Cheap flights from the United States to London from £119
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 departing on 29/7. 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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Delta flights from United States to London Heathrow Airport
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Virgin Atlantic flights from United States to London Heathrow Airport
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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
What is the cheapest month to fly to London Heathrow Airport?
In general, October is the cheapest month to fly from United States to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £406. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from United States averaging around £418.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from United States is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £430. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £474.
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 midday. momondo users have found flights departing from United States to London Heathrow Airport at midday for as low as £411. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £480 on average. Flights to London Heathrow Airport from United States in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest United States to London Heathrow flight route?
Fly from Boston Logan 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 17 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £457 when searching 17 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 £409 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?
Icelandair and TAP AIR PORTUGAL are the most popular carriers operating from United States to London Heathrow
Which airlines fly to London Heathrow Airport?
Virgin Atlantic, British Airways and Iberia are the top three most popular airlines that fly to London Heathrow Airport from United States according to our data. Virgin Atlantic is the first choice among our users, with 48% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 15 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?
The number of flights available between United States and London Heathrow Airport is 412 per day as of June 2025. The most frequent departure time is 20:00, with 69% of daily flights leaving in the evening.
How many flights depart from United States to London Heathrow Airport on average per week?
2,885 flights are operational weekly from United States to London Heathrow Airport as of June 2025. The most popular departure day for this route is Wed, with 15% 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?
There are 16 operators available for flights from United States to London Heathrow Airport as of June 2025.
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 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 United States to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from United States to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United States to London Heathrow Airport is Boeing 777 (21.27% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (14.56%), Boeing 777-200/200ER (12.83%), and Boeing 777-300ER (11.44%).
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 £276 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £280 | Free Cancellation | Rating 7.5 1,466 reviews | |||
| PriceFrom £284 | Free Cancellation | Rating 7.8 1,361 reviews | |||
| PriceFrom £291 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom £292 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom £293 | Free Cancellation | Rating 6.6 7,019 reviews | |||
| PriceFrom £300 | Free Cancellation | Rating 7.6 1,291 reviews | |||
| PriceFrom £300 | Free Cancellation | Rating 7.3 1,388 reviews | |||
| PriceFrom £300 | Free Cancellation | Rating 7.1 9,554 reviews | |||
| PriceFrom £333 | Free Cancellation | Rating 7.4 8,801 reviews |
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy 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?
momondo does allow users to show only those flights to London from United States which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from United States to London?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from United States.
I’m not ready to book a flight from United States to London right now. Can momondo alert me if prices change?
If you are not ready to book a flight from United States to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.