Travel with Axel,
get the best price.

Austin → Ontario

Dec 17, 2026 · return Dec 22, 2026

AUS → ONT1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Thu, Dec 17 – Tue, Dec 22

Southwest Airlines
5:55 pmAUS
3h 5m
Nonstop
7:00 pmONT
Southwest Airlines
7:50 amONT
2h 45m
Nonstop
12:35 pmAUS

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

Southwest Airlines
7:50 pmAUS
3h 5m
Nonstop
8:55 pmONT
Southwest Airlines
7:50 amONT
2h 45m
Nonstop
12:35 pmAUS

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 17 – Tue, Dec 22

Frontier Airlines
7:44 pmAUS
6h 29m
DEN · 1h 35m
12:13 am+1ONT
Frontier Airlines
11:52 amONT
5h 34m
DEN · 1h 1m
7:26 pmAUS

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

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

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

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

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

American Airlines
6:02 pmAUS
5h 50m
PHX · 1h 55m
9:52 pmONT
American Airlines
9:50 amONT
5h 30m
PHX · 1h 43m
5:20 pmAUS

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

Southwest Airlines
5:45 amAUS
5h 5m
LAS · 1h
8:50 amONT
Southwest Airlines
7:50 amONT
2h 45m
Nonstop
12:35 pmAUS

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Tue, Dec 22

Southwest Airlines
2:50 pmAUS
4h 50m
PHX · 1h 5m
5:40 pmONT
Southwest Airlines
7:50 amONT
2h 45m
Nonstop
12:35 pmAUS

Round-trip total · 1 adult · Taxes included

Make this trip yours

AUS ⇄ ONT

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 routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 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)
2026-12-17 → 2026-12-22Southwest AirlinesWN400 / WN3298$401.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22Frontier AirlinesF91859 + F91261 / F91262 + F91816$217.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22American AirlinesAA3885 + AA3006 / AA1423 + AA1594$378.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22Southwest AirlinesWN114 / WN3298$401.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22Frontier AirlinesF93645 + F91923 / F91262 + F91816$217.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22American AirlinesAA1421 + AA1841 / AA1423 + AA1594$378.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22Southwest AirlinesWN351 + WN2401 / WN3298$381.352026-10-29T00:47:05Z
2026-12-17 → 2026-12-22Southwest AirlinesWN3470 + WN4279 / WN3298$381.352026-10-29T00:47:05Z

2026-12-17 → 2026-12-22 · $401.35

  • Southwest Airlines WN400: AUS 2026-12-17 17:55:00 → ONT 2026-12-17 19:00:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN3298: ONT 2026-12-22 07:50:00 → AUS 2026-12-22 12:35:00; nonstop; 165 minutes. Local airport times.

2026-12-17 → 2026-12-22 · $217.35

  • Frontier Airlines F91859 / F91261: AUS 2026-12-17 19:44:00 → ONT 2026-12-18 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
    • F91859: AUS 2026-12-17 19:44:00 → DEN 2026-12-17 21:13:00; layover at DEN: 95 minutes.
    • F91261: DEN 2026-12-17 22:48:00 → ONT 2026-12-18 00:13:00.
  • Frontier Airlines F91262 / F91816: ONT 2026-12-22 11:52:00 → AUS 2026-12-22 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
    • F91262: ONT 2026-12-22 11:52:00 → DEN 2026-12-22 15:13:00; layover at DEN: 61 minutes.
    • F91816: DEN 2026-12-22 16:14:00 → AUS 2026-12-22 19:26:00.

2026-12-17 → 2026-12-22 · $378.35

  • American Airlines AA3885 / AA3006: AUS 2026-12-17 15:00:00 → ONT 2026-12-17 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
    • AA3885: AUS 2026-12-17 15:00:00 → DFW 2026-12-17 16:15:00; layover at DFW: 75 minutes.
    • AA3006: DFW 2026-12-17 17:30:00 → ONT 2026-12-17 18:52:00.
  • American Airlines AA1423 / AA1594: ONT 2026-12-22 09:50:00 → AUS 2026-12-22 17:20:00; 1 stop(s) via PHX; 330 minutes. Local airport times.
    • AA1423: ONT 2026-12-22 09:50:00 → PHX 2026-12-22 12:15:00; layover at PHX: 103 minutes.
    • AA1594: PHX 2026-12-22 13:58:00 → AUS 2026-12-22 17:20:00.

2026-12-17 → 2026-12-22 · $401.35

  • Southwest Airlines WN114: AUS 2026-12-17 19:50:00 → ONT 2026-12-17 20:55:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN3298: ONT 2026-12-22 07:50:00 → AUS 2026-12-22 12:35:00; nonstop; 165 minutes. Local airport times.

2026-12-17 → 2026-12-22 · $217.35

  • Frontier Airlines F93645 / F91923: AUS 2026-12-17 12:38:00 → ONT 2026-12-17 16:21:00; 1 stop(s) via LAS; 343 minutes. Local airport times.
    • F93645: AUS 2026-12-17 12:38:00 → LAS 2026-12-17 13:50:00; layover at LAS: 83 minutes.
    • F91923: LAS 2026-12-17 15:13:00 → ONT 2026-12-17 16:21:00.
  • Frontier Airlines F91262 / F91816: ONT 2026-12-22 11:52:00 → AUS 2026-12-22 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
    • F91262: ONT 2026-12-22 11:52:00 → DEN 2026-12-22 15:13:00; layover at DEN: 61 minutes.
    • F91816: DEN 2026-12-22 16:14:00 → AUS 2026-12-22 19:26:00.

2026-12-17 → 2026-12-22 · $378.35

  • American Airlines AA1421 / AA1841: AUS 2026-12-17 18:02:00 → ONT 2026-12-17 21:52:00; 1 stop(s) via PHX; 350 minutes. Local airport times.
    • AA1421: AUS 2026-12-17 18:02:00 → PHX 2026-12-17 19:40:00; layover at PHX: 115 minutes.
    • AA1841: PHX 2026-12-17 21:35:00 → ONT 2026-12-17 21:52:00.
  • American Airlines AA1423 / AA1594: ONT 2026-12-22 09:50:00 → AUS 2026-12-22 17:20:00; 1 stop(s) via PHX; 330 minutes. Local airport times.
    • AA1423: ONT 2026-12-22 09:50:00 → PHX 2026-12-22 12:15:00; layover at PHX: 103 minutes.
    • AA1594: PHX 2026-12-22 13:58:00 → AUS 2026-12-22 17:20:00.

2026-12-17 → 2026-12-22 · $381.35

  • Southwest Airlines WN351 / WN2401: AUS 2026-12-17 05:45:00 → ONT 2026-12-17 08:50:00; 1 stop(s) via LAS; 305 minutes. Local airport times.
    • WN351: AUS 2026-12-17 05:45:00 → LAS 2026-12-17 06:40:00; layover at LAS: 60 minutes.
    • WN2401: LAS 2026-12-17 07:40:00 → ONT 2026-12-17 08:50:00.
  • Southwest Airlines WN3298: ONT 2026-12-22 07:50:00 → AUS 2026-12-22 12:35:00; nonstop; 165 minutes. Local airport times.

2026-12-17 → 2026-12-22 · $381.35

  • Southwest Airlines WN3470 / WN4279: AUS 2026-12-17 14:50:00 → ONT 2026-12-17 17:40:00; 1 stop(s) via PHX; 290 minutes. Local airport times.
    • WN3470: AUS 2026-12-17 14:50:00 → PHX 2026-12-17 16:25:00; layover at PHX: 65 minutes.
    • WN4279: PHX 2026-12-17 17:30:00 → ONT 2026-12-17 17:40:00.
  • Southwest Airlines WN3298: ONT 2026-12-22 07:50:00 → AUS 2026-12-22 12:35:00; nonstop; 165 minutes. Local airport times.

More dates for this route