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Flights to London Heathrow

$225 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 4/21. 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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0 bags

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Find the cheapest flights from the United States to London Heathrow Airport

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
10:05 pm - 10:00 pm
JFK
-
LHR
18h 55m
1 stop
TAP AIR PORTUGAL Logo
6:00 am - 8:05 pm
LHR
-
JFK
19h 05m
1 stop
$489TAP AIR PORTUGAL
Mon, May 4 - Wed, May 20
TAP AIR PORTUGAL Logo
10:05 pm - 10:00 pm
JFK
-
LHR
18h 55m
1 stop
TAP AIR PORTUGAL Logo
6:00 am - 8:05 pm
LHR
-
JFK
19h 05m
1 stop
$490TAP AIR PORTUGAL
Mon, Apr 20 - Mon, May 4
TAP AIR PORTUGAL Logo
10:05 pm - 10:55 pm
JFK
-
LHR
19h 50m
1 stop
TAP AIR PORTUGAL Logo
11:20 am - 8:05 pm
LHR
-
JFK
13h 45m
1 stop
$492TAP AIR PORTUGAL
Mon, May 4 - Sun, May 10
Scandinavian Airlines Logo
5:45 pm - 6:50 pm
EWR
-
LHR
20h 05m
1 stop
Scandinavian Airlines Logo
6:05 pm - 1:15 pm
LHR
-
EWR
24h 10m
1 stop
$511Scandinavian Airlines
Sat, May 23 - Mon, May 25
Scandinavian Airlines Logo
5:45 pm - 2:35 pm
EWR
-
LHR
15h 50m
1 stop
Scandinavian Airlines Logo
6:40 am - 1:15 pm
LHR
-
EWR
11h 35m
1 stop
$513Scandinavian Airlines
Fri, Apr 24 - Sun, Apr 26
Air Canada Logo
11:35 am - 6:35 am
LGA
-
LHR
14h 00m
1 stop
Air Canada Logo
9:30 am - 4:58 pm
LHR
-
LGA
12h 28m
1 stop
$518Air Canada
Sat, May 2 - Sun, May 10
Icelandair Logo
8:50 pm - 11:55 am
BOS
-
LHR
10h 05m
1 stop
Icelandair Logo
9:25 pm - 9:45 pm
LHR
-
BOS
29h 20m
1 stop
$525Icelandair
Fri, Apr 17 - Fri, Apr 24
Air Canada Logo
4:45 pm - 11:50 am
LGA
-
LHR
14h 05m
1 stop
Air Canada Logo
9:30 am - 4:58 pm
LHR
-
LGA
12h 28m
1 stop
$541Air Canada
Sun, May 3 - Sun, May 10
Turkish Airlines Logo
9:30 pm - 10:25 pm
DFW
-
LHR
18h 55m
1 stop
Turkish Airlines Logo
10:40 pm - 7:35 pm
LHR
-
DFW
26h 55m
1 stop
$775Turkish Airlines
Wed, Aug 19 - Wed, Aug 26
Turkish Airlines Logo
2:30 pm - 9:05 pm
DFW
-
LHR
24h 35m
1 stop
Turkish Airlines Logo
6:30 am - 7:35 pm
LHR
-
DFW
19h 05m
1 stop
$776Turkish Airlines
Wed, Apr 15 - Tue, Apr 28

momondo Fare Finder

 
Locate flights to London Heathrow that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on March 23, 2026.
Use the filters below to find and compare flights to London Heathrow Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Wed 5/20

6:00 am-8:05 pm

1 stop19h 05m

$489

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 4/20

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Mon 5/4

6:00 am-8:05 pm

1 stop19h 05m

$490

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:55 pm

1 stop19h 50m

London Heathrow

Sun 5/10

11:20 am-8:05 pm

1 stop13h 45m

$492

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 5/23

5:45 pm-6:50 pm

1 stop20h 05m

London Heathrow

Mon 5/25

6:05 pm-1:15 pm

1 stop24h 10m

$511

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 4/24

5:45 pm-2:35 pm

1 stop15h 50m

London Heathrow

Sun 4/26

6:40 am-1:15 pm

1 stop11h 35m

$513
Quickest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 5/2

11:35 am-6:35 am

1 stop14h 00m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$518

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 4/17

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Fri 4/24

9:25 pm-9:45 pm

1 stop29h 20m

$525

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/3

4:45 pm-11:50 am

1 stop14h 05m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$541

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 8/19

9:30 pm-10:25 pm

1 stop18h 55m

London Heathrow

Wed 8/26

10:40 pm-7:35 pm

1 stop26h 55m

$775

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 4/15

2:30 pm-9:05 pm

1 stop24h 35m

London Heathrow

Tue 4/28

6:30 am-7:35 pm

1 stop19h 05m

$776

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London Heathrow Airport from

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 $638. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $699.

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

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from United States, with most prices found around $529. If you’re not able to fly to London Heathrow Airport in February, then October is your next best option. Flight prices from United States to London Heathrow Airport during October average around $535.

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 in the morning. momondo users have found flights departing from United States to London Heathrow Airport in the morning for as low as $611. 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 evening are often more expensive with an average ticket price of $686.

What is the cheapest United States to London Heathrow flight route?

Fly from Boston Logan Intl 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 $597 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 $577 on momondo.

Cheapest flights to London Heathrow

Find the cheapest flights to London Heathrow from your nearest city or airport
Find flights from Los Angeles to London Heathrow Airport
CHEAPEST MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESSeptember17% cheaperFlying from Los Angeles to London Heathrow Airport costs on average just $637 in September
MOST EXPENSIVE MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESDecember34% more expensiveIt costs about $1,027 for flights to London Heathrow Airport from Los Angeles in December
MOST POPULAR MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESJune318% more users visitedMore momondo users searched in flights to London Heathrow Airport from Los Angeles in June 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

$225

Best Round-Trip Price

$489

Fastest flight time

12h 22m

Popular in

December
The best one-way flight price to London from United States in the last 72 hours is $225 (Boston Logan Intl to London Heathrow).
Search Deals
The best round-trip flight price to London from United States in the last 72 hours is $489 (New York John F Kennedy Intl to London Heathrow).
Search Deals
The fastest flight to London from United States takes 12h 22m (New York LaGuardia to London Heathrow).
Search Deals
December has the highest demand for flights to London, with a 4% price increase on average.
Search Deals

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 February.

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

From most locations, booking your flights to London Heathrow Airport around 47 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 Saturday 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 Morning flights are the most cost-effective. Evening 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 $92 per person, London Southend 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?

$21 is the cheapest deal found on momondo in the last two weeks for a flight to London. This flight is from Málaga and is 91% 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 22 airlines that fly to London Heathrow Airport, British Airways, United Airlines and American Airlines happen to be the most favored based on our user data. British Airways is the most popular among the three airlines, with 47% 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 March 2026, there are 75 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 locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Crawley
Stratford-upon-Avon
Wembley
Hayes
Dartford
Croydon
Harrow
Watford
Brentwood
Guildford
Stansted
Cobham
Folkestone
Romford

Why 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.

An easier way to manage your London Heathrow trip

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Find better results for your trip to London Heathrow Airport LHR

Popular flights to London Heathrow Airport

Popular routes according to searches in the past day on momondo
Flights from New York John F Kennedy Intl to LHRfrom $471
Flights from Los Angeles Los Angeles to LHRfrom $583
Flights from Boston Logan Intl to LHRfrom $502
Flights from San Francisco to LHRfrom $611
Flights from Newark to LHRfrom $496