Travel with Axel,
get the best price.

Route overview: Seattle to Austin (AUS) flight deals

Seattle → Austin

Jan 26, 2027 · return Feb 9, 2027

SEA → AUS1 adulteconomyRound trip

11 flight options · 5 airlines

Nonstop flights

Tue, Jan 26 – Tue, Feb 9

Southwest Airlines
9:10 amSEA
4h
Nonstop
3:10 pmAUS
Southwest Airlines
3:55 pmAUS
4h 40m
Nonstop
6:35 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Alaska Airlines
5:10 pmSEA
4h 4m
Nonstop
11:14 pmAUS
Alaska Airlines
8:30 amAUS
4h 47m
Nonstop
11:17 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Delta Air Lines
5:45 pmSEA
4h 9m
Nonstop
11:54 pmAUS
Delta Air Lines
2:17 pmAUS
4h 46m
Nonstop
5:03 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Alaska Airlines
11:47 amSEA
4h 13m
Nonstop
6:00 pmAUS
Alaska Airlines
8:30 amAUS
4h 47m
Nonstop
11:17 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Delta Air Lines
11:05 amSEA
4h 6m
Nonstop
5:11 pmAUS
Delta Air Lines
2:17 pmAUS
4h 46m
Nonstop
5:03 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Tue, Jan 26 – Tue, Feb 9

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

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

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

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Alaska Airlines
12:33 amSEA
6h 13m
DFW · 1h 5m
8:46 amAUS
Alaska Airlines
8:30 amAUS
4h 47m
Nonstop
11:17 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Delta Air Lines
1:25 pmSEA
6h 17m
SLC · 1h 29m
9:42 pmAUS
Delta Air Lines
2:17 pmAUS
4h 46m
Nonstop
5:03 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Delta Air Lines
12:31 pmSEA
6h 47m
LAX · 1h 7m
9:18 pmAUS
Delta Air Lines
2:17 pmAUS
4h 46m
Nonstop
5:03 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Jan 26 – Tue, Feb 9

Delta Air Lines
11:45 amSEA
6h 59m
BZN · 1h 55m
8:44 pmAUS
Delta Air Lines
2:17 pmAUS
4h 46m
Nonstop
5:03 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SEA ⇄ AUS

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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

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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-26 → 2027-02-09Southwest AirlinesWN4519 / WN425Axel-exclusive $323.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Alaska AirlinesAS375 / AS224Axel-exclusive $342.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Delta Air LinesDL848 / DL396Axel-exclusive $351.502026-10-29T01:14:23Z
2027-01-26 → 2027-02-09American AirlinesAA2073 + AA1805 / AA1421 + AS612Axel-exclusive $323.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09United AirlinesUA2211 + UA2083 / UA2177 + UA2192Axel-exclusive $332.502026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Alaska AirlinesAS374 / AS224Axel-exclusive $342.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Delta Air LinesDL831 / DL396Axel-exclusive $351.502026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Alaska AirlinesAS424 + AA6243 / AS224Axel-exclusive $327.752026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Delta Air LinesDL1120 + DL2728 / DL396Axel-exclusive $342.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Delta Air LinesDL2914 + DL622 / DL396Axel-exclusive $342.002026-10-29T01:14:23Z
2027-01-26 → 2027-02-09Delta Air LinesDL4104 + DL3714 / DL396Axel-exclusive $342.002026-10-29T01:14:23Z

Route overview: Seattle to Austin (AUS) flight deals

2027-01-26 → 2027-02-09 · Axel-exclusive $323.00

  • Southwest Airlines WN4519: SEA 2027-01-26 09:10:00 → AUS 2027-01-26 15:10:00; nonstop; 240 minutes. Local airport times.
  • Southwest Airlines WN425: AUS 2027-02-09 15:55:00 → SEA 2027-02-09 18:35:00; nonstop; 280 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $342.00

  • Alaska Airlines AS375: SEA 2027-01-26 17:10:00 → AUS 2027-01-26 23:14:00; nonstop; 244 minutes. Local airport times.
  • Alaska Airlines AS224: AUS 2027-02-09 08:30:00 → SEA 2027-02-09 11:17:00; nonstop; 287 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $351.50

  • Delta Air Lines DL848: SEA 2027-01-26 17:45:00 → AUS 2027-01-26 23:54:00; nonstop; 249 minutes. Local airport times.
  • Delta Air Lines DL396: AUS 2027-02-09 14:17:00 → SEA 2027-02-09 17:03:00; nonstop; 286 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $323.00

  • American Airlines AA2073 / AA1805: SEA 2027-01-26 15:00:00 → AUS 2027-01-26 23:59:00; 1 stop(s) via PHX; 419 minutes. Local airport times.
    • AA2073: SEA 2027-01-26 15:00:00 → PHX 2027-01-26 18:52:00; layover at PHX: 110 minutes.
    • AA1805: PHX 2027-01-26 20:42:00 → AUS 2027-01-26 23:59:00.
  • American Airlines AA1421 / AS612: AUS 2027-02-09 18:02:00 → SEA 2027-02-09 23:15:00; 1 stop(s) via PHX; 433 minutes. Local airport times.
    • AA1421: AUS 2027-02-09 18:02:00 → PHX 2027-02-09 19:40:00; layover at PHX: 78 minutes.
    • AS612: PHX 2027-02-09 20:58:00 → SEA 2027-02-09 23:15:00.

2027-01-26 → 2027-02-09 · Axel-exclusive $332.50

  • United Airlines UA2211 / UA2083: SEA 2027-01-26 23:59:00 → AUS 2027-01-27 08:37:00; 1 stop(s) via IAH; 398 minutes. Local airport times.
    • UA2211: SEA 2027-01-26 23:59:00 → IAH 2027-01-27 06:13:00; layover at IAH: 79 minutes.
    • UA2083: IAH 2027-01-27 07:32:00 → AUS 2027-01-27 08:37:00.
  • United Airlines UA2177 / UA2192: AUS 2027-02-09 07:00:00 → SEA 2027-02-09 12:18:00; 1 stop(s) via SFO; 438 minutes. Local airport times.
    • UA2177: AUS 2027-02-09 07:00:00 → SFO 2027-02-09 09:05:00; layover at SFO: 60 minutes.
    • UA2192: SFO 2027-02-09 10:05:00 → SEA 2027-02-09 12:18:00.

2027-01-26 → 2027-02-09 · Axel-exclusive $342.00

  • Alaska Airlines AS374: SEA 2027-01-26 11:47:00 → AUS 2027-01-26 18:00:00; nonstop; 253 minutes. Local airport times.
  • Alaska Airlines AS224: AUS 2027-02-09 08:30:00 → SEA 2027-02-09 11:17:00; nonstop; 287 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $351.50

  • Delta Air Lines DL831: SEA 2027-01-26 11:05:00 → AUS 2027-01-26 17:11:00; nonstop; 246 minutes. Local airport times.
  • Delta Air Lines DL396: AUS 2027-02-09 14:17:00 → SEA 2027-02-09 17:03:00; nonstop; 286 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $327.75

  • Alaska Airlines AS424 / AA6243: SEA 2027-01-26 00:33:00 → AUS 2027-01-26 08:46:00; 1 stop(s) via DFW; 373 minutes. Local airport times.
    • AS424: SEA 2027-01-26 00:33:00 → DFW 2027-01-26 06:25:00; layover at DFW: 65 minutes.
    • AA6243: DFW 2027-01-26 07:30:00 → AUS 2027-01-26 08:46:00.
  • Alaska Airlines AS224: AUS 2027-02-09 08:30:00 → SEA 2027-02-09 11:17:00; nonstop; 287 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $342.00

  • Delta Air Lines DL1120 / DL2728: SEA 2027-01-26 13:25:00 → AUS 2027-01-26 21:42:00; 1 stop(s) via SLC; 377 minutes. Local airport times.
    • DL1120: SEA 2027-01-26 13:25:00 → SLC 2027-01-26 16:26:00; layover at SLC: 89 minutes.
    • DL2728: SLC 2027-01-26 17:55:00 → AUS 2027-01-26 21:42:00.
  • Delta Air Lines DL396: AUS 2027-02-09 14:17:00 → SEA 2027-02-09 17:03:00; nonstop; 286 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $342.00

  • Delta Air Lines DL2914 / DL622: SEA 2027-01-26 12:31:00 → AUS 2027-01-26 21:18:00; 1 stop(s) via LAX; 407 minutes. Local airport times.
    • DL2914: SEA 2027-01-26 12:31:00 → LAX 2027-01-26 15:13:00; layover at LAX: 67 minutes.
    • DL622: LAX 2027-01-26 16:20:00 → AUS 2027-01-26 21:18:00.
  • Delta Air Lines DL396: AUS 2027-02-09 14:17:00 → SEA 2027-02-09 17:03:00; nonstop; 286 minutes. Local airport times.

2027-01-26 → 2027-02-09 · Axel-exclusive $342.00

  • Delta Air Lines DL4104 / DL3714: SEA 2027-01-26 11:45:00 → AUS 2027-01-26 20:44:00; 1 stop(s) via BZN; 419 minutes. Local airport times.
    • DL4104: SEA 2027-01-26 11:45:00 → BZN 2027-01-26 14:29:00; layover at BZN: 115 minutes.
    • DL3714: BZN 2027-01-26 16:24:00 → AUS 2027-01-26 20:44:00.
  • Delta Air Lines DL396: AUS 2027-02-09 14:17:00 → SEA 2027-02-09 17:03:00; nonstop; 286 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to Austin (AUS) · Jan 26, 2027 · return Feb 9, 2027: 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 Seattle to Austin (AUS) 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.