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Flights to London Heathrow

$233 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 7/7. 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
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.
Scandinavian Airlines Logo
5:20 pm - 9:35 am
EWR
-
LHR
35h 15m
2 stops
Scandinavian Airlines Logo
6:40 am - 1:15 pm
LHR
-
EWR
35h 35m
2 stops
$537Scandinavian Airlines
Thu, Oct 15 - Sun, Oct 18
Scandinavian Airlines Logo
5:20 pm - 6:30 pm
EWR
-
LHR
20h 10m
1 stop
Scandinavian Airlines Logo
5:30 pm - 1:15 pm
LHR
-
EWR
24h 45m
1 stop
$546Scandinavian Airlines
Fri, May 8 - Sun, May 10
Scandinavian Airlines Logo
5:20 pm - 9:20 am
EWR
-
LHR
35h 00m
2 stops
Scandinavian Airlines Logo
7:05 am - 1:15 pm
LHR
-
EWR
11h 10m
1 stop
$549Scandinavian Airlines
Fri, Sep 11 - Mon, Sep 14
Air Canada Logo
3:45 pm - 10:00 am
IAD
-
LHR
13h 15m
1 stop
Air Canada Logo
8:30 am - 3:29 pm
LHR
-
IAD
11h 59m
1 stop
$682Air Canada
Thu, May 21 - Thu, Jun 4
Air Canada Logo
3:45 pm - 10:00 am
IAD
-
LHR
13h 15m
1 stop
Air Canada Logo
9:30 am - 6:58 pm
LHR
-
IAD
14h 28m
1 stop
$685Air Canada
Wed, May 20 - Fri, Jun 5
Icelandair Logo
8:30 pm - 8:20 pm
BWI
-
LHR
18h 50m
1 stop
Icelandair Logo
1:05 pm - 10:15 pm
LHR
-
BWI
14h 10m
1 stop
$700Icelandair
Sat, Sep 26 - Tue, Oct 6
Icelandair Logo
8:30 pm - 11:55 am
BWI
-
LHR
10h 25m
1 stop
Icelandair Logo
9:25 pm - 7:25 pm
LHR
-
BWI
27h 00m
1 stop
$705Icelandair
Sun, May 3 - Tue, May 12
Aer Lingus Logo
9:00 pm - 1:55 pm
ORD
-
LHR
10h 55m
1 stop
Aer Lingus Logo
7:40 am - 2:00 pm
LHR
-
ORD
12h 20m
1 stop
$706Aer Lingus
Tue, Jun 9 - Wed, Aug 26
British Airways Logo
9:59 am - 6:20 am
LGA
-
LHR
15h 21m
1 stop
British Airways Logo
8:10 pm - 7:13 am
LHR
-
LGA
16h 03m
1 stop
$718British Airways
Sun, May 10 - Sat, May 16
British Airways Logo
5:05 pm - 11:35 am
LAX
-
LHR
10h 30mnonstop
British Airways Logo
3:05 pm - 6:25 pm
LHR
-
LAX
11h 20mnonstop
$734British Airways
Wed, May 6 - Wed, Oct 14

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 April 18, 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

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 10/15

5:20 pm-9:35 am

2 stops35h 15m

London Heathrow

Sun 10/18

6:40 am-1:15 pm

2 stops35h 35m

$537

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 5/8

5:20 pm-6:30 pm

1 stop20h 10m

London Heathrow

Sun 5/10

5:30 pm-1:15 pm

1 stop24h 45m

$546

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 9/11

5:20 pm-9:20 am

2 stops35h 00m

London Heathrow

Mon 9/14

7:05 am-1:15 pm

1 stop11h 10m

$549

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 5/21

3:45 pm-10:00 am

1 stop13h 15m

London Heathrow

Thu 6/4

8:30 am-3:29 pm

1 stop11h 59m

$682

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 5/20

3:45 pm-10:00 am

1 stop13h 15m

London Heathrow

Fri 6/5

9:30 am-6:58 pm

1 stop14h 28m

$685

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Sat 9/26

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

Tue 10/6

1:05 pm-10:15 pm

1 stop14h 10m

$700

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Sun 5/3

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Tue 5/12

9:25 pm-7:25 pm

1 stop27h 00m

$705

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 6/9

9:00 pm-1:55 pm

1 stop10h 55m

London Heathrow

Wed 8/26

7:40 am-2:00 pm

1 stop12h 20m

$706

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/10

9:59 am-6:20 am

1 stop15h 21m

London Heathrow

Sat 5/16

8:10 pm-7:13 am

1 stop16h 03m

$718
Quickest round-trip

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 5/6

5:05 pm-11:35 am

Nonstop10h 30m

London Heathrow

Wed 10/14

3:05 pm-6:25 pm

Nonstop11h 20m

$734

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 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 $643. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $703.

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 $527. If you’re not able to fly to London Heathrow Airport in October, then February is your next best option. Flight prices from United States to London Heathrow Airport during February average around $529.

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 $619. 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 $692.

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 $606 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 $579 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 ANGELESSeptember18% cheaperFlying from Los Angeles to London Heathrow Airport costs on average just $646 in September
MOST EXPENSIVE MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESDecember33% more expensiveIt costs about $1,044 for flights to London Heathrow Airport from Los Angeles in December
MOST POPULAR MONTH TO FLY TO LONDON HEATHROW AIRPORT FROM LOS ANGELESJune335% 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

$233

Best Round-Trip Price

$537

Fastest flight time

12h 16m

Popular in

December
The best one-way flight price to London from United States in the last 72 hours is $233 (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 $537 (Newark to London Heathrow).
Search Deals
The fastest flight to London from United States takes 12h 16m (New York LaGuardia to London Heathrow).
Search Deals
December has the highest demand for flights to London, with a 3% 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 $99 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 92% 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 April 2026, there are 76 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
Hayes
Slough
Stratford-upon-Avon
Crawley
Wembley
Stansted
Croydon
Dartford
Brentwood
Cobham
Folkestone
Guildford
Romford
Harrow
Watford

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 $593
Flights from Boston Logan Intl to LHRfrom $608
Flights from San Francisco to LHRfrom $719
Flights from Los Angeles Los Angeles to LHRfrom $713
Flights from Washington, D.C. Dulles Intl to LHRfrom $727