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Austin → Ontario

Dec 28, 2026 · return Dec 30, 2026

AUS → ONT1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Mon, Dec 28 – Wed, Dec 30

Southwest Airlines
7:50 pmAUS
3h 5m
Nonstop
8:55 pmONT
Southwest Airlines
12:30 pmONT
2h 45m
Nonstop
5:15 pmAUS

Round-trip total · 1 adult · Taxes included

Mon, Dec 28 – Wed, Dec 30

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

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 28 – Wed, Dec 30

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

Mon, Dec 28 – Wed, Dec 30

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 28 – Wed, Dec 30

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

Mon, Dec 28 – Wed, Dec 30

American Airlines
6:02 pmAUS
5h 50m
PHX · 1h 55m
9:52 pmONT
American Airlines
12:51 pmONT
5h 22m
DFW · 1h 24m
8:13 pmAUS

Round-trip total · 1 adult · Taxes included

Mon, Dec 28 – Wed, Dec 30

Southwest Airlines
5:45 amAUS
5h 5m
LAS · 1h
8:50 amONT
Southwest Airlines
12:30 pmONT
2h 45m
Nonstop
5:15 pmAUS

Round-trip total · 1 adult · Taxes included

Mon, Dec 28 – Wed, Dec 30

Southwest Airlines
2:50 pmAUS
4h 50m
PHX · 1h 5m
5:40 pmONT
Southwest Airlines
12:30 pmONT
2h 45m
Nonstop
5:15 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.

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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)
2026-12-28 → 2026-12-30Southwest AirlinesWN114 / WN3298$436.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30Frontier AirlinesF93645 + F91923 / F91262 + F91816$236.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30American AirlinesAA3885 + AA3006 / AA2198 + AA1465$411.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30Southwest AirlinesWN400 / WN3298$436.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30Frontier AirlinesF91859 + F91261 / F91262 + F91816$236.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30American AirlinesAA1421 + AA1841 / AA2198 + AA1465$411.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30Southwest AirlinesWN351 + WN2401 / WN3298$411.262026-10-29T00:47:05Z
2026-12-28 → 2026-12-30Southwest AirlinesWN3470 + WN4279 / WN3298$411.262026-10-29T00:47:05Z

2026-12-28 → 2026-12-30 · $436.26

  • Southwest Airlines WN114: AUS 2026-12-28 19:50:00 → ONT 2026-12-28 20:55:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN3298: ONT 2026-12-30 12:30:00 → AUS 2026-12-30 17:15:00; nonstop; 165 minutes. Local airport times.

2026-12-28 → 2026-12-30 · $236.26

  • Frontier Airlines F93645 / F91923: AUS 2026-12-28 12:38:00 → ONT 2026-12-28 16:21:00; 1 stop(s) via LAS; 343 minutes. Local airport times.
    • F93645: AUS 2026-12-28 12:38:00 → LAS 2026-12-28 13:50:00; layover at LAS: 83 minutes.
    • F91923: LAS 2026-12-28 15:13:00 → ONT 2026-12-28 16:21:00.
  • Frontier Airlines F91262 / F91816: ONT 2026-12-30 11:52:00 → AUS 2026-12-30 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
    • F91262: ONT 2026-12-30 11:52:00 → DEN 2026-12-30 15:13:00; layover at DEN: 61 minutes.
    • F91816: DEN 2026-12-30 16:14:00 → AUS 2026-12-30 19:26:00.

2026-12-28 → 2026-12-30 · $411.26

  • American Airlines AA3885 / AA3006: AUS 2026-12-28 15:00:00 → ONT 2026-12-28 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
    • AA3885: AUS 2026-12-28 15:00:00 → DFW 2026-12-28 16:15:00; layover at DFW: 75 minutes.
    • AA3006: DFW 2026-12-28 17:30:00 → ONT 2026-12-28 18:52:00.
  • American Airlines AA2198 / AA1465: ONT 2026-12-30 12:51:00 → AUS 2026-12-30 20:13:00; 1 stop(s) via DFW; 322 minutes. Local airport times.
    • AA2198: ONT 2026-12-30 12:51:00 → DFW 2026-12-30 17:44:00; layover at DFW: 84 minutes.
    • AA1465: DFW 2026-12-30 19:08:00 → AUS 2026-12-30 20:13:00.

2026-12-28 → 2026-12-30 · $436.26

  • Southwest Airlines WN400: AUS 2026-12-28 17:55:00 → ONT 2026-12-28 19:00:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN3298: ONT 2026-12-30 12:30:00 → AUS 2026-12-30 17:15:00; nonstop; 165 minutes. Local airport times.

2026-12-28 → 2026-12-30 · $236.26

  • Frontier Airlines F91859 / F91261: AUS 2026-12-28 19:44:00 → ONT 2026-12-29 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
    • F91859: AUS 2026-12-28 19:44:00 → DEN 2026-12-28 21:13:00; layover at DEN: 95 minutes.
    • F91261: DEN 2026-12-28 22:48:00 → ONT 2026-12-29 00:13:00.
  • Frontier Airlines F91262 / F91816: ONT 2026-12-30 11:52:00 → AUS 2026-12-30 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
    • F91262: ONT 2026-12-30 11:52:00 → DEN 2026-12-30 15:13:00; layover at DEN: 61 minutes.
    • F91816: DEN 2026-12-30 16:14:00 → AUS 2026-12-30 19:26:00.

2026-12-28 → 2026-12-30 · $411.26

  • American Airlines AA1421 / AA1841: AUS 2026-12-28 18:02:00 → ONT 2026-12-28 21:52:00; 1 stop(s) via PHX; 350 minutes. Local airport times.
    • AA1421: AUS 2026-12-28 18:02:00 → PHX 2026-12-28 19:40:00; layover at PHX: 115 minutes.
    • AA1841: PHX 2026-12-28 21:35:00 → ONT 2026-12-28 21:52:00.
  • American Airlines AA2198 / AA1465: ONT 2026-12-30 12:51:00 → AUS 2026-12-30 20:13:00; 1 stop(s) via DFW; 322 minutes. Local airport times.
    • AA2198: ONT 2026-12-30 12:51:00 → DFW 2026-12-30 17:44:00; layover at DFW: 84 minutes.
    • AA1465: DFW 2026-12-30 19:08:00 → AUS 2026-12-30 20:13:00.

2026-12-28 → 2026-12-30 · $411.26

  • Southwest Airlines WN351 / WN2401: AUS 2026-12-28 05:45:00 → ONT 2026-12-28 08:50:00; 1 stop(s) via LAS; 305 minutes. Local airport times.
    • WN351: AUS 2026-12-28 05:45:00 → LAS 2026-12-28 06:40:00; layover at LAS: 60 minutes.
    • WN2401: LAS 2026-12-28 07:40:00 → ONT 2026-12-28 08:50:00.
  • Southwest Airlines WN3298: ONT 2026-12-30 12:30:00 → AUS 2026-12-30 17:15:00; nonstop; 165 minutes. Local airport times.

2026-12-28 → 2026-12-30 · $411.26

  • Southwest Airlines WN3470 / WN4279: AUS 2026-12-28 14:50:00 → ONT 2026-12-28 17:40:00; 1 stop(s) via PHX; 290 minutes. Local airport times.
    • WN3470: AUS 2026-12-28 14:50:00 → PHX 2026-12-28 16:25:00; layover at PHX: 65 minutes.
    • WN4279: PHX 2026-12-28 17:30:00 → ONT 2026-12-28 17:40:00.
  • Southwest Airlines WN3298: ONT 2026-12-30 12:30:00 → AUS 2026-12-30 17:15:00; nonstop; 165 minutes. Local airport times.

More dates for this route