Austin (AUS) to Seattle (SEA) · Dec 16, 2026 · return Dec 18, 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.

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights: the lowest 3★, 4★, 5★ stay totals among the city's featured hotels, Axel's price for 2 adults in 1 room, each opening that hotel's page for those dates with the rooms and the booking link.

• Hotels in Seattle for these nights (Dec 16–18, 2026 · 2 nights · 2 adults, 1 room): 3★ Staypineapple, Hotel FIVE, Downtown Seattle, $235 total · 4★ Mayflower Park Hotel, $238 total · 5★ Fairmont Olympic Hotel, $484 total

All hotels in Seattle

Route overview: Austin to Seattle (SEA) flight deals

2026-12-16 → 2026-12-18 · Axel-exclusive $387.75

• Southwest Airlines WN425: AUS 2026-12-16 15:55:00 → SEA 2026-12-16 18:35:00; nonstop; 280 minutes. Local airport times.
• Southwest Airlines WN4519: SEA 2026-12-18 09:10:00 → AUS 2026-12-18 15:10:00; nonstop; 240 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $399.50

• Alaska Airlines AS414: AUS 2026-12-16 17:52:00 → SEA 2026-12-16 20:33:00; nonstop; 281 minutes. Local airport times.
• Alaska Airlines AS375: SEA 2026-12-18 17:10:00 → AUS 2026-12-18 23:14:00; nonstop; 244 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $423.00

• Delta Air Lines DL780: AUS 2026-12-16 06:08:00 → SEA 2026-12-16 09:00:00; nonstop; 292 minutes. Local airport times.
• Delta Air Lines DL848: SEA 2026-12-18 17:45:00 → AUS 2026-12-18 23:54:00; nonstop; 249 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $387.75

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

2026-12-16 → 2026-12-18 · Axel-exclusive $399.50

• United Airlines UA2177 / UA2192: AUS 2026-12-16 07:00:00 → SEA 2026-12-16 12:18:00; 1 stop(s) via SFO; 438 minutes. Local airport times.
  • UA2177: AUS 2026-12-16 07:00:00 → SFO 2026-12-16 09:05:00; layover at SFO: 60 minutes.
  • UA2192: SFO 2026-12-16 10:05:00 → SEA 2026-12-16 12:18:00.
• United Airlines UA2211 / UA2083: SEA 2026-12-18 23:59:00 → AUS 2026-12-19 08:37:00; 1 stop(s) via IAH; 398 minutes. Local airport times.
  • UA2211: SEA 2026-12-18 23:59:00 → IAH 2026-12-19 06:13:00; layover at IAH: 79 minutes.
  • UA2083: IAH 2026-12-19 07:32:00 → AUS 2026-12-19 08:37:00.

2026-12-16 → 2026-12-18 · Axel-exclusive $387.75

• Southwest Airlines WN2955: AUS 2026-12-16 19:50:00 → SEA 2026-12-16 22:35:00; nonstop; 285 minutes. Local airport times.
• Southwest Airlines WN4519: SEA 2026-12-18 09:10:00 → AUS 2026-12-18 15:10:00; nonstop; 240 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $399.50

• Alaska Airlines AS224: AUS 2026-12-16 08:30:00 → SEA 2026-12-16 11:08:00; nonstop; 278 minutes. Local airport times.
• Alaska Airlines AS375: SEA 2026-12-18 17:10:00 → AUS 2026-12-18 23:14:00; nonstop; 244 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $423.00

• Delta Air Lines DL396: AUS 2026-12-16 14:17:00 → SEA 2026-12-16 17:03:00; nonstop; 286 minutes. Local airport times.
• Delta Air Lines DL848: SEA 2026-12-18 17:45:00 → AUS 2026-12-18 23:54:00; nonstop; 249 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $377.75

• Southwest Airlines WN4794 / WN1586: AUS 2026-12-16 13:35:00 → SEA 2026-12-16 18:40:00; 1 stop(s) via SMF; 425 minutes. Local airport times.
  • WN4794: AUS 2026-12-16 13:35:00 → SMF 2026-12-16 15:20:00; layover at SMF: 80 minutes.
  • WN1586: SMF 2026-12-16 16:40:00 → SEA 2026-12-16 18:40:00.
• Southwest Airlines WN4519: SEA 2026-12-18 09:10:00 → AUS 2026-12-18 15:10:00; nonstop; 240 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $387.75

• American Airlines AA1421 / AS612: AUS 2026-12-16 18:02:00 → SEA 2026-12-16 23:15:00; 1 stop(s) via PHX; 433 minutes. Local airport times.
  • AA1421: AUS 2026-12-16 18:02:00 → PHX 2026-12-16 19:40:00; layover at PHX: 78 minutes.
  • AS612: PHX 2026-12-16 20:58:00 → SEA 2026-12-16 23:15:00.
• American Airlines AA2073 / AA1805: SEA 2026-12-18 15:00:00 → AUS 2026-12-18 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
  • AA2073: SEA 2026-12-18 15:00:00 → PHX 2026-12-18 18:52:00; layover at PHX: 110 minutes.
  • AA1805: PHX 2026-12-18 20:42:00 → AUS 2026-12-18 23:59:00.

2026-12-16 → 2026-12-18 · Axel-exclusive $389.50

• Alaska Airlines AS541 / AS3217: AUS 2026-12-16 07:15:00 → SEA 2026-12-16 12:09:00; 1 stop(s) via PDX; 414 minutes. Local airport times.
  • AS541: AUS 2026-12-16 07:15:00 → PDX 2026-12-16 09:46:00; layover at PDX: 68 minutes.
  • AS3217: PDX 2026-12-16 10:54:00 → SEA 2026-12-16 12:09:00.
• Alaska Airlines AS375: SEA 2026-12-18 17:10:00 → AUS 2026-12-18 23:14:00; nonstop; 244 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $409.50

• Delta Air Lines DL396: AUS 2026-12-16 11:02:00 → SEA 2026-12-16 13:56:00; nonstop; 294 minutes. Local airport times.
• Delta Air Lines DL2914 / DL622: SEA 2026-12-18 12:31:00 → AUS 2026-12-18 21:18:00; 1 stop(s) via LAX; 407 minutes. Local airport times.
  • DL2914: SEA 2026-12-18 12:31:00 → LAX 2026-12-18 15:13:00; layover at LAX: 67 minutes.
  • DL622: LAX 2026-12-18 16:20:00 → AUS 2026-12-18 21:18:00.

Explore this route

• All dates for this route
• Dec 15, 2026 · Return options
• Dec 17, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Austin (AUS) to Seattle (SEA) · Dec 16, 2026 · return Dec 18, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Seattle for exactly those nights: the lowest 3★, 4★ and 5★ stay totals for 2 adults in 1 room, each linking to that hotel's page for those dates.
• Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Austin to Seattle (SEA) flight deals · Flight search guide.
• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

Feedback (optional): Missing info · Axel issue