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Cheap flights from Ontario (ONT) to London (LON)

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The best prices from Ontario to London are usually found in October or November, booked 41 days in advance, depart on a Tuesday or Sunday and return on a Sunday

How to find the cheapest flight from
Ontario (ONT) to London (LON)

ONT - LON
Price
$474 - $779
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches
Popular in July High demand for flights, 25% potential price rise
Cheapest in October Best time to find cheap flights, 19% potential price drop
Average price $779 Average for round-trip flights in July 2020
Round-trip from $474 From Ontario to London
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to London?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 30% on the overall cost on flights from Ontario to London.

How far in advance should I book a flight from Ontario to London?

To save on the cost of your flight from Ontario to London, book at least 51 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $813 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $886.

What is the cheapest month to fly from Ontario to London?

Flights from Ontario to London lean towards being more expensive in June. Prices are generally better when you fly from Ontario to London in February, with the cheapest ticket starting at $394.

Cheap flights from Ontario to London in July, August 2020

The best prices found for ONT to LON flights for July, August
20 Jul - 7 Sep
$773pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
   
2 STOPS
ONT
Ontario
20 Jul - 7 Sep
$830pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
   
2 STOPS
ONT
Ontario
28 Jul - 3 Sep
$846pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
ONT
Ontario

Ontario to London 2020 flight deals

Cheap flights to London from Ontario found for this year
14 Oct - 21 Oct
$616pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
   
2 STOPS
ONT
Ontario
14 Oct - 21 Oct
$626pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario
14 Oct - 13 Nov
$627pp
ONT
Ontario
Lufthansa
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to London

Late deals on round-trip flights to London from Ontario, departing today and this week
23 Jun - 8 Jul
$1635pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario
28 Jun - 17 Jul
$1736pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario
25 Jun - 10 Jul
$1826pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario

One-way flights to London from Ontario

The cheapest one-way flights from Ontario to London
9:32 am - 2:55 am
Lufthansa
2 Stops
33h 23m
ONT - LHR
Lufthansa
8:43 am - 6:30 am
British Airways
1 Stop
13h 47m
ONT - LHR
British Airways
$518
FlightHub
6:44 am - 7:50 am
SWISS
2 Stops
17h 06m
ONT - LCY
SWISS
$521
Ovago

Related info for your journey

Useful info, stats and facts about Ontario to London flights.

Flight FAQs

From Ontario to London

Are flight prices decreasing from Ontario to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ontario to London for under $700 on Cheapflights?

Yes, there are multiple flights from Ontario to London for under $700. The cheapest flight booked recently is on Multiple Airlines for just $616, but on average you can expect to pay $637.

Are there nonstop flights from Ontario to London for under $600 on Cheapflights?

There are no nonstop flights from Ontario to London, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to London for under $1700?

There are currently 20+ open flights from Ontario to London within the next 7 days for less than $1700.

How popular is this flight route?

Within the past month, 55 users have taken a look at flights from Ontario to London.

Is Ontario weather warmer or cooler than London?

Temperatures around the 95 °F's can be experienced in July. The weather in London is colder than in Ontario. Plan for potential changes in flight availability as peak weather approaches in this location.

Alternative routes for Ontario to London

Destination information for London

Things to know before you go. Useful info for your trip from Ontario to London
Today's exchange rate
$1 = £0.81
Average temperature for July in London
73.4 °F
Avg rainfall for July in London
1.6 ″

Airports servicing Ontario

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)