$20 Cheap Flights to London

View $20 flight on Fri, Apr 24, 2026Opens in a new window

Popular airlines to London

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How much is the cheapest flight to London?

Prices were available within the past 7 days and start at $20 for one-way flights and $47 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Wed, May 6 - Thu, May 7
MAD
Madrid
STN
London
$47 Roundtrip, found 3 days ago
$47
Roundtrip
found 3 days ago
Select Ryanair flight, departing Wed, May 6 from Madrid to London, returning Thu, May 7, priced at $47 found 3 days ago
Wizz Air UK
Wed, May 20 - Wed, Jun 3
MAD
Madrid
LTN
London
$54 Roundtrip, found 7 hours ago
$54
Roundtrip
found 7 hours ago
Select Wizz Air UK flight, departing Wed, May 20 from Madrid to London, returning Wed, Jun 3, priced at $54 found 7 hours ago
easyJet
Fri, Apr 24 - Tue, May 12
BCN
Barcelona
LTN
London
$75 Roundtrip, found 3 hours ago
$75
Roundtrip
found 3 hours ago
Select easyJet flight, departing Fri, Apr 24 from Barcelona to London, returning Tue, May 12, priced at $75 found 3 hours ago
Vueling Airlines
Fri, Jun 12 - Tue, Jun 16
BCN
Barcelona
LGW
London
$76 Roundtrip, found 1 day ago
$76
Roundtrip
found 1 day ago
Select Vueling Airlines flight, departing Fri, Jun 12 from Barcelona to London, returning Tue, Jun 16, priced at $76 found 1 day ago
Iberia
Wed, May 20 - Mon, Jun 1
MAD
Madrid
LGW
London
$115 Roundtrip, found 1 day ago
$115
Roundtrip
found 1 day ago
Select Iberia flight, departing Wed, May 20 from Madrid to London, returning Mon, Jun 1, priced at $115 found 1 day ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $1,095
LHR
Heathrow
Cheapest
Average driving time to city center28 min
Flights from $1,095
Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $1,141
LGW
Gatwick
Average driving time to city center52 min
Flights from $1,141

Find the cheapest month to fly from Columbus (CMH) to London (LON)

November is typically the cheapest month to fly

From $685 - $1,073 per traveler.

Frequently asked questions

What month is the cheapest to fly to London?
The cheapest month to fly to London is May when demand is low. Off-peak months are typically when you'll find cheap flights. To keep costs down, avoid flying during school breaks and major holidays.
Which US cities fly direct to London?
You can fly to London without a stopover from 31 US destinations. To find a nonstop journey, check "Direct flights only" when searching for flights to London on Expedia. Then, compare the options and pick the best departure out of any of these cities:

  • New York
  • Los Angeles
  • Chicago
  • Boston
  • Newark

How to find a cheap flight to London?
Book early for the best chance of scoring cheap flights to London. Also, consider traveling during off-season months like January and February. If you leave on a Thursday, you can save 16% on average compared to departing on a Sunday.* Save time checking every day and create a price alert on the Expedia app. We'll send you a notification when fares change.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to London?
Although booking in advance is generally the easiest way to save money, don't worry if your London trip is last minute. You can still find cheap flights to London, especially if your plans have some flexibility. Try switching up your travel dates, looking at different ticket types or departing from another airport.
How far in advance should I book a flight to London?
Lock in your flight to London two to four months ahead if you're jetting in from an international destination. For domestic travel, the recommendation is around 28 days in advance. Lower fares and a wider variety of departure dates, times and seating options are just some of the perks of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to London?
You can save an average of 8% if you purchase tickets on a Sunday rather than Fridays, which tend to be the priciest day to book.* When it comes to getting a cheap flight to London, timing makes a difference.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to London?
There are 81 carriers connecting London with 198 airports across the world. The chief gateway to this city is Heathrow Airport (LHR). Book a ticket with any of these well-known airlines to London:

  • Aer Lingus
  • British Airways
  • Lufthansa
  • Iberia

Where do you fly into London?
When flying to London, the main airport for arrivals is London City Airport (LCY). You can also head for nearby hubs like Heathrow Airport (LHR), Gatwick Airport (LGW) or Luton Airport (LTN). Another option to keep in mind when you fly to London is Stansted Airport (STN).
How far is the airport from central London?
You'll be about 7 mi east of central London after landing at London City Airport (LCY).
Can I save money by booking a London trip package?
Book a London flight and hotel package deal on Expedia, and you can make significant savings. It's simple to bundle your accommodations and flights, and you can also add car rentals and activities to create your own customized London trip. Plus, nothing beats the convenience of booking everything in the same place.
Can I change or cancel my flight to London?
It's often possible to cancel or change your flight to London. Many airlines let you cancel your flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may issue you a credit toward a future flight rather than a direct refund. To find affordable flights to London with flexible change policies, select "No cancel fee" or "Changes included" when you search. Need more information? Visit our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

Travel information

Destination airport
Luton
Destination airport IATA code
LTN
Destination city name
London
Roundtrip price
$53

Trending flights to London

Prices were available within the past 7 days and start at $20 for one-way flights and $47 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Norse Atlantic UK
Thu, Jul 23 - Thu, Aug 27
MCO
Orlando
LGW
London
$462 Roundtrip, found 1 hour ago
$462
Roundtrip
found 1 hour ago
Select Norse Atlantic UK flight, departing Thu, Jul 23 from Orlando to London, returning Thu, Aug 27, priced at $462 found 1 hour ago

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