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 30 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 $577. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $532.

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 $147 per person, London Luton 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 Covent Garden?

Accepted Answer

Yes, if you fly to London Heathrow in London which is the closest available airport to Covent Garden (14.5 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 Delta. 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 61 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 $494 (round-trip, New York John F Kennedy Intl to London, momondo searches within the last 72 hours). In 11,633 Alaska Airlines reviews, it is rated 8.0 by momondo users.

Question 12

KLM Flights to London

Accepted Answer

KLM (7.7/10, 1,434 reviews) is also a popular choice for flights to London, with deals from as low as $387 from Atlanta Hartsfield-Jackson, round-trip. With 38 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 January 2026, there are 97 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

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 Miami, and flying into London, then you can expect flight times to average 10h 20m and 8h 30m, respectively.

Question 18

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 $609 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 $574 on momondo.

Question 19

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 Milan for $20. This is 92% 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.

Question 20

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

Accepted Answer

Flying to London from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $615 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $680. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Question 21

What is the cheapest month to fly to London?

Accepted Answer

The cheapest month to fly to London from United States is in January. Flight prices, which tend to average around $437, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from United States averaging around $506.

Question 22

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 $637. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $692. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

CHEAPEST MONTH TO FLY TO LONDON FROM LOS ANGELES	September	18% cheaper	Flying from Los Angeles to London costs on average just $592 in September
MOST EXPENSIVE MONTH TO FLY TO LONDON FROM LOS ANGELES	December	50% more expensive	It costs about $1,076 for flights to London from Los Angeles in December
MOST POPULAR MONTH TO FLY TO LONDON FROM LOS ANGELES	June	426% more users visited	More momondo users searched in flights to London from Los Angeles in June than any other month

Best One-Way Price	$177
Best Round-Trip Price	$494
Fastest flight time	7h 15m
Popular in	December

$177 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 1/31. 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?

The best deal found on momondo in the last two weeks was a flight to London from Milan for $20. This is 92% 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.

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?

If you’re flying from a popular airport in United States, such as Los Angeles or Miami, and flying into London, then you can expect flight times to average 10h 20m and 8h 30m, respectively.

Cheapest flights to London

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

Cheap London flight deals and tips

Summary info about London flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to London

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

Is there an alternative airport near London?

Is there a cheaper alternative to flying into London?

Are there flights to Covent Garden?

What’s the closest airport to Paddington Station?

When did momondo last update prices for flights to London?

How many operators does momondo search for flights to London?

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

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

Traveling to a place near London?

Why use momondo?

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

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

How can momondo help me find flights to London?

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

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