Cheap flights from Pennsylvania to London from $180

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 3/23. 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.
Multiple Airlines Logo
8:40 pm - 6:05 pm
JFK
-
LTN
16h 25m
2 stops
Multiple Airlines Logo
12:45 pm - 9:40 pm
LTN
-
JFK
13h 55m
1 stop
$459Multiple Airlines
Mon, Apr 20 - Tue, Apr 28
Icelandair Logo
8:25 pm - 10:50 am
JFK
-
LHR
10h 25m
1 stop
Icelandair Logo
1:05 pm - 10:05 pm
LHR
-
JFK
14h 00m
1 stop
$459Icelandair
Wed, Mar 25 - Thu, Apr 9
Norse Atlantic UK Logo
6:20 pm - 6:20 am
JFK
-
LGW
7h 00mnonstop
Norse Atlantic UK Logo
1:05 pm - 3:55 pm
LGW
-
JFK
7h 50mnonstop
$459Norse Atlantic UK
Fri, Apr 24 - Tue, Apr 28
Norse Atlantic UK Logo
6:20 pm - 6:20 am
JFK
-
LGW
7h 00mnonstop
Norse Atlantic UK Logo
1:05 pm - 3:55 pm
LGW
-
JFK
7h 50mnonstop
$460Norse Atlantic UK
Sun, Apr 19 - Thu, May 14
ITA Airways Logo
9:15 pm - 9:50 pm
JFK
-
LCY
19h 35m
2 stops
ITA Airways Logo
4:45 pm - 2:15 pm
LCY
-
JFK
26h 30m
1 stop
$460ITA Airways
Mon, Feb 23 - Wed, Feb 25
Virgin Atlantic Logo
9:30 pm - 9:20 am
JFK
-
LHR
6h 50mnonstop
Virgin Atlantic Logo
7:20 pm - 12:55 pm
LHR
-
JFK
22h 35m
1 stop
$460Virgin Atlantic
Mon, Mar 2 - Tue, Mar 3
Multiple Airlines Logo
5:25 pm - 8:10 pm
JFK
-
LTN
22h 45m
2 stops
Multiple Airlines Logo
8:50 pm - 3:05 pm
LTN
-
JFK
22h 15m
2 stops
$460Multiple Airlines
Mon, Mar 9 - Wed, Mar 11
ITA Airways Logo
9:15 pm - 9:50 pm
JFK
-
LCY
19h 35m
2 stops
ITA Airways Logo
8:25 am - 6:55 pm
LCY
-
JFK
15h 30m
1 stop
$465ITA Airways
Sat, Feb 28 - Mon, Mar 2
SWISS Logo
4:25 pm - 8:40 am
JFK
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:40 pm
LCY
-
JFK
12h 25m
1 stop
$472SWISS
Mon, Feb 16 - Mon, Mar 2
SWISS Logo
10:00 pm - 4:20 pm
EWR
-
LHR
13h 20m
1 stop
SWISS Logo
12:05 pm - 8:30 pm
LHR
-
EWR
13h 25m
1 stop
$507SWISS
Mon, Feb 16 - Tue, Feb 24

Scandinavian Airlines flights from Pennsylvania to London

Our best Scandinavian Airlines deals on Pennsylvania to London flight tickets
Scandinavian Airlines
Apr 17
JFK5:10 pmNew York John F Kennedy Intl
34h 45m
2 stops
LHR8:55 amLondon Heathrow
Apr 19
LHR7:30 pmLondon Heathrow
25h 10m
2 stops
JFK3:40 pmNew York John F Kennedy Intl
$463
Scandinavian Airlines
Apr 18
JFK5:10 pmNew York John F Kennedy Intl
11h 25m
1 stop
LHR9:35 amLondon Heathrow
Apr 20
LHR6:40 amLondon Heathrow
15h 20m
1 stop
JFK5:00 pmNew York John F Kennedy Intl
$486
Scandinavian Airlines
Feb 11
IAD8:30 pmWashington, D.C. Dulles Intl
20h 10m
1 stop
LHR9:40 pmLondon Heathrow
Feb 18
LHR7:30 pmLondon Heathrow
26h 45m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$586

Aer Lingus flights from Pennsylvania to London

Our best Aer Lingus deals on Pennsylvania to London flight tickets
Aer Lingus
May 7
JFK9:05 pmNew York John F Kennedy Intl
10h 35m
1 stop
LHR12:40 pmLondon Heathrow
May 17
LHR1:25 pmLondon Heathrow
10h 55m
1 stop
JFK7:20 pmNew York John F Kennedy Intl
$464
Aer Lingus
Mar 1
JFK6:30 pmNew York John F Kennedy Intl
9h 45m
1 stop
LHR9:15 amLondon Heathrow
Mar 8
LHR10:00 amLondon Heathrow
11h 25m
1 stop
JFK5:25 pmNew York John F Kennedy Intl
$484
Aer Lingus
Mar 4
JFK5:00 pmNew York John F Kennedy Intl
10h 05m
1 stop
LHR8:05 amLondon Heathrow
Mar 11
LHR9:50 amLondon Heathrow
14h 39m
1 stop
JFK8:29 pmNew York John F Kennedy Intl
$491

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to London 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 February 3, 2026.
Use the filters below to find and compare flights from Pennsylvania to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkLondon

JFK - LTN

JFKLTN

New York John F Kennedy Intl

Mon 4/20

8:40 pm-6:05 pm

2 stops16h 25m

London Luton

Tue 4/28

12:45 pm-9:40 pm

1 stop13h 55m

$459

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 3/25

8:25 pm-10:50 am

1 stop10h 25m

London Heathrow

Thu 4/9

1:05 pm-10:05 pm

1 stop14h 00m

$459

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Fri 4/24

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Tue 4/28

1:05 pm-3:55 pm

Nonstop7h 50m

$459

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 4/19

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Thu 5/14

1:05 pm-3:55 pm

Nonstop7h 50m

$460

New YorkLondon

JFK - LCY

JFKLCY

New York John F Kennedy Intl

Mon 2/23

9:15 pm-9:50 pm

2 stops19h 35m

London City

Wed 2/25

4:45 pm-2:15 pm

1 stop26h 30m

$460

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 3/2

9:30 pm-9:20 am

Nonstop6h 50m

London Heathrow

Tue 3/3

7:20 pm-12:55 pm

1 stop22h 35m

$460

New YorkLondon

JFK - LTN

JFKLTN

New York John F Kennedy Intl

Mon 3/9

5:25 pm-8:10 pm

2 stops22h 45m

London Luton

Wed 3/11

8:50 pm-3:05 pm

2 stops22h 15m

$460

New YorkLondon

JFK - LCY

JFKLCY

New York John F Kennedy Intl

Sat 2/28

9:15 pm-9:50 pm

2 stops19h 35m

London City

Mon 3/2

8:25 am-6:55 pm

1 stop15h 30m

$465

New YorkLondon

JFK - LCY

JFKLCY

New York John F Kennedy Intl

Mon 2/16

4:25 pm-8:40 am

1 stop11h 15m

London City

Mon 3/2

9:15 am-4:40 pm

1 stop12h 25m

$472

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 2/16

10:00 pm-4:20 pm

1 stop13h 20m

London Heathrow

Tue 2/24

12:05 pm-8:30 pm

1 stop13h 25m

$507

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

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?

The cheapest month to fly to London from Pennsylvania is in September. Flight prices, which tend to average around $655, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Pennsylvania averaging around $663.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Pennsylvania to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $768. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $993. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Pennsylvania in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $841 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $876. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Pennsylvania to London flight route?

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

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

You are more likely to see cheaper flights to London from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $827 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Pennsylvania for as low as $689 on momondo.

What cabin class options are available on Pennsylvania to London flights?

There are 4 cabin classes available to choose from on Pennsylvania to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pennsylvania to London flights?

You could potentially save up to 3% on your flight if you consider stops on a Pennsylvania to London flight.

Cheap Pennsylvania to London flight deals and tips

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

Best Price Found

$373

Fastest flight time

6h 50m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from Pennsylvania in the past 72 hours is $373. The best round-trip flight deal from Pennsylvania to London found on momondo in the last 72 hours is $628.
The fastest flight from Pennsylvania to London takes 6h 50m
Direct flights go from Pennsylvania to London every day.
There are 6 airports in London. From Pennsylvania there are direct flights to London Heathrow (LHR).
  • When did momondo last update prices for flights from Pennsylvania to London?

    Prices for flights from Pennsylvania to London refresh daily.

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

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

    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.

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

    The travel and health documents required for your trip to London 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. 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?

Best airlines flying from Pennsylvania to London

Compare and see reviews for airlines that fly from Pennsylvania to London with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $136Free CancellationRating
7.2
2,893 reviews
Search JetBlue flights
DeltaPriceFrom $219Free CancellationRating
7.9
8,138 reviews
Search Delta flights
IcelandairPriceFrom $492Free CancellationRating
7.1
606 reviews
Search Icelandair flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,712 reviews
Search British Airways flights
American AirlinesPriceFrom $513Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
FinnairPriceFrom $515Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
Aer LingusPriceFrom $522Free CancellationRating
7.2
1,444 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
IberiaPriceFrom $593Free CancellationRating
7.0
3,103 reviews
Search Iberia flights
Air CanadaPriceFrom $647Free CancellationRating
7.1
10,684 reviews
Search Air Canada flights

Traveling to a place near London?

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

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?

Flights from Pennsylvania to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Pennsylvania.

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

Of course. momondo tracks the price of Pennsylvania to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London 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 3/5
Thu 3/12

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London