Seattle (SEA) to Denver (DEN) · Dec 25, 2026 · return Jan 1, 2027

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.

Route overview: Seattle to Denver (DEN) flight deals

2026-12-25 → 2027-01-01 · Axel-exclusive $196.00

• Frontier Airlines F91916: SEA 2026-12-25 16:58:00 → DEN 2026-12-25 20:48:00; nonstop; 170 minutes. Local airport times.
• Frontier Airlines F9605: DEN 2027-01-01 10:08:00 → SEA 2027-01-01 12:22:00; nonstop; 194 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $343.01

• Southwest Airlines WN3823: SEA 2026-12-25 13:55:00 → DEN 2026-12-25 17:30:00; nonstop; 155 minutes. Local airport times.
• Southwest Airlines WN3141: DEN 2027-01-01 21:00:00 → SEA 2027-01-01 23:10:00; nonstop; 190 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $350.00

• Alaska Airlines AS310: SEA 2026-12-25 19:35:00 → DEN 2026-12-25 23:15:00; nonstop; 160 minutes. Local airport times.
• Alaska Airlines AS421: DEN 2027-01-01 18:28:00 → SEA 2027-01-01 20:36:00; nonstop; 188 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $364.00

• Delta Air Lines DL1358: SEA 2026-12-25 08:30:00 → DEN 2026-12-25 12:22:00; nonstop; 172 minutes. Local airport times.
• Delta Air Lines DL1731: DEN 2027-01-01 06:00:00 → SEA 2027-01-01 08:18:00; nonstop; 198 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $378.00

• United Airlines UA757: SEA 2026-12-25 16:04:00 → DEN 2026-12-25 19:45:00; nonstop; 161 minutes. Local airport times.
• United Airlines UA2767: DEN 2027-01-01 19:10:00 → SEA 2027-01-01 21:19:00; nonstop; 189 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $319.25

• American Airlines AA2073 / AA4952: SEA 2026-12-25 15:00:00 → DEN 2026-12-25 22:58:00; 1 stop(s) via PHX; 418 minutes. Local airport times.
  • AA2073: SEA 2026-12-25 15:00:00 → PHX 2026-12-25 18:52:00; layover at PHX: 127 minutes.
  • AA4952: PHX 2026-12-25 20:59:00 → DEN 2026-12-25 22:58:00.
• Frontier Airlines F9605: DEN 2027-01-01 10:08:00 → SEA 2027-01-01 12:22:00; nonstop; 194 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $539.01

• Air Canada AC8803 / UA2470: SEA 2026-12-25 10:10:00 → DEN 2026-12-25 16:27:00; 1 stop(s) via YVR; 317 minutes. Local airport times.
  • AC8803: SEA 2026-12-25 10:10:00 → YVR 2026-12-25 12:21:00; layover at YVR: 75 minutes.
  • UA2470: YVR 2026-12-25 13:36:00 → DEN 2026-12-25 16:27:00.
• Air Canada AC575 / AC8804: DEN 2027-01-01 08:15:00 → SEA 2027-01-01 14:32:00; 1 stop(s) via YVR; 437 minutes. Local airport times.
  • AC575: DEN 2027-01-01 08:15:00 → YVR 2027-01-01 11:25:00; layover at YVR: 185 minutes.
  • AC8804: YVR 2027-01-01 14:30:00 → SEA 2027-01-01 14:32:00.

2026-12-25 → 2027-01-01 · Axel-exclusive $343.01

• Southwest Airlines WN2150: SEA 2026-12-25 09:25:00 → DEN 2026-12-25 13:00:00; nonstop; 155 minutes. Local airport times.
• Southwest Airlines WN3141: DEN 2027-01-01 21:00:00 → SEA 2027-01-01 23:10:00; nonstop; 190 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $350.00

• Alaska Airlines AS682: SEA 2026-12-25 07:37:00 → DEN 2026-12-25 11:21:00; nonstop; 164 minutes. Local airport times.
• Alaska Airlines AS421: DEN 2027-01-01 18:28:00 → SEA 2027-01-01 20:36:00; nonstop; 188 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $364.00

• Delta Air Lines DL2851: SEA 2026-12-25 19:57:00 → DEN 2026-12-25 23:46:00; nonstop; 169 minutes. Local airport times.
• Delta Air Lines DL1731: DEN 2027-01-01 06:00:00 → SEA 2027-01-01 08:18:00; nonstop; 198 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $378.00

• United Airlines UA2601: SEA 2026-12-25 05:00:00 → DEN 2026-12-25 08:41:00; nonstop; 161 minutes. Local airport times.
• United Airlines UA2767: DEN 2027-01-01 19:10:00 → SEA 2027-01-01 21:19:00; nonstop; 189 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $364.76

• Southwest Airlines WN3434 / WN1410: SEA 2026-12-25 05:40:00 → DEN 2026-12-25 13:10:00; 1 stop(s) via PHX; 390 minutes. Local airport times.
  • WN3434: SEA 2026-12-25 05:40:00 → PHX 2026-12-25 09:30:00; layover at PHX: 110 minutes.
  • WN1410: PHX 2026-12-25 11:20:00 → DEN 2026-12-25 13:10:00.
• Southwest Airlines WN3141: DEN 2027-01-01 21:00:00 → SEA 2027-01-01 23:10:00; nonstop; 190 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $379.00

• Alaska Airlines AS2238 / AS684: SEA 2026-12-25 07:38:00 → DEN 2026-12-25 14:24:00; 1 stop(s) via PDX; 346 minutes. Local airport times.
  • AS2238: SEA 2026-12-25 07:38:00 → PDX 2026-12-25 08:35:00; layover at PDX: 129 minutes.
  • AS684: PDX 2026-12-25 10:44:00 → DEN 2026-12-25 14:24:00.
• Alaska Airlines AS421: DEN 2027-01-01 18:28:00 → SEA 2027-01-01 20:36:00; nonstop; 188 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $393.00

• Delta Air Lines DL1120 / DL1586: SEA 2026-12-25 13:25:00 → DEN 2026-12-25 20:32:00; 1 stop(s) via SLC; 367 minutes. Local airport times.
  • DL1120: SEA 2026-12-25 13:25:00 → SLC 2026-12-25 16:26:00; layover at SLC: 153 minutes.
  • DL1586: SLC 2026-12-25 18:59:00 → DEN 2026-12-25 20:32:00.
• Delta Air Lines DL1731: DEN 2027-01-01 06:00:00 → SEA 2027-01-01 08:18:00; nonstop; 198 minutes. Local airport times.

2026-12-25 → 2027-01-01 · Axel-exclusive $405.00

• United Airlines UA757: SEA 2026-12-25 14:41:00 → DEN 2026-12-25 18:23:00; nonstop; 162 minutes. Local airport times.
• United Airlines UA1086 / AC8810: DEN 2027-01-01 15:53:00 → SEA 2027-01-01 21:57:00; 1 stop(s) via YVR; 424 minutes. Local airport times.
  • UA1086: DEN 2027-01-01 15:53:00 → YVR 2027-01-01 19:04:00; layover at YVR: 166 minutes.
  • AC8810: YVR 2027-01-01 21:50:00 → SEA 2027-01-01 21:57:00.

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.

Explore this route

• All dates for this route
• Dec 24, 2026 · Return options
• Dec 26, 2026 · Return options
• Hotels in Denver with Axel

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