Question 1

Why should I use momondo to find a flight deal to London?

Accepted Answer

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London.

Question 2

Can I find flights to London with flexible booking policies on momondo?

Accepted Answer

Flights to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

Question 3

How can momondo help me find flights to London?

Accepted Answer

momondo helps you find the best flight to London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

Question 4

I’m not ready to book a flight to London right now. Can momondo alert me if prices change?

Accepted Answer

Of course. momondo tracks the price of London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

Question 5

How far in advance should I book a flight to London?

Accepted Answer

Most flyers found that booking tickets 66 days in advance of their planned departure date is the best time to get cheap flights to London. During this timeframe, flight prices are around $662. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $559.

Question 6

Is there an alternative airport near London?

Accepted Answer

Finding an alternative and possibly cheaper destination airport near London is possible. If you are planning a flight to London, consider booking flights to London City Airport (8 mi from London city center), London Gatwick Airport (24 mi from London city center), London Luton Airport (28 mi from London city center), London Stansted Airport (31 mi from London city center) or London Southend Airport (36 mi from London city center).

Question 7

Is there a cheaper alternative to flying into London?

Accepted Answer

With an average price of $157 per person, London Stansted Airport is the cheapest airport to fly into when planning your trip to London. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

Question 8

Are there flights to Lewisham?

Accepted Answer

Yes, if you fly to London Heathrow in London which is the closest available airport to Lewisham (19.0 mi away).

Question 9

What’s the closest airport to Paddington Station?

Accepted Answer

The airport which is nearest to Paddington Station is London Heathrow. It is 12.4 mi away and is in London.

Question 10

Which airlines fly to London?

Accepted Answer

For flights from United States to London, most momondo users will book with popular airlines such as British Airways, United Airlines, American Airlines and Virgin Atlantic. Depending on what airport you fly from, you may have other airlines to choose from.

Question 11

Alaska Airlines Flights to London

Accepted Answer

The most popular airline for flights to London on momondo is Alaska Airlines, which operates 70 flights in this direction every week. Most depart out of New York John F Kennedy Intl, with the best deal for Alaska Airlines flights to London being $495 (round-trip, New York John F Kennedy Intl to London, momondo searches within the last 72 hours). In 12,794 Alaska Airlines reviews, it is rated 7.9 by momondo users.

Question 12

KLM Flights to London

Accepted Answer

KLM (7.8/10, 1,556 reviews) is also a popular choice for flights to London, with deals from as low as $493 from Atlanta Hartsfield-Jackson, round-trip. With 51 KLM flights to London on average each week, prices can vary significantly by origin and availability.

Question 13

When did momondo last update prices for flights to London?

Accepted Answer

Prices for flights to London refresh daily.

Question 14

How many operators does momondo search for flights to London?

Accepted Answer

As of August 2026, there are 96 operators available to choose from for flights to London.

Question 15

How old do you have to be to fly to London?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to London.

Question 16

What documentation or ID do you need to fly to London?

Accepted Answer

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Question 17

What is the cheapest time of day to depart on your flight to London?

Accepted Answer

Flying to London from United States in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $723 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $782. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Question 18

What is the cheapest day to depart on your flight to London?

Accepted Answer

The cheapest day to depart from United States to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $733. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $778. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Question 19

How long does it take to fly to London?

Accepted Answer

If you’re flying from a popular airport in United States, such as Los Angeles or San Francisco, and flying into London, then you can expect flight times to average 10h 25m and 10h 15m, respectively.

Question 20

What is the cheapest month to fly to London?

Accepted Answer

The cheapest month to fly to London from United States is in September. Flight prices, which tend to average around $522, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from United States averaging around $523.

Question 21

How far in advance should I book a flight to London?

Accepted Answer

You are more likely to see cheaper flights to London from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $677 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from United States for as low as $656 on momondo.

Question 22

What is the absolute cheapest flight to London?

Accepted Answer

The best deal found on momondo in the last two weeks was a flight to London from Tirana for $20. This is 93% cheaper than most flight deals to London. To find the cheapest price to London from your area, use momondo’s Airport-to-Airport Pricing Tool.

CHEAPEST MONTH TO FLY TO LONDON FROM LOS ANGELES	September	25% cheaper	Flying from Los Angeles to London costs on average just $631 in September
MOST EXPENSIVE MONTH TO FLY TO LONDON FROM LOS ANGELES	June	37% more expensive	It costs about $1,147 for flights to London from Los Angeles in June
MOST POPULAR MONTH TO FLY TO LONDON FROM LOS ANGELES	June	520% more users visited	More momondo users searched in flights to London from Los Angeles in June than any other month

Best One-Way Price	$188
Best Round-Trip Price	$529
Fastest flight time	7h 00m
Popular in	June

$188 Cheap flights to London

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to London departing on 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United States to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Recent direct flight deals from the United States to London

momondo Fare Finder

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

See travel insights to London from

London flights insights and trends

What is the cheapest month to fly to London?

What is the absolute cheapest flight to London?

See prices from:

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

How far in advance should I book a flight to London?

How long does it take to fly to London?

Cheapest flights to London

Find the cheapest flights to London from your nearest city or airport

Cheap London flight deals and tips

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to London

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular flights to London

Popular routes according to searches in the past day on momondo

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Complete your trip to London

Explore popular destinations other users love

According to popular flight searches on momondo this year