-01-21 12:21:00; layover at YVR: 75 minutes.
- UA2470: YVR 2027-01-21 13:36:00 → DEN 2027-01-21 16:27:00.

2027-01-17 → 2027-01-21 · Axel-exclusive $165.00

Frontier Airlines F9605: DEN 2027-01-17 10:08:00 → SEA 2027-01-17 12:22:00; nonstop; 194 minutes. Local airport times.
Frontier Airlines F91916: SEA 2027-01-21 13:24:00 → DEN 2027-01-21 17:13:00; nonstop; 169 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $270.00

Southwest Airlines WN3141: DEN 2027-01-17 21:00:00 → SEA 2027-01-17 23:10:00; nonstop; 190 minutes. Local airport times.
Southwest Airlines WN2150: SEA 2027-01-21 09:25:00 → DEN 2027-01-21 13:00:00; nonstop; 155 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $280.00

Alaska Airlines AS317: DEN 2027-01-17 07:00:00 → SEA 2027-01-17 09:13:00; nonstop; 193 minutes. Local airport times.
Alaska Airlines AS421: SEA 2027-01-21 15:16:00 → DEN 2027-01-21 18:56:00; nonstop; 160 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $290.00

United Airlines UA2651: DEN 2027-01-17 21:10:00 → SEA 2027-01-17 23:16:00; nonstop; 186 minutes. Local airport times.
United Airlines UA757: SEA 2027-01-21 16:04:00 → DEN 2027-01-21 19:45:00; nonstop; 161 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $290.00

Delta Air Lines DL2543: DEN 2027-01-17 18:35:00 → SEA 2027-01-17 20:46:00; nonstop; 191 minutes. Local airport times.
Delta Air Lines DL1358: SEA 2027-01-21 08:30:00 → DEN 2027-01-21 12:22:00; nonstop; 172 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $182.50

Frontier Airlines F92015 / F92407: DEN 2027-01-17 06:25:00 → SEA 2027-01-17 12:27:00; 1 stop(s) via LAS; 422 minutes. Local airport times.
- F92015: DEN 2027-01-17 06:25:00 → LAS 2027-01-17 07:37:00; layover at LAS: 112 minutes.
- F92407: LAS 2027-01-17 09:29:00 → SEA 2027-01-17 12:27:00.
Frontier Airlines F91916: SEA 2027-01-21 13:24:00 → DEN 2027-01-21 17:13:00; nonstop; 169 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $285.00

Southwest Airlines WN3148 / WN1586: DEN 2027-01-17 13:55:00 → SEA 2027-01-17 18:40:00; 1 stop(s) via SMF; 345 minutes. Local airport times.
- WN3148: DEN 2027-01-17 13:55:00 → SMF 2027-01-17 15:30:00; layover at SMF: 70 minutes.
- WN1586: SMF 2027-01-17 16:40:00 → SEA 2027-01-17 18:40:00.
Southwest Airlines WN2150: SEA 2027-01-21 09:25:00 → DEN 2027-01-21 13:00:00; nonstop; 155 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $285.00

Southwest Airlines WN1660 / WN948: DEN 2027-01-17 07:30:00 → SEA 2027-01-17 13:00:00; 1 stop(s) via LAS; 390 minutes. Local airport times.
- WN1660: DEN 2027-01-17 07:30:00 → LAS 2027-01-17 08:30:00; layover at LAS: 90 minutes.
- WN948: LAS 2027-01-17 10:00:00 → SEA 2027-01-17 13:00:00.
Southwest Airlines WN2150: SEA 2027-01-21 09:25:00 → DEN 2027-01-21 13:00:00; nonstop; 155 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $295.00

Alaska Airlines AS686 / AS3217: DEN 2027-01-17 07:40:00 → SEA 2027-01-17 12:09:00; 1 stop(s) via PDX; 329 minutes. Local airport times.
- AS686: DEN 2027-01-17 07:40:00 → PDX 2027-01-17 09:39:00; layover at PDX: 75 minutes.
- AS3217: PDX 2027-01-17 10:54:00 → SEA 2027-01-17 12:09:00.
Alaska Airlines AS421: SEA 2027-01-21 15:16:00 → DEN 2027-01-21 18:56:00; nonstop; 160 minutes. Local airport times.

2027-01-17 → 2027-01-21 · Axel-exclusive $310.00

United Airlines UA1086 / AC8810: DEN 2027-01-17 15:53:00 → SEA 2027-01-17 21:57:00; 1 stop(s) via YVR; 424 minutes. Local airport times.
- UA1086: DEN 2027-01-17 15:53:00 → YVR 2027-01-17 19:04:00; layover at YVR: 166 minutes.
- AC8810: YVR 2027-01-17 21:50:00 → SEA 2027-01-17 21:57:00.
United Airlines UA757: SEA 2027-01-21 16:04:00 → DEN 2027-01-21 19:45:00; nonstop; 161 minutes. Local airport times.

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