Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to the United Kingdom from C$ 509

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from London to United Kingdom
Explore the most affordable flight options available from London to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2026.

Wed 29/73:30 p.m.
YXU
-
EDI
2 stops11h 10m
Air Canada
Wed 5/89:00 a.m.
EDI
-
YXU
1 stop13h 42m
Air Canada
Deal found 14/6C$ 940
Tue 28/710:05 a.m.
YXU
-
EDI
1 stop16h 15m
Air Canada
Tue 4/89:00 a.m.
EDI
-
YXU
1 stop13h 42m
Air Canada
Deal found 13/6C$ 941
Fri 18/95:40 a.m.
YXU
-
EDI
1 stop20h 40m
Air Canada
Tue 22/99:40 a.m.
EDI
-
YXU
2 stops28h 40m
Air Canada
Deal found 14/6C$ 1,010
Fri 11/96:20 p.m.
YXU
-
MAN
1 stop31h 10m
Air Canada
Tue 15/96:05 a.m.
MAN
-
YXU
2 stops13h 50m
Air Canada
Deal found 17/6C$ 1,025
Fri 18/93:30 p.m.
YXU
-
EDI
2 stops35h 35m
United Airlines
Tue 22/99:40 a.m.
EDI
-
YXU
2 stops17h 00m
United Airlines
Deal found 17/6C$ 1,041
Sun 11/1010:05 a.m.
YXU
-
LHR
2 stops16h 10m
United Airlines
Wed 14/108:00 a.m.
LHR
-
YXU
2 stops18h 40m
United Airlines
Deal found 17/6C$ 1,089
Fri 18/910:05 a.m.
YXU
-
LHR
2 stops16h 10m
United Airlines
Tue 22/98:00 a.m.
LHR
-
YXU
2 stops18h 40m
United Airlines
Deal found 16/6C$ 1,090
Sun 25/103:25 p.m.
YXU
-
LHR
1 stop15h 55m
Multiple Airlines
Mon 9/1111:10 a.m.
LHR
-
YXU
2 stops15h 36m
Multiple Airlines
Deal found 13/6C$ 1,136
Sun 11/106:20 p.m.
YXU
-
LHR
1 stop10h 15m
Air Canada
Wed 14/108:40 a.m.
LHR
-
YXU
2 stops18h 00m
Air Canada
Deal found 17/6C$ 1,140
Fri 18/96:20 p.m.
YXU
-
LHR
1 stop9h 15m
Air Canada
Tue 22/96:00 a.m.
LHR
-
YXU
2 stops16h 43m
Air Canada
Deal found 13/6C$ 1,142
Tue 7/76:20 p.m.
YXU
-
LHR
1 stop12h 30m
Air Canada
Tue 14/79:30 a.m.
LHR
-
YXU
2 stops16h 02m
Air Canada
Deal found 13/6C$ 1,328
Thu 30/73:30 p.m.
YXU
-
GLA
2 stops26h 40m
Multiple Airlines
Thu 6/86:00 a.m.
GLA
-
YXU
2 stops16h 42m
Multiple Airlines
Deal found 15/6C$ 1,355

Find flight deals from London to United Kingdom

Keep the following information in mind while searching for London to United Kingdom flight deals. Data was last updated 18 June 2026.

Round-trip from

C$ 940

One-way from

C$ 509
Air Canada
  • Air Canada
  • 29/7-5/8
  • 3 total stops
  • 24h 52m total
  • London to United Kingdom
Search Deals
12/7
  • 12/7
  • 3 total stops
  • 43h 35m total
  • London to United Kingdom
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to United Kingdom 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 629,999 searches. Data last updated 18 June 2026.
Use the filters below to find and compare flights from London to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonEdinburgh

YXU - EDI

YXUEDI

London

Tue 28/7

10:05 a.m.-7:20 a.m.

1 stop16h 15m

Edinburgh Turnhouse

Tue 4/8

9:00 a.m.-5:42 p.m.

1 stop13h 42m

C$ 941

LondonEdinburgh

YXU - EDI

YXUEDI

London

Fri 18/9

5:40 a.m.-7:20 a.m.

1 stop20h 40m

Edinburgh Turnhouse

Tue 22/9

9:40 a.m.-9:20 a.m.

2 stops28h 40m

C$ 1,010

LondonManchester

YXU - MAN

YXUMAN

London

Fri 11/9

6:20 p.m.-6:30 a.m.

1 stop31h 10m

Manchester

Tue 15/9

6:05 a.m.-2:55 p.m.

2 stops13h 50m

C$ 1,025

LondonEdinburgh

YXU - EDI

YXUEDI

London

Fri 18/9

3:30 p.m.-8:05 a.m.

2 stops35h 35m

Edinburgh Turnhouse

Tue 22/9

9:40 a.m.-9:40 p.m.

2 stops17h 00m

C$ 1,041

LondonLondon

YXU - LHR

YXULHR

London

Sun 11/10

10:05 a.m.-7:15 a.m.

2 stops16h 10m

London Heathrow

Wed 14/10

8:00 a.m.-9:40 p.m.

2 stops18h 40m

C$ 1,089

LondonLondon

YXU - LHR

YXULHR

London

Fri 18/9

10:05 a.m.-7:15 a.m.

2 stops16h 10m

London Heathrow

Tue 22/9

8:00 a.m.-9:40 p.m.

2 stops18h 40m

C$ 1,090

LondonLondon

YXU - LHR

YXULHR

London

Sat 7/11

5:45 a.m.-5:55 a.m.

2 stops19h 10m

London Heathrow

Sat 14/11

10:25 a.m.-9:46 p.m.

2 stops16h 21m

C$ 1,090

LondonLondon

YXU - LHR

YXULHR

London

Wed 25/11

5:45 a.m.-5:55 a.m.

2 stops19h 10m

London Heathrow

Sun 6/12

8:00 a.m.-9:46 p.m.

2 stops18h 46m

C$ 1,090
Quickest round-trip

LondonLondon

YXU - LHR

YXULHR

London

Fri 18/9

6:20 p.m.-8:35 a.m.

1 stop9h 15m

London Heathrow

Tue 22/9

6:00 a.m.-5:43 p.m.

2 stops16h 43m

C$ 1,142

LondonEdinburgh

YXU - EDI

YXUEDI

London

Wed 16/9

5:40 a.m.-7:20 a.m.

1 stop20h 40m

Edinburgh Turnhouse

Tue 22/9

12:30 p.m.-9:40 p.m.

2 stops14h 10m

C$ 1,146

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 58 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from London to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from London with our price prediction graph.
Estimated round-trip 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 London to the United Kingdom
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 18 June 2026.
Get a feel of what it's like to fly with Air Canada from London to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,210 reviews
Check prices

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Comfort

7.1

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!
Air Canada
7.1
Good
11,210 reviews
Air Canada
7.1
Good
11,210 reviews
Check prices

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Comfort

7.1

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!

Related info for your journey

Find useful and relevant information for your journey from London to United Kingdom. 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 from for flights from London to United Kingdom?

    London (YXU) is the airport you will fly out of if you book a flight from London to United Kingdom. It is only a 8.6 km journey to London (YXU) from London’s city centre.

  • How long is the flight from London, Ontario to United Kingdom?

    There are many flights that can get you from London, Ontario to United Kingdom in 13h 50m. Fly via Air Canada, United Airlines, or Lufthansa to get the fastest option. London, Ontario and United Kingdom are separated by a distance of 5874 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    While some choose either London - Glasgow Intl or London - London Gatwick, London - London Heathrow is the most popular route from London, Ontario to United Kingdom.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to United Kingdom 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 London to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Charles de Gaulle flights
Pearson Intl to Heathrow flights
Pearson Intl to Gatwick flights
Pearson Intl to Istanbul flights
Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Orly flights
Pearson Intl to Charles de Gaulle flights
Pierre Elliott Trudeau Intl to Lisbon flights
Pearson Intl to Lisbon flights
Pierre Elliott Trudeau Intl to Athens flights
Pearson Intl to Dublin flights
Pearson Intl to Stansted flights
Pearson Intl to London City flights
Pierre Elliott Trudeau Intl to Barcelona-El Prat flights
Toronto Island to Heathrow flights
Pierre Elliott Trudeau Intl to Istanbul flights
Pierre Elliott Trudeau Intl to Heathrow flights
Pearson Intl to Athens flights
Pearson Intl to Madrid flights
Toronto Island to Gatwick flights
Pearson Intl to Luton flights
Pearson Intl to Frankfurt flights
Pearson Intl to Orly flights
Pearson Intl to Barcelona-El Prat flights
Pearson Intl to Frederic Chopin flights
Pierre Elliott Trudeau Intl to Beauvais-Tille flights
Toronto Island to Charles de Gaulle flights
Pearson Intl to Sabiha Gokcen flights
Pearson Intl to Amsterdam flights
Pierre Elliott Trudeau Intl to Bruxelles-National flights
Toronto Island to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Edinburgh flights
Pierre Elliott Trudeau Intl to Malpensa flights
Pierre Elliott Trudeau Intl to Gatwick flights
Pierre Elliott Trudeau Intl to Málaga flights
Pierre Elliott Trudeau Intl to Marseille flights
Pierre Elliott Trudeau Intl to Amsterdam flights
Pearson Intl to Ponta Delgada flights
Pierre Elliott Trudeau Intl to Lyon flights
Toronto Island to Lisbon flights
Pierre Elliott Trudeau Intl to Nice flights
Pearson Intl to Zurich flights
Pierre Elliott Trudeau Intl to Madrid flights
Pearson Intl to Manchester flights
Toronto Island to Dublin flights
Pierre Elliott Trudeau Intl to Geneva flights
Toronto Island to Madrid flights
Pearson Intl to Ciampino flights
Pearson Intl to Vicenza flights

Top airline flying from London to United Kingdom

Discover the top airline that operate flights from London to United Kingdom. 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 629,999 searches. Data last updated 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 879AverageC$ 1,261FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to United Kingdom?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to United Kingdom from London today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to United Kingdom for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to United Kingdom, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.