Cheap flights from the United Kingdom to London, Ontario from £363
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from United Kingdom to London
Keep the following information in mind while searching for United Kingdom to London flight deals. Data was last updated 13 June 2025.
Find flight deals from United Kingdom to London
Cheapest flights from United Kingdom to LondonExplore the most affordable flight options available from United Kingdom to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Explore the most affordable flight options available from United Kingdom to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from United Kingdom to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonLondon
LHR - YXU
LHRYXU
London Heathrow
Wed 2/7
09:30-17:07
2 stops12h 37m
London
Tue 15/7
09:55-06:30
2 stops15h 35m
LondonLondon
LHR - YXU
LHRYXU
London Heathrow
Wed 2/7
08:30-17:07
1 stop13h 37m
London
Tue 15/7
17:45-08:35
1 stop9h 50m
LondonLondon
LGW - YXU
LGWYXU
London Gatwick
Wed 2/7
09:40-17:07
1 stop12h 27m
London
Tue 15/7
09:55-09:50
2 stops18h 55m
LondonLondon
LHR - YXU
LHRYXU
London Heathrow
Tue 1/7
14:10-09:17
2 stops24h 07m
London
Fri 11/7
15:40-09:20
2 stops12h 40m
LondonLondon
LHR - YXU
LHRYXU
London Heathrow
Wed 2/7
19:15-17:07
3 stops26h 52m
London
Tue 15/7
17:45-16:35
3 stops17h 50m
LondonLondon
STN - YXU
STNYXU
London Stansted
Tue 1/7
08:15-21:00
3 stops41h 45m
London
Fri 11/7
06:00-18:25
2 stops31h 25m
LondonLondon
LGW - YXU
LGWYXU
London Gatwick
Wed 2/7
18:35-17:07
2 stops51h 32m
London
Tue 15/7
17:45-17:50
2 stops19h 05m
GlasgowLondon
GLA - YXU
GLAYXU
Glasgow Intl
Sun 27/7
14:20-05:14
2 stops43h 54m
London
Sun 3/8
06:15-13:25
3 stops26h 10m
LondonLondon
LCY - YXU
LCYYXU
London City
Wed 2/7
13:05-17:07
2 stops57h 02m
London
Tue 15/7
17:45-08:50
2 stops34h 05m
ManchesterLondon
MAN - YXU
MANYXU
Manchester
Sat 26/7
23:10-17:07
3 stops22h 57m
London
Sat 2/8
06:15-12:00
3 stops24h 45m
Best time to book a flight from United Kingdom to London
Have a flexible travel schedule? Discover the best time to fly to London from United Kingdom with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from the United Kingdom to London
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 inches per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 13 June 2025.
Read through reviews of airlines operating flights from United Kingdom to London, such as SWISS, United Airlines and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
Jeff,Feb 2025
BER - ZRH
Related info for your journey
Find useful and relevant information for your journey from United Kingdom to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for United Kingdom to London
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from United Kingdom to London
Discover the top airline that operate flights from United Kingdom to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from United Kingdom to London?
Deals for United Kingdom to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from United Kingdom to London?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to London for you. Better yet — we are completely free to use.
Can Cheapflights find flights from United Kingdom to London with no change fees?
Yes, we can. To see specific flights from United Kingdom to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from United Kingdom to London become cheaper?
Of course! You can now track prices for flights from United Kingdom to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.