Find flights
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to London, Ontario from £325

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
6 Apr — 13 Apr1
1 adult

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 1 April 2025.

Round-trip from

£480

One-way from

£325

Popular in

December

Cheapest in

March

Average price

£539
14/5-21/5
  • 14/5-21/5
  • 4 total stops
  • 53h 04m total
  • United Kingdom to London
Search Deals
12/5
  • 12/5
  • 2 total stops
  • 50h 39m total
  • United Kingdom to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from United Kingdom to London

Cheapest flights from United Kingdom to London
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 1 April 2025.

Wed 14/518:35LGW - YXU
2 stops31h 54mMultiple Airlines
Wed 21/515:45YXU - LGW
2 stops21h 10mMultiple Airlines
Deal found 31/3£480
Wed 14/506:50LHR - YXU
2 stops13h 14mAir Canada
Wed 21/515:45YXU - LHR
1 stop12h 50mAir Canada
Deal found 31/3£492
Mon 28/408:40LHR - YXU
2 stops16h 39mMultiple Airlines
Mon 5/515:45YXU - LHR
1 stop15h 05mMultiple Airlines
Deal found 31/3£497
Thu 1/507:25LHR - YXU
2 stops19h 03mLufthansa
Tue 13/515:45YXU - LHR
1 stop15h 05mLufthansa
Deal found 30/3£508
Thu 15/513:05LCY - YXU
2 stops49h 13mMultiple Airlines
Thu 22/509:55YXU - LCY
2 stops28h 00mMultiple Airlines
Deal found 30/3£535
Thu 15/506:55STN - YXU
2 stops13h 09mMultiple Airlines
Thu 22/515:45YXU - STN
2 stops22h 45mMultiple Airlines
Deal found 31/3£559
Mon 28/418:35LGW - YXU
2 stops30h 44mSWISS
Mon 5/515:45YXU - LGW
2 stops21h 05mSWISS
Deal found 31/3£577
Thu 15/516:40LHR - YXU
2 stops21h 39mUnited Airlines
Thu 22/515:45YXU - LHR
2 stops12h 35mUnited Airlines
Deal found 31/3£634
Mon 12/506:10GLA - YXU
2 stops32h 09mMultiple Airlines
Mon 19/506:15YXU - GLA
2 stops25h 05mMultiple Airlines
Deal found 1/4£650
Mon 28/408:45LCY - YXU
2 stops35h 03mLufthansa
Mon 5/515:45YXU - LCY
2 stops21h 50mLufthansa
Deal found 31/3£664
Thu 15/510:50MAN - YXU
3 stops33h 14mMultiple Airlines
Thu 22/515:45YXU - MAN
2 stops26h 05mMultiple Airlines
Deal found 31/3£687
Wed 14/514:10LHR - YXU
1 stop20h 04mWestJet
Wed 21/506:00YXU - LHR
1 stop25h 05mWestJet
Deal found 30/3£954

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 1 April 2025.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.

Fly from

United Kingdom

Fly to

London

Route

Depart

Return

Price

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Wed 14/5

18:35-21:29

2 stops31h 54m

London

Wed 21/5

15:45-17:55

2 stops21h 10m

£480

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 14/5

06:50-15:04

2 stops13h 14m

London

Wed 21/5

15:45-09:35

1 stop12h 50m

£492

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 28/4

08:40-20:19

2 stops16h 39m

London

Mon 5/5

15:45-11:50

1 stop15h 05m

£497

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 1/5

07:25-21:28

2 stops19h 03m

London

Tue 13/5

15:45-11:50

1 stop15h 05m

£508

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 15/5

13:05-09:18

2 stops49h 13m

London

Thu 22/5

09:55-18:55

2 stops28h 00m

£535

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 15/5

06:55-15:04

2 stops13h 09m

London

Thu 22/5

15:45-19:30

2 stops22h 45m

£559

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Mon 28/4

18:35-20:19

2 stops30h 44m

London

Mon 5/5

15:45-17:50

2 stops21h 05m

£577

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 15/5

16:40-09:19

2 stops21h 39m

London

Thu 22/5

15:45-09:20

2 stops12h 35m

£634

GlasgowLondon

GLA - YXU

GLAYXU

Glasgow Intl

Mon 12/5

06:10-09:19

2 stops32h 09m

London

Mon 19/5

06:15-12:20

2 stops25h 05m

£650

LondonLondon

LCY - YXU

LCYYXU

London City

Mon 28/4

08:45-14:48

2 stops35h 03m

London

Mon 5/5

15:45-18:35

2 stops21h 50m

£664

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 22 results
1
2
3

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 1 April 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.
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
SWISS
7.5
Good
1,570 reviews
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
United Airlines
7.4
Good
8,615 reviews
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
WestJet
7.2
Good
2,789 reviews
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Air Canada
7.0
Good
9,013 reviews
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Lufthansa
6.7
Okay
6,961 reviews
SWISS
7.5
Good
1,570 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

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.

  • What airport do you fly into for flights to London from United Kingdom?

    Located just 5.3 mi from the city center, London (YXU) is the airport most travelers will use when flying to London from United Kingdom.

  • What are the cheapest airlines to fly from United Kingdom to London, Ontario one-way?

    The cheapet airlines for a one-way flight from United Kingdom to London, Ontario are WestJet (£512), Lufthansa (£519), and United Airlines (£1,474).

  • What are the most popular routes from United Kingdom to London, Ontario?

    Most travelers choose London Heathrow - London, London Stansted - London or London Gatwick - London when deciding on the best route from United Kingdom to London, Ontario.

  • Can I find deals for flights from United Kingdom to London that include hotel bookings?

    Yes. In addition to deals on United Kingdom to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to London.

  • Can I find deals for business class flights from United Kingdom to London?

    Yes. Cheapflights offers flight deals from United Kingdom to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to London

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
Heathrow to Toronto Island flights
London City to Pearson Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
Gatwick to Toronto Island flights
Manchester to Pearson Intl flights
Stansted to Pearson Intl flights
Luton to Pearson Intl flights
Edinburgh to Pearson Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Manchester to Toronto Island flights
London City to Pierre Elliott Trudeau Intl flights
Southend to Pearson Intl flights
Glasgow Intl to Pearson Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Edinburgh to Toronto Island flights
Gatwick to Ottawa flights
London City to Ottawa flights
Birmingham to Pearson Intl flights
Manchester to Pierre Elliott Trudeau Intl flights
Heathrow to London flights
Dublin to Pearson Intl flights
Edinburgh to Pierre Elliott Trudeau Intl flights
Dublin to Toronto Island flights
Istanbul to Pearson Intl flights
Newcastle upon Tyne to Pearson Intl flights
Birmingham to Toronto Island flights
Gatwick to Region of Waterloo Intl flights
Stansted to London flights
Gatwick to London flights
Leeds to Pearson Intl flights
Inverness to Pearson Intl flights
Glasgow Intl to Pierre Elliott Trudeau Intl flights
Belfast Intl to Pearson Intl flights
Manchester to Ottawa flights
Bristol to Pearson Intl flights

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 1 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£489Average£596FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.