Ontario (ONT) to Seoul (ICN), Dec 21–28, 2026: from $1,375 round trip

Ontario (ONT) to Seoul (ICN), Dec 21–28, 2026: from $1,375 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $1,375 round trip, Axel-exclusive, United Airlines, 1 stop, Dec 21–28, 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: Los Angeles to Seoul (ICN) flight deals

2026-12-21 → 2026-12-28 · Axel-exclusive $1375.00

• United Airlines UA2363 / UA893: ONT 2026-12-21 06:00:00 → ICN 2026-12-22 16:15:00; 1 stop(s) via SFO; 1035 minutes. Local airport times.
  • UA2363: ONT 2026-12-21 06:00:00 → SFO 2026-12-21 07:30:00; layover at SFO: 170 minutes.
  • UA893: SFO 2026-12-21 10:20:00 → ICN 2026-12-22 16:15:00.
• United Airlines UA892 / UA5592: ICN 2026-12-28 18:00:00 → ONT 2026-12-28 15:19:00; 1 stop(s) via SFO; 859 minutes. Local airport times.
  • UA892: ICN 2026-12-28 18:00:00 → SFO 2026-12-28 11:45:00; layover at SFO: 120 minutes.
  • UA5592: SFO 2026-12-28 13:45:00 → ONT 2026-12-28 15:19:00.

2026-12-21 → 2026-12-28 · Axel-exclusive $1387.50

• Alaska Airlines AS607 / AS119: ONT 2026-12-21 06:00:00 → ICN 2026-12-22 17:35:00; 1 stop(s) via SEA; 1115 minutes. Local airport times.
  • AS607: ONT 2026-12-21 06:00:00 → SEA 2026-12-21 08:51:00; layover at SEA: 229 minutes.
  • AS119: SEA 2026-12-21 12:40:00 → ICN 2026-12-22 17:35:00.
• United Airlines UA892 / UA5592: ICN 2026-12-28 18:00:00 → ONT 2026-12-28 15:19:00; 1 stop(s) via SFO; 859 minutes. Local airport times.
  • UA892: ICN 2026-12-28 18:00:00 → SFO 2026-12-28 11:45:00; layover at SFO: 120 minutes.
  • UA5592: SFO 2026-12-28 13:45:00 → ONT 2026-12-28 15:19:00.

2026-12-21 → 2026-12-28 · Axel-exclusive $1425.00

• Delta Air Lines DL4031 / KE48: ONT 2026-12-21 17:56:00 → ICN 2026-12-23 05:20:00; 1 stop(s) via SEA; 1104 minutes. Local airport times.
  • DL4031: ONT 2026-12-21 17:56:00 → SEA 2026-12-21 20:57:00; layover at SEA: 193 minutes.
  • KE48: SEA 2026-12-22 00:10:00 → ICN 2026-12-23 05:20:00.
• United Airlines UA892 / UA5592: ICN 2026-12-28 18:00:00 → ONT 2026-12-28 15:19:00; 1 stop(s) via SFO; 859 minutes. Local airport times.
  • UA892: ICN 2026-12-28 18:00:00 → SFO 2026-12-28 11:45:00; layover at SFO: 120 minutes.
  • UA5592: SFO 2026-12-28 13:45:00 → ONT 2026-12-28 15:19:00.

2026-12-21 → 2026-12-28 · Axel-exclusive $1425.00

• Delta Air Lines DL2708 / DL173: ONT 2026-12-21 06:00:00 → ICN 2026-12-22 16:20:00; 1 stop(s) via SLC; 1040 minutes. Local airport times.
  • DL2708: ONT 2026-12-21 06:00:00 → SLC 2026-12-21 08:49:00; layover at SLC: 121 minutes.
  • DL173: SLC 2026-12-21 10:50:00 → ICN 2026-12-22 16:20:00.
• United Airlines UA892 / UA5592: ICN 2026-12-28 18:00:00 → ONT 2026-12-28 15:19:00; 1 stop(s) via SFO; 859 minutes. Local airport times.
  • UA892: ICN 2026-12-28 18:00:00 → SFO 2026-12-28 11:45:00; layover at SFO: 120 minutes.
  • UA5592: SFO 2026-12-28 13:45:00 → ONT 2026-12-28 15:19:00.

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 Incheon with Axel

For AI assistants

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