What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $173. TAP AIR PORTUGAL flights start at $178 while deals on Iberia start at $202 one-way.

What is the cheapest month to book a flight from USA to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of $661). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of $1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Weekly flight availability from USA to London Heathrow Airport

The most flights from US0 to LHR are scheduled on a Monday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular routes from USA to London Heathrow Airport?

Most travelers choose New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or Los Angeles - London Heathrow when deciding on the best route from USA to London Heathrow Airport.

What are the cheapest flights from USA to London Heathrow Airport?

The cheapest flight price from USA to London Heathrow Airport is $397. On average you can expect to pay $3,404. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $387.

What are the most reliable airlines from USA to London Heathrow Airport?

The top 3 most reliable airlines when flying from USA to London Heathrow Airport are Air Canada (85%), Austrian Airlines (85%) and United Airlines (85%).

What are the most popular airlines that fly from USA to London Heathrow Airport?

Before booking your flight from USA to London Heathrow Airport check out the most popular airlines for this route: American Airlines, Air Canada or Alaska Airlines.

How far in advance should I book a flight from USA to London Heathrow Airport?

Find a great deal and save up to 26% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from USA to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $638.

What is the cheapest month to fly from USA to London Heathrow Airport?

Our data shows that January tends to be the cheapest month to fly to London Heathrow Airport from USA. Users have commonly found prices around $564 for the month, but tickets can be as low as $375. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from US to LHR?

When flying from USA to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from USA to Heathrow that include hotel bookings?

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

How can I find direct flights from USA to Heathrow?

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

Can I find deals for business class flights from USA to Heathrow?

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

$412+ Flights from the United States to London Heathrow Airport

Round-trip from	$491 (flugladen.de)
One-way from	$173 (Gotogate)
Popular in	June
Cheapest in	January
Average price	$630
Good round-trip deal	$543 or less
Good one-way deal	$351 or less

Virgin Atlantic's Upper Class offers lie-flat beds, lounge access, and a four-course meal on long-haul flights.

Virgin Atlantic's Premium cabin offers cushy leather seats, priority boarding, and hot meals on long-haul flights.

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest$203	Average$609	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$266	Average$763	FlexibilityNo cancel fee	On-time76%
WestJet	Cheapest$272	Average$933	FlexibilityNo cancel fee	On-time60%
Norse Atlantic UK	Cheapest$284	Average$573	FlexibilityNo cancel fee	On-timeN/A
Brussels Airlines	Cheapest$288	Average$866	FlexibilityNo cancel fee	On-timeN/A
SWISS	Cheapest$290	Average$624	FlexibilityNo cancel fee	On-time79%
Virgin Atlantic	Cheapest$322	Average$770	FlexibilityNo cancel fee	On-time72%
Air France	Cheapest$340	Average$671	FlexibilityNo cancel fee	On-time77%
PLAY	Cheapest$363	Average$464	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$366	Average$731	FlexibilityNo cancel fee	On-time75%

$173+ Cheap flights from the United States to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from USA to Heathrow

Keep the following information in mind while searching for USA to Heathrow flight deals. Data was last updated July 1, 2025.

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Find flight deals from USA to Heathrow

Cheapest flights from USA to HeathrowExplore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Explore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

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Use the filters below to find and compare flights from the United States to London Heathrow Airport that are best for you.

The best insider tips for theUnited States to London Heathrow Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to London Heathrow Airport trip

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Best time to book a flight from USA to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from USA with our price prediction graph.

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Everything you need to know about your flight from the United States to London Heathrow Airport

What is the cheapest month to book a flight from USA to London Heathrow Airport?

What is the cheapest time of day to fly from US to LHR?

Find hourly flight availability from USA to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

Weekly flight availability from USA to London Heathrow Airport

Explore weekly flight availability from USA to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 1, 2025.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, KLM, and Austrian Airlines from the United States to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from USA to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?

What are the most popular routes from USA to London Heathrow Airport?

What are the most reliable airlines from USA to London Heathrow Airport?

What are the cheapest flights from USA to London Heathrow Airport?

Can I find deals for flights from USA to Heathrow that include hotel bookings?

How can I find direct flights from USA to Heathrow?

Can I find deals for business class flights from USA to Heathrow?

What is the cheapest month to book a flight from USA to London Heathrow Airport?

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Cheapest flights from USA to Heathrow
Explore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.