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Cheap Flights to London, United Kingdom

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Top Airlines Offering Cheap Flights to London, United Kingdom

Here are the most popular airlines offering cheap flights to London from the U.S. and other countries. 

Find Major Airports in London

London has six major airports catering to various preferences and needs. Some serve millions of passengers, while others are smaller.

London City Airport, situated in Docklands, east London, is the smallest and the closest major airport to central London. Notably,  a flight ban is in effect between 22:30 and 06:30. It is the only major airport in London with a city center location, making it a convenient option for business travelers and visitors to central London.

London Heathrow Airport in Hillingdon, west London, takes the crown as the busiest airport in the UK and ranks among the busiest worldwide. It is a major hub for full-service airlines, such as British Airways and Virgin Atlantic.

London Gatwick Airport in Crawley, West Sussex, is the second busiest airport in the UK. It is a major hub for budget airlines, such as EasyJet and Norwegian Air Shuttle.

For those seeking affordability, London Luton Airport in Luton, Bedfordshire, is a low-cost option with a diverse selection of European destinations, including Amsterdam, Budapest, and Bucharest.

London Stansted Airport in Stansted Mountfitchet, Essex, is another economical choice, providing access to a broad range of European and even long-haul destinations. 

London Southend Airport in Southend-on-Sea, Essex, though smaller in scale, offers good connections to central London despite having a limited number of airlines and destinations.

Flights to London Snapshot

Economy Class

OneAir - Travel the world for less
TOTAL NUMBER OF ECONOMY CLASS DEALS TO London IN THE LAST MONTH​

33

Seat - Cheap Flights - OneAir
AVERAGE ONEAIR INTERNATIONAL ECONOMY ROUNDTRIP DEAL​ TO London

$620

Business Class

OneAir - Travel the world for less
TOTAL NUMBER OF BUSINESS CLASS DEALS TO LondonIN THE LAST MONTH​

28

Business Class - Cheap Flights - OneAir
AVERAGE ONEAIR INTERNATIONAL BUSINESS CLASS ROUNDTRIP DEAL​ TO London

$2644

The Cheapest Time to Fly to London

The cheapest time to fly to London from the U.S. is typically in January, when flight prices are at their lowest, especially from Boston at around $340. February is another excellent option for budget-conscious travelers, with average flight prices from the United States hovering around $336, again starting from Boston.

 

For those seeking to save on both flights and accommodation, the best period to visit London is between November and March. During this time, prices for both tend to be lower due to the cooler weather and increased rainfall.


To avoid the usual tourist crowds, it’s advisable to plan your trip during the off-season, which spans from January to April, and then again from September to November. These periods are when you’re likely to find the most favorable deals on flights and lodging.

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Cheapest months to fly

Dec-Jan

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Most Expensive Months to Fly

July

Compare Prices

Here’s a breakdown of the airfare when flying to Heathrow Airport (LHR) from Boston Logan International Airport (BOS).

No Data Found

Frequently Asked Questions

The best time to visit London is during Spring, from March to May. This is when the city is bustling with activity, and the parks are in full bloom. The chilly weather is starting to warm up for summer. It might be busy, but there’s something for everyone to enjoy in London. The weather is pleasant, and the parks look lush and colorful. Additionally, during this time, you can explore art and culture in the evenings as many museums host special nighttime events.

 

On March 17, celebrate St. Patrick’s Day in Trafalgar Square. London has a sizable Irish community, so you can expect lively festivities, especially in the city’s Irish pubs.

 

In April, you can catch the beautiful cherry blossoms in various parks like Greenwich Park, Regent’s Park, Kensington Gardens, and the Kyoto Garden in Holland Park. Some start blooming as early as March.


If you’re in London in May, don’t miss the Chelsea Flower Show. It’s a famous event where you can dress up, enjoy champagne, and admire stunning floral displays and art at the Royal Hospital in Chelsea.

If you’re looking for a budget-friendly place to fly into London, Barking and Dagenham is a great option. Even though it’s more affordable, you can still easily get to the center of London using the District Line. Plus, it has a lot of interesting things to do and a rich cultural history. So, if you want to experience life in London without spending too much money, Barking and Dagenham is a good choice.

There are direct flights to London from the USA. Visitors can find nonstop flights from the USA to various cities across London. The airlines offering direct flights to London from the USA include British Airways, American Airlines, Delta, Virgin Atlantic, JetBlue, and United Airlines.

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