Cheap flights from London to the United States from £143

Yes, there are multiple flights from London to USA for under £300. The cheapest flight booked recently is on Multiple Airlines for just £265, but on average you can expect to pay £284.

Cheapflights has at least 20 direct flights from London to USA under £300. A good price for a nonstop flight from London to USA is less than £306.

There are currently 20+ open flights from London to USA within the next 7 days for less than £400.

The most popular route from London to USA is London Heathrow - Newark. You may also consider London Heathrow - New York John F Kennedy Intl or London Gatwick - New York John F Kennedy Intl.

American Airlines, Air Canada and Air France are the most popular airlines when flying from London to USA.

Consider United Airlines (93%), Lufthansa (93%) or Air New Zealand (92%) when booking your flight. These represent the most reliable airlines when flying from London to USA.

While on average a flight from London to USA is generally £3,534, our data shows the cheapest flight currently is £464. When looking at the most popular route, (London Heathrow - Newark), you can expect to pay £307 for that flight.

This is defined as London Heathrow Airport (LHR) and Los Angeles Airport (LAX). Codes like Los Angeles Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are San Francisco Airport (SFO), Miami Airport (MIA), New York John F Kennedy Intl Airport (JFK), Boston Logan Intl Airport (BOS), Atlanta Hartsfield-Jackson Airport (ATL).

The amount of baggage you can bring on your London to USA flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter London to USA flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on London to USA flights, Cheapflights offers holiday packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to USA.

Yes. Cheapflights offers flight deals from London to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from London to USA offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on London to USA flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The London to USA flight deals you see on this page were last updated on 8/5.

To do your part when it comes to eco-friendly air travel, we recommend booking a slightly more expensive direct ticket from the Cheapflights website. The journey will take approximately 11 hours when booking a direct flight to USA from London; you will be able to book with either Finnair or Virgin Active. Several other airlines offer one-stop flights, which will be more cost-effective but increase your carbon footprint drastically. Finnair is doing its part to reduce its carbon emissions by 50% in the next coming years. They have swapped out their fleet of crafts to the "green" aircraft - the A350, which puts out at least 25% fewer emissions.

When booking your flight keep a few things in mind to be a contributor to more sustainable travel. Firstly, make sure you are on time to catch your flight. If the pilot is forced to catch up the time he will be burning weight of extra fuel per minute. Make sure you pack light. Reducing the weight of your bag reduces your carbon footprint by 5%. Pre-book your meal directly with the airline. This will allow the airline to prepare and store only the meals needed for the flight, without having excess options that result in food waste. You can also bring your own recycled water bottle and ask for it to be refilled to avoid buying pre-bottled water on board.