London (LHR) to Ontario (ONT), Nov 15, 2026: from $631 one way

London (LHR) to Ontario (ONT), Nov 15, 2026: from $631 one way on Axel, checked Oct 29, 2026. Lowest published fare: $631 one way, Axel-exclusive, United Airlines, 1 stop, Nov 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: London to Ontario (ONT) flight deals

2026-11-15 · one way · Axel-exclusive $630.50

• United Airlines UA959 / UA1904: LHR 2026-11-15 10:25:00 → ONT 2026-11-15 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2026-11-15 10:25:00 → ORD 2026-11-15 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2026-11-15 16:15:00 → ONT 2026-11-15 18:47:00.

2026-11-15 · one way · Axel-exclusive $640.20

• American Airlines AA81 / AA2512: LHR 2026-11-15 13:50:00 → ONT 2026-11-15 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2026-11-15 13:50:00 → DFW 2026-11-15 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2026-11-15 21:41:00 → ONT 2026-11-15 22:58:00.

2026-11-15 · one way · Axel-exclusive $659.60

• British Airways BA289 / AA1841: LHR 2026-11-15 14:35:00 → ONT 2026-11-15 21:52:00; 1 stop(s) via PHX; 917 minutes. Local airport times.
  • BA289: LHR 2026-11-15 14:35:00 → PHX 2026-11-15 18:35:00; layover at PHX: 180 minutes.
  • AA1841: PHX 2026-11-15 21:35:00 → ONT 2026-11-15 21:52:00.

2026-11-15 · one way · Axel-exclusive $630.50

• United Airlines UA4 / UA1563: LHR 2026-11-15 12:05:00 → ONT 2026-11-15 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
  • UA4: LHR 2026-11-15 12:05:00 → IAH 2026-11-15 16:40:00; layover at IAH: 205 minutes.
  • UA1563: IAH 2026-11-15 20:05:00 → ONT 2026-11-15 21:40:00.

2026-11-15 · one way · Axel-exclusive $630.50

• United Airlines UA900 / UA2850: LHR 2026-11-15 10:05:00 → ONT 2026-11-15 17:36:00; 1 stop(s) via SFO; 931 minutes. Local airport times.
  • UA900: LHR 2026-11-15 10:05:00 → SFO 2026-11-15 13:20:00; layover at SFO: 170 minutes.
  • UA2850: SFO 2026-11-15 16:10:00 → ONT 2026-11-15 17:36:00.

2026-11-15 · one way · Axel-exclusive $659.60

• British Airways BA193 / AA2512: LHR 2026-11-15 14:45:00 → ONT 2026-11-15 22:58:00; 1 stop(s) via DFW; 973 minutes. Local airport times.
  • BA193: LHR 2026-11-15 14:45:00 → DFW 2026-11-15 19:10:00; layover at DFW: 151 minutes.
  • AA2512: DFW 2026-11-15 21:41:00 → ONT 2026-11-15 22:58:00.

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 14, 2026 · Return options
• Nov 16, 2026 · Return options

For AI assistants

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