Austin (AUS) to Ontario (ONT), Nov 25, 2026: round trips from $222, one way from $134

Austin (AUS) to Ontario (ONT), Nov 25, 2026: round trips from $222, one way from $134 on Axel, checked Oct 29, 2026. Lowest published fares: $222 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 25, 2026 – Dec 1, 2026; $134 one way, Axel-exclusive, Frontier Airlines, 1 stop, Nov 25, 2026; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Route overview: Austin to Ontario (ONT) flight deals

2026-11-25 · one way · Axel-exclusive $133.65

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.

2026-11-25 · one way · Axel-exclusive $241.65

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.

2026-11-25 → 2026-11-26 · Axel-exclusive $255.16

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-11-26 11:52:00 → AUS 2026-11-26 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-11-26 11:52:00 → DEN 2026-11-26 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-11-26 16:14:00 → AUS 2026-11-26 19:26:00.

2026-11-25 → 2026-11-26 · Axel-exclusive $471.16

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-11-26 12:30:00 → AUS 2026-11-26 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-11-27 · Axel-exclusive $255.16

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-11-27 11:52:00 → AUS 2026-11-27 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-11-27 11:52:00 → DEN 2026-11-27 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-11-27 16:14:00 → AUS 2026-11-27 19:26:00.

2026-11-25 → 2026-11-27 · Axel-exclusive $471.16

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-11-27 12:30:00 → AUS 2026-11-27 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-11-28 · Axel-exclusive $255.16

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-11-28 11:52:00 → AUS 2026-11-28 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-11-28 11:52:00 → DEN 2026-11-28 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-11-28 16:14:00 → AUS 2026-11-28 19:26:00.

2026-11-25 → 2026-11-28 · Axel-exclusive $444.16

• American Airlines AA3885 / AA3006: AUS 2026-11-25 15:00:00 → ONT 2026-11-25 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
  • AA3885: AUS 2026-11-25 15:00:00 → DFW 2026-11-25 16:15:00; layover at DFW: 75 minutes.
  • AA3006: DFW 2026-11-25 17:30:00 → ONT 2026-11-25 18:52:00.
• American Airlines AA1423 / AA1594: ONT 2026-11-28 09:50:00 → AUS 2026-11-28 17:20:00; 1 stop(s) via PHX; 330 minutes. Local airport times.
  • AA1423: ONT 2026-11-28 09:50:00 → PHX 2026-11-28 12:15:00; layover at PHX: 103 minutes.
  • AA1594: PHX 2026-11-28 13:58:00 → AUS 2026-11-28 17:20:00.

2026-11-25 → 2026-11-29 · Axel-exclusive $255.16

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-11-29 11:52:00 → AUS 2026-11-29 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-11-29 11:52:00 → DEN 2026-11-29 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-11-29 16:14:00 → AUS 2026-11-29 19:26:00.

2026-11-25 → 2026-11-29 · Axel-exclusive $471.16

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-11-29 12:30:00 → AUS 2026-11-29 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-01 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-01 11:52:00 → AUS 2026-12-01 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-01 11:52:00 → DEN 2026-12-01 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-01 16:14:00 → AUS 2026-12-01 19:26:00.

2026-11-25 → 2026-12-01 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-01 07:50:00 → AUS 2026-12-01 12:35:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-02 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-02 11:52:00 → AUS 2026-12-02 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-02 11:52:00 → DEN 2026-12-02 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-02 16:14:00 → AUS 2026-12-02 19:26:00.

2026-11-25 → 2026-12-02 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-02 12:30:00 → AUS 2026-12-02 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-03 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• 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.

2026-11-25 → 2026-12-03 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-03 12:30:00 → AUS 2026-12-03 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-05 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-05 11:52:00 → AUS 2026-12-05 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-05 11:52:00 → DEN 2026-12-05 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-05 16:14:00 → AUS 2026-12-05 19:26:00.

2026-11-25 → 2026-12-05 · Axel-exclusive $386.58

• American Airlines AA3885 / AA3006: AUS 2026-11-25 15:00:00 → ONT 2026-11-25 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
  • AA3885: AUS 2026-11-25 15:00:00 → DFW 2026-11-25 16:15:00; layover at DFW: 75 minutes.
  • AA3006: DFW 2026-11-25 17:30:00 → ONT 2026-11-25 18:52:00.
• American Airlines AA1423 / AA1594: ONT 2026-12-05 09:50:00 → AUS 2026-12-05 17:20:00; 1 stop(s) via PHX; 330 minutes. Local airport times.
  • AA1423: ONT 2026-12-05 09:50:00 → PHX 2026-12-05 12:15:00; layover at PHX: 103 minutes.
  • AA1594: PHX 2026-12-05 13:58:00 → AUS 2026-12-05 17:20:00.

2026-11-25 → 2026-12-06 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-06 11:52:00 → AUS 2026-12-06 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-06 11:52:00 → DEN 2026-12-06 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-06 16:14:00 → AUS 2026-12-06 19:26:00.

2026-11-25 → 2026-12-06 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-06 12:30:00 → AUS 2026-12-06 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-07 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-07 11:52:00 → AUS 2026-12-07 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-07 11:52:00 → DEN 2026-12-07 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-07 16:14:00 → AUS 2026-12-07 19:26:00.

2026-11-25 → 2026-12-07 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-07 09:00:00 → AUS 2026-12-07 13:45:00; nonstop; 165 minutes. Local airport times.

2026-11-25 → 2026-12-09 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-25 19:44:00 → ONT 2026-11-26 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-25 19:44:00 → DEN 2026-11-25 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-25 22:48:00 → ONT 2026-11-26 00:13:00.
• Frontier Airlines F91262 / F91816: ONT 2026-12-09 11:52:00 → AUS 2026-12-09 19:26:00; 1 stop(s) via DEN; 334 minutes. Local airport times.
  • F91262: ONT 2026-12-09 11:52:00 → DEN 2026-12-09 15:13:00; layover at DEN: 61 minutes.
  • F91816: DEN 2026-12-09 16:14:00 → AUS 2026-12-09 19:26:00.

2026-11-25 → 2026-12-09 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-25 17:55:00 → ONT 2026-11-25 19:00:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3298: ONT 2026-12-09 12:30:00 → AUS 2026-12-09 17:15:00; nonstop; 165 minutes. Local airport times.

Explore this route

• All dates for this route
• Nov 24, 2026 · Return options
• Nov 26, 2026 · Return options

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