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Cheap flight deals from London to Ontario Starting at AED 1,077

Discover our range of affordable one-way and round-trip flights from London to Ontario and kick-start your next adventure today!

  • One way
  • Round-trip
      • LGW12:00
        27h 26m
        1 stop
        ONT07:26
        Sun, Mar 2|London - Ontario|Norse Atlantic Airways
        AED 1,077AED 1,743
        38% OFF
        38% OFF
        AED 1,743AED 1,077

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Sun, Mar 2, arriving at Ontario International Airport. One-way Prices start from AED 1,077 including taxes and charges.

      • LGW12:00
        26h 26m
        1 stop
        ONT07:26
        Thu, Mar 27|London - Ontario|Norse Atlantic Airways
        AED 1,082AED 1,743
        38% OFF
        38% OFF
        AED 1,743AED 1,082

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Thu, Mar 27, arriving at Ontario International Airport. One-way Prices start from AED 1,082 including taxes and charges.

      • LGW12:00
        34h 4m
        1 stop
        ONT15:04
        Tue, Mar 11|London - Ontario|Norse Atlantic Airways
        AED 1,087AED 1,743
        38% OFF
        38% OFF
        AED 1,743AED 1,087

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Tue, Mar 11, arriving at Ontario International Airport. One-way Prices start from AED 1,087 including taxes and charges.

      • LGW12:00
        27h 26m
        1 stop
        ONT07:26
        Sun, Feb 23|London - Ontario|Norse Atlantic Airways
        AED 1,088
        AED 1,088

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Sun, Feb 23, arriving at Ontario International Airport. One-way Prices start from AED 1,088 including taxes and charges.

      • LGW12:00
        35h 19m
        1 stop
        ONT15:19
        Tue, Feb 25|London - Ontario|Norse Atlantic Airways
        AED 1,104
        AED 1,104

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Tue, Feb 25, arriving at Ontario International Airport. One-way Prices start from AED 1,104 including taxes and charges.

      • LGW12:00
        35h 19m
        1 stop
        ONT15:19
        Tue, Mar 4|London - Ontario|Norse Atlantic Airways
        AED 1,129
        AED 1,129

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Tue, Mar 4, arriving at Ontario International Airport. One-way Prices start from AED 1,129 including taxes and charges.

      • LGW12:00
        34h 4m
        1 stop
        ONT15:04
        Tue, Mar 18|London - Ontario|Norse Atlantic Airways
        AED 1,136
        AED 1,136

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Tue, Mar 18, arriving at Ontario International Airport. One-way Prices start from AED 1,136 including taxes and charges.

      • LGW12:00
        26h 26m
        1 stop
        ONT07:26
        Thu, Mar 13|London - Ontario|Norse Atlantic Airways
        AED 1,140
        AED 1,140

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Thu, Mar 13, arriving at Ontario International Airport. One-way Prices start from AED 1,140 including taxes and charges.

      • LGW12:00
        34h 4m
        1 stop
        ONT15:04
        Tue, Mar 25|London - Ontario|Norse Atlantic Airways
        AED 1,189
        AED 1,189

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Tue, Mar 25, arriving at Ontario International Airport. One-way Prices start from AED 1,189 including taxes and charges.

      • LGW12:00
        27h 26m
        1 stop
        ONT07:26
        Thu, Mar 6|London - Ontario|Norse Atlantic Airways
        AED 1,194
        AED 1,194

        Choose Norse Atlantic Airways flights from London to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from London Gatwick Airport on Thu, Mar 6, arriving at Ontario International Airport. One-way Prices start from AED 1,194 including taxes and charges.

      • LON01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Sat, Mar 1|London - Ontario|Norse Atlantic Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

London to Los Angeles flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA900

    United Airlines

    10:05

    LHR

    10.2h

    13:15

    SFO

    SMTWTFS
    Search

  2. UA5587

    United Airlines

    17:00

    SFO

    1.5h

    18:31

    ONT

    SMTWTFS

  3. UA026

    United Airlines

    11:35

    LHR

    8.8h

    14:25

    DEN

    SMTWTFS
    Search

  4. UA351

    United Airlines

    19:25

    DEN

    2.5h

    20:52

    ONT

    SMTWTFS

  5. Z0777

    Norse Atlantic Airways

    11:59

    LGW

    10.7h

    14:40

    LAS

    -M-W--S
    Search

  6. F91357

    Frontier Airlines

    13:40

    LAS

    1.1h

    14:48

    ONT

    SMTW-FS

  7. Z0777

    Norse Atlantic Airways

    11:59

    LGW

    10.7h

    14:40

    LAS

    -M-W--S
    Search

  8. F94757

    Frontier Airlines

    11:20

    LAS

    1.1h

    12:29

    ONT

    SMT-T--

  9. UA004

    United Airlines

    12:50

    LHR

    9.7h

    17:30

    IAH

    SMTWTFS
    Search

  10. UA1563

    United Airlines

    20:00

    IAH

    3.4h

    21:21

    ONT

    SMTWTFS

  11. VS105

    Virgin Atlantic

    13:25

    LHR

    10.3h

    15:45

    SEA

    SMTWTFS
    Search

  12. VS5376

    Virgin Atlantic

    19:55

    SEA

    2.8h

    22:40

    ONT

    SMTWTFS

  13. VS105

    Virgin Atlantic

    13:25

    LHR

    10.3h

    15:45

    SEA

    SMTWTFS
    Search

  14. DL4027

    Delta Air Lines

    19:55

    SEA

    2.7h

    22:38

    ONT

    SMTWTFS

  15. UA949

    United Airlines

    13:45

    LHR

    10.2h

    16:55

    SFO

    SMTWTFS
    Search

  16. UA794

    United Airlines

    19:10

    SFO

    1.5h

    20:40

    ONT

    SMTWTFS

  17. Z0723

    Norse Atlantic Airways

    14:00

    LGW

    9.8h

    18:45

    MIA

    S---T--
    Search

  18. F92675

    Frontier Airlines

    06:30

    MIA

    3.3h

    08:48

    DFW

    S-TWT-S

  19. F91405

    Frontier Airlines

    17:49

    DFW

    3.1h

    18:58

    ONT

    SMTWTFS

  20. Z0783

    Norse Atlantic Airways

    14:00

    LGW

    9.4h

    18:25

    MCO

    S--W-F-
    Search

  21. F91417

    Frontier Airlines

    09:18

    MCO

    2.9h

    11:13

    IAH

    SMTWTFS

  22. F93131

    Frontier Airlines

    12:07

    IAH

    3.6h

    13:43

    ONT

    S-T-T--
Find more flights and airlines

When is the cheapest time to fly from London to Ontario?

Explore the best time to buy affordable tickets to Ontario with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from London (LON) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from London to Ontario based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from London (LON) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around AED 4,560.

  • What's the most popular airline for non-stop flights from London (LON) to Ontario (ONT)?

    British Airways operates 1 non-stop flights from London (LON) to Ontario (ONT).

How to find a cheap flight from London to Ontario

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Being flexible with your dates to get the cheapest London to Ontario ticket.
Tap "Date" on flight search bar to scan through the calender for London to Ontario airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sun, Mar 2 at AED 1077 for one-way flights.
2
Compare cheap London to Ontario flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from London to Ontario. The cheapest airline operating is Norse Atlantic Airways.
3
Set up a Price Alert
By setting up a Price Alert for your London to Ontario route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap London to Ontario flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from London to Ontario to get exclusive deals for you.

Flight Info | London to Ontario

Cheapest direct flight priceAED 1,076
Cheapest return ticket priceAED 1,805
Off-season for travelFebruary
Peak season for travelSeptember
Flight distance5,726.56 km
Popular airlineAmerican Airlines

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