Cheap flights from Pennsylvania to London from $274

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to London departing on 10/12. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Pennsylvania to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
8:55 pm - 9:10 am
JFK
-
LHR
7h 15mnonstop
British Airways Logo
5:25 pm - 8:20 pm
LHR
-
JFK
7h 55mnonstop
$611British Airways
Fri, Oct 16 - Tue, Oct 20
Scandinavian Airlines Logo
6:55 pm - 4:00 pm
JFK
-
LHR
16h 05m
1 stop
Scandinavian Airlines Logo
6:40 am - 5:00 pm
LHR
-
JFK
15h 20m
2 stops
$612Scandinavian Airlines
Fri, Oct 2 - Sun, Oct 4
Scandinavian Airlines Logo
5:10 pm - 9:35 am
JFK
-
LHR
11h 25m
1 stop
Scandinavian Airlines Logo
6:40 am - 5:00 pm
LHR
-
JFK
15h 20m
2 stops
$616Scandinavian Airlines
Fri, Sep 18 - Sun, Sep 20
LEVEL Logo
11:25 pm - 9:10 am
JFK
-
LHR
28h 45m
1 stop
LEVEL Logo
9:55 am - 9:40 pm
LHR
-
JFK
16h 45m
1 stop
$625LEVEL
Tue, Oct 6 - Thu, Oct 15
Icelandair Logo
8:30 pm - 11:55 am
JFK
-
LHR
10h 25m
1 stop
Icelandair Logo
9:25 pm - 7:20 pm
LHR
-
JFK
26h 55m
1 stop
$631Icelandair
Sun, Aug 30 - Sun, Sep 27
Icelandair Logo
8:30 pm - 11:55 am
JFK
-
LHR
10h 25m
1 stop
Icelandair Logo
1:05 pm - 10:05 pm
LHR
-
JFK
14h 00m
1 stop
$635Icelandair
Wed, Oct 7 - Tue, Oct 13
Air Canada Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
2:05 pm - 7:36 pm
LHR
-
LGA
10h 31m
1 stop
$709Air Canada
Tue, Sep 1 - Tue, Sep 8
Air Canada Logo
5:40 pm - 10:00 am
LGA
-
LHR
11h 20m
1 stop
Air Canada Logo
2:05 pm - 7:36 pm
LHR
-
LGA
10h 31m
1 stop
$724Air Canada
Wed, Aug 5 - Sun, Sep 13
United Airlines Logo
8:30 pm - 8:30 am
MDT
-
LHR
31h 00m
1 stop
United Airlines Logo
6:50 am - 12:40 am
LHR
-
MDT
22h 50m
2 stops
$765United Airlines
Sun, Sep 13 - Wed, Sep 16
United Airlines Logo
10:30 am - 6:55 am
MDT
-
LHR
15h 25m
1 stop
United Airlines Logo
6:50 am - 6:35 pm
LHR
-
MDT
16h 45m
2 stops
$889United Airlines
Wed, Aug 26 - Tue, Sep 8

Scandinavian Airlines flights from Pennsylvania to London Heathrow Airport

Our best Scandinavian Airlines deals on Pennsylvania to London Heathrow Airport flight tickets
Scandinavian Airlines
Oct 2
JFK6:55 pmNew York John F Kennedy Intl
16h 05m
1 stop
LHR4:00 pmLondon Heathrow
Oct 4
LHR6:40 amLondon Heathrow
15h 20m
2 stops
JFK5:00 pmNew York John F Kennedy Intl
$612
Scandinavian Airlines
Sep 18
JFK5:10 pmNew York John F Kennedy Intl
11h 25m
1 stop
LHR9:35 amLondon Heathrow
Sep 20
LHR6:40 amLondon Heathrow
15h 20m
2 stops
JFK5:00 pmNew York John F Kennedy Intl
$616
Scandinavian Airlines
Oct 2
JFK6:55 pmNew York John F Kennedy Intl
13h 40m
1 stop
LHR1:35 pmLondon Heathrow
Oct 4
LHR6:40 amLondon Heathrow
15h 20m
2 stops
JFK5:00 pmNew York John F Kennedy Intl
$622

Virgin Atlantic flights from Pennsylvania to London Heathrow Airport

Our best Virgin Atlantic deals on Pennsylvania to London Heathrow Airport flight tickets
Virgin Atlantic
Sep 8
JFK6:00 pmNew York John F Kennedy Intl
7h 20m
LHR6:20 amLondon Heathrow
Sep 26
LHR8:40 amLondon Heathrow
10h 55m
1 stop
JFK2:35 pmNew York John F Kennedy Intl
$666
Virgin Atlantic
May 7
JFK7:00 pmNew York John F Kennedy Intl
7h 15m
LHR7:15 amLondon Heathrow
May 14
LHR3:00 pmLondon Heathrow
12h 40m
1 stop
JFK10:40 pmNew York John F Kennedy Intl
$667
Virgin Atlantic
Sep 18
JFK10:00 pmNew York John F Kennedy Intl
7h 20m
LHR10:20 amLondon Heathrow
Oct 10
LHR6:35 pmLondon Heathrow
8h 15m
JFK9:50 pmNew York John F Kennedy Intl
$668

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 5, 2026.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 10/16

8:55 pm-9:10 am

Nonstop7h 15m

London Heathrow

Tue 10/20

5:25 pm-8:20 pm

Nonstop7h 55m

$611

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 10/2

6:55 pm-4:00 pm

1 stop16h 05m

London Heathrow

Sun 10/4

6:40 am-5:00 pm

2 stops15h 20m

$612

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 9/18

5:10 pm-9:35 am

1 stop11h 25m

London Heathrow

Sun 9/20

6:40 am-5:00 pm

2 stops15h 20m

$616

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 10/6

11:25 pm-9:10 am

1 stop28h 45m

London Heathrow

Thu 10/15

9:55 am-9:40 pm

1 stop16h 45m

$625

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 8/30

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Sun 9/27

9:25 pm-7:20 pm

1 stop26h 55m

$631

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 10/7

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Tue 10/13

1:05 pm-10:05 pm

1 stop14h 00m

$635

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 9/1

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Tue 9/8

2:05 pm-7:36 pm

1 stop10h 31m

$709

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 8/5

5:40 pm-10:00 am

1 stop11h 20m

London Heathrow

Sun 9/13

2:05 pm-7:36 pm

1 stop10h 31m

$724

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Sun 9/13

8:30 pm-8:30 am

1 stop31h 00m

London Heathrow

Wed 9/16

6:50 am-12:40 am

2 stops22h 50m

$765

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 8/26

10:30 am-6:55 am

1 stop15h 25m

London Heathrow

Tue 9/8

6:50 am-6:35 pm

2 stops16h 45m

$889

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Pennsylvania to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of August is, on average, the cheapest month to fly to London Heathrow Airport from Pennsylvania, with most prices found around $90. If you’re not able to fly to London Heathrow Airport in August, then May is your next best option. Flight prices from Pennsylvania to London Heathrow Airport during May average around $112.

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 $784. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,053.

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 afternoon. momondo users have found flights departing from Pennsylvania to London Heathrow Airport in the afternoon for as low as $835. 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 $957.

What is the cheapest Pennsylvania to London Heathrow flight route?

Fly from Pittsburgh to London Heathrow for the best Pennsylvania - London Heathrow flight prices

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

You are more likely to see cheaper flights to London Heathrow Airport from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $855 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 Pennsylvania for as low as $712 on momondo.

Can stopping save me money on Pennsylvania to London Heathrow Airport flights?

You could potentially save up to 30% on your flight if you consider stops on a Pennsylvania to London Heathrow Airport flight.

Cheap Pennsylvania to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to London Heathrow Airport

Best Price Found

$402

Fastest flight time

6h 50m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Pennsylvania in the past 72 hours is $402. The best round-trip flight deal from Pennsylvania to London Heathrow Airport found on momondo in the last 72 hours is $1,088.
The fastest flight from Pennsylvania to London Heathrow Airport takes 6h 50m
Direct flights go from Pennsylvania to London Heathrow Airport every day.

Frequently asked questions about flying from Pennsylvania to London Heathrow Airport

  • When did momondo last update prices for flights from Pennsylvania to London Heathrow Airport?

    Prices for flights from Pennsylvania to London Heathrow Airport refresh daily.

  • How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?

  • How old do you have to be to fly from Pennsylvania to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Pennsylvania to London Heathrow Airport?

Best airlines flying from Pennsylvania to London Heathrow Airport

Compare and see reviews for airlines that fly from Pennsylvania to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $219Free CancellationRating
7.9
8,459 reviews
Search Delta flights
JetBluePriceFrom $295Free CancellationRating
7.1
2,978 reviews
Search JetBlue flights
Aer LingusPriceFrom $479Free CancellationRating
7.3
1,543 reviews
Search Aer Lingus flights
IcelandairPriceFrom $485Free CancellationRating
7.0
650 reviews
Search Icelandair flights
British AirwaysPriceFrom $501Free CancellationRating
6.7
7,944 reviews
Search British Airways flights
FinnairPriceFrom $513Free CancellationRating
7.6
1,392 reviews
Search Finnair flights
American AirlinesPriceFrom $515Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
IberiaPriceFrom $572Free CancellationRating
7.0
3,212 reviews
Search Iberia flights
Air CanadaPriceFrom $647Free CancellationRating
7.1
11,000 reviews
Search Air Canada flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Stratford-upon-Avon
Crawley
Slough
Wembley
Stansted
Watford
Croydon
Uxbridge
Brentwood
Dartford
Cobham
Folkestone
Romford
Harrow

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to London?

Finding the right flight to London from Pennsylvania is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Pennsylvania to London with flexible booking policies on momondo?

All flight searches from Pennsylvania to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Pennsylvania to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pennsylvania to London.

I’m not ready to book a flight from Pennsylvania to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Pennsylvania to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/4
Thu 6/11

Find better results for your trip to London