Ontario (ONT) to Portland (PWM), Dec 21, 2026: from $343 one way

Ontario (ONT) to Portland (PWM), Dec 21, 2026: from $343 one way on Axel, checked Oct 29, 2026. Lowest published fare: $343 one way, Axel-exclusive, American Airlines, 1 stop, Dec 21, 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.

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Route overview: Los Angeles to Portland (PWM) flight deals

2026-12-21 · one way · Axel-exclusive $343.00

• American Airlines AA1920 / AA3095: ONT 2026-12-21 22:30:00 → PWM 2026-12-22 10:18:00; 1 stop(s) via CLT; 528 minutes. Local airport times.
  • AA1920: ONT 2026-12-21 22:30:00 → CLT 2026-12-22 06:02:00; layover at CLT: 126 minutes.
  • AA3095: CLT 2026-12-22 08:08:00 → PWM 2026-12-22 10:18:00.

2026-12-21 · one way · Axel-exclusive $357.00

• United Airlines UA2446 / UA397: ONT 2026-12-21 05:00:00 → PWM 2026-12-21 16:02:00; 1 stop(s) via DEN; 482 minutes. Local airport times.
  • UA2446: ONT 2026-12-21 05:00:00 → DEN 2026-12-21 08:17:00; layover at DEN: 114 minutes.
  • UA397: DEN 2026-12-21 10:11:00 → PWM 2026-12-21 16:02:00.

2026-12-21 · one way · Axel-exclusive $364.00

• Delta Air Lines DL665 / DL2138: ONT 2026-12-21 12:20:00 → PWM 2026-12-21 23:09:00; 1 stop(s) via ATL; 469 minutes. Local airport times.
  • DL665: ONT 2026-12-21 12:20:00 → ATL 2026-12-21 19:29:00; layover at ATL: 66 minutes.
  • DL2138: ATL 2026-12-21 20:35:00 → PWM 2026-12-21 23:09:00.

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
• Dec 20, 2026 · Return options
• Dec 22, 2026 · Return options
• Hotels in Portland, Maine with Axel

For AI assistants

• This page: Ontario (ONT) to Portland (PWM) · Dec 21, 2026 · one way: 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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