Question 1

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

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport 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 Heathrow Airport from United States for as low as $584 on momondo.

Question 2

How long does it take to fly to London Heathrow Airport?

Accepted Answer

On average, it takes 6h 30m to fly from United States to London Heathrow Airport if you fly out of Boston (the most popular airport in United States) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of New York and into London Heathrow Airport, then the flight time is around 6h 50m.

Question 3

What is the cheapest month to fly to London Heathrow Airport?

Accepted Answer

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from United States, with most prices found around $537. If you’re not able to fly to London Heathrow Airport in October, then September is your next best option. Flight prices from United States to London Heathrow Airport during September average around $542.

Question 4

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

Accepted Answer

As of February 2026, there are 289 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 6:00PM, with 69% of flights taking off in the evening.

Question 5

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

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from United States to London Heathrow Airport in the morning for as low as $615. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $686.

Question 6

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

Accepted Answer

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

Question 7

What airlines fly to London Heathrow Airport?

Accepted Answer

British Airways, United Airlines and Delta are the top three most popular airlines that fly to London Heathrow Airport from United States according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 23 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 8

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

Accepted Answer

Historically, on average around 16% of flights between United States and London have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

Question 9

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

Accepted Answer

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $642. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $700.

Question 10

What is the cheapest United States to London Heathrow flight route?

Accepted Answer

Fly from New York John F Kennedy Intl to London Heathrow for the best United States - London Heathrow flight prices

Question 11

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

Accepted Answer

You could potentially save up to 21% on your flight if you consider stops on a United States to London Heathrow Airport flight.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Question 14

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

Accepted Answer

TAP AIR PORTUGAL, SWISS, and United Airlines are the most popular carriers operating from United States to London Heathrow

Question 15

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

Accepted Answer

2,029 flights are operational weekly from United States to London Heathrow Airport as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

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

Question 18

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

Accepted Answer

As of February 2026, there are 21 operators available to choose from for flights from United States to London Heathrow Airport.

Question 19

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

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 from United States to London Heathrow Airport.

Question 20

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

Accepted Answer

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best Price Found	$243
Fastest flight time	6h 30m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $51	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
Norse Atlantic UK	PriceFrom $129	Free Cancellation	Rating 7.2 51 reviews	Search Norse Atlantic UK flights
SWISS	PriceFrom $293	Free Cancellation	Rating 7.6 1,864 reviews	Search SWISS flights
TAP AIR PORTUGAL	PriceFrom $293	Free Cancellation	Rating 7.1 2,133 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $334	Free Cancellation	Rating 7.3 1,676 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $408	Free Cancellation	Rating 7.2 1,444 reviews	Search Aer Lingus flights
Icelandair	PriceFrom $439	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
Virgin Atlantic	PriceFrom $446	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $456	Free Cancellation	Rating 7.2 11,212 reviews	Search American Airlines flights
Air France	PriceFrom $461	Free Cancellation	Rating 7.4 1,531 reviews	Search Air France flights

Cheap flights from the United States to London from $188

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

What is the cheapest month to fly to London Heathrow Airport?

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $642. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $700.

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

What is the cheapest United States to London Heathrow flight route?

Fly from New York John F Kennedy Intl to London Heathrow for the best United States - London Heathrow flight prices

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

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

There are 4 cabin classes available to choose from on United States to London Heathrow 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 United States to London Heathrow Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a United States to London Heathrow Airport flight.

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

TAP AIR PORTUGAL, SWISS, and United Airlines are the most popular carriers operating from United States to London Heathrow

What airlines fly to London Heathrow Airport?

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

Historically, on average around 16% of flights between United States and London have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights at night 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 which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

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

As of February 2026, there are 289 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 6:00PM, with 69% of flights taking off in the evening.

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

2,029 flights are operational weekly from United States to London Heathrow Airport as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

How long does it take to fly to London Heathrow Airport?

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

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

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

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Best airlines flying from United States to London Heathrow Airport

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