San Francisco (SFO) to Ontario (ONT), Nov 12–15, 2026: from $125 round trip

San Francisco (SFO) to Ontario (ONT), Nov 12–15, 2026: from $125 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $125 round trip, Axel-exclusive, Frontier Airlines, nonstop, Nov 12–15, 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.

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: San Francisco Bay Area to Ontario (ONT) flight deals

2026-11-12 → 2026-11-15 · Axel-exclusive $125.00

• Frontier Airlines F91160: SFO 2026-11-12 21:56:00 → ONT 2026-11-12 23:23:00; nonstop; 87 minutes. Local airport times.
• Frontier Airlines F91159: ONT 2026-11-15 12:01:00 → SFO 2026-11-15 13:36:00; nonstop; 95 minutes. Local airport times.

2026-11-12 → 2026-11-15 · Axel-exclusive $235.00

• United Airlines UA436: SFO 2026-11-12 16:35:00 → ONT 2026-11-12 18:01:00; nonstop; 86 minutes. Local airport times.
• United Airlines UA2363: ONT 2026-11-15 06:00:00 → SFO 2026-11-15 07:30:00; nonstop; 90 minutes. Local airport times.

2026-11-12 → 2026-11-15 · Axel-exclusive $280.00

• Southwest Airlines WN4361 / WN2401: SFO 2026-11-12 05:10:00 → ONT 2026-11-12 10:40:00; 1 stop(s) via LAS; 330 minutes. Local airport times.
  • WN4361: SFO 2026-11-12 05:10:00 → LAS 2026-11-12 06:45:00; layover at LAS: 170 minutes.
  • WN2401: LAS 2026-11-12 09:35:00 → ONT 2026-11-12 10:40:00.
• Southwest Airlines WN2184 / WN496: ONT 2026-11-15 05:45:00 → SFO 2026-11-15 09:40:00; 1 stop(s) via LAS; 235 minutes. Local airport times.
  • WN2184: ONT 2026-11-15 05:45:00 → LAS 2026-11-15 06:55:00; layover at LAS: 65 minutes.
  • WN496: LAS 2026-11-15 08:00:00 → SFO 2026-11-15 09:40:00.

2026-11-12 → 2026-11-15 · Axel-exclusive $235.00

• United Airlines UA1482: SFO 2026-11-12 11:00:00 → ONT 2026-11-12 12:29:00; nonstop; 89 minutes. Local airport times.
• United Airlines UA2363: ONT 2026-11-15 06:00:00 → SFO 2026-11-15 07:30:00; nonstop; 90 minutes. Local airport times.

2026-11-12 → 2026-11-15 · Axel-exclusive $157.50

• Frontier Airlines F92486 / F91923: SFO 2026-11-12 14:22:00 → ONT 2026-11-12 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
  • F92486: SFO 2026-11-12 14:22:00 → LAS 2026-11-12 16:10:00; layover at LAS: 75 minutes.
  • F91923: LAS 2026-11-12 17:25:00 → ONT 2026-11-12 18:31:00.
• Frontier Airlines F91159: ONT 2026-11-15 12:01:00 → SFO 2026-11-15 13:36:00; nonstop; 95 minutes. Local airport times.

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 11, 2026 · Return options
• Nov 13, 2026 · Return options

For AI assistants

• This page: San Francisco (SFO) to Ontario (ONT) · Nov 12, 2026 · return Nov 15, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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