Travel with Axel,
get the best price.

San Francisco → Austin

Dec 13, 2026 · return Dec 20, 2026

SFO → AUS1 adulteconomyRound trip

11 flight options · 4 airlines

Nonstop flights

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
10:45 amSFO
3h 35m
Nonstop
4:20 pmAUS
Southwest Airlines
8:50 amAUS
4h
Nonstop
10:50 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Delta Air Lines
10:04 amSFO
3h 31m
Nonstop
3:35 pmAUS
Delta Air Lines
7:10 amAUS
3h 54m
Nonstop
9:04 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

United Airlines
6:25 pmSFO
3h 31m
Nonstop
11:56 pmAUS
United Airlines
8:01 pmAUS
3h 59m
Nonstop
10:00 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Delta Air Lines
5:59 pmSFO
3h 31m
Nonstop
11:30 pmAUS
Delta Air Lines
7:10 amAUS
3h 54m
Nonstop
9:04 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

United Airlines
4:30 pmSFO
3h 29m
Nonstop
9:59 pmAUS
United Airlines
8:01 pmAUS
3h 59m
Nonstop
10:00 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Sun, Dec 20

Frontier Airlines
11:23 amSFO
6h 3m
DEN · 1h 7m
7:26 pmAUS
Frontier Airlines
8:04 pmAUS
6h 39m
DEN · 1h 21m
12:43 am+1SFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
8:10 amSFO
3h 35m
Nonstop
1:45 pmAUS
Southwest Airlines
8:15 pmAUS
6h 10m
LAS · 1h 25m
12:25 am+1SFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
8:20 amSFO
6h
LAX · 1h 30m
4:20 pmAUS
Southwest Airlines
8:50 amAUS
4h
Nonstop
10:50 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
5:10 amSFO
5h 40m
LAS · 1h 25m
12:50 pmAUS
Southwest Airlines
8:50 amAUS
4h
Nonstop
10:50 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Delta Air Lines
2:30 pmSFO
3h 32m
Nonstop
8:02 pmAUS
Delta Air Lines
6:09 pmAUS
6h 20m
SLC · 1h 5m
10:29 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

United Airlines
9:22 pmSFO
5h 39m
LAX · 1h 7m
5:01 am+1AUS
United Airlines
8:01 pmAUS
3h 59m
Nonstop
10:00 pmSFO

Round-trip total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ 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

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-13 → 2026-12-20Southwest AirlinesWN4357 / WN426$376.002026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Delta Air LinesDL381 / DL381$387.752026-10-29T01:17:23Z
2026-12-13 → 2026-12-20United AirlinesUA2332 / UA2179$399.502026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Frontier AirlinesF93436 + F91816 / F91859 + F93439$235.002026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Delta Air LinesDL1077 / DL381$387.752026-10-29T01:17:23Z
2026-12-13 → 2026-12-20United AirlinesUA373 / UA2179$399.502026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Southwest AirlinesWN4357 / WN1314 + WN2085$355.752026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Southwest AirlinesWN3847 + WN3025 / WN426$361.002026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Southwest AirlinesWN4361 + WN2282 / WN426$361.002026-10-29T01:17:23Z
2026-12-13 → 2026-12-20Delta Air LinesDL381 / DL2581 + DL2762$370.882026-10-29T01:17:23Z
2026-12-13 → 2026-12-20United AirlinesUA2862 + UA1157 / UA2179$377.002026-10-29T01:17:23Z

2026-12-13 → 2026-12-20 · $376.00

  • Southwest Airlines WN4357: SFO 2026-12-13 10:45:00 → AUS 2026-12-13 16:20:00; nonstop; 215 minutes. Local airport times.
  • Southwest Airlines WN426: AUS 2026-12-20 08:50:00 → SFO 2026-12-20 10:50:00; nonstop; 240 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $387.75

  • Delta Air Lines DL381: SFO 2026-12-13 10:04:00 → AUS 2026-12-13 15:35:00; nonstop; 211 minutes. Local airport times.
  • Delta Air Lines DL381: AUS 2026-12-20 07:10:00 → SFO 2026-12-20 09:04:00; nonstop; 234 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $399.50

  • United Airlines UA2332: SFO 2026-12-13 18:25:00 → AUS 2026-12-13 23:56:00; nonstop; 211 minutes. Local airport times.
  • United Airlines UA2179: AUS 2026-12-20 20:01:00 → SFO 2026-12-20 22:00:00; nonstop; 239 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $235.00

  • Frontier Airlines F93436 / F91816: SFO 2026-12-13 11:23:00 → AUS 2026-12-13 19:26:00; 1 stop(s) via DEN; 363 minutes. Local airport times.
    • F93436: SFO 2026-12-13 11:23:00 → DEN 2026-12-13 15:07:00; layover at DEN: 67 minutes.
    • F91816: DEN 2026-12-13 16:14:00 → AUS 2026-12-13 19:26:00.
  • Frontier Airlines F91859 / F93439: AUS 2026-12-20 20:04:00 → SFO 2026-12-21 00:43:00; 1 stop(s) via DEN; 399 minutes. Local airport times.
    • F91859: AUS 2026-12-20 20:04:00 → DEN 2026-12-20 21:31:00; layover at DEN: 81 minutes.
    • F93439: DEN 2026-12-20 22:52:00 → SFO 2026-12-21 00:43:00.

2026-12-13 → 2026-12-20 · $387.75

  • Delta Air Lines DL1077: SFO 2026-12-13 17:59:00 → AUS 2026-12-13 23:30:00; nonstop; 211 minutes. Local airport times.
  • Delta Air Lines DL381: AUS 2026-12-20 07:10:00 → SFO 2026-12-20 09:04:00; nonstop; 234 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $399.50

  • United Airlines UA373: SFO 2026-12-13 16:30:00 → AUS 2026-12-13 21:59:00; nonstop; 209 minutes. Local airport times.
  • United Airlines UA2179: AUS 2026-12-20 20:01:00 → SFO 2026-12-20 22:00:00; nonstop; 239 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $355.75

  • Southwest Airlines WN4357: SFO 2026-12-13 08:10:00 → AUS 2026-12-13 13:45:00; nonstop; 215 minutes. Local airport times.
  • Southwest Airlines WN1314 / WN2085: AUS 2026-12-20 20:15:00 → SFO 2026-12-21 00:25:00; 1 stop(s) via LAS; 370 minutes. Local airport times.
    • WN1314: AUS 2026-12-20 20:15:00 → LAS 2026-12-20 21:15:00; layover at LAS: 85 minutes.
    • WN2085: LAS 2026-12-20 22:40:00 → SFO 2026-12-21 00:25:00.

2026-12-13 → 2026-12-20 · $361.00

  • Southwest Airlines WN3847 / WN3025: SFO 2026-12-13 08:20:00 → AUS 2026-12-13 16:20:00; 1 stop(s) via LAX; 360 minutes. Local airport times.
    • WN3847: SFO 2026-12-13 08:20:00 → LAX 2026-12-13 09:50:00; layover at LAX: 90 minutes.
    • WN3025: LAX 2026-12-13 11:20:00 → AUS 2026-12-13 16:20:00.
  • Southwest Airlines WN426: AUS 2026-12-20 08:50:00 → SFO 2026-12-20 10:50:00; nonstop; 240 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $361.00

  • Southwest Airlines WN4361 / WN2282: SFO 2026-12-13 05:10:00 → AUS 2026-12-13 12:50:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • WN4361: SFO 2026-12-13 05:10:00 → LAS 2026-12-13 06:45:00; layover at LAS: 85 minutes.
    • WN2282: LAS 2026-12-13 08:10:00 → AUS 2026-12-13 12:50:00.
  • Southwest Airlines WN426: AUS 2026-12-20 08:50:00 → SFO 2026-12-20 10:50:00; nonstop; 240 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $370.88

  • Delta Air Lines DL381: SFO 2026-12-13 14:30:00 → AUS 2026-12-13 20:02:00; nonstop; 212 minutes. Local airport times.
  • Delta Air Lines DL2581 / DL2762: AUS 2026-12-20 18:09:00 → SFO 2026-12-20 22:29:00; 1 stop(s) via SLC; 380 minutes. Local airport times.
    • DL2581: AUS 2026-12-20 18:09:00 → SLC 2026-12-20 20:10:00; layover at SLC: 65 minutes.
    • DL2762: SLC 2026-12-20 21:15:00 → SFO 2026-12-20 22:29:00.

2026-12-13 → 2026-12-20 · $377.00

  • United Airlines UA2862 / UA1157: SFO 2026-12-13 21:22:00 → AUS 2026-12-14 05:01:00; 1 stop(s) via LAX; 339 minutes. Local airport times.
    • UA2862: SFO 2026-12-13 21:22:00 → LAX 2026-12-13 22:52:00; layover at LAX: 67 minutes.
    • UA1157: LAX 2026-12-13 23:59:00 → AUS 2026-12-14 05:01:00.
  • United Airlines UA2179: AUS 2026-12-20 20:01:00 → SFO 2026-12-20 22:00:00; nonstop; 239 minutes. Local airport times.

More dates for this route