Cheap Flights from London to Ontario, CA from $282

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On Cheapflightsplus.com you will find 743 connecting flights from London to Ontario. You can compare airfare deals from 28 airlines and multiple travel sites from $282, book and save on cheap plane tickets and last minute offers. Also check out LON-ONT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip London to Ontario Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $282 (one-way), $484 (round-trip).

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Best Flights from London to Ontario Today

Take a look at the list of non stop flights and flights with layovers from London to Ontario with the lowest price of $282. Take a look at the list of flights with layovers from London to Ontario from $282. There’re no direct flights. The fastest connecting flight – 13h 22m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $328 Find flight	11:15 London Heathrow	17:52 Ontario Ontario Int.	14h 37m layover 2h 29m - Phoenix	British Airways	BA1526 BA6916
from $328 Find flight	08:20 London Heathrow	16:06 Ontario Ontario Int.	15h 46m layover 2h 44m - Dallas	British Airways	BA1504 BA5135
from $328 Find flight	10:30 London Heathrow	18:24 Ontario Ontario Int.	15h 54m layover 2h 50m - Dallas	British Airways	BA1590 BA2434
from $328 Find flight	08:20 London Heathrow	18:24 Ontario Ontario Int.	18h 4m layover 5h 5m - Dallas	British Airways	BA1504 BA2434
from $411 Find flight	15:10 London Heathrow	22:10 Ontario Ontario Int.	15h 0m layover 1h 50m - Dallas	British Airways	BA1573 BA2431
from $452 Find flight	15:10 London Heathrow	22:08 Ontario Ontario Int.	14h 58m layover 1h 44m - Dallas	Iberia	IB4739 IB4226
from $282 Find flight	14:00 London Gatwick	23:36+1 день Ontario Ontario Int.	41h 36m layover 13h 0m - Orlando 11h 43m - San Francisco	Z0	Z0783 F91645 F92678
from $308 Find flight	13:05 London Gatwick	20:51+1 день Ontario Ontario Int.	39h 46m layover 15h 4m - New York 10h 1m - Las Vegas	Z0	Z0701 F93237 F92231
from $310 Find flight	11:35 London Gatwick	22:48 Ontario Ontario Int.	19h 13m layover 1h 0m - Madrid 1h 38m - Dallas	British Airways	BA7195 BA4299 BA2433
from $313 Find flight	10:50 London Heathrow	22:48 Ontario Ontario Int.	19h 58m layover 1h 45m - Madrid 1h 38m - Dallas	British Airways	BA7055 BA4299 BA2433
from $313 Find flight	09:15 London Heathrow	22:48 Ontario Ontario Int.	21h 33m layover 3h 20m - Madrid 1h 38m - Dallas	British Airways	BA7053 BA4299 BA2433
from $313 Find flight	06:15 London Heathrow	22:48 Ontario Ontario Int.	24h 33m layover 6h 20m - Madrid 1h 38m - Dallas	British Airways	BA456 BA4299 BA2433
from $318 Find flight	13:05 London Gatwick	11:43+1 день Ontario Ontario Int.	30h 38m layover 15h 4m - New York 0h 42m - Las Vegas	Z0	Z0701 F93237 F94205
from $324 Find flight	19:20 London Gatwick	23:36+1 день Ontario Ontario Int.	36h 16m layover 13h 45m - Paris 8h 21m - San Francisco	Vueling	VY8945 BF714 F92678
from $326 Find flight	13:05 London Gatwick	19:12+1 день Ontario Ontario Int.	38h 7m layover 21h 22m - New York 1h 46m - Dallas	Z0	Z0701 F91511 F91405
from $331 Find flight	13:05 London Gatwick	11:52+1 день Ontario Ontario Int.	30h 47m layover 15h 4m - New York 0h 59m - Las Vegas	Z0	Z0701 F93237 F91357

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 22, 2025

Flight Schedule London to Ontario (California)

Full flight schedule will help you in detecting at what time planes fly from London to Ontario. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
08:20 — 16:06	08:20 — 12:20 BA1504 British Airways London — Dallas 2h 44m stop 22:55 — 23:59 BA5135 British Airways Dallas — Ontario	15h 46m including layover	Find flight from$328
08:20 — 18:24	08:20 — 12:30 BA1504 British Airways London — Dallas 5h 5m stop 17:30 — 18:36 BA2434 British Airways Dallas — Ontario	18h 4m including layover	Find flight from$328
09:50 — 18:28	09:50 — 11:35 BA53 British Airways London — Seattle 4h 13m stop 15:48 — 18:28 HA6668 Hawaiian Airlines Seattle — Ontario	16h 38m including layover	Find flight from$504
09:50 — 23:59	09:50 — 11:35 BA53 British Airways London — Seattle 9h 42m stop 21:30 — 00:13 HA6811 Hawaiian Airlines Seattle — Ontario	22h 9m including layover	Find flight from$504
10:30 — 18:24	10:30 — 14:35 BA1590 British Airways London — Dallas 2h 50m stop 18:00 — 19:01 BA2434 British Airways Dallas — Ontario	15h 54m including layover	Find flight from$328
10:30 — 22:14	10:30 — 14:40 BA1590 British Airways London — Dallas 6h 27m stop 21:48 — 22:48 BA2433 British Airways Dallas — Ontario	19h 44m including layover	Find flight from$366
11:15 — 17:52	11:15 — 14:20 BA1526 British Airways London — Phoenix 2h 29m stop 17:10 — 18:23 BA6916 British Airways Phoenix — Ontario	14h 37m including layover	Find flight from$328
11:15 — 21:38	11:15 — 14:20 BA1526 British Airways London — Phoenix 6h 15m stop 20:43 — 21:57 BA6915 British Airways Phoenix — Ontario	18h 23m including layover	Find flight from$423
12:00 — 22:34	12:00 — 16:15 BA1520 British Airways London — Dallas 5h 23m stop 22:41 — 23:43 BA2432 British Airways Dallas — Ontario	18h 34m including layover	Find flight from$411
12:00 — 22:10	12:00 — 16:05 BA1520 British Airways London — Dallas 4h 55m stop 21:00 — 22:14 BA2431 British Airways Dallas — Ontario	18h 10m including layover	Find flight from$423
13:25 — 23:59	13:25 — 15:45 KL4818 KLM London — Seattle 5h 32m stop 21:17 — 23:59 AS1040 Alaska Airlines Seattle — Ontario	18h 34m including layover	Find flight from$547
13:35 — 23:50	13:35 — 16:25 BA219 British Airways London — Denver 6h 4m stop 22:29 — 23:50 F91499 Frontier Airlines Denver — Ontario	18h 15m including layover	Find flight from$615
14:15 — 23:36	14:15 — 17:15 IB3628 Iberia London — San Francisco 4h 56m stop 22:11 — 23:36 F92678 Frontier Airlines San Francisco — Ontario	17h 21m including layover	Find flight from$621
15:10 — 22:14	15:10 — 19:20 BA1573 British Airways London — Dallas 1h 47m stop 21:48 — 22:48 BA2433 British Airways Dallas — Ontario	15h 4m including layover	Find flight from$366
15:10 — 22:10	15:10 — 19:20 BA1573 British Airways London — Dallas 1h 50m stop 21:00 — 22:14 BA2431 British Airways Dallas — Ontario	15h including layover	Find flight from$411
16:25 — 23:54	16:25 — 20:35 BA1530 British Airways London — Dallas 2h 20m stop 22:55 — 23:59 BA5135 British Airways Dallas — Ontario	15h 29m including layover	Find flight from$411
16:25 — 23:55	16:25 — 20:35 IB4207 Iberia London — Dallas 2h 25m stop 22:55 — 23:59 IB4830 Iberia Dallas — Ontario	15h 30m including layover	Find flight from$452
17:25 — 11:05 +1 day	17:25 — 19:45 KL6022 KLM London — Seattle 12h 42m stop 08:27 — 11:05 AS1254 Alaska Airlines Seattle — Ontario	25h 40m including layover	Find flight from$600
17:25 — 11:05 +1 day	17:25 — 19:45 VS4036 Virgin Atlantic Airways London — Seattle 12h 42m stop 08:27 — 11:05 AS1254 Alaska Airlines Seattle — Ontario	25h 40m including layover	Find flight from$602
18:30 — 16:36 +1 day	18:00 — 20:20 VS4036 Virgin Atlantic Airways London — Seattle 16h 52m stop 13:50 — 16:26 F93163 Frontier Airlines Seattle — Ontario	30h 6m including layover	Find flight from$612
18:30 — 11:05 +1 day	18:00 — 20:20 VS4036 Virgin Atlantic Airways London — Seattle 11h 37m stop 08:26 — 10:57 HA6814 Hawaiian Airlines Seattle — Ontario	24h 35m including layover	Find flight from$647

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on May 22, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from London to Ontario depends on and how to choose the most interesting flight option for you.

Distance between London and Ontario is 8723 miles. Time difference between the cities is 8h. Airplanes depart 06:00 to 22:30 from 10 London airports and arrive 06:00 to 22:30 to 2 Ontario airports. Average flight time is 26h 36m.

The fastest flight 13h 22m
Average flight time 26h 36m
The earliest flight 06:00
The latest flight 22:30
Distance 5421 ml

The cheapest months to travel to Ontario are may (from 376 $), june (from 396 $), august (from 414 $).

The most expensive months are december (from 3 871 $), november (from 3 810 $), february (from 1 908 $).

What is the lowest airfare London to Ontario?

The cheapest plane ticket found by our users is $282. This airfare is for economy class on one-way Z0783 flight by Z0 for May 30, 2025 which leaves Gatwick in London at 14:00 am and arrives at Ontario Ontario Int. at 23:36.

Economy class

$282

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First class

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Popular Airlines on the Route

The flight London — Ontario is served by 28 regular airlines and 5 low-cost airlines. Most of the flights on this route are operated by Wizz Air UK - 8 departures per week at the price of from $ 686 . And the most expensive tickets are offered by Air Canada airline - from $ 4659.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 743 flights with layovers on the route. The fastest connecting flight is VS4019 by Virgin Atlantic Airways takes 13h 22m and the cheapest is Z0783 by Z0 for $282.

W9 - Wizz Air UK

from $686

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VY - Vueling

from $324

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FI - Icelandair

from $531

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UA - United Airlines

from $807

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LX - SWISS International Air Lines

from $1295

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Z0 - Z0

from $282

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SK - SAS

from $501

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OG - Air Onix

from $527

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IB - Iberia

from $452

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SN - Brussels Airlines

from $1369

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WS - WestJet

from $561

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KL - KLM

from $457

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Airports

You can fly from London to Ontario from 10 airports (London City, London-Waterloo, Heathrow, Luton, British Rail Terminal, London Biggin Hill, Stansted, Gatwick, Ebbsfleet International Rail St, Stratford International Rail St).

London airports

London City-LCY

from $677
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London-Waterloo-QQW

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Heathrow-LHR

from $313
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Luton-LTN

from $1490
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British Rail Terminal-ZLX

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London Biggin Hill-BQH

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Stansted-STN

from $527
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Gatwick-LGW

from $282
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Ebbsfleet International Rail St-XQE

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Stratford International Rail St-XOF

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Ontario airports

Ontario Int.-ONT

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International Heliport-JIO

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Airplanes

There are flights to Ontario from London by 28 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top International Destinations from London

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

London — Miami

from $55

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London — Boston

from $75

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London — Los Angeles

from $313

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London — Chicago

from $70

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London — Las Vegas

from $60

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London — Orlando

from $79

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London — Seattle

from $57

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London — San Francisco

from $58

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London — Atlanta

from $69

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London — Denver

from $59

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
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That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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