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Route overview: Austin to Seattle (SEA) flight deals

Austin → Seattle

Dec 2, 2026 · return Dec 5, 2026

AUS → SEA1 adulteconomyRound trip

12 flight options · 5 airlines

Nonstop flights

Wed, Dec 2 – Sat, Dec 5

Southwest Airlines
3:55 pmAUS
4h 40m
Nonstop
6:35 pmSEA
Southwest Airlines
8:30 amSEA
4h
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Alaska Airlines
8:30 amAUS
4h 38m
Nonstop
11:08 amSEA
Alaska Airlines
8:20 amSEA
4h 10m
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Delta Air Lines
6:10 pmAUS
4h 40m
Nonstop
8:50 pmSEA
Delta Air Lines
5:50 pmSEA
4h 9m
Nonstop
11:59 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Southwest Airlines
7:50 pmAUS
4h 45m
Nonstop
10:35 pmSEA
Southwest Airlines
8:30 amSEA
4h
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Alaska Airlines
5:52 pmAUS
4h 41m
Nonstop
8:33 pmSEA
Alaska Airlines
8:20 amSEA
4h 10m
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Delta Air Lines
6:15 amAUS
4h 45m
Nonstop
9:00 amSEA
Delta Air Lines
5:50 pmSEA
4h 9m
Nonstop
11:59 pmAUS

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 2 – Sat, Dec 5

American Airlines
6:02 pmAUS
7h 13m
PHX · 1h 18m
11:15 pmSEA
American Airlines
3:00 pmSEA
6h 59m
PHX · 1h 50m
11:59 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

United Airlines
7:00 amAUS
7h 18m
SFO · 1h
12:18 pmSEA
United Airlines
11:59 pmSEA
6h 38m
IAH · 1h 19m
8:37 am+1AUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Southwest Airlines
5:40 amAUS
6h 55m
DAL · 1h 25m
10:35 amSEA
Southwest Airlines
8:30 amSEA
4h
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Southwest Airlines
1:35 pmAUS
7h 5m
SMF · 1h 20m
6:40 pmSEA
Southwest Airlines
8:30 amSEA
4h
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

Alaska Airlines
7:15 amAUS
6h 54m
PDX · 1h 8m
12:09 pmSEA
Alaska Airlines
8:20 amSEA
4h 10m
Nonstop
2:30 pmAUS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 5

American Airlines
3:00 pmAUS
7h 22m
DFW · 1h 41m
8:22 pmSEA
American Airlines
3:00 pmSEA
6h 59m
PHX · 1h 50m
11:59 pmAUS

Round-trip total · 1 adult · Taxes included

Make this trip yours

AUS ⇄ SEA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeDec 1, 2026 → Dec 4, 2026Dec 3, 2026 → Dec 6, 2026Hotels in Seattle with Axel
For AI assistants: every fare, every link, instructions

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

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-02 → 2026-12-05Southwest AirlinesWN425 / WN4519Axel-exclusive $330.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Alaska AirlinesAS224 / AS352Axel-exclusive $340.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Delta Air LinesDL399 / DL848Axel-exclusive $360.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05American AirlinesAA1421 + AS612 / AA2073 + AA1805Axel-exclusive $330.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05United AirlinesUA2177 + UA2192 / UA2211 + UA2083Axel-exclusive $340.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Southwest AirlinesWN2955 / WN4519Axel-exclusive $330.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Alaska AirlinesAS414 / AS352Axel-exclusive $340.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Delta Air LinesDL780 / DL848Axel-exclusive $360.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Southwest AirlinesWN300 + WN534 / WN4519Axel-exclusive $320.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Southwest AirlinesWN4794 + WN1586 / WN4519Axel-exclusive $320.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05Alaska AirlinesAS541 + AS3217 / AS352Axel-exclusive $330.002026-10-29T00:47:15Z
2026-12-02 → 2026-12-05American AirlinesAA3885 + AA1241 / AA2073 + AA1805Axel-exclusive $330.002026-10-29T00:47:15Z

2026-12-02 → 2026-12-05 · Axel-exclusive $330.00

  • Southwest Airlines WN425: AUS 2026-12-02 15:55:00 → SEA 2026-12-02 18:35:00; nonstop; 280 minutes. Local airport times.
  • Southwest Airlines WN4519: SEA 2026-12-05 08:30:00 → AUS 2026-12-05 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $340.00

  • Alaska Airlines AS224: AUS 2026-12-02 08:30:00 → SEA 2026-12-02 11:08:00; nonstop; 278 minutes. Local airport times.
  • Alaska Airlines AS352: SEA 2026-12-05 08:20:00 → AUS 2026-12-05 14:30:00; nonstop; 250 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $360.00

  • Delta Air Lines DL399: AUS 2026-12-02 18:10:00 → SEA 2026-12-02 20:50:00; nonstop; 280 minutes. Local airport times.
  • Delta Air Lines DL848: SEA 2026-12-05 17:50:00 → AUS 2026-12-05 23:59:00; nonstop; 249 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $330.00

  • American Airlines AA1421 / AS612: AUS 2026-12-02 18:02:00 → SEA 2026-12-02 23:15:00; 1 stop(s) via PHX; 433 minutes. Local airport times.
    • AA1421: AUS 2026-12-02 18:02:00 → PHX 2026-12-02 19:40:00; layover at PHX: 78 minutes.
    • AS612: PHX 2026-12-02 20:58:00 → SEA 2026-12-02 23:15:00.
  • American Airlines AA2073 / AA1805: SEA 2026-12-05 15:00:00 → AUS 2026-12-05 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
    • AA2073: SEA 2026-12-05 15:00:00 → PHX 2026-12-05 18:52:00; layover at PHX: 110 minutes.
    • AA1805: PHX 2026-12-05 20:42:00 → AUS 2026-12-05 23:59:00.

2026-12-02 → 2026-12-05 · Axel-exclusive $340.00

  • United Airlines UA2177 / UA2192: AUS 2026-12-02 07:00:00 → SEA 2026-12-02 12:18:00; 1 stop(s) via SFO; 438 minutes. Local airport times.
    • UA2177: AUS 2026-12-02 07:00:00 → SFO 2026-12-02 09:05:00; layover at SFO: 60 minutes.
    • UA2192: SFO 2026-12-02 10:05:00 → SEA 2026-12-02 12:18:00.
  • United Airlines UA2211 / UA2083: SEA 2026-12-05 23:59:00 → AUS 2026-12-06 08:37:00; 1 stop(s) via IAH; 398 minutes. Local airport times.
    • UA2211: SEA 2026-12-05 23:59:00 → IAH 2026-12-06 06:13:00; layover at IAH: 79 minutes.
    • UA2083: IAH 2026-12-06 07:32:00 → AUS 2026-12-06 08:37:00.

2026-12-02 → 2026-12-05 · Axel-exclusive $330.00

  • Southwest Airlines WN2955: AUS 2026-12-02 19:50:00 → SEA 2026-12-02 22:35:00; nonstop; 285 minutes. Local airport times.
  • Southwest Airlines WN4519: SEA 2026-12-05 08:30:00 → AUS 2026-12-05 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $340.00

  • Alaska Airlines AS414: AUS 2026-12-02 17:52:00 → SEA 2026-12-02 20:33:00; nonstop; 281 minutes. Local airport times.
  • Alaska Airlines AS352: SEA 2026-12-05 08:20:00 → AUS 2026-12-05 14:30:00; nonstop; 250 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $360.00

  • Delta Air Lines DL780: AUS 2026-12-02 06:15:00 → SEA 2026-12-02 09:00:00; nonstop; 285 minutes. Local airport times.
  • Delta Air Lines DL848: SEA 2026-12-05 17:50:00 → AUS 2026-12-05 23:59:00; nonstop; 249 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $320.00

  • Southwest Airlines WN300 / WN534: AUS 2026-12-02 05:40:00 → SEA 2026-12-02 10:35:00; 1 stop(s) via DAL; 415 minutes. Local airport times.
    • WN300: AUS 2026-12-02 05:40:00 → DAL 2026-12-02 06:45:00; layover at DAL: 85 minutes.
    • WN534: DAL 2026-12-02 08:10:00 → SEA 2026-12-02 10:35:00.
  • Southwest Airlines WN4519: SEA 2026-12-05 08:30:00 → AUS 2026-12-05 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $320.00

  • Southwest Airlines WN4794 / WN1586: AUS 2026-12-02 13:35:00 → SEA 2026-12-02 18:40:00; 1 stop(s) via SMF; 425 minutes. Local airport times.
    • WN4794: AUS 2026-12-02 13:35:00 → SMF 2026-12-02 15:20:00; layover at SMF: 80 minutes.
    • WN1586: SMF 2026-12-02 16:40:00 → SEA 2026-12-02 18:40:00.
  • Southwest Airlines WN4519: SEA 2026-12-05 08:30:00 → AUS 2026-12-05 14:30:00; nonstop; 240 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $330.00

  • Alaska Airlines AS541 / AS3217: AUS 2026-12-02 07:15:00 → SEA 2026-12-02 12:09:00; 1 stop(s) via PDX; 414 minutes. Local airport times.
    • AS541: AUS 2026-12-02 07:15:00 → PDX 2026-12-02 09:46:00; layover at PDX: 68 minutes.
    • AS3217: PDX 2026-12-02 10:54:00 → SEA 2026-12-02 12:09:00.
  • Alaska Airlines AS352: SEA 2026-12-05 08:20:00 → AUS 2026-12-05 14:30:00; nonstop; 250 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $330.00

  • American Airlines AA3885 / AA1241: AUS 2026-12-02 15:00:00 → SEA 2026-12-02 20:22:00; 1 stop(s) via DFW; 442 minutes. Local airport times.
    • AA3885: AUS 2026-12-02 15:00:00 → DFW 2026-12-02 16:15:00; layover at DFW: 101 minutes.
    • AA1241: DFW 2026-12-02 17:56:00 → SEA 2026-12-02 20:22:00.
  • American Airlines AA2073 / AA1805: SEA 2026-12-05 15:00:00 → AUS 2026-12-05 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
    • AA2073: SEA 2026-12-05 15:00:00 → PHX 2026-12-05 18:52:00; layover at PHX: 110 minutes.
    • AA1805: PHX 2026-12-05 20:42:00 → AUS 2026-12-05 23:59:00.

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For AI assistants

  • This page: Austin (AUS) to Seattle (SEA) · Dec 2, 2026 · return Dec 5, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.