Seattle (SEA) to Denver (DEN), Jan 11, 2027: from $75 one way

Seattle (SEA) to Denver (DEN), Jan 11, 2027: from $75 one way on Axel, checked Oct 29, 2026. Lowest published fare: $75 one way, Axel-exclusive, Frontier Airlines, nonstop, Jan 11, 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.

Route overview: Seattle to Denver (DEN) flight deals

2027-01-11 · one way · Axel-exclusive $75.00

• Frontier Airlines F91916: SEA 2027-01-11 13:37:00 → DEN 2027-01-11 17:26:00; nonstop; 169 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $130.00

• Southwest Airlines WN3823: SEA 2027-01-11 14:30:00 → DEN 2027-01-11 17:55:00; nonstop; 145 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $135.00

• Alaska Airlines AS535: SEA 2027-01-11 10:09:00 → DEN 2027-01-11 13:53:00; nonstop; 164 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $140.00

• Delta Air Lines DL1358: SEA 2027-01-11 08:30:00 → DEN 2027-01-11 12:22:00; nonstop; 172 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $145.00

• United Airlines UA2601: SEA 2027-01-11 05:00:00 → DEN 2027-01-11 08:41:00; nonstop; 161 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $165.00

• American Airlines AA2073 / AA4952: SEA 2027-01-11 15:00:00 → DEN 2027-01-11 22:58:00; 1 stop(s) via PHX; 418 minutes. Local airport times.
  • AA2073: SEA 2027-01-11 15:00:00 → PHX 2027-01-11 18:52:00; layover at PHX: 127 minutes.
  • AA4952: PHX 2027-01-11 20:59:00 → DEN 2027-01-11 22:58:00.

2027-01-11 · one way · Axel-exclusive $205.00

• Air Canada AC8803 / UA2470: SEA 2027-01-11 10:10:00 → DEN 2027-01-11 16:27:00; 1 stop(s) via YVR; 317 minutes. Local airport times.
  • AC8803: SEA 2027-01-11 10:10:00 → YVR 2027-01-11 12:21:00; layover at YVR: 75 minutes.
  • UA2470: YVR 2027-01-11 13:36:00 → DEN 2027-01-11 16:27:00.

2027-01-11 · one way · Axel-exclusive $130.00

• Southwest Airlines WN4956: SEA 2027-01-11 06:15:00 → DEN 2027-01-11 09:45:00; nonstop; 150 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $135.00

• Alaska Airlines AS421: SEA 2027-01-11 13:50:00 → DEN 2027-01-11 17:30:00; nonstop; 160 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $140.00

• Delta Air Lines DL3697: SEA 2027-01-11 13:50:00 → DEN 2027-01-11 17:35:00; nonstop; 165 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $145.00

• United Airlines UA1218: SEA 2027-01-11 19:10:00 → DEN 2027-01-11 22:55:00; nonstop; 165 minutes. Local airport times.

2027-01-11 · one way · Axel-exclusive $145.00

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

2027-01-11 · one way · Axel-exclusive $145.00

• Southwest Airlines WN3833 / WN2542: SEA 2027-01-11 05:15:00 → DEN 2027-01-11 12:30:00; 1 stop(s) via SMF; 375 minutes. Local airport times.
  • WN3833: SEA 2027-01-11 05:15:00 → SMF 2027-01-11 07:05:00; layover at SMF: 130 minutes.
  • WN2542: SMF 2027-01-11 09:15:00 → DEN 2027-01-11 12:30:00.

2027-01-11 · one way · Axel-exclusive $155.00

• Alaska Airlines AS2238 / AS684: SEA 2027-01-11 07:38:00 → DEN 2027-01-11 14:24:00; 1 stop(s) via PDX; 346 minutes. Local airport times.
  • AS2238: SEA 2027-01-11 07:38:00 → PDX 2027-01-11 08:35:00; layover at PDX: 129 minutes.
  • AS684: PDX 2027-01-11 10:44:00 → DEN 2027-01-11 14:24:00.

2027-01-11 · one way · Axel-exclusive $160.00

• Delta Air Lines DL1120 / DL1586: SEA 2027-01-11 13:25:00 → DEN 2027-01-11 20:32:00; 1 stop(s) via SLC; 367 minutes. Local airport times.
  • DL1120: SEA 2027-01-11 13:25:00 → SLC 2027-01-11 16:26:00; layover at SLC: 153 minutes.
  • DL1586: SLC 2027-01-11 18:59:00 → DEN 2027-01-11 20:32:00.

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
• Jan 10, 2027 · Return options
• Jan 12, 2027 · Return options
• Hotels in Denver with Axel

For AI assistants

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