£40 Cheap Flights to London

View £40 flight on Tue, 21 Apr 2026Opens in a new window

Popular airlines to London

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Cheap round-trip flights to London

Prices were available within the past 7 days and start at £40 for one-way flights and £74 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Flair Airlines
Tue, 21 Apr - Mon, 27 Apr
YYC
Calgary
YKF
Kitchener
£74 Return, found 1 day ago
£74
Return
found 1 day ago
Select Flair Airlines flight, departing Tue, 21 Apr from Calgary to Kitchener, returning Mon, 27 Apr, priced at £74 found 1 day ago
WestJet
Mon, 6 Apr - Thu, 9 Apr
YYC
Calgary
YKF
Kitchener
£81 Return, found 16 hours ago
£81
Return
found 16 hours ago
Select WestJet flight, departing Mon, 6 Apr from Calgary to Kitchener, returning Thu, 9 Apr, priced at £81 found 16 hours ago
Porter Airlines
Fri, 8 May - Tue, 12 May
YYC
Calgary
YHM
Hamilton
£101 Return, found 6 days ago
£101
Return
found 6 days ago
Select Porter Airlines flight, departing Fri, 8 May from Calgary to Hamilton, returning Tue, 12 May, priced at £101 found 6 days ago
Air Transat
Sat, 2 May - Sat, 9 May
YYC
Calgary
YHM
Hamilton
£126 Return, found 4 days ago
£126
Return
found 4 days ago
Select Air Transat flight, departing Sat, 2 May from Calgary to Hamilton, returning Sat, 9 May, priced at £126 found 4 days ago
Air Canada
Mon, 9 Mar - Mon, 16 Mar
YYC
Calgary
YHM
Hamilton
£232 Return, found 4 days ago
£232
Return
found 4 days ago
Select Air Canada flight, departing Mon, 9 Mar from Calgary to Hamilton, returning Mon, 16 Mar, priced at £232 found 4 days ago

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Expedia flights to London

Searching for cheap flights to London? No travel company presents more choices than Expedia if you're looking to compare flights to London. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to . Expedia provides the cheapest flights to many destinations in and you may find even greater savings if you combine your flight with a hotel stay in London.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to London for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your London flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Frequently asked questions

What is the name of London's airport?
London has one main airport, London Intl. Airport (YXU).
How far is London Intl. Airport (YXU) from central London?
London Intl. Airport is near the centre of the city. It's a mere 10 kms (6 miles) from downtown London.
What airport is best to fly into London?
With one major airport servicing London, it won't take you long to get your hands on the best flight. You'll be jetting off to YXU, which is located around 10 kms (6 miles) from the centre of town.
How many airlines fly to London?
There are 5 air carriers connecting London with 7 airports across the world.
Which airlines fly to London?
Flights into London are typically run by Air Canada. The largest proportion of these flights set off from Toronto, with Air Canada servicing this route the most.
How many nonstop flights are there to London?
With approximately 37 nonstop flights running each week, you'll be landing in London before you have time to say, "Are we there yet?"
Where are the most popular flights to London departing from?
A large number of flights to London take off from Toronto, Calgary and Cancun airports.
How long is the flight to London Airport?
If you're going to London from Toronto, you're looking at a flight duration of 50 minutes. Those setting off from Calgary can expect to be travelling for 3 hours and 43 minutes. From Cancun it's roughly 3 hours and 45 minutes away.
How to book the cheapest flight to London?
If you want to have some extra spending money on your trip to London, then listen up! As any seasoned jet-setter will tell you, don't leave booking until the last minute. Airfares are usually more expensive just prior to the departure date. Don't stop there, though. Do some research and check if there are a couple of airports at your destination. Ticket prices often differ depending on the airport you jet into. Make sure you compare fares across air carriers too. Lastly, be prepared to secure your seat quickly if you find a real bargain. It might not be available for too long! With a bit of know-how and a little luck, the ideal airfare will be yours.
Do you have any tips for my flight to London?
If you're poorly prepared, airports and flying can be testing. But there's no need to hit the panic button just yet. Follow these handy hints for a stress-free start to your getaway in London. What to pack in your hand luggage:

  • The trick to having a worry-free flight experience is to pack ahead. Start with the essentials: passport, travel docs, credit cards and medications. Next, bring items that'll help keep you occupied, like some electronic gadgets or a good book. You'll also want to pack your chargers, a quality neck pillow and a pair of headphones. And of course, don't forget to squeeze in toiletries like a toothbrush, lip balm and a fresh change of clothes.

Do not pack the following items in your hand luggage:

  • While the list of banned items differs between air carriers, the general rule of thumb is nothing sharp, flammable or explosive. This includes screwdrivers, pocket knives, aerosol cans and bleaching agents. Sporting equipment like baseball bats, and items that could harm other people, such as swords and guns, are also banned from the cabin.

What to wear on a flight:

  • You'll want to go for comfort over style. Prepare for changes in temperature by dressing in layers, and opt for flat, easy-to-remove shoes like slip-ons.
  • Deep vein thrombosis (DVT), a blood clot condition caused by prolonged inactivity, can be a risk on long-haul flights. Try to walk around the cabin or do some simple exercises in your seat to promote better circulation.

How to get through airport security fast when flying to London?
Being prepared before you get to the airport can make your trip to London quick and painless. Below you'll find some handy hints for a speedy journey through security:

  • First things first. Your travel ID and boarding pass will need to be presented to security personnel. Have them easily accessible to avoid fumbling around for them.
  • The X-ray machine comes next. Empty your pockets and remove anything metal that is likely to set off the alarm. This includes things like headphones or earphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • For just a few minutes, you'll have to unplug from the digital world. Your laptop, phone and any other electronic devices will also need to be sent through the scanner.
  • Travelling with a new hand and nail cream? No problem. As long as the volume is no greater than 3.4 ounces (100 millilitres) and it's stored in a clear zip-lock bag, you're allowed to bring it with you in your carry-on bag.
  • There's a possibility that you'll be required to remove your shoes to be X-rayed, so wearing lightweight sneakers is always a wise idea.
  • Airlines will not allow any sharp objects in the cabin. If you must bring these kinds of items, put them in your checked baggage.

Flights to London information
Destination airport
Region of Waterloo Intl.
Destination airport IATA code
YKF
Destination city name
Kitchener
Return price
£74

Trending flights to London

Prices were available within the past 7 days and start at £40 for one-way flights and £74 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 24 Feb - Tue, 3 Mar
LHR
London
YKF
Kitchener
£429 Return, found 2 days ago
£429
Return
found 2 days ago
Select Air Canada flight, departing Tue, 24 Feb from London to Kitchener, returning Tue, 3 Mar, priced at £429 found 2 days ago

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