Cheap Flights from Ontario, CA to London from $202

Return flight: London – Ontario

On Cheapflightsplus.com you will find 294 connecting flights from Ontario to London. You can compare airfare deals from 10 airlines and multiple travel sites from $202, book and save on cheap plane tickets and last minute offers. Also check out ONT-LON flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to London 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: $202 (one-way), $346 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Ontario to London. 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 Arrival Flight Details Flight Duration Price
06:05 — 06:20
+1 day
12:53 — 17:50 BA5110 British Airways
Ontario — Dallas
4h 13m stop
15:20 — 06:20 BA1589 British Airways
Dallas — London
16h 15m
including layover
Find flight
from$411
06:05 — 07:20
+1 day
12:53 — 17:50 BA5110 British Airways
Ontario — Dallas
5h 13m stop
16:20 — 07:20 BA1505 British Airways
Dallas — London
17h 15m
including layover
Find flight
from$411
07:00 — 06:20
+1 day
06:05 — 11:06 BA5107 British Airways
Ontario — Dallas
3h 18m stop
15:20 — 06:20 BA1589 British Airways
Dallas — London
15h 20m
including layover
Find flight
from$411
07:00 — 07:20
+1 day
06:05 — 11:06 BA5107 British Airways
Ontario — Dallas
4h 18m stop
16:20 — 07:20 BA1505 British Airways
Dallas — London
16h 20m
including layover
Find flight
from$411
08:04 — 10:35
+1 day
08:04 — 09:12 F94758 Frontier Airlines
Ontario — Las Vegas
7h 33m stop
16:45 — 10:35 Z0778 Z0
Las Vegas — London
18h 31m
including layover
Find flight
from$262
08:04 — 14:40
+1 day
08:04 — 09:12 F94758 Frontier Airlines
Ontario — Las Vegas
11h 33m stop
20:45 — 14:40 VS156 Virgin Atlantic Airways
Las Vegas — London
22h 36m
including layover
Find flight
from$552
09:02 — 09:40
+1 day
08:56 — 13:54 F91406 Frontier Airlines
Ontario — Dallas
4h 29m stop
18:30 — 09:40 BA192 British Airways
Dallas — London
16h 38m
including layover
Find flight
from$596
10:41 — 08:15
+1 day
10:41 — 15:39 IB4137 Iberia
Ontario — Dallas
1h 36m stop
17:15 — 08:15 IB4206 Iberia
Dallas — London
13h 34m
including layover
Find flight
from$596
10:42 — 06:20
+2 days
10:42 — 15:39 IB4137 Iberia
Ontario — Dallas
23h 41m stop
15:20 — 06:20 IB4916 Iberia
Dallas — London
35h 38m
including layover
Find flight
from$725
11:04 — 09:40
+1 day
10:43 — 15:38 BA5109 British Airways
Ontario — Dallas
2h 35m stop
18:30 — 09:40 BA192 British Airways
Dallas — London
14h 36m
including layover
Find flight
from$411
11:46 — 10:35
+1 day
17:26 — 18:36 F92232 Frontier Airlines
Ontario — Las Vegas
3h 49m stop
16:45 — 10:35 Z0778 Z0
Las Vegas — London
14h 49m
including layover
Find flight
from$289
12:38 — 10:35
+1 day
12:38 — 13:44 F91358 Frontier Airlines
Ontario — Las Vegas
3h 1m stop
16:45 — 10:35 Z0778 Z0
Las Vegas — London
13h 57m
including layover
Find flight
from$297
12:53 — 12:05
+1 day
12:53 — 17:50 BA5110 British Airways
Ontario — Dallas
3h 5m stop
21:00 — 12:05 BA1521 British Airways
Dallas — London
15h 12m
including layover
Find flight
from$456
14:01 — 12:10
+1 day
14:01 — 16:14 F93335 Frontier Airlines
Ontario — Portland
2h 16m stop
18:30 — 12:10 BA266 British Airways
Portland — London
14h 9m
including layover
Find flight
from$581
14:54 — 12:05
+1 day
14:54 — 19:49 IB4604 Iberia
Ontario — Dallas
1h 6m stop
20:55 — 12:05 IB4204 Iberia
Dallas — London
13h 11m
including layover
Find flight
from$595
15:09 — 12:05
+1 day
14:53 — 19:48 BA5111 British Airways
Ontario — Dallas
55m stop
21:00 — 12:05 BA1521 British Airways
Dallas — London
12h 56m
including layover
Find flight
from$456
15:09 — 07:20
+2 days
14:53 — 19:48 BA5111 British Airways
Ontario — Dallas
20h 15m stop
16:20 — 07:20 BA1505 British Airways
Dallas — London
32h 11m
including layover
Find flight
from$484
16:06 — 12:15
+2 days
16:06 — 18:59 AS1119 Alaska Airlines
Ontario — Seattle
23h 51m stop
18:50 — 12:15 IB3506 Iberia
Seattle — London
36h 9m
including layover
Find flight
from$535
16:25 — 13:20
+1 day
16:25 — 18:49 BA6797 British Airways
Ontario — Phoenix
1h 49m stop
20:30 — 13:20 BA288 British Airways
Phoenix — London
12h 55m
including layover
Find flight
from$411
19:14 — 07:10
+2 days
19:14 — 22:00 AS1399 Alaska Airlines
Ontario — Seattle
15h 45m stop
13:45 — 07:10 IB3508 Iberia
Seattle — London
27h 56m
including layover
Find flight
from$670
19:59 — 12:25
+2 days
19:59 — 21:10 F94206 Frontier Airlines
Ontario — Las Vegas
21h 10m stop
18:20 — 12:25 BA270 British Airways
Las Vegas — London
32h 26m
including layover
Find flight
from$504
20:27 — 09:35
+2 days
18:34 — 21:53 F92908 Frontier Airlines
Ontario — Denver
17h 31m stop
17:30 — 09:35 BA218 British Airways
Denver — London
29h 8m
including layover
Find flight
from$508
20:59 — 14:55
+2 days
19:58 — 21:04 F94206 Frontier Airlines
Ontario — Las Vegas
22h 47m stop
20:55 — 14:55 BA274 British Airways
Las Vegas — London
33h 56m
including layover
Find flight
from$496
*Departure and arrival times - local. Updated on November 22, 2024

Flight Information

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

Distance between Ontario and London is 8723 miles. Time difference between the cities is 8h. Airplanes depart 00:58 to 22:59 from 2 Ontario airports and arrive 00:58 to 22:59 to 10 London airports. Average flight time is 22h 40m.

  • The fastest flight 12h 55m
  • Average flight time 22h 40m
  • The earliest flight 00:58
  • The latest flight 22:59
  • Distance 5421 ml

The cheapest months to travel to London are january (from 202 $), november (from 212 $), february (from 248 $).

The most expensive months are december (from 262 $), february (from 248 $), november (from 212 $).

What is the lowest airfare Ontario to London?

The cheapest plane ticket found by our users is $202. This airfare is for economy class on one-way F92232 flight by Frontier Airlines for January 22, 2025 which leaves Ontario Int. in Ontario at 12:34 am and arrives at London Gatwick at 10:00.

Economy class
$202
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Business class
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First class
?
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Popular Airlines on the Route

The flight Ontario — London is served by 10 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Air Canada - 33 departures per week at the price of from $ 471 . And the most expensive tickets are offered by China Airlines airline - from $ 5223.

Direct flights

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

Connecting Flights

There are 294 flights with layovers on the route. The fastest connecting flight is BA6797 by British Airways takes 12h 55m and the cheapest is F92232 by Frontier Airlines for $202.

  • AS - Alaska Airlines
    from $329
    Find
  • AC - Air Canada
    from $471
    Find
  • F9 - Frontier Airlines
    from $202
    Find
  • AV - Avianca
    from $1200
    Find
  • CI - China Airlines
    from $5223
    Find
  • IB - Iberia
    from $595
    Find
  • Y4 - Volaris
    from $518
    Find
  • UA - United Airlines
    from $688
    Find
  • VS - Virgin Atlantic Airways
    from $664
    Find
  • BA - British Airways
    from $411
    Find
See more connecting flights

Airports

You can fly from Ontario to London from 2 airports (Ontario Int., International Heliport).

Ontario airports

  • Ontario Int.-ONT
    from $202
    Find
  • International Heliport-JIO
    Find

London airports

  • London City-LCY
    Find
  • London-Waterloo-QQW
    Find
  • Heathrow-LHR
    Find
  • Luton-LTN
    Find
  • British Rail Terminal-ZLX
    Find
  • London Biggin Hill-BQH
    Find
  • Stansted-STN
    Find
  • Gatwick-LGW
    Find
  • Ebbsfleet International Rail St-XQE
    Find
  • Stratford International Rail St-XOF
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • 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.

    To find a plane ticket, please select dates.

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