$149 Cheap flights to London Heathrow Airport
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to London Heathrow Airport departing on 7/22. 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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Flights to London Heathrow Airport - Travel Insights & Trends
Get data-powered insights and trends for flights to London Heathrow Airport to help you craft the best travel plan.
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 day to depart on your flight to London Heathrow Airport?
Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $639. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $678.
What is the cheapest month to fly to London Heathrow Airport?
The month of October is, on average, the cheapest month to fly to London Heathrow Airport from United States, with most prices found around $549. If you’re not able to fly to London Heathrow Airport in October, then January is your next best option. Flight prices from United States to London Heathrow Airport during January average around $568.
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 noon. momondo users have found flights departing from United States to London Heathrow Airport at noon for as low as $586. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $701.
What is the cheapest United States to London Heathrow flight route?
Fly from Newark 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 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $619 when searching 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 $553 on momondo.
What is the cheapest airline that flies from United States to London Heathrow?
TAP AIR PORTUGAL and Icelandair are the most popular carriers operating from United States to London Heathrow
What airlines fly to London Heathrow Airport?
British Airways, Delta and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from United States according to our data. British Airways is the first choice among our users, with 43% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 24 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How long does it take to fly to London Heathrow Airport?
On average, it takes 10h 25m to fly from United States to London Heathrow Airport if you fly out of Los Angeles (the most popular airport in United States) and into London Heathrow (the most popular airport in London Heathrow Airport). If you’re flying out of Miami and into London Heathrow, then the flight time is around 8h 25m.
How many flights depart from United States to London Heathrow Airport on average per day?
As of July 2025, there are 362 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 8:00PM, with 68% of flights taking off in the evening.
Cheapest flights to London Heathrow
Find the cheapest flights to London Heathrow from your nearest city or airport
| CHEAPEST MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELES | October | 18% cheaper | Flying from Los Angeles to London Heathrow Airport costs on average just $644 in October |
| MOST EXPENSIVE MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELES | June | 31% more expensive | It costs about $1,030 for flights to London Heathrow Airport from Los Angeles in June |
| MOST POPULAR MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELES | July | 209% more users visited | More momondo users searched in flights to London Heathrow Airport from Los Angeles in July than any other month |
Cheap London Heathrow Airport flight deals and tips
Summary info about London Heathrow Airport flight prices, duration and airlines
Best One-Way Price | $149 |
|---|---|
Best Round-Trip Price | $271 |
Fastest flight time | 10h 05m |
Popular in | June |
Frequently asked questions about flying to London Heathrow Airport
What is the cheapest month to fly to London Heathrow Airport?
Most travelers find the cheapest round-trip airfare to London Heathrow Airport when booking during the month of October.
How far in advance should I book a flight to London Heathrow Airport?
From most locations, booking your flights to London Heathrow Airport around 85 days prior to your departure date finds the best deals.
What is the cheapest day to depart on your flight to London Heathrow Airport?
From most locations, the cheapest day to fly to London Heathrow Airport is Wednesday. Most users found that departing on a Sunday was most expensive.
What is the cheapest time of day to fly to London Heathrow Airport?
In general, when looking for the cheapest flight to London Heathrow Airport, our data indicates that Noon flights are the most cost-effective. Afternoon flights tend to be the most expensive.
Is there an alternative airport near London Heathrow Airport?
Those flying to London Heathrow Airport could potentially find better pricing at London City Airport (8 mi from London city center), London Gatwick Airport (24 mi from London city center), London Luton Airport (28 mi from London city center), London Stansted Airport (31 mi from London city center) or London Southend Airport (36 mi from London city center) depending on the month and departure airport.
Is there a cheaper alternative to flying into London?
With an average price of $133 per person, London Stansted Airport is the cheapest airport to fly into when planning your trip to London. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.
What is the absolute cheapest flight to London?
$19 is the cheapest deal found on momondo in the last two weeks for a flight to London. This flight is from Bremen and is 93% cheaper than most flights to London. To find the cheapest price to London from your area, use momondo’s Airport-to-Airport Pricing Tool.
What airlines fly to London Heathrow Airport?
Of the 23 airlines that fly to London Heathrow Airport, British Airways, United Airlines and Delta happen to be the most favored based on our user data. British Airways is the most popular among the three airlines, with 45% of users choosing them for their travels to London Heathrow Airport.
When did momondo last update prices for flights to London Heathrow Airport?
Prices for flights to London Heathrow Airport refresh daily.
How many operators does momondo search for flights to London Heathrow Airport?
As of July 2025, there are 82 operators available to choose from for flights to London Heathrow Airport.
How old do you have to be to fly to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport 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 London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight to London. momondo saves you time and could save you money on your trip.
Can I find flights to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights to London?
Once you have performed a search for flights to London, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight to London right now. Can momondo alert me if prices change?
If you are not ready to book a flight to London now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to London and let you know when they change.