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
British Airways
British Airways
09 Dec
ONT
6:20 am
Ontario airport
13h 15m
1 Stop
3:35 am
+1
LHR
London Heathrow airport
British Airways
18 Dec
LHR
7:20 am
London Heathrow airport
23h 59m
2 Stops
11:19 pm
ONT
Ontario airport
442 USD
British Airways
British Airways
11 Dec
ONT
12:15 am
Ontario airport
17h 05m
1 Stop
1:20 am
+1
LHR
London Heathrow airport
British Airways
18 Dec
LHR
8:35 am
London Heathrow airport
22h 44m
2 Stops
11:19 pm
ONT
Ontario airport
442 USD
British Airways
British Airways
14 Oct
ONT
3:50 am
Ontario airport
25h 10m
2 Stops
1:00 pm
+1
LGW
London Gatwick airport
British Airways
30 Oct
LGW
8:25 pm
London Gatwick airport
28h 20m
2 Stops
5:45 pm
+1
ONT
Ontario airport
448 USD
American Airlines
American Airlines
20 Oct
ONT
5:45 am
Ontario airport
12h 40m
1 Stop
2:25 am
+1
LHR
London Heathrow airport
American Airlines
27 Oct
LHR
9:30 am
London Heathrow airport
13h 14m
1 Stop
3:44 pm
ONT
Ontario airport
521 USD
American Airlines
American Airlines
20 Sep
ONT
5:05 am
Ontario airport
13h 20m
1 Stop
2:25 am
+1
LHR
London Heathrow airport
American Airlines
08 Oct
LHR
10:30 am
London Heathrow airport
14h 14m
1 Stop
4:44 pm
ONT
Ontario airport
523 USD
American Airlines
American Airlines
04 Oct
ONT
5:43 am
Ontario airport
14h 17m
1 Stop
4:00 am
+1
LHR
London Heathrow airport
American Airlines
08 Oct
LHR
10:30 am
London Heathrow airport
14h 14m
1 Stop
4:44 pm
ONT
Ontario airport
549 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
CHEAPEST DAY TO FLY
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Friday
CHEAPEST TIME TO FLY
in the morning
Ontario to London flights are approximately 113% more expensive in the afternoon than in the morning
CHEAPEST AIRLINE
Air Canada
Air Canada, Finnair, and Air New Zealand are the most popular carriers operating from Ontario to London
CHEAPEST ROUTE
Ontario - London Heathrow
Fly from Ontario to London Heathrow for the best Ontario - London flight prices
CHEAPEST TIME TO BOOK
45 days before
The cheapest time to buy a flight from Ontario to London is approximately 45 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
13h 10m
The fastest flight from Ontario to London takes 13h 10m.
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 15m
Cheapest price
372 USD
Los Angeles to Manchester
Fastest flight time
10h 10m
Cheapest price
550 USD
Las Vegas to London
Fastest flight time
9h 50m
Cheapest price
466 USD
Las Vegas to Manchester
Fastest flight time
9h 55m
Cheapest price
574 USD
View more

Flights from Ontario to:

  • London
  • England
  • United Kingdom
  • Europe

Flights to London from:

  • Ontario
  • California
  • United States
  • North America
*Flight prices to London are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.