Cheap flights from London to Ontario

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1 adult
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Thu 30/9
Thu 7/10

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from London to Ontario.
View current United States travel restrictions

Flight information for London to Ontario
(LON to ONT)

Find info about flight duration, direct flights, and airports for your flight from London to Ontario
Best price found£251The best flight deal from London to Ontario found on momondo in the last 72 hours is £251
Fastest flight time13h 31mThe fastest flight from London to Ontario takes 13h 31m
Direct flightsNoneThere are no direct flights from London to Ontario. Popular non-direct routes for this connection are London City Airport - Ontario Airport, London Heathrow Airport - Ontario Airport and London Gatwick Airport - Ontario Airport.
Airports in Ontario1 airportThere is 1 airport near Ontario: Ontario (ONT)

How to get the cheapest flight ticket from London to Ontario

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 month to fly from London to Ontario?

February

The cheapest time of year to fly to Ontario from London is February. The most expensive is July.

What is the cheapest day to depart London for Ontario?

Wednesday

The cheapest day of the week is usually Wednesday. The most expensive is usually Sunday.

When is the cheapest time to fly from London to Ontario?

at midday

London to Ontario flights are approximately 57% more expensive in the evening than at midday

What is the cheapest airline that flies to Ontario from London?

Finnair

American Airlines, British Airways, and Finnair are the most popular carriers operating from London to Ontario

What is the cheapest London to Ontario flight route?

London Heathrow - Ontario

Fly from London Heathrow to Ontario for the best London - Ontario flight prices

How far in advance should you book London to Ontario flights?

39 days before

The cheapest time to buy a flight from London to Ontario is approximately 39 days to departure


Easily compare return flights from London to Ontario

Below you can see the best fares for your return flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Ontario by changing tabs
British Airways
10 Jan
LHR07:20London Heathrow
15h 34m
1 stop
ONT22:54Ontario
24 Jan
ONT05:50Ontario
13h 00m
1 stop
LHR18:50London Heathrow
British Airways
10 Jan
LHR07:20London Heathrow
15h 34m
1 stop
ONT22:54Ontario
24 Jan
ONT05:50Ontario
13h 00m
1 stop
LHR18:50London Heathrow
KLM
1 Mar
LHR01:30London Heathrow
17h 24m
2 stops
ONT18:54Ontario
15 Mar
ONT03:10Ontario
17h 20m
1 stop
LHR20:30London Heathrow
British Airways
10 Jan
LHR07:20London Heathrow
15h 34m
1 stop
ONT22:54Ontario
24 Jan
ONT05:50Ontario
13h 00m
1 stop
LHR18:50London Heathrow
British Airways
9 Nov
LHR04:55London Heathrow
16h 33m
1 stop
ONT21:28Ontario
30 Nov
ONT06:00Ontario
12h 50m
1 stop
LHR18:50London Heathrow
KLM
1 Mar
LHR01:30London Heathrow
17h 24m
2 stops
ONT18:54Ontario
15 Mar
ONT08:05Ontario
17h 00m
2 stops
LHR01:05London Heathrow

Find the cheapest one-way flights from London to Ontario

If you're looking for one-way flights from London to Ontario, view some of our deals below provided by Air Canada, British Airways and Lufthansa
Multiple Airlines
14 Nov
LGW14:10London Gatwick
47h 21m
3 stops
ONT13:31Ontario
British Airways
25 Oct
LHR06:15London Heathrow
16h 16m
1 stop
ONT22:31Ontario
Air Canada
25 Oct
LHR10:10London Heathrow
27h 51m
2 stops
ONT14:01Ontario

Search last-minute flights to Ontario from London

Find and compare flight prices for your last-minute flight from London to Ontario
United Airlines
5 Oct
LHR06:25London Heathrow
17h 51m
2 stops
ONT00:16Ontario
4 Nov
ONT06:31Ontario
16h 54m
1 stop
LHR23:25London Heathrow
Multiple Airlines
30 Sep
LHR04:40London Heathrow
19h 36m
2 stops
ONT00:16Ontario
31 Mar
ONT05:45Ontario
20h 25m
1 stop
LHR02:10London Heathrow
Air Canada
5 Oct
LHR10:10London Heathrow
35h 32m
2 stops
ONT21:42Ontario
4 Nov
ONT01:25Ontario
44h 05m
2 stops
LHR21:30London Heathrow
United Airlines
3 Oct
LHR10:10London Heathrow
14h 06m
1 stop
ONT00:16Ontario
2 Nov
ONT02:00Ontario
21h 25m
1 stop
LHR23:25London Heathrow
Multiple Airlines
30 Sep
LHR10:15London Heathrow
14h 01m
1 stop
ONT00:16Ontario
30 Mar
ONT06:30Ontario
19h 40m
1 stop
LHR02:10London Heathrow
United Airlines
2 Oct
LHR07:25London Heathrow
17h 38m
2 stops
ONT01:03Ontario
17 Jan
ONT04:45Ontario
19h 15m
2 stops
LHR00:00London Heathrow

Best airlines flying from London to Ontario

Compare and see reviews for airlines that fly from London to Ontario with momondo
AirlineRatingFree cancellationPrice
Finnair
PriceFrom £265
Free cancellation
Rating
7.5
United Airlines
PriceFrom £274
Free cancellation
Rating
6.8
Virgin Atlantic
PriceFrom £282
Free cancellation
Rating
9.3
British Airways
PriceFrom £315
Free cancellation
Rating
7.0
American Airlines
PriceFrom £810
Free cancellation
Rating
7.2

  • Are airlines flying from London to Ontario offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from London to Ontario are adapting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are British Airways, United Airlines, and Virgin Atlantic. You can search for the full list of airlines such as British Airways that are offering this flexibility.

  • How far is London to Ontario by plane?

    There are 5417.5 mi between London and Ontario. Flights usually cover this in 14h 18m, depending on flying conditions and air traffic around both airports.


Can I fly to Ontario from London right now?

Information is based on travel restrictions from London to Ontario

Most visitors from London will not be allowed to enter Ontario.

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from London are not required to quarantine after entering Ontario.

Can I fly back to London from Ontario?

Returning to London from Ontario

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering London.

If you are planning to travel to Ontario at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for London to Ontario

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
London to San Francisco Flights
Fastest flight time10h 50m
Cheapest price£242
London to Los Angeles Flights
Fastest flight time11h 00m
Cheapest price£278
London to San Jose Flights
Fastest flight time13h 00m
Cheapest price£333
Manchester to Los Angeles Flights
Fastest flight time22h 21m
Cheapest price£338
London to San Diego Flights
Fastest flight time11h 10m
Cheapest price£345
Manchester to San Francisco Flights
Fastest flight time14h 15m
Cheapest price£360
London to Santa Ana Flights
Fastest flight time14h 10m
Cheapest price£379
London to Oakland, California Flights
Fastest flight time18h 49m
Cheapest price£381
London to Burbank Flights
Fastest flight time13h 38m
Cheapest price£395
Manchester to San Diego Flights
Fastest flight time17h 58m
Cheapest price£398
London to Palm Springs Flights
Fastest flight time15h 45m
Cheapest price£446
Manchester to Ontario Flights
Fastest flight time17h 51m
Cheapest price£454