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Flights to London Heathrow

$230 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 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Multiple Airlines Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Multiple Airlines Logo
9:10 pm - 4:55 pm
LHR
-
LGA
24h 45m
2 stops
$717Multiple Airlines
Tue, Aug 11 - Mon, Aug 24
Icelandair Logo
8:30 pm - 8:20 pm
JFK
-
LHR
18h 50m
1 stop
Icelandair Logo
1:05 pm - 10:05 pm
LHR
-
JFK
14h 00m
1 stop
$717Icelandair
Thu, Sep 3 - Sat, Oct 3
SWISS Logo
4:15 pm - 9:45 pm
JFK
-
LHR
24h 30m
1 stop
SWISS Logo
8:05 pm - 2:20 pm
LHR
-
JFK
23h 15m
2 stops
$718SWISS
Mon, Aug 17 - Wed, Aug 19
Virgin Atlantic Logo
6:00 pm - 10:40 am
LGA
-
LHR
11h 40m
1 stop
Virgin Atlantic Logo
6:30 am - 4:30 pm
LHR
-
LGA
15h 00m
2 stops
$725Virgin Atlantic
Fri, Sep 4 - Sun, Sep 6
British Airways Logo
9:30 pm - 9:15 am
BOS
-
LHR
6h 45mnonstop
British Airways Logo
7:10 pm - 9:50 pm
LHR
-
BOS
7h 40mnonstop
$764British Airways
Sun, Nov 1 - Fri, Nov 6
British Airways Logo
5:45 pm - 6:20 am
IAD
-
LHR
7h 35mnonstop
British Airways Logo
4:25 pm - 7:55 pm
LHR
-
IAD
8h 30mnonstop
$845British Airways
Thu, Sep 24 - Sat, Jan 9
United Airlines Logo
6:30 pm - 6:55 am
IAD
-
LHR
7h 25mnonstop
United Airlines Logo
6:50 am - 2:20 pm
LHR
-
IAD
12h 30m
1 stop
$848United Airlines
Sun, Aug 23 - Tue, Sep 1
United Airlines Logo
6:30 pm - 6:55 am
IAD
-
LHR
7h 25mnonstop
United Airlines Logo
6:50 am - 2:20 pm
LHR
-
IAD
12h 30m
1 stop
$850United Airlines
Wed, Aug 12 - Thu, Sep 3
Delta Logo
2:00 pm - 2:00 pm
SFO
-
LHR
16h 00m
1 stop
Delta Logo
12:45 pm - 3:45 pm
LHR
-
SFO
11h 00mnonstop
$914Delta
Thu, Aug 6 - Wed, Aug 19
Delta Logo
5:55 pm - 12:15 pm
SFO
-
LHR
10h 20mnonstop
Delta Logo
6:15 am - 12:50 pm
LHR
-
SFO
14h 35m
1 stop
$917Delta
Fri, Sep 11 - Mon, Sep 21

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 June 20, 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

LGA - LHR

LGALHR

New York LaGuardia

Tue 8/11

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Mon 8/24

9:10 pm-4:55 pm

2 stops24h 45m

$717

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 9/3

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

Sat 10/3

1:05 pm-10:05 pm

1 stop14h 00m

$717

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 8/17

4:15 pm-9:45 pm

1 stop24h 30m

London Heathrow

Wed 8/19

8:05 pm-2:20 pm

2 stops23h 15m

$718

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 9/4

6:00 pm-10:40 am

1 stop11h 40m

London Heathrow

Sun 9/6

6:30 am-4:30 pm

2 stops15h 00m

$725
Quickest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 11/1

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Fri 11/6

7:10 pm-9:50 pm

Nonstop7h 40m

$764

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 9/24

5:45 pm-6:20 am

Nonstop7h 35m

London Heathrow

Sat 1/9

4:25 pm-7:55 pm

Nonstop8h 30m

$845

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 8/23

6:30 pm-6:55 am

Nonstop7h 25m

London Heathrow

Tue 9/1

6:50 am-2:20 pm

1 stop12h 30m

$848

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 8/12

6:30 pm-6:55 am

Nonstop7h 25m

London Heathrow

Thu 9/3

6:50 am-2:20 pm

1 stop12h 30m

$850

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 8/6

2:00 pm-2:00 pm

1 stop16h 00m

London Heathrow

Wed 8/19

12:45 pm-3:45 pm

Nonstop11h 00m

$914

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 9/11

5:55 pm-12:15 pm

Nonstop10h 20m

London Heathrow

Mon 9/21

6:15 am-12:50 pm

1 stop14h 35m

$917

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 Airport flights?

There are 4 cabin classes available to choose from on United States to London Heathrow Airport 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 $688. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $741.

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 $688. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from United States to London Heathrow Airport during January average around $700.

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 $661. 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 $734.

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

Fly from New York John F Kennedy 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 $636 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 $587 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 ANGELESFebruary25% cheaperFlying from Los Angeles to London Heathrow Airport costs on average just $657 in February
MOST EXPENSIVE MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESJune60% more expensiveIt costs about $1,397 for flights to London Heathrow Airport from Los Angeles in June
MOST POPULAR MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESJuly297% more users visitedMore 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

$230

Best Round-Trip Price

$717

Fastest flight time

7h 30m

Popular in

June
The best one-way flight price to London from United States in the last 5 days is $230 (Baltimore/Washington to London Heathrow).
Search Deals
The best round-trip flight price to London from United States in the last 5 days is $717 (New York LaGuardia to London Heathrow).
Search Deals
The fastest flight to London from United States takes 7h 30m (Newark to London Heathrow).
Search Deals
June has the highest demand for flights to London, with a 19% 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 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 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 $140 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?

$18 is the cheapest deal found on momondo in the last two weeks for a flight to London. This flight is from Palma de Mallorca and is 94% 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 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 June 2026, there are 72 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
Hounslow
Gatwick
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Stansted
Stratford-upon-Avon
Harrow
Slough
Brentwood
Watford
Cobham
Guildford
Ilford
Folkestone
Uxbridge

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 $745
Flights from Boston Logan Intl to LHRfrom $732
Flights from Los Angeles to LHRfrom $846
Flights from San Francisco to LHRfrom $863
Flights from Newark to LHRfrom $761