Austin (AUS) to Seattle (SEA) · Dec 10, 2026 · return Dec 20, 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: Austin to Seattle (SEA) flight deals

2026-12-10 → 2026-12-20 · Axel-exclusive $387.75

• Southwest Airlines WN425: AUS 2026-12-10 15:55:00 → SEA 2026-12-10 18:35:00; nonstop; 280 minutes. Local airport times.
• Southwest Airlines WN4519: SEA 2026-12-20 08:30:00 → AUS 2026-12-20 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $399.50

• Alaska Airlines AS339: AUS 2026-12-10 19:09:00 → SEA 2026-12-10 21:56:00; nonstop; 287 minutes. Local airport times.
• Alaska Airlines AS375: SEA 2026-12-20 17:10:00 → AUS 2026-12-20 23:14:00; nonstop; 244 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $423.00

• Delta Air Lines DL780: AUS 2026-12-10 06:08:00 → SEA 2026-12-10 09:00:00; nonstop; 292 minutes. Local airport times.
• Delta Air Lines DL739: SEA 2026-12-20 10:42:00 → AUS 2026-12-20 16:58:00; nonstop; 256 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $387.75

• American Airlines AA3885 / AA1241: AUS 2026-12-10 15:00:00 → SEA 2026-12-10 20:22:00; 1 stop(s) via DFW; 442 minutes. Local airport times.
  • AA3885: AUS 2026-12-10 15:00:00 → DFW 2026-12-10 16:15:00; layover at DFW: 101 minutes.
  • AA1241: DFW 2026-12-10 17:56:00 → SEA 2026-12-10 20:22:00.
• American Airlines AA2073 / AA1805: SEA 2026-12-20 15:00:00 → AUS 2026-12-20 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
  • AA2073: SEA 2026-12-20 15:00:00 → PHX 2026-12-20 18:52:00; layover at PHX: 110 minutes.
  • AA1805: PHX 2026-12-20 20:42:00 → AUS 2026-12-20 23:59:00.

2026-12-10 → 2026-12-20 · Axel-exclusive $399.50

• United Airlines UA2177 / UA2192: AUS 2026-12-10 07:00:00 → SEA 2026-12-10 12:18:00; 1 stop(s) via SFO; 438 minutes. Local airport times.
  • UA2177: AUS 2026-12-10 07:00:00 → SFO 2026-12-10 09:05:00; layover at SFO: 60 minutes.
  • UA2192: SFO 2026-12-10 10:05:00 → SEA 2026-12-10 12:18:00.
• United Airlines UA2211 / UA2083: SEA 2026-12-20 23:59:00 → AUS 2026-12-21 08:37:00; 1 stop(s) via IAH; 398 minutes. Local airport times.
  • UA2211: SEA 2026-12-20 23:59:00 → IAH 2026-12-21 06:13:00; layover at IAH: 79 minutes.
  • UA2083: IAH 2026-12-21 07:32:00 → AUS 2026-12-21 08:37:00.

2026-12-10 → 2026-12-20 · Axel-exclusive $387.75

• Southwest Airlines WN2955: AUS 2026-12-10 19:50:00 → SEA 2026-12-10 22:35:00; nonstop; 285 minutes. Local airport times.
• Southwest Airlines WN4519: SEA 2026-12-20 08:30:00 → AUS 2026-12-20 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $399.50

• Alaska Airlines AS352: AUS 2026-12-10 15:43:00 → SEA 2026-12-10 18:30:00; nonstop; 287 minutes. Local airport times.
• Alaska Airlines AS375: SEA 2026-12-20 17:10:00 → AUS 2026-12-20 23:14:00; nonstop; 244 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $423.00

• Delta Air Lines DL831: AUS 2026-12-10 18:06:00 → SEA 2026-12-10 20:49:00; nonstop; 283 minutes. Local airport times.
• Delta Air Lines DL739: SEA 2026-12-20 10:42:00 → AUS 2026-12-20 16:58:00; nonstop; 256 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $377.75

• Southwest Airlines WN300 / WN534: AUS 2026-12-10 05:40:00 → SEA 2026-12-10 10:35:00; 1 stop(s) via DAL; 415 minutes. Local airport times.
  • WN300: AUS 2026-12-10 05:40:00 → DAL 2026-12-10 06:45:00; layover at DAL: 85 minutes.
  • WN534: DAL 2026-12-10 08:10:00 → SEA 2026-12-10 10:35:00.
• Southwest Airlines WN4519: SEA 2026-12-20 08:30:00 → AUS 2026-12-20 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $377.75

• Southwest Airlines WN4794 / WN1586: AUS 2026-12-10 13:35:00 → SEA 2026-12-10 18:40:00; 1 stop(s) via SMF; 425 minutes. Local airport times.
  • WN4794: AUS 2026-12-10 13:35:00 → SMF 2026-12-10 15:20:00; layover at SMF: 80 minutes.
  • WN1586: SMF 2026-12-10 16:40:00 → SEA 2026-12-10 18:40:00.
• Southwest Airlines WN4519: SEA 2026-12-20 08:30:00 → AUS 2026-12-20 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-10 → 2026-12-20 · Axel-exclusive $387.75

• American Airlines AA1421 / AS612: AUS 2026-12-10 18:02:00 → SEA 2026-12-10 23:15:00; 1 stop(s) via PHX; 433 minutes. Local airport times.
  • AA1421: AUS 2026-12-10 18:02:00 → PHX 2026-12-10 19:40:00; layover at PHX: 78 minutes.
  • AS612: PHX 2026-12-10 20:58:00 → SEA 2026-12-10 23:15:00.
• American Airlines AA2073 / AA1805: SEA 2026-12-20 15:00:00 → AUS 2026-12-20 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
  • AA2073: SEA 2026-12-20 15:00:00 → PHX 2026-12-20 18:52:00; layover at PHX: 110 minutes.
  • AA1805: PHX 2026-12-20 20:42:00 → AUS 2026-12-20 23:59:00.

2026-12-10 → 2026-12-20 · Axel-exclusive $389.50

• Alaska Airlines AS541 / AS3217: AUS 2026-12-10 07:15:00 → SEA 2026-12-10 12:09:00; 1 stop(s) via PDX; 414 minutes. Local airport times.
  • AS541: AUS 2026-12-10 07:15:00 → PDX 2026-12-10 09:46:00; layover at PDX: 68 minutes.
  • AS3217: PDX 2026-12-10 10:54:00 → SEA 2026-12-10 12:09:00.
• Alaska Airlines AS375: SEA 2026-12-20 17:10:00 → AUS 2026-12-20 23:14:00; nonstop; 244 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 9, 2026 · Return options
• Dec 11, 2026 · Return options
• Hotels in Seattle with Axel

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