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$244+ Cheap flights from Pennsylvania to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Apr 25 — May 21
Sat 4/25
Sat 5/2
1 adult, Economy
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Cheap flight deals from Pennsylvania to Heathrow

Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:15 pm
EWR
-
LHR
1 stop15h 20m
Scandinavian Airlines
Sun 4/266:40 am
LHR
-
EWR
1 stop11h 35m
Scandinavian Airlines
Deal found 3/22$514
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:05 pm
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Wed 5/206:00 am
LHR
-
JFK
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 3/22$520
This Flysmarter deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:45 pm
EWR
-
LHR
1 stop15h 50m
Scandinavian Airlines
Sun 4/196:40 am
LHR
-
EWR
1 stop11h 35m
Scandinavian Airlines
Deal found 3/25$522
This deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:50 pm
JFK
-
LHR
1 stop11h 45m
Air Canada
Fri 5/228:30 am
LHR
-
JFK
1 stop11h 37m
Air Canada
Deal found 3/24$523
This FlightHub deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:45 pm
EWR
-
LHR
2 stops34h 10m
Scandinavian Airlines
Mon 5/117:05 am
LHR
-
EWR
1 stop11h 10m
Scandinavian Airlines
Deal found 3/23$524
This Gotogate deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:05 pm
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Tue 4/216:00 am
LHR
-
JFK
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 3/22$524
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:20 pm
EWR
-
LHR
1 stop14h 35m
Scandinavian Airlines
Mon 4/207:05 am
LHR
-
EWR
1 stop11h 10m
Scandinavian Airlines
Deal found 3/25$525
This Gotogate deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:05 pm
JFK
-
LHR
1 stop19h 00m
TAP AIR PORTUGAL
Wed 4/228:00 am
LHR
-
JFK
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 3/24$528
This Gotogate deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:05 pm
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Mon 4/207:50 pm
LHR
-
JFK
1 stop29h 15m
TAP AIR PORTUGAL
Deal found 3/22$530
This FlightHub deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:45 pm
EWR
-
LHR
2 stops34h 10m
Scandinavian Airlines
Wed 4/157:05 am
LHR
-
EWR
1 stop11h 10m
Scandinavian Airlines
Deal found 3/21$532
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:05 pm
JFK
-
LHR
1 stop19h 50m
TAP AIR PORTUGAL
Mon 5/1811:20 am
LHR
-
JFK
1 stop13h 45m
TAP AIR PORTUGAL
Deal found 3/22$532
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:00 pm
EWR
-
LHR
1 stop18h 55m
TAP AIR PORTUGAL
Sun 5/104:35 pm
LHR
-
EWR
1 stop27h 55m
TAP AIR PORTUGAL
Deal found 3/22$533

Find flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated March 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(Cheapflightsfares)

One-way from

$244
(CrystalTravel)

Popular in

June

Cheapest in

September

Average price

$776

Good round-trip deal

$802 or less

Good one-way deal

$486 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
Search Deals
From Pennsylvania to London Heathrow
Search Deals
One-way flight from Pennsylvania to London Heathrow
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pennsylvania to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Heathrow 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, Cheapflights users made 2,558,603 searches. Data last updated March 26, 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

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:20 am

1 stop31h 15m

London Heathrow

Tue 5/12

7:50 pm-8:05 pm

1 stop29h 15m

$640

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 5/1

5:20 pm-12:55 pm

1 stop14h 35m

London Heathrow

Tue 5/5

9:05 pm-1:15 pm

2 stops21h 10m

$676

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 4/22

9:35 am-9:40 pm

Nonstop7h 05m

London Heathrow

Sun 5/3

10:20 am-7:10 pm

1 stop13h 50m

$679

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 5/8

5:20 pm-2:35 pm

2 stops16h 15m

London Heathrow

Thu 5/14

9:05 pm-1:15 pm

2 stops21h 10m

$680

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 5/6

9:35 am-9:25 pm

Nonstop6h 50m

London Heathrow

Sun 5/17

7:25 am-6:45 pm

1 stop16h 20m

$696

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 5/1

6:00 am-10:40 am

1 stop23h 40m

London Heathrow

Tue 5/5

2:05 pm-8:01 am

1 stop22h 56m

$698

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 4/13

6:30 pm-6:45 am

Nonstop7h 15m

London Heathrow

Sat 4/25

6:15 am-1:53 pm

1 stop12h 38m

$702

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 9/4

6:30 pm-6:45 am

Nonstop7h 15m

London Heathrow

Mon 9/7

8:40 am-2:35 pm

1 stop10h 55m

$702

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 4/21

8:25 am-8:40 pm

Nonstop7h 15m

London Heathrow

Tue 4/28

9:30 am-12:25 pm

Nonstop7h 55m

$708

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 9/4

6:30 pm-6:45 am

Nonstop7h 15m

London Heathrow

Sat 9/12

12:50 pm-3:35 pm

Nonstop7h 45m

$708

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Pennsylvania to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pennsylvania with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to London Heathrow Airport

What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $483). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of $875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to LHR?

Find hourly flight availability from Pennsylvania to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2026.

When flying from Pennsylvania to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Pennsylvania to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Pennsylvania to London Heathrow Airport?

    Departing from Pennsylvania to London Heathrow Airport will take you 7h 05m. There are 3440 mi between Pennsylvania and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Pennsylvania to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $131 on JetBlue. Other airlines that offer cheap prices include Icelandair from $161 and TAP AIR PORTUGAL from $198 one-way.

  • What are the most popular routes from Pennsylvania to London Heathrow Airport?

    Most travelers choose New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York LaGuardia - London Heathrow when deciding on the best route from Pennsylvania to London Heathrow Airport.

  • What are the most reliable airlines from Pennsylvania to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Aer Lingus (80%), American Airlines (78%) and Finnair (78%).

  • What are the cheapest flights from Pennsylvania to London Heathrow Airport?

    The cheapest flight price from Pennsylvania to London Heathrow Airport is $380. On average you can expect to pay $1,906. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $531.

  • Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Heathrow.

  • Can I find deals for business class flights from Pennsylvania to Heathrow?

    Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $483). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of $875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Pennsylvania to Heathrow

Discover the top 10 airlines that operate flights from Pennsylvania to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$219Average$907FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$295Average$721FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$492Average$697FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$502Average$800FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$808FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$515Average$882FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$522Average$773FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$577Average$899FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$583Average$881FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$647Average$1,213FlexibilityNo cancel feeOn-time67%

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