Cheap flights from Ontario to London

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Easily compare round-trip flights from Ontario to London

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to London by changing tabs
Quickest
Cheapest
United Airlines
United Airlines
02 Oct
ONT
4:38 pm
Ontario airport
24h 02m
1 Stop
12:40 am
+2
LHR
London Heathrow airport
United Airlines
13 Oct
LHR
10:30 am
London Heathrow airport
21h 32m
1 Stop
12:02 am
+1
ONT
Ontario airport
370 USD
American Airlines
American Airlines
18 Jan
ONT
12:15 am
Ontario airport
16h 00m
1 Stop
12:15 am
+1
LHR
London Heathrow airport
American Airlines
26 Jan
LHR
9:30 am
London Heathrow airport
14h 14m
1 Stop
3:44 pm
ONT
Ontario airport
370 USD
United Airlines
United Airlines
03 Oct
ONT
3:47 am
Ontario airport
19h 23m
1 Stop
7:10 am
+1
LHR
London Heathrow airport
United Airlines
13 Oct
LHR
10:30 am
London Heathrow airport
21h 32m
1 Stop
12:02 am
+1
ONT
Ontario airport
370 USD
American Airlines
American Airlines
23 Jan
ONT
4:45 am
Ontario airport
12h 55m
1 Stop
1:40 am
+1
LHR
London Heathrow airport
American Airlines
01 Feb
LHR
9:30 am
London Heathrow airport
14h 14m
1 Stop
3:44 pm
ONT
Ontario airport
370 USD
American Airlines
American Airlines
24 Jan
ONT
4:45 am
Ontario airport
12h 55m
1 Stop
1:40 am
+1
LHR
London Heathrow airport
American Airlines
02 Feb
LHR
9:30 am
London Heathrow airport
14h 14m
1 Stop
3:44 pm
ONT
Ontario airport
370 USD
American Airlines
American Airlines
05 Oct
ONT
9:40 am
Ontario airport
13h 00m
1 Stop
6:40 am
+1
LHR
London Heathrow airport
American Airlines
15 Oct
LHR
10:30 am
London Heathrow airport
14h 10m
1 Stop
4:40 pm
ONT
Ontario airport
388 USD

How to get the cheapest flight ticket from Ontario to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to fly to London?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Friday
When is the cheapest time to fly to London?
in the morning
Ontario to London flights are approximately 14% more expensive in the afternoon than in the morning
What is the cheapest airline that flies to London?
Air Canada
Air Canada, SWISS, and Iberia are the most popular carriers operating from Ontario to London
What is the cheapest route?
Ontario - London Heathrow
Fly from Ontario to London Heathrow for the best Ontario - London flight prices
When is the cheapest time to book a flight to London?
40 days before
The cheapest time to buy a flight from Ontario to London is approximately 40 days to departure
60
Days before departure
0

Flight information for Ontario to London (LON - ONT)

Find info about flight duration, direct flights, and airports for your flight from Ontario to London
Fastest flight time 12h 49m The fastest flight from Ontario to London takes 12h 49m.
Direct flights None There are no direct flights from Ontario to London. Popular non-direct routes for this connection are Ontario - London Heathrow, Ontario - London Gatwick and Ontario - London City.
Airports in London 6 airports There are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

Alternative routes for Ontario to London

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Los Angeles to London
Fastest flight time
10h 20m
Cheapest price
324 USD
Palm Springs to London
Fastest flight time
14h 14m
Cheapest price
401 USD
Los Angeles to Manchester
Fastest flight time
10h 10m
Cheapest price
446 USD
San Diego to London
Fastest flight time
10h 30m
Cheapest price
518 USD
Los Angeles to Birmingham
Fastest flight time
14h 20m
Cheapest price
523 USD
San Diego to Manchester
Fastest flight time
15h 05m
Cheapest price
728 USD
San Diego to Birmingham
Fastest flight time
24h 25m
Cheapest price
838 USD
View more

Flights from Ontario to:

  • London
  • England
  • United Kingdom
  • Europe

Flights to London from:

  • Ontario
  • California
  • United States
  • North America