Cheap flights from London to the United States from $175
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 5/24. 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
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 United States?
In general, January is the cheapest month to fly from London to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $449. If you aren’t able to travel during the month of January, then book flights to United States from London during September instead. Flights to United States in September, while not as cheap as those in January, still average around $478.
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. The lowest ticket price found for a Wednesday departure recently was $610. 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 Sunday because tickets tend to average around $737. 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 in the morning when flights can be purchased for as low as $653. Try not to purchase tickets in the evening because they tend to be around $684. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest London to United States flight route?
Fly from London Gatwick to Miami for the best London - 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 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 for as low as $544 on momondo.
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.
What is the cheapest airline that flies from London to United States?
Icelandair, ITA Airways, and Aer Lingus are the most popular carriers operating from London to United States
What airlines fly to United States?
British Airways, Delta and American Airlines are the top three most popular airlines that fly to United States from London according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 19 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 to United States on average per day?
As of April 2025, 228 flights take off from London and land in United States each day. The most common flight departure time for this route is 4:00PM, with 54% of daily flights taking off in the afternoon.
How many flights depart from London to United States on average per week?
As of April 2025, there are 1,599 flights per week flying from London to United States. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.
Cheap London to United States flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to United States
Best Price Found | $175 |
|---|---|
Fastest flight time | 7h 39m |
Direct flights | Every day |
Airports in United States | 3 airports |
When did momondo last update prices for flights from London to United States?
Prices for flights from London to United States were last updated today.
How many operators does momondo search for flights from London to United States?
The number of operators available for flights from London to United States is 19 as of April 2025.
How old do you have to be to fly from London 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 to United States.
What documentation or ID do you need to fly to United States?
The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to United States is Boeing 777 (19.90% of total bookings). The next most popular plane models are Airbus A350-1000 (15.70%), Boeing 787-9 Dreamliner (15.15%), and Boeing 777-200/200ER (8.64%).
Best airlines flying from London to United States
Compare and see reviews for airlines that fly from London to United States with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $332 | Free Cancellation | Rating 7.1 45 reviews | |||
| PriceFrom $341 | Free Cancellation | Rating 7.3 1,349 reviews | |||
| PriceFrom $355 | Free Cancellation | Rating 7.6 1,275 reviews | |||
| PriceFrom $355 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom $360 | Free Cancellation | Rating 7.3 2,924 reviews | |||
| PriceFrom $375 | Free Cancellation | Rating 6.9 101 reviews | |||
| PriceFrom $391 | Free Cancellation | Rating 7.1 1,852 reviews | |||
| PriceFrom $401 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $402 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom $409 | Free Cancellation | Rating 7.3 346 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to United States?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to United States. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from London to United States with flexible booking policies on momondo?
Yes. All flights to United States from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to United States?
momondo helps you find the best flight between London and United States 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 London to United States right now. Can momondo alert me if prices change?
If you are not ready to book a flight from London to United States now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United States and let you know when they change.