Travel with Axel,
get the best price.

Ontario → Austin

Dec 3, 2026 · return Dec 13, 2026

ONT → AUS1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Thu, Dec 3 – Sun, Dec 13

Southwest Airlines
9:00 amONT
2h 45m
Nonstop
1:45 pmAUS
Southwest Airlines
7:50 pmAUS
3h 5m
Nonstop
8:55 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

Southwest Airlines
12:30 pmONT
2h 45m
Nonstop
5:15 pmAUS
Southwest Airlines
5:55 pmAUS
3h 5m
Nonstop
7:00 pmONT

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 3 – Sun, Dec 13

Frontier Airlines
11:52 amONT
5h 34m
DEN · 1h 1m
7:26 pmAUS
Frontier Airlines
12:38 pmAUS
5h 43m
LAS · 1h 23m
4:21 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

United Airlines
6:00 amONT
6h 20m
SFO · 1h
2:20 pmAUS
Southwest Airlines
5:55 pmAUS
3h 5m
Nonstop
7:00 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

American Airlines
9:50 amONT
5h 30m
PHX · 1h 43m
5:20 pmAUS
American Airlines
3:00 pmAUS
5h 52m
DFW · 1h 15m
6:52 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

Southwest Airlines
8:45 amONT
5h 20m
DEN · 1h 5m
4:05 pmAUS
Southwest Airlines
5:55 pmAUS
3h 5m
Nonstop
7:00 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

Southwest Airlines
5:00 pmONT
4h 55m
LAS · 1h 10m
11:55 pmAUS
Southwest Airlines
5:55 pmAUS
3h 5m
Nonstop
7:00 pmONT

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sun, Dec 13

American Airlines
12:51 pmONT
5h 22m
DFW · 1h 24m
8:13 pmAUS
American Airlines
3:00 pmAUS
5h 52m
DFW · 1h 15m
6:52 pmONT

Round-trip total · 1 adult · Taxes included

Make this trip yours

ONT ⇄ 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)
2026-12-03 → 2026-12-13Southwest AirlinesWN3298 / WN114$320.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13Frontier AirlinesF91262 + F91816 / F93645 + F91923$190.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13United Airlines / Southwest AirlinesUA2363 + UA5803 / WN400$345.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13American AirlinesAA1423 + AA1594 / AA3885 + AA3006$350.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13Southwest AirlinesWN3298 / WN400$320.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13Southwest AirlinesWN3301 + WN1669 / WN400$310.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13Southwest AirlinesWN1053 + WN4906 / WN400$310.002026-10-29T01:52:33Z
2026-12-03 → 2026-12-13American AirlinesAA2198 + AA1465 / AA3885 + AA3006$350.002026-10-29T01:52:33Z

2026-12-03 → 2026-12-13 · $320.00

  • Southwest Airlines WN3298: ONT 2026-12-03 09:00:00 → AUS 2026-12-03 13:45:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN114: AUS 2026-12-13 19:50:00 → ONT 2026-12-13 20:55:00; nonstop; 185 minutes. Local airport times.

2026-12-03 → 2026-12-13 · $190.00

  • Frontier Airlines F91262 / F91816: ONT 2026-12-03 11:52:00 → AUS 2026-12-03 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
    • F91262: ONT 2026-12-03 11:52:00 → DEN 2026-12-03 15:13:00; layover at DEN: 61 minutes.
    • F91816: DEN 2026-12-03 16:14:00 → AUS 2026-12-03 19:26:00.
  • Frontier Airlines F93645 / F91923: AUS 2026-12-13 12:38:00 → ONT 2026-12-13 16:21:00; 1 stop(s) via LAS; 343 minutes. Local airport times.
    • F93645: AUS 2026-12-13 12:38:00 → LAS 2026-12-13 13:50:00; layover at LAS: 83 minutes.
    • F91923: LAS 2026-12-13 15:13:00 → ONT 2026-12-13 16:21:00.

2026-12-03 → 2026-12-13 · $345.00

  • United Airlines UA2363 / UA5803: ONT 2026-12-03 06:00:00 → AUS 2026-12-03 14:20:00; 1 stop(s) via SFO; 380 minutes. Local airport times.
    • UA2363: ONT 2026-12-03 06:00:00 → SFO 2026-12-03 07:30:00; layover at SFO: 60 minutes.
    • UA5803: SFO 2026-12-03 08:30:00 → AUS 2026-12-03 14:20:00.
  • Southwest Airlines WN400: AUS 2026-12-13 17:55:00 → ONT 2026-12-13 19:00:00; nonstop; 185 minutes. Local airport times.

2026-12-03 → 2026-12-13 · $350.00

  • American Airlines AA1423 / AA1594: ONT 2026-12-03 09:50:00 → AUS 2026-12-03 17:20:00; 1 stop(s) via PHX; 330 minutes. Local airport times.
    • AA1423: ONT 2026-12-03 09:50:00 → PHX 2026-12-03 12:15:00; layover at PHX: 103 minutes.
    • AA1594: PHX 2026-12-03 13:58:00 → AUS 2026-12-03 17:20:00.
  • American Airlines AA3885 / AA3006: AUS 2026-12-13 15:00:00 → ONT 2026-12-13 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
    • AA3885: AUS 2026-12-13 15:00:00 → DFW 2026-12-13 16:15:00; layover at DFW: 75 minutes.
    • AA3006: DFW 2026-12-13 17:30:00 → ONT 2026-12-13 18:52:00.

2026-12-03 → 2026-12-13 · $320.00

  • Southwest Airlines WN3298: ONT 2026-12-03 12:30:00 → AUS 2026-12-03 17:15:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN400: AUS 2026-12-13 17:55:00 → ONT 2026-12-13 19:00:00; nonstop; 185 minutes. Local airport times.

2026-12-03 → 2026-12-13 · $310.00

  • Southwest Airlines WN3301 / WN1669: ONT 2026-12-03 08:45:00 → AUS 2026-12-03 16:05:00; 1 stop(s) via DEN; 320 minutes. Local airport times.
    • WN3301: ONT 2026-12-03 08:45:00 → DEN 2026-12-03 11:55:00; layover at DEN: 65 minutes.
    • WN1669: DEN 2026-12-03 13:00:00 → AUS 2026-12-03 16:05:00.
  • Southwest Airlines WN400: AUS 2026-12-13 17:55:00 → ONT 2026-12-13 19:00:00; nonstop; 185 minutes. Local airport times.

2026-12-03 → 2026-12-13 · $310.00

  • Southwest Airlines WN1053 / WN4906: ONT 2026-12-03 17:00:00 → AUS 2026-12-03 23:55:00; 1 stop(s) via LAS; 295 minutes. Local airport times.
    • WN1053: ONT 2026-12-03 17:00:00 → LAS 2026-12-03 18:05:00; layover at LAS: 70 minutes.
    • WN4906: LAS 2026-12-03 19:15:00 → AUS 2026-12-03 23:55:00.
  • Southwest Airlines WN400: AUS 2026-12-13 17:55:00 → ONT 2026-12-13 19:00:00; nonstop; 185 minutes. Local airport times.

2026-12-03 → 2026-12-13 · $350.00

  • American Airlines AA2198 / AA1465: ONT 2026-12-03 12:51:00 → AUS 2026-12-03 20:13:00; 1 stop(s) via DFW; 322 minutes. Local airport times.
    • AA2198: ONT 2026-12-03 12:51:00 → DFW 2026-12-03 17:44:00; layover at DFW: 84 minutes.
    • AA1465: DFW 2026-12-03 19:08:00 → AUS 2026-12-03 20:13:00.
  • American Airlines AA3885 / AA3006: AUS 2026-12-13 15:00:00 → ONT 2026-12-13 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
    • AA3885: AUS 2026-12-13 15:00:00 → DFW 2026-12-13 16:15:00; layover at DFW: 75 minutes.
    • AA3006: DFW 2026-12-13 17:30:00 → ONT 2026-12-13 18:52:00.

More dates for this route