Question 1

What is the cheapest day to depart on your flight to United States?

Accepted Answer

According to our data, Thursday is the cheapest day to fly to United States from London. The lowest ticket price found for a Thursday departure recently was £470. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to United States for around £540.

Question 2

What is the cheapest airline that flies from London to United States?

Accepted Answer

Norse Atlantic UK, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from London to United States

Question 3

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

Accepted Answer

Our most recent data shows that the best time of day to fly to United States is in the morning. Flights from London to United States during this time can be as low as £487. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £593 on average. Flights to United States from London in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 4

What cabin class options are available on London to United States flights?

Accepted Answer

There are 4 cabin classes available to choose from on London to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 5

Which airline has the best punctuality record on London to the United States flights?

Accepted Answer

According to our data, JetBlue have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

Question 6

How many flights depart from London to United States on average per week?

Accepted Answer

The number of flights available between London and United States is 1,181 per week as of December 2025. The most frequent departure day is Fri, with 15% of weekly flights leaving on this day.

Question 7

How many flights depart from London to United States on average per day?

Accepted Answer

168 flights are operational daily from London to United States as of December 2025. The most popular departure time for this route is 16:00, with 50% of flights per day taking off in the afternoon.

Question 8

How far in advance should I book a flight to United States?

Accepted Answer

You are more likely to see cheaper flights to United States from London when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around £440 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from London for as low as £392 on momondo.

Question 9

What is the cheapest month to fly to United States?

Accepted Answer

The month of September is, on average, the cheapest month to fly to United States from London, with most prices found around £358. If you are unable to visit United States during the month of September, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around £364.

Question 10

How often are flights from London to the United States delayed?

Accepted Answer

Historically, on average around 13% of flights between London and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 156 minutes.

Question 11

Can stopping save me money on London to United States flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between London to United States.

Question 12

What is the cheapest London to United States flight route?

Accepted Answer

Fly from London Gatwick to Orlando for the best London - United States flight prices

Question 13

Which airlines fly to United States?

Accepted Answer

Virgin Atlantic, British Airways and Lufthansa are the top three most popular airlines that fly to United States from London according to our data. Virgin Atlantic is the first choice among our users, with 47% of people opting to fly with this airline when travelling to United States. Keep in mind that there are 27 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Question 14

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 15

What is the most punctual flight time for London to the United States flights?

Accepted Answer

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Question 16

When did momondo last update prices for flights from London to United States?

Accepted Answer

Prices for flights from London to United States are updated daily.

Question 17

How many operators does momondo search for flights from London to United States?

Accepted Answer

As of December 2025, there are 23 operators available to choose from for flights from London to United States.

Question 18

How old do you have to be to fly from London to United States?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to United States.

Question 19

What documentation or ID do you need to fly to United States?

Accepted Answer

The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£255
Fastest flight time	7h 25m
Direct flights	Every day
Airports in United States	4,296 airports

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom £90	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Air Canada	PriceFrom £216	Free Cancellation	Rating 7.1 10,518 reviews	Search Air Canada flights
Delta	PriceFrom £238	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
PLAY	PriceFrom £250	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
TAP AIR PORTUGAL	PriceFrom £279	Free Cancellation	Rating 7.1 2,089 reviews	Search TAP AIR PORTUGAL flights
SWISS	PriceFrom £292	Free Cancellation	Rating 7.5 1,810 reviews	Search SWISS flights
United Airlines	PriceFrom £296	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Icelandair	PriceFrom £297	Free Cancellation	Rating 7.0 589 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom £297	Free Cancellation	Rating 7.4 1,606 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom £304	Free Cancellation	Rating 7.2 1,394 reviews	Search Aer Lingus flights

Cheap flights from London to the United States from £297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to the United States departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from London to United States

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

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

What is the cheapest London to United States flight route?

Fly from London Gatwick to Orlando for the best London - United States flight prices

How far in advance should I book a flight to United States?

What cabin class options are available on London to United States flights?

There are 4 cabin classes available to choose from on London to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to United States flights?

No. A direct flight is the cheapest option for a flight between London to United States.

What is the cheapest airline that flies from London to United States?

Norse Atlantic UK, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from London to United States

Which airlines fly to United States?

How often are flights from London to the United States delayed?

Historically, on average around 13% of flights between London and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 156 minutes.

What is the most punctual flight time for London to the United States flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to the United States flights?

According to our data, JetBlue have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

How many flights depart from London to United States on average per day?

168 flights are operational daily from London to United States as of December 2025. The most popular departure time for this route is 16:00, with 50% of flights per day taking off in the afternoon.

How many flights depart from London to United States on average per week?

The number of flights available between London and United States is 1,181 per week as of December 2025. The most frequent departure day is Fri, with 15% of weekly flights leaving on this day.

Cheap London to United States flight deals and tips

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When did momondo last update prices for flights from London to United States?

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How old do you have to be to fly from London to United States?

What documentation or ID do you need to fly to United States?

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Best airlines flying from London to United States

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