Cheap Flights from London to Ontario, CA from $429

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On Cheapflightsplus.com you will find 58 connecting flights from London to Ontario. You can compare airfare deals from 18 airlines and multiple travel sites from $429, 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: $429 (one-way), $736 (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 $429. Take a look at the list of flights with layovers from London to Ontario from $429. There’re no direct flights. The fastest connecting flight – 15h 5m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $963 Find flight	12:25 London Heathrow	19:37 Ontario Ontario Int.	15h 12m layover 2h 50m - Denver	Iberia	IB3592 F92907
from $429 Find flight	13:00 London Gatwick	13:01+1 день Ontario Ontario Int.	32h 1m layover 15h 9m - New York 2h 24m - Las Vegas	Z0	Z0701 F93237 F91357
from $599 Find flight	07:15 London Luton	23:39 Ontario Ontario Int.	24h 24m layover 6h 30m - Reykjavik 4h 15m - Denver	EasyJet	U22643 FI671 F91499
from $599 Find flight	11:00 London Stansted	06:30+1 день Ontario Ontario Int.	27h 30m layover 2h 50m - Reykjavik 11h 6m - Denver	Air Onix	OG801 FI671 F91261
from $682 Find flight	11:00 London Stansted	23:39 Ontario Ontario Int.	20h 39m layover 2h 50m - Reykjavik 4h 15m - Denver	Air Onix	OG801 FI671 F91499
from $710 Find flight	20:45 London Heathrow	07:08+2 дня Ontario Ontario Int.	42h 23m layover 17h 15m - Dublin 12h 10m - Las Vegas	Aer Lingus	EI179 EI51 F91283
from $722 Find flight	11:55 London Gatwick	23:39 Ontario Ontario Int.	19h 44m layover 1h 35m - Reykjavik 4h 15m - Denver	Icelandair	FI471 FI671 F91499
from $722 Find flight	19:30 London Heathrow	06:36+2 дня Ontario Ontario Int.	43h 6m layover 14h 50m - Copenhagen 13h 35m - San Francisco	SAS	SK1508 SK935 F92678
from $772 Find flight	14:50 London Heathrow	15:58+1 день Ontario Ontario Int.	33h 8m layover 2h 30m - Calgary 17h 21m - Phoenix	WestJet	WS19 WS1536 F91625
from $784 Find flight	11:40 London Gatwick	09:06+1 день Ontario Ontario Int.	29h 26m layover 5h 0m - Toronto 9h 47m - Las Vegas	Air Transat	TS123 WS1118 F94757
from $815 Find flight	12:15 London Heathrow	23:39 Ontario Ontario Int.	19h 24m layover 1h 25m - Reykjavik 4h 15m - Denver	Icelandair	FI451 FI671 F91499
from $819 Find flight	15:05 London Gatwick	16:30+2 дня Ontario Ontario Int.	57h 25m layover 22h 35m - Reykjavik 20h 53m - Seattle	EasyJet	U28843 FI681 F93163
from $853 Find flight	12:15 London Heathrow	06:30+1 день Ontario Ontario Int.	26h 15m layover 1h 25m - Reykjavik 11h 6m - Denver	Icelandair	FI451 FI671 F91261
from $858 Find flight	15:05 London Gatwick	11:02+2 дня Ontario Ontario Int.	51h 57m layover 22h 35m - Reykjavik 15h 25m - Seattle	EasyJet	U28843 FI681 AS1254
from $894 Find flight	21:40 London Heathrow	21:00+1 день Ontario Ontario Int.	31h 20m layover 9h 15m - Bogota 2h 30m - San Salvador	Avianca	AV121 AV130 AV530
from $983 Find flight	16:10 London Luton	06:36+2 дня Ontario Ontario Int.	46h 26m layover 8h 50m - Istanbul 18h 10m - San Francisco	Wizz Air UK	W95327 TK289 F92678

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on February 23, 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 — 18:01	08:20 — 12:40 BA1504 British Airways London — Dallas 3h 45m stop 17:19 — 18:33 BA2434 British Airways Dallas — Ontario	17h 41m including layover	Find flight from$1590
08:20 — 23:55	08:20 — 12:40 BA1504 British Airways London — Dallas 9h 40m stop 22:42 — 23:57 BA2432 British Airways Dallas — Ontario	23h 35m including layover	Find flight from$1590
09:25 — 18:01	09:25 — 13:50 BA1520 British Airways London — Dallas 2h 40m stop 17:19 — 18:33 BA2434 British Airways Dallas — Ontario	16h 36m including layover	Find flight from$1590
21:15 — 16:50 +1 day	21:15 — 18:15 CI82 China Airlines London — Taipei 3h 10m stop 21:25 — 16:50 CI24 China Airlines Taipei — Ontario	27h 35m including layover	Find flight from$1517
06:25 — 23:55	06:25 — 09:55 BA456 British Airways London — Madrid 5h 25m stop 15:20 — 19:55 BA4299 British Airways Madrid — Dallas 2h 35m stop 22:30 — 23:55 BA2432 British Airways Dallas — Ontario	25h 30m including layover	Find flight from$1573
06:25 — 23:55	06:25 — 09:55 BA456 British Airways London — Madrid 3h 5m stop 13:00 — 17:00 BA1513 British Airways Madrid — Dallas 5h 30m stop 22:30 — 23:55 BA2432 British Airways Dallas — Ontario	25h 30m including layover	Find flight from$1573
07:15 — 23:39	06:25 — 09:35 U22643 EasyJet London — Reykjavik 6h 30m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 4h 15m stop 22:38 — 00:04 F91499 Frontier Airlines Denver — Ontario	24h 24m including layover	Find flight from$599
07:15 — 06:30 +1 day	07:15 — 10:25 U22643 EasyJet London — Reykjavik 6h 30m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 11h 6m stop 05:11 — 06:30 F91261 Frontier Airlines Denver — Ontario	31h 15m including layover	Find flight from$644
09:15 — 23:55	09:15 — 12:40 BA7053 British Airways London — Madrid 2h 40m stop 16:00 — 20:35 BA4299 British Airways Madrid — Dallas 2h 35m stop 22:40 — 23:58 BA2432 British Airways Dallas — Ontario	22h 40m including layover	Find flight from$1573
10:00 — 23:55	10:00 — 13:25 BA468 British Airways London — Madrid 1h 55m stop 15:20 — 19:55 BA4299 British Airways Madrid — Dallas 2h 35m stop 22:30 — 23:55 BA2432 British Airways Dallas — Ontario	21h 55m including layover	Find flight from$1573
10:05 — 23:55	10:05 — 13:30 BA7055 British Airways London — Madrid 1h 50m stop 16:00 — 20:35 BA4299 British Airways Madrid — Dallas 2h 35m stop 22:40 — 23:58 BA2432 British Airways Dallas — Ontario	21h 50m including layover	Find flight from$1573
11:00 — 06:30 +1 day	11:00 — 14:05 OG801 Air Onix London — Reykjavik 2h 50m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 11h 6m stop 08:45 — 10:11 F91261 Frontier Airlines Denver — Ontario	27h 30m including layover	Find flight from$599
11:00 — 23:39	11:00 — 14:05 OG801 Air Onix London — Reykjavik 2h 50m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 4h 15m stop 22:17 — 23:43 F91499 Frontier Airlines Denver — Ontario	20h 39m including layover	Find flight from$682
12:15 — 23:39	12:15 — 15:30 FI451 Icelandair London — Reykjavik 1h 25m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 4h 15m stop 22:17 — 23:43 F91499 Frontier Airlines Denver — Ontario	19h 24m including layover	Find flight from$815
12:15 — 06:30 +1 day	12:15 — 15:30 FI451 Icelandair London — Reykjavik 1h 25m stop 16:55 — 18:05 FI671 Icelandair Reykjavik — Denver 11h 6m stop 05:11 — 06:30 F91261 Frontier Airlines Denver — Ontario	26h 15m including layover	Find flight from$853
13:00 — 13:01 +1 day	13:00 — 15:50 Z0701 Z0 London — New York 15h 9m stop 07:59 — 11:00 F93237 Frontier Airlines New York — Las Vegas 2h 24m stop 13:56 — 15:06 F91357 Frontier Airlines Las Vegas — Ontario	32h 1m including layover	Find flight from$429
13:00 — 20:40 +1 day	13:00 — 14:50 AC861 Air Canada London — Vancouver 22h 20m stop 13:10 — 15:35 AC566 Air Canada Vancouver — San Francisco 3h 35m stop 22:50 — 00:18 AC4122 Air Canada San Francisco — Ontario	39h 40m including layover	Find flight from$1521
14:05 — 16:50 +1 day	14:05 — 01:00 EK66 Emirates London — Dubai 2h 40m stop 03:40 — 15:35 EK366 Emirates Dubai — Taipei 5h 50m stop 21:25 — 16:50 CI24 China Airlines Taipei — Ontario	34h 45m including layover	Find flight from$1551
14:50 — 15:58 +1 day	14:50 — 16:40 WS19 WestJet London — Calgary 2h 30m stop 19:10 — 22:24 WS1536 WestJet Calgary — Phoenix 17h 21m stop 15:45 — 15:58 F91625 Frontier Airlines Phoenix — Ontario	33h 8m including layover	Find flight from$772
15:05 — 16:30 +2 days	15:05 — 18:30 U28843 EasyJet London — Reykjavik 22h 35m stop 17:05 — 17:00 FI681 Icelandair Reykjavik — Seattle 20h 53m stop 13:53 — 16:30 F93163 Frontier Airlines Seattle — Ontario	57h 25m including layover	Find flight from$819
15:05 — 11:02 +2 days	15:05 — 18:30 U28843 EasyJet London — Reykjavik 22h 35m stop 17:05 — 17:00 FI681 Icelandair Reykjavik — Seattle 15h 25m stop 08:25 — 11:02 AS1254 Alaska Airlines Seattle — Ontario	51h 57m including layover	Find flight from$858
16:10 — 06:36 +2 days	16:10 — 23:15 W95327 Wizz Air UK London — Istanbul 8h 50m stop 08:05 — 11:05 TK289 Turkish Airlines Istanbul — San Francisco 18h 10m stop 05:15 — 06:36 F92678 Frontier Airlines San Francisco — Ontario	46h 26m including layover	Find flight from$983
16:30 — 23:01 +1 day	16:30 — 20:05 U22305 EasyJet London — Madrid 17h 25m stop 13:30 — 19:15 AM39 Aeromexico Madrid — Guadalajara 2h 25m stop 21:40 — 23:01 Y41860 Volaris Guadalajara — Ontario	38h 31m including layover	Find flight from$1014
17:00 — 23:01 +1 day	17:00 — 20:30 U26387 EasyJet London — Madrid 17h stop 13:30 — 19:15 AM39 Aeromexico Madrid — Guadalajara 2h 25m stop 21:40 — 23:01 Y41860 Volaris Guadalajara — Ontario	38h 1m including layover	Find flight from$1020
17:40 — 16:50 +1 day	17:40 — 11:55 CA856 Air China Limited London — Beijing 2h 20m stop 14:15 — 17:20 CA189 Air China Limited Beijing — Taipei 4h 5m stop 21:25 — 16:50 CI24 China Airlines Taipei — Ontario	31h 10m including layover	Find flight from$1249
18:00 — 14:30 +1 day	18:00 — 21:00 AC859 Air Canada London — Toronto 9h 30m stop 06:30 — 09:34 AC4105 Air Canada Toronto — San Francisco 3h 23m stop 13:06 — 14:34 AC4548 Air Canada San Francisco — Ontario	28h 30m including layover	Find flight from$1596
19:25 — 06:36 +2 days	19:25 — 20:45 BA4470 British Airways London — Dublin 15h 45m stop 12:30 — 15:30 EI61 Aer Lingus Dublin — San Francisco 13h 45m stop 05:15 — 06:36 F92678 Frontier Airlines San Francisco — Ontario	43h 11m including layover	Find flight from$997
19:30 — 06:36 +2 days	19:30 — 22:25 SK1508 SAS London — Copenhagen 14h 50m stop 13:15 — 15:40 SK935 SAS Copenhagen — San Francisco 13h 35m stop 05:15 — 06:36 F92678 Frontier Airlines San Francisco — Ontario	43h 6m including layover	Find flight from$722
20:45 — 07:08 +2 days	20:45 — 22:05 EI179 Aer Lingus London — Dublin 17h 15m stop 15:20 — 17:50 EI51 Aer Lingus Dublin — Las Vegas 12h 10m stop 06:00 — 07:08 F91283 Frontier Airlines Las Vegas — Ontario	42h 23m including layover	Find flight from$710
21:40 — 21:00 +1 day	21:40 — 03:45 AV121 Avianca London — Bogota 9h 15m stop 13:00 — 15:05 AV130 Avianca Bogota — San Salvador 2h 30m stop 17:35 — 21:00 AV530 Avianca San Salvador — Ontario	31h 20m including layover	Find flight from$894
22:35 — 06:36 +2 days	22:35 — 05:15 TK1984 Turkish Airlines London — Istanbul 2h 50m stop 08:05 — 11:05 TK289 Turkish Airlines Istanbul — San Francisco 18h 10m stop 05:15 — 06:36 F92678 Frontier Airlines San Francisco — Ontario	40h 1m including layover	Find flight from$1070

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

*Departure and arrival times - local. Updated on February 23, 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 06:25 to 22:35 from 10 London airports and arrive 06:25 to 22:35 to 2 Ontario airports. Average flight time is 30h 18m.

The fastest flight 15h 5m
Average flight time 30h 18m
The earliest flight 06:25
The latest flight 22:35
Distance 5421 ml

The cheapest months to travel to Ontario are february (from 429 $), december (from 599 $), november (from 672 $).

The most expensive months are january (from 894 $), november (from 672 $), december (from 599 $).

What is the lowest airfare London to Ontario?

The cheapest plane ticket found by our users is $429. This airfare is for economy class on one-way Z0701 flight by Z0 for February 21, 2025 which leaves Gatwick in London at 13:00 am and arrives at Ontario Ontario Int. at 13:01.

Economy class

$429

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Business class

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First class

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Popular Airlines on the Route

The flight London — Ontario is served by 18 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Air Canada - 11 departures per week at the price of from $ 1521 . And the most expensive tickets are offered by Air Canada airline - from $ 3429.

Direct flights

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

Connecting Flights

There are 58 flights with layovers on the route. The fastest connecting flight is BA53 by British Airways takes 15h 5m and the cheapest is Z0701 by Z0 for $429.

W9 - Wizz Air UK

from $983

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AC - Air Canada

from $1521

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FI - Icelandair

from $722

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EI - Aer Lingus

from $710

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CI - China Airlines

from $1517

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EK - Emirates

from $1551

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UA - United Airlines

from $1728

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AV - Avianca

from $894

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Z0 - Z0

from $429

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TK - Turkish Airlines

from $1070

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OG - Air Onix

from $599

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SK - SAS

from $722

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See more connecting flights

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 $997
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London-Waterloo-QQW

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Heathrow-LHR

from $710
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Luton-LTN

from $599
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British Rail Terminal-ZLX

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London Biggin Hill-BQH

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Stansted-STN

from $599
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Gatwick-LGW

from $429
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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 18 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 — New York

from $8544

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London — Orlando

from $79

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London — Los Angeles

from $313

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London — Chicago

from $70

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London — Miami

from $55

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London — Boston

from $75

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London — San Francisco

from $58

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London — Las Vegas

from $60

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London — Denver

from $59

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London — Houston

from $77

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How to book a plane ticket yourself?

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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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