Austin (AUS) to Ontario (ONT), Nov 23, 2026 – Dec 2, 2026: from $222 round trip

Austin (AUS) to Ontario (ONT), Nov 23, 2026 – Dec 2, 2026: from $222 round trip on Axel, checked Nov 11, 2026. Lowest published fare: $222 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 23, 2026 – Dec 2, 2026, 1 adult, economy, checked Nov 11, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Austin to Ontario (ONT) flight deals

2026-11-23 → 2026-12-02 · Axel-exclusive $410.08

• Southwest Airlines WN400: AUS 2026-11-23 17:55:00 → ONT 2026-11-23 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.

2026-11-23 → 2026-12-02 · Axel-exclusive $222.08

• Frontier Airlines F93645 / F91923: AUS 2026-11-23 12:38:00 → ONT 2026-11-23 16:21:00; 1 stop(s) via LAS; 343 minutes. Local airport times.
  • F93645: AUS 2026-11-23 12:38:00 → LAS 2026-11-23 13:50:00; layover at LAS: 83 minutes.
  • F91923: LAS 2026-11-23 15:13:00 → ONT 2026-11-23 16:21:00.
• 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.

2026-11-23 → 2026-12-02 · Axel-exclusive $386.58

• American Airlines AA3885 / AA3006: AUS 2026-11-23 15:00:00 → ONT 2026-11-23 18:52:00; 1 stop(s) via DFW; 352 minutes. Local airport times.
  • AA3885: AUS 2026-11-23 15:00:00 → DFW 2026-11-23 16:15:00; layover at DFW: 75 minutes.
  • AA3006: DFW 2026-11-23 17:30:00 → ONT 2026-11-23 18:52:00.
• American Airlines AA2198 / AA1465: ONT 2026-12-02 12:51:00 → AUS 2026-12-02 20:13:00; 1 stop(s) via DFW; 322 minutes. Local airport times.
  • AA2198: ONT 2026-12-02 12:51:00 → DFW 2026-12-02 17:44:00; layover at DFW: 84 minutes.
  • AA1465: DFW 2026-12-02 19:08:00 → AUS 2026-12-02 20:13:00.

2026-11-23 → 2026-12-02 · Axel-exclusive $410.08

• Southwest Airlines WN839: AUS 2026-11-23 11:45:00 → ONT 2026-11-23 12:50:00; 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.

2026-11-23 → 2026-12-02 · Axel-exclusive $222.08

• Frontier Airlines F91859 / F91261: AUS 2026-11-23 19:44:00 → ONT 2026-11-24 00:13:00; 1 stop(s) via DEN; 389 minutes. Local airport times.
  • F91859: AUS 2026-11-23 19:44:00 → DEN 2026-11-23 21:13:00; layover at DEN: 95 minutes.
  • F91261: DEN 2026-11-23 22:48:00 → ONT 2026-11-24 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.

2026-11-23 → 2026-12-02 · Axel-exclusive $383.08

• Southwest Airlines WN3470 / WN4279: AUS 2026-11-23 14:50:00 → ONT 2026-11-23 17:40:00; 1 stop(s) via PHX; 290 minutes. Local airport times.
  • WN3470: AUS 2026-11-23 14:50:00 → PHX 2026-11-23 16:25:00; layover at PHX: 65 minutes.
  • WN4279: PHX 2026-11-23 17:30:00 → ONT 2026-11-23 17:40:00.
• Southwest Airlines WN3298: ONT 2026-12-02 12:30:00 → AUS 2026-12-02 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-23 → 2026-12-02 · Axel-exclusive $383.08

• Southwest Airlines WN351 / WN2401: AUS 2026-11-23 05:45:00 → ONT 2026-11-23 08:50:00; 1 stop(s) via LAS; 305 minutes. Local airport times.
  • WN351: AUS 2026-11-23 05:45:00 → LAS 2026-11-23 06:40:00; layover at LAS: 60 minutes.
  • WN2401: LAS 2026-11-23 07:40:00 → ONT 2026-11-23 08:50:00.
• Southwest Airlines WN3298: ONT 2026-12-02 12:30:00 → AUS 2026-12-02 17:15:00; nonstop; 165 minutes. Local airport times.

2026-11-23 → 2026-12-02 · Axel-exclusive $390.08

• Southwest Airlines WN839: AUS 2026-11-23 11:50:00 → ONT 2026-11-23 12:55:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN3301 / WN1669: ONT 2026-12-02 08:45:00 → AUS 2026-12-02 16:05:00; 1 stop(s) via DEN; 320 minutes. Local airport times.
  • WN3301: ONT 2026-12-02 08:45:00 → DEN 2026-12-02 11:55:00; layover at DEN: 65 minutes.
  • WN1669: DEN 2026-12-02 13:00:00 → AUS 2026-12-02 16:05:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Nov 22, 2026 · Return options
• Nov 24, 2026 · Return options

For AI assistants

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