Cheap flights from Ontario to London

Round-trip
1 adult
Economy
From?
To?
Wed 9/29
Wed 10/6

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$591The best flight deal from Ontario to London found on momondo in the last 72 hours is $591
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. Most expensive is June

What is the cheapest day to depart Ontario for London?

Tuesday

The cheapest day of the week is typically Tuesday. The most expensive is typically Friday

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

in the evening

Ontario to London flights are approximately 14% more expensive at noon than in the evening

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

Air France

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

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 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
British Airways
Jan 10
ONT5:50 amOntario
13h 00m
1 stop
LHR6:50 pmLondon Heathrow
Feb 9
LHR7:15 amLondon Heathrow
15h 39m
1 stop
ONT10:54 pmOntario
British Airways
Feb 2
ONT4:00 amOntario
13h 20m
1 stop
LHR5:20 pmLondon Heathrow
Feb 8
LHR7:15 amLondon Heathrow
15h 39m
1 stop
ONT10:54 pmOntario
British Airways
Jan 7
ONT4:00 amOntario
13h 20m
1 stop
LHR5:20 pmLondon Heathrow
Feb 4
LHR7:15 amLondon Heathrow
15h 39m
1 stop
ONT10:54 pmOntario
American Airlines
Nov 7
ONT6:00 amOntario
12h 50m
1 stop
LHR6:50 pmLondon Heathrow
Nov 16
LHR6:50 amLondon Heathrow
17h 09m
1 stop
ONT11:59 pmOntario
American Airlines
Nov 8
ONT3:20 amOntario
14h 00m
1 stop
LHR5:20 pmLondon Heathrow
Nov 16
LHR4:55 amLondon Heathrow
16h 33m
1 stop
ONT9:28 pmOntario
American Airlines
Jan 5
ONT4:00 amOntario
14h 50m
1 stop
LHR6:50 pmLondon Heathrow
Jan 12
LHR6:50 amLondon Heathrow
16h 41m
1 stop
ONT11:31 pmOntario

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 American Airlines and British Airways
British Airways
Feb 11
ONT4:00 amOntario
13h 20m
1 stop
LHR5:20 pmLondon Heathrow
British Airways
Nov 7
ONT3:20 amOntario
14h 00m
1 stop
LHR5:20 pmLondon Heathrow
British Airways
Oct 20
ONT8:45 amOntario
14h 20m
1 stop
LHR11:05 pmLondon Heathrow

Search last-minute flights to London from Ontario

Find and compare flight prices for your last-minute flight from Ontario to London
Multiple Airlines
Sep 29
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Nov 4
LHR8:05 amLondon Heathrow
18h 10m
2 stops
ONT2:15 amOntario
Multiple Airlines
Oct 2
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Nov 5
LHR8:05 amLondon Heathrow
18h 10m
2 stops
ONT2:15 amOntario
Multiple Airlines
Sep 30
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Nov 4
LHR8:05 amLondon Heathrow
18h 10m
2 stops
ONT2:15 amOntario
Multiple Airlines
Oct 4
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Oct 8
LHR9:10 amLondon Heathrow
18h 11m
2 stops
ONT3:21 amOntario
Multiple Airlines
Oct 4
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Oct 21
LHR9:10 amLondon Heathrow
18h 11m
2 stops
ONT3:21 amOntario
Multiple Airlines
Oct 4
ONT7:30 amOntario
16h 25m
2 stops
LHR11:55 pmLondon Heathrow
Oct 11
LHR9:10 amLondon Heathrow
18h 11m
2 stops
ONT3:21 amOntario

Best airlines flying from Ontario to London

Compare and see reviews for airlines that fly from Ontario to London with momondo
AirlineRatingFree CancellationPrice
British Airways
PriceFrom $350
Free Cancellation
Rating
7.0
7.4

Boarding

7.2

Comfort

7.5

Crew

6.6

Entertainment

6.5

Food

Reviews

Kayak cancelled my return flight without notifying me. Fortunately, British Airways got me on the same flight with modified connections.

1 / 10
American Airlines
PriceFrom $366
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.1

Entertainment

6.8

Food

Reviews

Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!

1 / 10
Delta
PriceFrom $374
Free Cancellation
Rating
8.3
8.3

Boarding

8.5

Comfort

8.4

Crew

8.1

Entertainment

8.1

Food

Reviews

Great

1 / 10
United Airlines
PriceFrom $379
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Not because the flight is going to Africa we can’t get better service on board

1 / 10
Air France
PriceFrom $453
Free Cancellation
Rating
7.7
7.9

Boarding

7.7

Comfort

8.3

Crew

7.1

Entertainment

7.8

Food

Reviews

Poor communication from boarding staff, airport staff not a clue. Communication on board was un decipherable and airline lost baggage.

1 / 9

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

    Due to the global impact of COVID-19, some of our airline partners operating flights from Ontario to London, such as American Airlines, British Airways, and United Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.

  • How far is Ontario to London by plane?

    The straight-line distance from Ontario to London is 5417.5 mi. A reasonable flight in good conditions will take 12h 26m.


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$324
San Francisco to London Flights
Fastest flight time17h 00m
Cheapest price$336
Los Angeles to Manchester Flights
Fastest flight time14h 20m
Cheapest price$416
Oakland, California to London Flights
Fastest flight time14h 51m
Cheapest price$524
San Diego to London Flights
Fastest flight time10h 25m
Cheapest price$557
San Jose to London Flights
Fastest flight time10h 15m
Cheapest price$582
Santa Ana to London Flights
Fastest flight time12h 45m
Cheapest price$598
Burbank to London Flights
Fastest flight time13h 45m
Cheapest price$603
Oakland, California to Newcastle upon Tyne Flights
Fastest flight time18h 40m
Cheapest price$654

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