Cheap flights from the United States to London Heathrow Airport from $81
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to London Heathrow Airport departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
Deals available from 900+ travel sites.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United States to London
Round-trip
One-way
Last minute
Direct
Recent round-trip flight deals from the United States to London
These are some of the best round-trip flight deals from the United States to London that have been recently found on momondo from popular airlines, departing in the coming months.
Recent one-way flight deals from the United States to London
Flying one-way? These are some of the best deals recently discovered on momondo for flights from the United States to London.
Recent last minute flight deals from the United States to London
Planning a quick getaway from the United States to London? These are the last-minute flight deals available now.
Recent direct flight deals from the United States to London
If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.
SWISS flights from United States to London Heathrow Airport
Our best SWISS deals on United States to London Heathrow Airport flight tickets
SWISS![SWISS]()
Mar 21![SWISS]()
Mar 28
JFK10:00 pmNew York John F Kennedy Intl
11h 00m
1 stop
LHR1:00 pmLondon Heathrow
LHR6:00 amLondon Heathrow
12h 05m
1 stop
JFK2:05 pmNew York John F Kennedy Intl
SWISS![SWISS]()
Apr 4![SWISS]()
Apr 28
JFK4:15 pmNew York John F Kennedy Intl
10h 40m
1 stop
LHR7:55 amLondon Heathrow
LHR8:40 amLondon Heathrow
12h 55m
1 stop
JFK4:35 pmNew York John F Kennedy Intl
United Airlines flights from United States to London Heathrow Airport
Our best United Airlines deals on United States to London Heathrow Airport flight tickets
United Airlines![United Airlines]()
Mar 28![United Airlines]()
Mar 30
JFK10:05 amNew York John F Kennedy Intl
17h 05m
1 stop
LHR7:10 amLondon Heathrow
LHR6:50 amLondon Heathrow
11h 10m
1 stop
JFK1:00 pmNew York John F Kennedy Intl
United Airlines![United Airlines]()
Mar 28![United Airlines]()
Mar 30
JFK10:05 amNew York John F Kennedy Intl
17h 05m
1 stop
LHR7:10 amLondon Heathrow
LHR6:50 amLondon Heathrow
11h 10m
1 stop
JFK1:00 pmNew York John F Kennedy Intl
See travel insights to London from
How to get the cheapest flight ticket from United States to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to London Heathrow Airport?
The month of October is, on average, the cheapest month to fly to London Heathrow Airport from United States, with most prices found around $531. If you’re not able to fly to London Heathrow Airport in October, then January is your next best option. Flight prices from United States to London Heathrow Airport during January average around $568.
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 $659. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $691.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from United States to London Heathrow Airport at noon for as low as $586. 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 afternoon are often more expensive with an average ticket price of $722.
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?
You are more likely to see cheaper flights to London Heathrow Airport from United States when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $624 when searching 18 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 $586 on momondo.
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.
What is the cheapest airline that flies from United States to London Heathrow?
Air Canada, Virgin Atlantic, and Brussels Airlines are the most popular carriers operating from United States to London Heathrow
What airlines fly to London Heathrow Airport?
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 38% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 24 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from United States to London Heathrow Airport on average per day?
As of February 2025, there are 327 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 8:00PM, with 69% of flights taking off in the evening.
How many flights depart from United States to London Heathrow Airport on average per week?
2,295 flights are operational weekly from United States to London Heathrow Airport as of February 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.
Cheap United States to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United States to London Heathrow Airport
When did momondo last update prices for flights from United States to London Heathrow Airport?
Prices for flights from United States to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from United States to London Heathrow Airport?
As of February 2025, there are 24 operators available to choose from for flights from United States to London Heathrow Airport.
How old do you have to be to fly from United States to London Heathrow Airport?
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.
What documentation or ID do you need to fly to London Heathrow Airport?
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.
What is the most popular plane model from United States to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from United States to London Heathrow Airport is Boeing 777, representing 20.69% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 10.87%, Airbus A380-800 at 9.26%, and Airbus A350-1000 at 9.24%.
Best airlines flying from United States to London Heathrow Airport
Compare and see reviews for airlines that fly from United States to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $203 | Free Cancellation | Rating 7.3 1,325 reviews | |||
| PriceFrom $269 | Free Cancellation | Rating 7.2 2,801 reviews | |||
| PriceFrom $280 | Free Cancellation | Rating 7.0 43 reviews | |||
| PriceFrom $290 | Free Cancellation | Rating 7.5 1,568 reviews | |||
| PriceFrom $291 | Free Cancellation | Rating 6.7 6,986 reviews | |||
| PriceFrom $315 | Free Cancellation | Rating 7.3 341 reviews | |||
| PriceFrom $326 | Free Cancellation | Rating 7.1 92 reviews | |||
| PriceFrom $340 | Free Cancellation | Rating 7.4 1,449 reviews | |||
| PriceFrom $366 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom $391 | Free Cancellation | Rating 7.4 3,070 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsHounslow
Gatwick
Croydon
Luton
Slough
Guildford
Ipswich
Hayes
Stansted
Ilford
Canterbury
Dover
Salisbury
Swindon
Milton Keynes
Dartford
Horley
Colchester
Wembley
Poole
Why use momondo?
Why should I use momondo to find a flight deal from United States to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to London. momondo saves you time and could save you money on your trip.
Can I find flights from United States to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for United States to London flights to just show those with flexible booking policies.
How can momondo help me find flights from United States to London?
momondo helps you find the best flight between United States and 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.
I’m not ready to book a flight from United States to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of United States to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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 cities in the United Kingdom
Popular flights according to clicks in the last 7 days on momondo
Flights to London Gatwick Airportfrom $354
Flights to London City Airportfrom $428
Flights to London Stansted Airportfrom $367
Flights to London Luton Airportfrom $359
Flights to Belfast Intl Airportfrom $478
Flights to Glasgow Intl Airportfrom $429
Flights to Belfast City Airportfrom $556
Flights to London Southend Airportfrom $498