Cheap flights from London Heathrow Airport to the United States from $253
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 Heathrow Airport to the United States departing on 3/25. 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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Cheap round-trip flights
These are some of the best round-trip flight deals from London Heathrow Airport to the United States that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from London Heathrow Airport to the United States.
Cheap last minute flights
Planning a quick getaway from London Heathrow Airport to the United States? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to the United States, so you can enjoy a seamless trip without layovers.
Finnair flights from London Heathrow Airport to United States
Our best Finnair deals on London Heathrow Airport to United States flight tickets
Finnair![Finnair]()
Mar 4![Finnair]()
Mar 11
LHR4:55 pmLondon Heathrow
11h 20m
LAX8:15 pmLos Angeles
LAX6:20 pmLos Angeles
10h 40m
LHR12:00 pmLondon Heathrow
Finnair![Finnair]()
Mar 10![Finnair]()
Mar 25
LHR3:20 pmLondon Heathrow
11h 25m
SFO7:45 pmSan Francisco
SFO6:30 pmSan Francisco
10h 30m
LHR12:00 pmLondon Heathrow
British Airways flights from London Heathrow Airport to United States
Our best British Airways deals on London Heathrow Airport to United States flight tickets
British Airways![British Airways]()
Mar 26![British Airways]()
Apr 13
LHR11:45 amLondon Heathrow
11h 15m
SFO4:00 pmSan Francisco
SFO2:45 pmSan Francisco
13h 30m
1 stop
LHR12:15 pmLondon Heathrow
British Airways![British Airways]()
Mar 10![British Airways]()
Mar 25
LHR3:20 pmLondon Heathrow
11h 25m
SFO7:45 pmSan Francisco
SFO9:40 pmSan Francisco
10h 35m
LHR3:15 pmLondon Heathrow
See travel insights to the United States from
How to get the cheapest flight ticket from London Heathrow Airport to United States
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 United States?
In general, November is the cheapest month to fly from London Heathrow Airport to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $520. If you aren’t able to travel during the month of November, then book flights to United States from London Heathrow Airport during February instead. Flights to United States in February, while not as cheap as those in November, still average around $524.
What is the cheapest day to depart on your flight to United States?
According to our data, Wednesday is the cheapest day to fly to United States from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was $639. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $767. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.
What is the cheapest time of day to depart on your flight to United States?
The cheapest time of day to fly to United States is at noon when flights can be purchased for as low as $655. Try not to purchase tickets in the evening because they tend to be around $732. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest London Heathrow to United States flight route?
Fly from London Heathrow to Newark for the best London Heathrow - United States flight prices
How far in advance should I book a flight to United States?
You are more likely to see cheaper flights to United States from London Heathrow Airport when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to United States for around $613 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from London Heathrow Airport for as low as $552 on momondo.
What cabin class options are available on London Heathrow to United States flights?
There are 4 cabin classes available to choose from on London Heathrow to United States 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 London Heathrow to United States?
Vueling, Air Canada, and WestJet are the most popular carriers operating from London Heathrow to United States
What airlines fly to United States?
British Airways, American Airlines and Delta are the top three most popular airlines that fly to United States from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 18 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to United States on average per day?
As of February 2025, there are 346 flights per day flying from London Heathrow Airport to United States. The most common time of day flights depart is 4:00PM, with 52% of flights taking off in the afternoon.
How many flights depart from London Heathrow Airport to United States on average per week?
As of February 2025, there are 2,428 flights per week flying from London Heathrow Airport to United States. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.
Cheap London Heathrow Airport to United States flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to United States
Best Price Found | $253 |
|---|---|
Fastest flight time | 7h 10m |
Direct flights | Every day |
Airports in United States | 9 airports |
When did momondo last update prices for flights from London Heathrow Airport to United States?
Prices for flights from London Heathrow Airport to United States refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to United States?
As of February 2025, there are 18 operators available to choose from for flights from London Heathrow Airport to United States.
How old do you have to be to fly from London Heathrow Airport to United States?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to United States.
What documentation or ID do you need to fly to United States?
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.
What is the most popular plane model from London Heathrow Airport to United States?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to United States is Airbus A350-1000, representing 15.68% of all bookings. The subsequent popular models are Boeing 777 at 15.67%, Boeing 787-9 Dreamliner at 14.27%, and Boeing 777-200/200ER at 10.41%.
Best airlines flying from London Heathrow Airport to United States
Compare and see reviews for airlines that fly from London Heathrow Airport to United States with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $324 | Free Cancellation | Rating 7.0 43 reviews | |||
| PriceFrom $355 | Free Cancellation | Rating 7.6 1,273 reviews | |||
| PriceFrom $378 | Free Cancellation | Rating 7.3 1,325 reviews | |||
| PriceFrom $411 | Free Cancellation | Rating 7.1 1,847 reviews | |||
| PriceFrom $454 | Free Cancellation | Rating 7.0 491 reviews | |||
| PriceFrom $458 | Free Cancellation | Rating 7.4 1,449 reviews | |||
| PriceFrom $475 | Free Cancellation | Rating 6.6 6,763 reviews | |||
| PriceFrom $478 | Free Cancellation | Rating 7.5 654 reviews | |||
| PriceFrom $480 | Free Cancellation | Rating 8.0 8,220 reviews | |||
| PriceFrom $481 | Free Cancellation | Rating 7.0 2,639 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to United States?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to United States. momondo saves you time and could save you money on your trip.
Can I find flights from London to United States with flexible booking policies on momondo?
All flight searches from London to United States on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to United States?
momondo provides multiple filters to help you find the best flight to United States from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to United States right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to United States flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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