Which airline has the best punctuality record on the United States to London flights?

Over the last year, Qantas Airways have had the lowest number of delays on this route, with no flights being classified as delayed.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

How often are flights from the United States to London delayed?

About 17% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 151 minutes.

What is the most punctual flight time for the United States to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

How long is the flight from USA to London Heathrow Airport?

For as low as $503, United Airlines can have you in London Heathrow Airport from USA in 6h 55m. Airlines will cover a distance of 3440 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $174. Delta flights start at $179 while deals on Iberia start at $201 one-way.

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

Currently, February is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of $352). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of $577). 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.

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

Travelers seeking maximum savings on their USA to London Heathrow Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from USA to London Heathrow Airport

The most flights from US0 to LHR are scheduled on a Monday (52 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (28 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 New York LaGuardia - 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 $321. On average you can expect to pay $3,199. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $392.

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 (90%), Austrian Airlines (90%) and United Airlines (90%).

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: British Airways, United Airlines or Delta.

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

It’s typically best to fly out from USA to London Heathrow Airport at noon. Doing so could potentially save you 7% on the flight price compared to flying in the afternoon, which is usually more expensive.

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.

$156+ Flights from the United States to London Heathrow Airport

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$496 (CrystalTravel)
One-way from	$156 (Mytrip)
Popular in	December
Cheapest in	January
Average price	$596
Good round-trip deal	$529 or less
Good one-way deal	$250 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
JetBlue	Cheapest$51	Average$756	FlexibilityNo cancel fee	On-time62%
Scandinavian Airlines	Cheapest$213	Average$612	FlexibilityNo cancel fee	On-time77%
WestJet	Cheapest$272	Average$1,046	FlexibilityNo cancel fee	On-time60%
SWISS	Cheapest$290	Average$639	FlexibilityNo cancel fee	On-time79%
TAP AIR PORTUGAL	Cheapest$293	Average$574	FlexibilityNo cancel fee	On-timeN/A
Virgin Atlantic	Cheapest$324	Average$770	FlexibilityNo cancel fee	On-time72%
Norse Atlantic UK	Cheapest$363	Average$577	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$382	Average$770	FlexibilityNo cancel fee	On-time67%
KLM	Cheapest$387	Average$807	FlexibilityNo cancel fee	On-time75%
Air France	Cheapest$391	Average$716	FlexibilityNo cancel fee	On-time77%

$156+ 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 12/6. 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 noviembre 26, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 noviembre 26, 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 noviembre 26, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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 noviembre 26, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from USA to Heathrow. Price data was last updated on December 16, 2024.

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 noviembre 26, 2025.

How often are flights from the United States to London delayed?

What is the most punctual flight time for the United States to London flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on the United States to London flights?

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

Airlines

British Airways

United Airlines

Delta

American Airlines

Iberia

Virgin Atlantic

Airports

LHR

Our travel experts

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, United Airlines, and American 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.

How long is the flight from USA to London Heathrow Airport?

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?

Traveling to a place near London Heathrow Airport?

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Alternative routes for USA to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

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 noviembre 26, 2025.