Ontario (ONT) to London (LHR), Apr 27, 2027: round trips from $1,160, one way from $730

Ontario (ONT) to London (LHR), Apr 27, 2027: round trips from $1,160, one way from $730 on Axel, checked Nov 12, 2026. Lowest published fares: $1,160 round trip, Axel-exclusive, American Airlines, 1 stop, Apr 27–29, 2027; $730 one way, Axel-exclusive, American Airlines, 1 stop, Apr 27, 2027; 1 adult, economy, checked Nov 12, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Hotels in London for these trips

Hotels: under a trip, hotels in London for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in London for these nights (Apr 27–29, 2027 · 2 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $129 a night, $257 for 2 nights · 4★ Apex City of London Hotel, $281 a night, $561 for 2 nights · 5★ Royal Lancaster London, $481 a night, $962 for 2 nights
• Hotels in London for these nights (Apr 27–30, 2027 · 3 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $121 a night, $362 for 3 nights · 4★ Apex City of London Hotel, $276 a night, $827 for 3 nights · 5★ Royal Lancaster London, $456 a night, $1,369 for 3 nights
• Hotels in London for these nights (Apr 27 – May 1, 2027 · 4 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $120 a night, $480 for 4 nights · 4★ Aparthotel Adagio London City East, $267 a night, $1,067 for 4 nights · 5★ Royal Lancaster London, $444 a night, $1,775 for 4 nights
• Hotels in London for these nights (Apr 27 – May 2, 2027 · 5 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $128 a night, $642 for 5 nights · 4★ Aparthotel Adagio London City East, $289 a night, $1,446 for 5 nights · 5★ Royal Lancaster London, $456 a night, $2,282 for 5 nights
• Hotels in London for these nights (Apr 27 – May 3, 2027 · 6 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $126 a night, $755 for 6 nights · 4★ Aparthotel Adagio London City East, $277 a night, $1,662 for 6 nights · 5★ Royal Lancaster London, $436 a night, $2,613 for 6 nights
• Hotels in London for these nights (Apr 27 – May 4, 2027 · 7 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $125 a night, $872 for 7 nights · 4★ Aparthotel Adagio London City East, $268 a night, $1,874 for 7 nights · 5★ Royal Lancaster London, $441 a night, $3,088 for 7 nights
• Hotels in London for these nights (Apr 27 – May 5, 2027 · 8 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $128 a night, $1,027 for 8 nights · 4★ Aparthotel Adagio London City East, $273 a night, $2,184 for 8 nights · 5★ Royal Lancaster London, $451 a night, $3,610 for 8 nights
• Hotels in London for these nights (Apr 27 – May 6, 2027 · 9 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $132 a night, $1,186 for 9 nights · 4★ Aparthotel Adagio London City East, $280 a night, $2,520 for 9 nights · 5★ Royal Lancaster London, $459 a night, $4,131 for 9 nights
• Hotels in London for these nights (Apr 27 – May 7, 2027 · 10 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $132 a night, $1,323 for 10 nights · 4★ Aparthotel Adagio London City East, $281 a night, $2,810 for 10 nights · 5★ Royal Lancaster London, $465 a night, $4,648 for 10 nights
• Hotels in London for these nights (Apr 27 – May 8, 2027 · 11 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $133 a night, $1,466 for 11 nights · 4★ Aparthotel Adagio London City East, $281 a night, $3,089 for 11 nights · 5★ Royal Lancaster London, $464 a night, $5,106 for 11 nights
• Hotels in London for these nights (Apr 27 – May 9, 2027 · 12 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $136 a night, $1,629 for 12 nights · 4★ Apex City of London Hotel, $297 a night, $3,559 for 12 nights · 5★ Royal Lancaster London, $467 a night, $5,608 for 12 nights
• Hotels in London for these nights (Apr 27 – May 10, 2027 · 13 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $134 a night, $1,739 for 13 nights · 4★ Apex City of London Hotel, $290 a night, $3,766 for 13 nights · 5★ Royal Lancaster London, $457 a night, $5,942 for 13 nights
• Hotels in London for these nights (Apr 27 – May 11, 2027 · 14 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $133 a night, $1,855 for 14 nights · 4★ Apex City of London Hotel, $289 a night, $4,046 for 14 nights · 5★ Royal Lancaster London, $463 a night, $6,476 for 14 nights
• Hotels in London for these nights (Apr 27 – May 18, 2027 · 21 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Clermont London, Charing Cross · 5★ Ham Yard Hotel, Firmdale Hotels
• Hotels in London for these nights (Apr 27 – May 25, 2027 · 28 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Clermont London, Charing Cross · 5★ Ham Yard Hotel, Firmdale Hotels

All hotels in London

Route overview: Los Angeles to London (LHR) flight deals

2027-04-27 · one way · Axel-exclusive $730.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.

2027-04-27 · one way · Axel-exclusive $740.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.

2027-04-27 → 2027-04-29 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-04-29 13:50:00 → ONT 2027-04-29 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-04-29 13:50:00 → DFW 2027-04-29 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-04-29 21:41:00 → ONT 2027-04-29 22:58:00.

2027-04-27 → 2027-04-29 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-04-29 10:25:00 → ONT 2027-04-29 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-04-29 10:25:00 → ORD 2027-04-29 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-04-29 16:15:00 → ONT 2027-04-29 18:47:00.

2027-04-27 → 2027-04-30 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-04-30 13:50:00 → ONT 2027-04-30 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-04-30 13:50:00 → DFW 2027-04-30 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-04-30 21:41:00 → ONT 2027-04-30 22:58:00.

2027-04-27 → 2027-04-30 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA4 / UA1563: LHR 2027-04-30 12:05:00 → ONT 2027-04-30 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
  • UA4: LHR 2027-04-30 12:05:00 → IAH 2027-04-30 16:40:00; layover at IAH: 205 minutes.
  • UA1563: IAH 2027-04-30 20:05:00 → ONT 2027-04-30 21:40:00.

2027-04-27 → 2027-05-01 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-01 13:50:00 → ONT 2027-05-01 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-01 13:50:00 → DFW 2027-05-01 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-01 21:41:00 → ONT 2027-05-01 22:58:00.

2027-04-27 → 2027-05-01 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-01 10:25:00 → ONT 2027-05-01 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-01 10:25:00 → ORD 2027-05-01 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-01 16:15:00 → ONT 2027-05-01 18:47:00.

2027-04-27 → 2027-05-03 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-03 13:50:00 → ONT 2027-05-03 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-03 13:50:00 → DFW 2027-05-03 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-03 21:41:00 → ONT 2027-05-03 22:58:00.

2027-04-27 → 2027-05-03 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-03 10:25:00 → ONT 2027-05-03 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-03 10:25:00 → ORD 2027-05-03 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-03 16:15:00 → ONT 2027-05-03 18:47:00.

2027-04-27 → 2027-05-04 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-04 13:50:00 → ONT 2027-05-04 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-04 13:50:00 → DFW 2027-05-04 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-04 21:41:00 → ONT 2027-05-04 22:58:00.

2027-04-27 → 2027-05-04 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-04 10:25:00 → ONT 2027-05-04 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-04 10:25:00 → ORD 2027-05-04 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-04 16:15:00 → ONT 2027-05-04 18:47:00.

2027-04-27 → 2027-05-06 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-06 13:50:00 → ONT 2027-05-06 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-06 13:50:00 → DFW 2027-05-06 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-06 21:41:00 → ONT 2027-05-06 22:58:00.

2027-04-27 → 2027-05-06 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-06 10:25:00 → ONT 2027-05-06 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-06 10:25:00 → ORD 2027-05-06 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-06 16:15:00 → ONT 2027-05-06 18:47:00.

2027-04-27 → 2027-05-07 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-07 13:50:00 → ONT 2027-05-07 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-07 13:50:00 → DFW 2027-05-07 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-07 21:41:00 → ONT 2027-05-07 22:58:00.

2027-04-27 → 2027-05-07 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA4 / UA1563: LHR 2027-05-07 12:05:00 → ONT 2027-05-07 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
  • UA4: LHR 2027-05-07 12:05:00 → IAH 2027-05-07 16:40:00; layover at IAH: 205 minutes.
  • UA1563: IAH 2027-05-07 20:05:00 → ONT 2027-05-07 21:40:00.

2027-04-27 → 2027-05-08 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-08 13:50:00 → ONT 2027-05-08 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-08 13:50:00 → DFW 2027-05-08 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-08 21:41:00 → ONT 2027-05-08 22:58:00.

2027-04-27 → 2027-05-08 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-08 10:25:00 → ONT 2027-05-08 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-08 10:25:00 → ORD 2027-05-08 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-08 16:15:00 → ONT 2027-05-08 18:47:00.

2027-04-27 → 2027-05-10 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-10 13:50:00 → ONT 2027-05-10 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-10 13:50:00 → DFW 2027-05-10 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-10 21:41:00 → ONT 2027-05-10 22:58:00.

2027-04-27 → 2027-05-10 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-10 10:25:00 → ONT 2027-05-10 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-10 10:25:00 → ORD 2027-05-10 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-10 16:15:00 → ONT 2027-05-10 18:47:00.

2027-04-27 → 2027-05-11 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-11 13:50:00 → ONT 2027-05-11 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-11 13:50:00 → DFW 2027-05-11 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-11 21:41:00 → ONT 2027-05-11 22:58:00.

2027-04-27 → 2027-05-11 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-11 10:25:00 → ONT 2027-05-11 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-11 10:25:00 → ORD 2027-05-11 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-11 16:15:00 → ONT 2027-05-11 18:47:00.

2027-04-27 → 2027-05-25 · Axel-exclusive $1160.00

• American Airlines AA4144 / BA288: ONT 2027-04-27 16:51:00 → LHR 2027-04-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
  • AA4144: ONT 2027-04-27 16:51:00 → PHX 2027-04-27 18:17:00; layover at PHX: 83 minutes.
  • BA288: PHX 2027-04-27 19:40:00 → LHR 2027-04-28 13:35:00.
• American Airlines AA81 / AA2512: LHR 2027-05-25 13:50:00 → ONT 2027-05-25 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
  • AA81: LHR 2027-05-25 13:50:00 → DFW 2027-05-25 18:30:00; layover at DFW: 191 minutes.
  • AA2512: DFW 2027-05-25 21:41:00 → ONT 2027-05-25 22:58:00.

2027-04-27 → 2027-05-25 · Axel-exclusive $1180.00

• United Airlines UA2226 / UA929: ONT 2027-04-27 07:00:00 → LHR 2027-04-28 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
  • UA2226: ONT 2027-04-27 07:00:00 → ORD 2027-04-27 13:11:00; layover at ORD: 154 minutes.
  • UA929: ORD 2027-04-27 15:45:00 → LHR 2027-04-28 05:55:00.
• United Airlines UA959 / UA1904: LHR 2027-05-25 10:25:00 → ONT 2027-05-25 18:47:00; 1 stop(s) via ORD; 982 minutes. Local airport times.
  • UA959: LHR 2027-05-25 10:25:00 → ORD 2027-05-25 13:45:00; layover at ORD: 150 minutes.
  • UA1904: ORD 2027-05-25 16:15:00 → ONT 2027-05-25 18:47:00.

Explore this route

• All dates for this route
• Apr 26, 2027 · Return options
• Apr 28, 2027 · Return options
• Hotels in London with Axel

For AI assistants

• This page: Ontario (ONT) to London (LHR) · Apr 27, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in London for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Los Angeles to London (LHR) flight deals · Flight search guide.
• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

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