Portland (PDX) to Ontario (ONT), Nov 11–15, 2026: from $148 round trip

Portland (PDX) to Ontario (ONT), Nov 11–15, 2026: from $148 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $148 round trip, Axel-exclusive, Frontier Airlines, nonstop, Nov 11–15, 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: Portland to Ontario (ONT) flight deals

2026-11-11 → 2026-11-15 · Axel-exclusive $148.00

• Frontier Airlines F92914: PDX 2026-11-11 12:52:00 → ONT 2026-11-11 15:18:00; nonstop; 146 minutes. Local airport times.
• Frontier Airlines F92913: ONT 2026-11-15 09:25:00 → PDX 2026-11-15 11:57:00; nonstop; 152 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $258.00

• Alaska Airlines AS2256: PDX 2026-11-11 17:40:00 → ONT 2026-11-11 20:06:00; nonstop; 146 minutes. Local airport times.
• Alaska Airlines AS3312: ONT 2026-11-15 10:40:00 → PDX 2026-11-15 13:05:00; nonstop; 145 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $223.00

• American Airlines AA2660 / AA1666: PDX 2026-11-11 14:04:00 → ONT 2026-11-11 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
  • AA2660: PDX 2026-11-11 14:04:00 → PHX 2026-11-11 17:38:00; layover at PHX: 80 minutes.
  • AA1666: PHX 2026-11-11 18:58:00 → ONT 2026-11-11 19:21:00.
• Frontier Airlines F92913: ONT 2026-11-15 09:25:00 → PDX 2026-11-15 11:57:00; nonstop; 152 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $278.00

• Southwest Airlines WN2101 / WN2401: PDX 2026-11-11 06:00:00 → ONT 2026-11-11 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
  • WN2101: PDX 2026-11-11 06:00:00 → LAS 2026-11-11 08:10:00; layover at LAS: 85 minutes.
  • WN2401: LAS 2026-11-11 09:35:00 → ONT 2026-11-11 10:40:00.
• Southwest Airlines WN2184 / WN3852: ONT 2026-11-15 05:45:00 → PDX 2026-11-15 10:40:00; 1 stop(s) via LAS; 295 minutes. Local airport times.
  • WN2184: ONT 2026-11-15 05:45:00 → LAS 2026-11-15 06:55:00; layover at LAS: 75 minutes.
  • WN3852: LAS 2026-11-15 08:10:00 → PDX 2026-11-15 10:40:00.

2026-11-11 → 2026-11-15 · Axel-exclusive $258.00

• Alaska Airlines AS3312: PDX 2026-11-11 07:30:00 → ONT 2026-11-11 09:52:00; nonstop; 142 minutes. Local airport times.
• Alaska Airlines AS3312: ONT 2026-11-15 10:40:00 → PDX 2026-11-15 13:05:00; nonstop; 145 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $178.00

• Frontier Airlines F91106 / F91923: PDX 2026-11-11 12:51:00 → ONT 2026-11-11 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
  • F91106: PDX 2026-11-11 12:51:00 → LAS 2026-11-11 15:04:00; layover at LAS: 141 minutes.
  • F91923: LAS 2026-11-11 17:25:00 → ONT 2026-11-11 18:31:00.
• Frontier Airlines F92913: ONT 2026-11-15 09:25:00 → PDX 2026-11-15 11:57:00; nonstop; 152 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $268.00

• Alaska Airlines AS427 / AS575: PDX 2026-11-11 05:30:00 → ONT 2026-11-11 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
  • AS427: PDX 2026-11-11 05:30:00 → SEA 2026-11-11 06:31:00; layover at SEA: 123 minutes.
  • AS575: SEA 2026-11-11 08:34:00 → ONT 2026-11-11 11:18:00.
• Alaska Airlines AS3312: ONT 2026-11-15 10:40:00 → PDX 2026-11-15 13:05:00; nonstop; 145 minutes. Local airport times.

2026-11-11 → 2026-11-15 · Axel-exclusive $278.00

• Southwest Airlines WN510 / WN1383: PDX 2026-11-11 07:30:00 → ONT 2026-11-11 12:40:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN510: PDX 2026-11-11 07:30:00 → SJC 2026-11-11 09:20:00; layover at SJC: 120 minutes.
  • WN1383: SJC 2026-11-11 11:20:00 → ONT 2026-11-11 12:40:00.
• Southwest Airlines WN2184 / WN3852: ONT 2026-11-15 05:45:00 → PDX 2026-11-15 10:40:00; 1 stop(s) via LAS; 295 minutes. Local airport times.
  • WN2184: ONT 2026-11-15 05:45:00 → LAS 2026-11-15 06:55:00; layover at LAS: 75 minutes.
  • WN3852: LAS 2026-11-15 08:10:00 → PDX 2026-11-15 10:40:00.

2026-11-11 → 2026-11-15 · Axel-exclusive $278.00

• Southwest Airlines WN1593 / WN1053: PDX 2026-11-11 11:20:00 → ONT 2026-11-11 16:15:00; 1 stop(s) via OAK; 295 minutes. Local airport times.
  • WN1593: PDX 2026-11-11 11:20:00 → OAK 2026-11-11 13:05:00; layover at OAK: 115 minutes.
  • WN1053: OAK 2026-11-11 15:00:00 → ONT 2026-11-11 16:15:00.
• Southwest Airlines WN2184 / WN3852: ONT 2026-11-15 05:45:00 → PDX 2026-11-15 10:40:00; 1 stop(s) via LAS; 295 minutes. Local airport times.
  • WN2184: ONT 2026-11-15 05:45:00 → LAS 2026-11-15 06:55:00; layover at LAS: 75 minutes.
  • WN3852: LAS 2026-11-15 08:10:00 → PDX 2026-11-15 10:40:00.

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 10, 2026 · Return options
• Nov 12, 2026 · Return options

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