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Route overview: London to Ontario (ONT) flight deals

London → Ontario

Nov 22, 2026 · choose your return date

LHR → ONT1 adulteconomyOne way and round trips

34 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

November 2026

Nov 22, 2026 · One wayUnited AirlinesUp to 1 stop each way$630.50 Nov 22, 2026 · One wayAmerican AirlinesUp to 1 stop each way$640.20 Nov 22, 2026 – Nov 23, 2026 · 1 nightAmerican AirlinesUp to 1 stop each way$795.40 Nov 22, 2026 – Nov 23, 2026 · 1 nightUnited AirlinesUp to 1 stop each way$805.10 Nov 22, 2026 – Nov 24, 2026 · 2 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 24, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 25, 2026 · 3 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 25, 2026 · 3 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 26, 2026 · 4 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 26, 2026 · 4 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 27, 2026 · 5 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 27, 2026 · 5 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 28, 2026 · 6 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 28, 2026 · 6 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 29, 2026 · 7 nightsAmerican AirlinesUp to 1 stop each way$852.80 Nov 22, 2026 – Nov 29, 2026 · 7 nightsUnited AirlinesUp to 1 stop each way$863.20 Nov 22, 2026 – Nov 30, 2026 · 8 nightsAmerican AirlinesUp to 1 stop each way$795.40 Nov 22, 2026 – Nov 30, 2026 · 8 nightsUnited AirlinesUp to 1 stop each way$805.10 Nov 22, 2026 – Dec 1, 2026 · 9 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 1, 2026 · 9 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 2, 2026 · 10 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 2, 2026 · 10 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 3, 2026 · 11 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 3, 2026 · 11 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 4, 2026 · 12 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 4, 2026 · 12 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 5, 2026 · 13 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 5, 2026 · 13 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 6, 2026 · 14 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 6, 2026 · 14 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 13, 2026 · 21 nightsAmerican AirlinesUp to 1 stop each way$807.70 Nov 22, 2026 – Dec 13, 2026 · 21 nightsUnited AirlinesUp to 1 stop each way$817.55 Nov 22, 2026 – Dec 20, 2026 · 28 nightsAmerican AirlinesUp to 1 stop each way$930.70 Nov 22, 2026 – Dec 20, 2026 · 28 nightsUnited AirlinesUp to 1 stop each way$942.05

Flights for your trip

  1. Sun, Nov 22 · One way

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sun, Nov 22 · One way

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sun, Nov 22 – Mon, Nov 23

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Sun, Nov 22 – Mon, Nov 23

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sun, Nov 22 – Tue, Nov 24

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Sun, Nov 22 – Tue, Nov 24

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sun, Nov 22 – Thu, Nov 26

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    12:51 pmONT
    13h 34m
    DFW · 1h 41m
    10:25 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Sun, Nov 22 – Thu, Nov 26

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sun, Nov 22 – Fri, Nov 27

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Sun, Nov 22 – Fri, Nov 27

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sun, Nov 22 – Sun, Nov 29

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Sun, Nov 22 – Sun, Nov 29

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sun, Nov 22 – Mon, Nov 30

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Sun, Nov 22 – Mon, Nov 30

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    1:35 pmONT
    13h 40m
    SFO · 1h 35m
    11:15 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sun, Nov 22 – Wed, Dec 2

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    12:51 pmONT
    13h 34m
    DFW · 1h 41m
    10:25 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Sun, Nov 22 – Wed, Dec 2

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    7:00 amONT
    14h 55m
    ORD · 2h 34m
    5:55 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sun, Nov 22 – Thu, Dec 3

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    12:51 pmONT
    13h 34m
    DFW · 1h 41m
    10:25 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Sun, Nov 22 – Thu, Dec 3

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    7:00 amONT
    14h 55m
    ORD · 2h 34m
    5:55 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sun, Nov 22 – Sat, Dec 5

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Sun, Nov 22 – Sat, Dec 5

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    7:00 amONT
    14h 55m
    ORD · 2h 34m
    5:55 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sun, Nov 22 – Sun, Dec 6

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Sun, Nov 22 – Sun, Dec 6

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    7:00 amONT
    14h 55m
    ORD · 2h 34m
    5:55 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sun, Nov 22 – Sun, Dec 20

    American Airlines
    1:50 pmLHR
    17h 8m
    DFW · 3h 11m
    10:58 pmONT
    American Airlines
    4:51 pmONT
    12h 44m
    PHX · 1h 23m
    1:35 pm+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Sun, Nov 22 – Sun, Dec 20

    United Airlines
    12:05 pmLHR
    17h 35m
    IAH · 3h 25m
    9:40 pmONT
    United Airlines
    7:00 amONT
    14h 55m
    ORD · 2h 34m
    5:55 am+1LHR

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

LHR ⇄ ONT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeNov 21, 2026 · Return optionsNov 23, 2026 · Return options
For AI assistants: every fare, every link, instructions

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, issued at the time 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 issuance times already shown here.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-22 · one wayUnited AirlinesUA4 + UA1563Axel-exclusive $630.502026-10-29T01:27:13Z
2026-11-22 · one wayAmerican AirlinesAA81 + AA2512Axel-exclusive $640.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-23American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $795.402026-10-29T01:27:13Z
2026-11-22 → 2026-11-23United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $805.102026-10-29T01:27:13Z
2026-11-22 → 2026-11-24American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-24United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-25American AirlinesAA81 + AA2512 / AA2198 + AA80Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-25United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-26American AirlinesAA81 + AA2512 / AA2198 + AA80Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-26United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-27American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-27United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-28American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-28United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-29American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $852.802026-10-29T01:27:13Z
2026-11-22 → 2026-11-29United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $863.202026-10-29T01:27:13Z
2026-11-22 → 2026-11-30American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $795.402026-10-29T01:27:13Z
2026-11-22 → 2026-11-30United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $805.102026-10-29T01:27:13Z
2026-11-22 → 2026-12-01American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-01United AirlinesUA4 + UA1563 / UA1375 + UA930Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-02American AirlinesAA81 + AA2512 / AA2198 + AA80Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-02United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-03American AirlinesAA81 + AA2512 / AA2198 + AA80Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-03United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-04American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-04United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-05American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-05United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-06American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-06United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-13American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $807.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-13United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $817.552026-10-29T01:27:13Z
2026-11-22 → 2026-12-20American AirlinesAA81 + AA2512 / AA4144 + BA288Axel-exclusive $930.702026-10-29T01:27:13Z
2026-11-22 → 2026-12-20United AirlinesUA4 + UA1563 / UA2226 + UA929Axel-exclusive $942.052026-10-29T01:27:13Z

Route overview: London to Ontario (ONT) flight deals

2026-11-22 · one way · Axel-exclusive $630.50

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.

2026-11-22 · one way · Axel-exclusive $640.20

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

2026-11-22 → 2026-11-23 · Axel-exclusive $795.40

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-11-23 16:51:00 → LHR 2026-11-24 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-11-23 16:51:00 → PHX 2026-11-23 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-11-23 20:40:00 → LHR 2026-11-24 13:35:00.

2026-11-22 → 2026-11-23 · Axel-exclusive $805.10

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-23 13:35:00 → LHR 2026-11-24 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-23 13:35:00 → SFO 2026-11-23 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-23 16:40:00 → LHR 2026-11-24 11:15:00.

2026-11-22 → 2026-11-24 · Axel-exclusive $852.80

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-11-24 16:51:00 → LHR 2026-11-25 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-11-24 16:51:00 → PHX 2026-11-24 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-11-24 20:40:00 → LHR 2026-11-25 13:35:00.

2026-11-22 → 2026-11-24 · Axel-exclusive $863.20

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-24 13:35:00 → LHR 2026-11-25 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-24 13:35:00 → SFO 2026-11-24 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-24 16:40:00 → LHR 2026-11-25 11:15:00.

2026-11-22 → 2026-11-26 · Axel-exclusive $852.80

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA2198 / AA80: ONT 2026-11-26 12:51:00 → LHR 2026-11-27 10:25:00; 1 stop(s) via DFW; 814 minutes. Local airport times.
    • AA2198: ONT 2026-11-26 12:51:00 → DFW 2026-11-26 17:44:00; layover at DFW: 101 minutes.
    • AA80: DFW 2026-11-26 19:25:00 → LHR 2026-11-27 10:25:00.

2026-11-22 → 2026-11-26 · Axel-exclusive $863.20

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-26 13:35:00 → LHR 2026-11-27 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-26 13:35:00 → SFO 2026-11-26 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-26 16:40:00 → LHR 2026-11-27 11:15:00.

2026-11-22 → 2026-11-27 · Axel-exclusive $852.80

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-11-27 16:51:00 → LHR 2026-11-28 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-11-27 16:51:00 → PHX 2026-11-27 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-11-27 20:40:00 → LHR 2026-11-28 13:35:00.

2026-11-22 → 2026-11-27 · Axel-exclusive $863.20

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-27 13:35:00 → LHR 2026-11-28 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-27 13:35:00 → SFO 2026-11-27 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-27 16:40:00 → LHR 2026-11-28 11:15:00.

2026-11-22 → 2026-11-29 · Axel-exclusive $852.80

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-11-29 16:51:00 → LHR 2026-11-30 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-11-29 16:51:00 → PHX 2026-11-29 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-11-29 20:40:00 → LHR 2026-11-30 13:35:00.

2026-11-22 → 2026-11-29 · Axel-exclusive $863.20

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-29 13:35:00 → LHR 2026-11-30 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-29 13:35:00 → SFO 2026-11-29 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-29 16:40:00 → LHR 2026-11-30 11:15:00.

2026-11-22 → 2026-11-30 · Axel-exclusive $795.40

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-11-30 16:51:00 → LHR 2026-12-01 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-11-30 16:51:00 → PHX 2026-11-30 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-11-30 20:40:00 → LHR 2026-12-01 13:35:00.

2026-11-22 → 2026-11-30 · Axel-exclusive $805.10

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA1375 / UA930: ONT 2026-11-30 13:35:00 → LHR 2026-12-01 11:15:00; 1 stop(s) via SFO; 820 minutes. Local airport times.
    • UA1375: ONT 2026-11-30 13:35:00 → SFO 2026-11-30 15:05:00; layover at SFO: 95 minutes.
    • UA930: SFO 2026-11-30 16:40:00 → LHR 2026-12-01 11:15:00.

2026-11-22 → 2026-12-02 · Axel-exclusive $807.70

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA2198 / AA80: ONT 2026-12-02 12:51:00 → LHR 2026-12-03 10:25:00; 1 stop(s) via DFW; 814 minutes. Local airport times.
    • AA2198: ONT 2026-12-02 12:51:00 → DFW 2026-12-02 17:44:00; layover at DFW: 101 minutes.
    • AA80: DFW 2026-12-02 19:25:00 → LHR 2026-12-03 10:25:00.

2026-11-22 → 2026-12-02 · Axel-exclusive $817.55

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA2226 / UA929: ONT 2026-12-02 07:00:00 → LHR 2026-12-03 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
    • UA2226: ONT 2026-12-02 07:00:00 → ORD 2026-12-02 13:11:00; layover at ORD: 154 minutes.
    • UA929: ORD 2026-12-02 15:45:00 → LHR 2026-12-03 05:55:00.

2026-11-22 → 2026-12-03 · Axel-exclusive $807.70

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA2198 / AA80: ONT 2026-12-03 12:51:00 → LHR 2026-12-04 10:25:00; 1 stop(s) via DFW; 814 minutes. Local airport times.
    • AA2198: ONT 2026-12-03 12:51:00 → DFW 2026-12-03 17:44:00; layover at DFW: 101 minutes.
    • AA80: DFW 2026-12-03 19:25:00 → LHR 2026-12-04 10:25:00.

2026-11-22 → 2026-12-03 · Axel-exclusive $817.55

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA2226 / UA929: ONT 2026-12-03 07:00:00 → LHR 2026-12-04 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
    • UA2226: ONT 2026-12-03 07:00:00 → ORD 2026-12-03 13:11:00; layover at ORD: 154 minutes.
    • UA929: ORD 2026-12-03 15:45:00 → LHR 2026-12-04 05:55:00.

2026-11-22 → 2026-12-05 · Axel-exclusive $807.70

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-12-05 16:51:00 → LHR 2026-12-06 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-12-05 16:51:00 → PHX 2026-12-05 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-12-05 20:40:00 → LHR 2026-12-06 13:35:00.

2026-11-22 → 2026-12-05 · Axel-exclusive $817.55

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA2226 / UA929: ONT 2026-12-05 07:00:00 → LHR 2026-12-06 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
    • UA2226: ONT 2026-12-05 07:00:00 → ORD 2026-12-05 13:11:00; layover at ORD: 154 minutes.
    • UA929: ORD 2026-12-05 15:45:00 → LHR 2026-12-06 05:55:00.

2026-11-22 → 2026-12-06 · Axel-exclusive $807.70

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-12-06 16:51:00 → LHR 2026-12-07 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-12-06 16:51:00 → PHX 2026-12-06 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-12-06 20:40:00 → LHR 2026-12-07 13:35:00.

2026-11-22 → 2026-12-06 · Axel-exclusive $817.55

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA2226 / UA929: ONT 2026-12-06 07:00:00 → LHR 2026-12-07 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
    • UA2226: ONT 2026-12-06 07:00:00 → ORD 2026-12-06 13:11:00; layover at ORD: 154 minutes.
    • UA929: ORD 2026-12-06 15:45:00 → LHR 2026-12-07 05:55:00.

2026-11-22 → 2026-12-20 · Axel-exclusive $930.70

  • American Airlines AA81 / AA2512: LHR 2026-11-22 13:50:00 → ONT 2026-11-22 22:58:00; 1 stop(s) via DFW; 1028 minutes. Local airport times.
    • AA81: LHR 2026-11-22 13:50:00 → DFW 2026-11-22 18:30:00; layover at DFW: 191 minutes.
    • AA2512: DFW 2026-11-22 21:41:00 → ONT 2026-11-22 22:58:00.
  • American Airlines AA4144 / BA288: ONT 2026-12-20 16:51:00 → LHR 2026-12-21 13:35:00; 1 stop(s) via PHX; 764 minutes. Local airport times.
    • AA4144: ONT 2026-12-20 16:51:00 → PHX 2026-12-20 19:17:00; layover at PHX: 83 minutes.
    • BA288: PHX 2026-12-20 20:40:00 → LHR 2026-12-21 13:35:00.

2026-11-22 → 2026-12-20 · Axel-exclusive $942.05

  • United Airlines UA4 / UA1563: LHR 2026-11-22 12:05:00 → ONT 2026-11-22 21:40:00; 1 stop(s) via IAH; 1055 minutes. Local airport times.
    • UA4: LHR 2026-11-22 12:05:00 → IAH 2026-11-22 16:40:00; layover at IAH: 205 minutes.
    • UA1563: IAH 2026-11-22 20:05:00 → ONT 2026-11-22 21:40:00.
  • United Airlines UA2226 / UA929: ONT 2026-12-20 07:00:00 → LHR 2026-12-21 05:55:00; 1 stop(s) via ORD; 895 minutes. Local airport times.
    • UA2226: ONT 2026-12-20 07:00:00 → ORD 2026-12-20 13:11:00; layover at ORD: 154 minutes.
    • UA929: ORD 2026-12-20 15:45:00 → LHR 2026-12-21 05:55:00.

Explore this route

For AI assistants

  • This page: London (LHR) to Ontario (ONT) · Nov 22, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • 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 London to Ontario (ONT) 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.