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 (£563), Lufthansa (£597), and SWISS (£1,189).

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.

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).

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

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

What is the cheapest month to fly from United Kingdom to London, Ontario?

The best pricing can be found in the month of March. Prices to London, Ontario from United Kingdom average £609. You can even find prices in March for less than £609, as users have found deals to London, Ontario from as low as £420. The month of December appears to be one of the more expensive times to travel to London, Ontario from United Kingdom. Flying in the targeted month can save you up to 62%.

What is the cheapest time of day to fly from GB to YXU?

When flying from United Kingdom to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£812+ Flights from the United Kingdom to London, Ontario

Cheap flight deals from United Kingdom to London

Round-trip from	£566
One-way from	£492
Popular in	December
Cheapest in	March
Average price	£594

Air Canada
8/8-15/8
2 total stops
30h 52m total
United Kingdom to London

Search Deals

8/8
2 total stops
19h 47m total
United Kingdom to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£88 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£26 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 26 June 2025.

Fri 8/808:30LHR - YXU

1 stop11h 32mMultiple Airlines

Fri 15/806:15YXU - LHR

1 stop19h 20mMultiple Airlines

Deal found 24/6£566

Thu 3/715:00LHR - YXU

2 stops35h 27mAir Canada

Thu 31/717:45YXU - LHR

2 stops22h 15mAir Canada

Deal found 25/6£566

Fri 8/806:40STN - YXU

2 stops31h 37mMultiple Airlines

Fri 15/809:55YXU - STN

3 stops28h 55mMultiple Airlines

Deal found 24/6£611

Wed 24/908:50MAN - YXU

2 stops17h 37mSWISS

Sun 28/915:40YXU - MAN

2 stops35h 25mSWISS

Deal found 23/6£643

Wed 24/906:05MAN - YXU

2 stops37h 57mLufthansa

Sun 28/909:55YXU - MAN

2 stops17h 30mLufthansa

Deal found 25/6£660

Mon 4/808:00LHR - YXU

2 stops18h 27mUnited Airlines

Mon 11/817:45YXU - LHR

2 stops11h 55mUnited Airlines

Deal found 24/6£675

Mon 4/808:30LHR - YXU

1 stop11h 32mLufthansa

Mon 11/815:40YXU - LHR

1 stop9h 55mLufthansa

Deal found 25/6£680

Wed 6/818:35LGW - YXU

2 stops27h 32mSWISS

Wed 13/817:45YXU - LGW

2 stops19h 10mSWISS

Deal found 24/6£751

Fri 8/819:30LCY - YXU

2 stops26h 37mMultiple Airlines

Fri 15/806:15YXU - LCY

3 stops21h 30mMultiple Airlines

Deal found 24/6£783

Fri 8/806:00LHR - YXU

2 stops16h 07mSWISS

Fri 15/817:45YXU - LHR

2 stops38h 15mSWISS

Deal found 24/6£787

Wed 6/820:10GLA - YXU

2 stops23h 52mMultiple Airlines

Wed 13/817:45YXU - GLA

2 stops16h 40mMultiple Airlines

Deal found 24/6£793

Sat 9/806:05MAN - YXU

3 stops20h 22mMultiple Airlines

Sat 16/809:55YXU - MAN

3 stops17h 30mMultiple Airlines

Deal found 25/6£799

Best flights from United Kingdom to London
Discover carefully curated flight deals from United Kingdom to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 June 2025.

Fri 8/808:30LHR - YXU

1 stop11h 32mMultiple Airlines

Fri 15/806:15YXU - LHR

1 stop19h 20mMultiple Airlines

Deal found 24/6£566

Thu 7/812:00LHR - YXU

2 stops14h 27mAir Canada

Thu 14/809:55YXU - LHR

2 stops19h 05mAir Canada

Deal found 25/6£579

Wed 24/908:50MAN - YXU

2 stops17h 37mSWISS

Sun 28/915:40YXU - MAN

2 stops35h 25mSWISS

Deal found 23/6£643

Wed 24/906:05MAN - YXU

2 stops37h 57mLufthansa

Sun 28/909:55YXU - MAN

2 stops17h 30mLufthansa

Deal found 25/6£660

Mon 4/808:00LHR - YXU

2 stops18h 27mUnited Airlines

Mon 11/817:45YXU - LHR

2 stops11h 55mUnited Airlines

Deal found 24/6£675

Mon 4/810:35LGW - YXU

2 stops23h 39mWestJet

Mon 11/806:00YXU - LGW

2 stops46h 25mWestJet

Deal found 25/6£1,219

Fri 8/806:40STN - YXU

2 stops31h 37mMultiple Airlines

Fri 15/809:55YXU - STN

3 stops28h 55mMultiple Airlines

Deal found 24/6£611

Mon 4/808:30LHR - YXU

1 stop11h 32mLufthansa

Mon 11/815:40YXU - LHR

1 stop9h 55mLufthansa

Deal found 25/6£680

Wed 6/818:35LGW - YXU

2 stops27h 32mSWISS

Wed 13/817:45YXU - LGW

2 stops19h 10mSWISS

Deal found 24/6£751

Thu 7/806:00LHR - YXU

2 stops16h 07mSWISS

Thu 14/817:45YXU - LHR

3 stops22h 45mSWISS

Deal found 26/6£781

Fri 8/819:30LCY - YXU

2 stops26h 37mMultiple Airlines

Fri 15/806:15YXU - LCY

3 stops21h 30mMultiple Airlines

Deal found 24/6£783

Wed 6/820:10GLA - YXU

2 stops23h 52mMultiple Airlines

Wed 13/817:45YXU - GLA

2 stops16h 40mMultiple Airlines

Deal found 24/6£793

Last-minute flights from United Kingdom to London
Discover last-minute flight deals from United Kingdom to London. Data last updated 26 June 2025 and is based on user searches.

Wed 2/709:30LHR - YXU

3 stops16h 57mUnited Airlines

Thu 31/717:45YXU - LHR

2 stops12h 40mUnited Airlines

Deal found 25/6£723

Wed 2/708:50LGW - YXU

2 stops17h 37mMultiple Airlines

Thu 31/709:55YXU - LGW

3 stops31h 10mMultiple Airlines

Deal found 25/6£922

Wed 2/718:35LGW - YXU

2 stops51h 32mSWISS

Thu 31/717:45YXU - LGW

2 stops43h 05mSWISS

Deal found 25/6£927

Wed 2/708:45LCY - YXU

2 stops29h 32mMultiple Airlines

Thu 31/715:40YXU - LCY

2 stops21h 55mMultiple Airlines

Deal found 25/6£942

Thu 3/715:00LHR - YXU

2 stops35h 27mAir Canada

Thu 31/717:45YXU - LHR

2 stops22h 15mAir Canada

Deal found 25/6£566

Thu 3/709:25LCY - YXU

2 stops36h 42mSWISS

Thu 31/717:45YXU - LCY

2 stops34h 00mSWISS

Deal found 25/6£1,128

Tue 22/707:00LCY - YXU

2 stops15h 07mMultiple Airlines

Tue 29/717:45YXU - LCY

2 stops14h 00mMultiple Airlines

Deal found 24/6£825

Tue 22/721:35LGW - YXU

3 stops28h 52mMultiple Airlines

Tue 29/720:00YXU - LGW

3 stops33h 55mMultiple Airlines

Deal found 24/6£913

Tue 22/707:40LHR - YXU

2 stops14h 27mMultiple Airlines

Tue 29/706:15YXU - LHR

3 stops24h 40mMultiple Airlines

Deal found 24/6£1,142

One-way flights from United Kingdom to London
Search for one-way flight options from United Kingdom to London. Find affordable one-way fares based on user searches. Data last updated 26 June 2025.

Fri 8/806:40STN - YXU

2 stops19h 47mMultiple Airlines

Deal found 24/6£492

Fri 15/821:10LHR - YXU

3 stops37h 04mMultiple Airlines

Deal found 24/6£498

Tue 1/711:35LGW - YXU

2 stops34h 32mMultiple Airlines

Deal found 24/6£544

Fri 8/810:45LGW - YXU

2 stops47h 29mWestJet

Deal found 24/6£563

Fri 8/808:30LHR - YXU

1 stop11h 32mLufthansa

Deal found 24/6£597

Sun 10/814:10LHR - YXU

1 stop20h 04mWestJet

Deal found 26/6£703

Tue 1/713:40LCY - YXU

2 stops30h 22mMultiple Airlines

Deal found 24/6£725

Mon 25/818:40MAN - YXU

2 stops27h 27mSWISS

Deal found 24/6£1,189

Fri 8/819:30LCY - YXU

2 stops26h 37mSWISS

Deal found 24/6£1,399

Sun 10/818:40LGW - YXU

2 stops51h 27mSWISS

Deal found 26/6£1,409

Fri 8/809:30LHR - YXU

3 stops16h 57mUnited Airlines

Deal found 24/6£1,965

Cheapflights Fare Finder

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

Fri 8/8

08:30-15:02

1 stop11h 32m

London

Fri 15/8

06:15-06:35

1 stop19h 20m

£566

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 7/8

12:00-21:27

2 stops14h 27m

London

Thu 14/8

09:55-10:00

2 stops19h 05m

£579

LondonLondon

STN - YXU

STNYXU

London Stansted

Fri 8/8

06:40-09:17

2 stops31h 37m

London

Fri 15/8

09:55-19:50

3 stops28h 55m

£611

ManchesterLondon

MAN - YXU

MANYXU

Manchester

Wed 24/9

08:50-21:27

2 stops17h 37m

London

Sun 28/9

15:40-08:05

2 stops35h 25m

£643

ManchesterLondon

MAN - YXU

MANYXU

Manchester

Wed 24/9

06:05-15:02

2 stops37h 57m

London

Sun 28/9

09:55-08:25

2 stops17h 30m

£660

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 4/8

08:00-21:27

2 stops18h 27m

London

Mon 11/8

17:45-10:40

2 stops11h 55m

£675

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 4/8

08:30-15:02

1 stop11h 32m

London

Mon 11/8

15:40-06:35

1 stop9h 55m

£680

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Wed 6/8

18:35-17:07

2 stops27h 32m

London

Wed 13/8

17:45-17:55

2 stops19h 10m

£751

LondonLondon

LCY - YXU

LCYYXU

London City

Fri 8/8

19:30-17:07

2 stops26h 37m

London

Fri 15/8

06:15-08:45

3 stops21h 30m

£783

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 8/8

06:00-17:07

2 stops16h 07m

London

Fri 15/8

17:45-13:00

2 stops38h 15m

£787

Flights are sorted by cheapest return flights first.

Deals found on 24/6

Showing 1-10 of 27 results

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Read reviews from past customers who have flown with SWISS, United Airlines, andWestJet from the United Kingdom to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,649 reviews

Check prices

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

1,649 reviews

SWISS

7.5

Good

1,649 reviews

Check prices

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

8,838 reviews

SWISS

7.5

Good

1,649 reviews

Check prices

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

2,893 reviews

SWISS

7.5

Good

1,649 reviews

Check prices

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

7.1

Good

9,629 reviews

SWISS

7.5

Good

1,649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

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

Lufthansa

6.8

Okay

7,188 reviews

SWISS

7.5

Good

1,649 reviews

Check prices

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

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 (£563), Lufthansa (£597), and SWISS (£1,189).
What are the most popular routes from United Kingdom to London, Ontario?
Most travelers choose London Heathrow - London, London Gatwick - London or London City - 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

Alternative routes for United Kingdom to London

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Top airline flying from United Kingdom to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£447	Average£616	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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.

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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.

Cheap flights from the United Kingdom to London, Ontario from £492

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 8/8. 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 26 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 26 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 26 June 2025.

Cheapflights Fare Finder

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

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

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 26 June 2025.

Read reviews from past customers who have flown with SWISS, United Airlines, andWestJet from the United Kingdom to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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.

Top airline flying from United Kingdom to London

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?

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to London?

Can Cheapflights find flights from United Kingdom to London with no change fees?

Can Cheapflights notify me if prices for flights from United Kingdom to London become cheaper?

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Travel Smart

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 26 June 2025.