Cheap flights from Ontario to London

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Travel Restriction Alert

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

Flight information for Ontario to London
(ONT to LON)

Find info about flight duration, direct flights, and airports for your flight from Ontario to London
Best price found£306The best flight deal from Ontario to London found on momondo in the last 72 hours is £306
Fastest flight time12h 50mThe fastest flight from Ontario to London takes 12h 50m
Direct flightsNoneThere are no direct flights from Ontario to London. Popular non-direct routes for this connection are Ontario Airport - London Gatwick Airport, Ontario Airport - London Heathrow Airport and Ontario Airport - London City Airport.
Airports in London6 airportsThere are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

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 month to fly from Ontario to London?

August

The cheapest time of year to fly to London from Ontario is August. The most expensive is June.

What is the cheapest day to depart Ontario for London?

Thursday

The cheapest day of the week is usually Thursday. The most expensive is usually Friday.

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

in the morning

Ontario to London flights are approximately 0% more expensive in the morning than in the morning

What is the cheapest Ontario to London flight route?

Ontario - London Heathrow

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

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

52 days before

The cheapest time to buy a flight from Ontario to London is approximately 52 days to departure


Easily compare return flights from Ontario to London

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 Ontario to London by changing tabs
British Airways
15 Mar
ONT05:00Ontario
15h 50m
1 stop
LHR20:50London Heathrow
23 Mar
LHR02:20London Heathrow
20h 34m
2 stops
ONT22:54Ontario
United Airlines
20 Nov
ONT18:50Ontario
27h 25m
1 stop
LHR22:15London Heathrow
18 Jan
LHR08:35London Heathrow
18h 24m
1 stop
ONT02:59Ontario
Delta
6 Feb
ONT07:48Ontario
13h 57m
1 stop
LHR21:45London Heathrow
18 Feb
LHR01:30London Heathrow
24h 12m
2 stops
ONT01:42Ontario
American Airlines
17 Jan
ONT10:44Ontario
13h 36m
1 stop
LHR00:20London Heathrow
27 Jan
LHR06:50London Heathrow
16h 41m
1 stop
ONT23:31Ontario
Multiple Airlines
18 Jan
ONT01:40Ontario
15h 40m
1 stop
LHR17:20London Heathrow
26 Jan
LHR06:50London Heathrow
16h 41m
1 stop
ONT23:31Ontario
KLM
3 Nov
ONT03:20Ontario
17h 10m
1 stop
LHR20:30London Heathrow
17 Nov
LHR01:30London Heathrow
17h 21m
2 stops
ONT18:51Ontario

Find the cheapest one-way flights from Ontario to London

If you're looking for one-way flights from Ontario to London, view some of our deals below provided by Qatar Airways and United Airlines
Multiple Airlines
30 Nov
ONT00:25Ontario
23h 20m
3 stops
LGW23:45London Gatwick
Qatar Airways
17 Nov
ONT06:00Ontario
12h 50m
1 stop
LHR18:50London Heathrow
United Airlines
28 Nov
ONT01:00Ontario
20h 25m
1 stop
LHR21:25London Heathrow

Search last-minute flights to London from Ontario

Find and compare flight prices for your last-minute flight from Ontario to London
American Airlines
2 Nov
ONT07:00Ontario
13h 50m
1 stop
LHR20:50London Heathrow
25 Jan
LHR09:10London Heathrow
15h 35m
1 stop
ONT00:45Ontario
KLM
1 Nov
ONT03:20Ontario
17h 10m
1 stop
LHR20:30London Heathrow
1 Dec
LHR01:30London Heathrow
17h 21m
2 stops
ONT18:51Ontario
British Airways
1 Nov
ONT04:25Ontario
14h 55m
1 stop
LHR19:20London Heathrow
1 Dec
LHR04:55London Heathrow
16h 33m
1 stop
ONT21:28Ontario
Multiple Airlines
31 Oct
ONT04:25Ontario
14h 55m
1 stop
LHR19:20London Heathrow
12 Nov
LHR06:50London Heathrow
17h 09m
1 stop
ONT23:59Ontario
Air Canada
2 Nov
ONT02:00Ontario
21h 10m
2 stops
LHR23:10London Heathrow
16 Nov
LHR09:30London Heathrow
41h 45m
2 stops
ONT03:15Ontario
United Airlines
1 Nov
ONT06:31Ontario
16h 54m
1 stop
LHR23:25London Heathrow
14 Nov
LHR08:35London Heathrow
18h 40m
1 stop
ONT03:15Ontario

  • How far is Ontario to London by plane?

    Ontario and London are 5417.5 mi apart from one another. Typically, this will take 12h 50m by plane in normal conditions.


Can I fly to London from Ontario right now?

Information is based on travel restrictions from Ontario to London

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter London.

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.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Can I fly back to Ontario from London?

Returning to Ontario from London

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.

If you are planning to travel to London 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 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 Flights
Fastest flight time10h 10m
Cheapest price£204
San Francisco to London Flights
Fastest flight time10h 15m
Cheapest price£291
Los Angeles to Manchester Flights
Fastest flight time10h 15m
Cheapest price£387
San Jose to London Flights
Fastest flight time10h 15m
Cheapest price£407
San Francisco to Manchester Flights
Fastest flight time14h 40m
Cheapest price£408
San Diego to London Flights
Fastest flight time10h 25m
Cheapest price£409
Santa Ana to London Flights
Fastest flight time12h 33m
Cheapest price£414
Burbank to London Flights
Fastest flight time13h 30m
Cheapest price£421
Oakland, California to London Flights
Fastest flight time14h 05m
Cheapest price£425
Sacramento to London Flights
Fastest flight time13h 45m
Cheapest price£444

Similar Ontario to London flights

Flexible with your destination? Broaden your search and find flights similar to your Ontario to London route