HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
United Kingdom

$192+ Cheap flights from Philadelphia (PHL) to the United Kingdom

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to United Kingdom with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Philadelphia to United Kingdom

Cheapest flights from Philadelphia to United Kingdom
Explore the most affordable flight options available from Philadelphia to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Norse deal was found by Cheapflights users on 1/28. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:30 am
PHL
-
LGW
1 stop23h 30m
Multiple Airlines
Mon 3/22:00 pm
LGW
-
PHL
1 stop33h 51m
Multiple Airlines
Deal found 1/28$595
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Mon 2/235:05 am
PHL
-
LGW
1 stop23h 55m
Multiple Airlines
Fri 2/272:00 pm
LGW
-
PHL
1 stop24h 06m
Multiple Airlines
Deal found 1/27$597
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Wed 4/224:25 pm
PHL
-
STN
2 stops23h 55m
Multiple Airlines
Wed 4/296:30 am
STN
-
PHL
2 stops14h 14m
Multiple Airlines
Deal found 1/27$598
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/179:39 am
PHL
-
LGW
2 stops39h 21m
Multiple Airlines
Mon 2/232:00 pm
LGW
-
PHL
1 stop27h 39m
Multiple Airlines
Deal found 1/27$598
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Mon 4/205:05 am
PHL
-
LGW
2 stops20h 15m
Multiple Airlines
Tue 4/282:00 pm
LGW
-
PHL
1 stop25h 38m
Multiple Airlines
Deal found 1/28$601
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Fri 3/204:35 pm
PHL
-
EDI
2 stops21h 30m
Multiple Airlines
Tue 3/316:15 am
EDI
-
PHL
2 stops14h 50m
Multiple Airlines
Deal found 1/27$602
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Thu 3/53:15 pm
PHL
-
LGW
1 stop13h 45m
Multiple Airlines
Fri 3/201:00 pm
LGW
-
PHL
2 stops39h 58m
Multiple Airlines
Deal found 1/28$604
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sun 3/86:40 pm
PHL
-
MAN
1 stop18h 20m
Lufthansa
Tue 3/246:00 am
MAN
-
PHL
1 stop15h 05m
Lufthansa
Deal found 1/28$608
This Norse deal was found by Cheapflights users on 1/27. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:30 am
PHL
-
LGW
1 stop23h 30m
Multiple Airlines
Thu 3/52:00 pm
LGW
-
PHL
1 stop33h 51m
Multiple Airlines
Deal found 1/27$608
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:25 pm
PHL
-
GLA
2 stops16h 25m
British Airways
Tue 3/242:00 pm
GLA
-
PHL
2 stops25h 41m
British Airways
Deal found 1/26$608
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Mon 2/231:02 pm
PHL
-
LGW
2 stops15h 58m
Multiple Airlines
Thu 2/262:00 pm
LGW
-
PHL
1 stop22h 32m
Multiple Airlines
Deal found 1/27$609
This Gotogate deal was found by Cheapflights users on 1/28. 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.
Wed 2/113:30 pm
PHL
-
MAN
2 stops20h 25m
Multiple Airlines
Wed 2/186:10 am
MAN
-
PHL
2 stops13h 37m
Multiple Airlines
Deal found 1/28$610

Find flight deals from Philadelphia to United Kingdom

Keep the following information in mind while searching for Philadelphia to United Kingdom flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$595
(Norse)

One-way from

$192
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$703

Good round-trip deal

$634 or less

Good one-way deal

$347 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 Philadelphia to United Kingdom
Search Deals
One-way flight from Philadelphia to United Kingdom
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Philadelphia to United Kingdom.
Search Deals
Price to beat on a one-way flight from Philadelphia to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to United Kingdom 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 January 29, 2026.
Use the filters below to find and compare flights from Philadelphia to the United Kingdom that are best for you.

Fly from

Philadelphia

Fly to

United Kingdom

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Wed 4/22

4:25 pm-9:20 pm

2 stops23h 55m

London Stansted

Wed 4/29

6:30 am-3:44 pm

2 stops14h 14m

$598

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 3/18

7:25 pm-1:55 pm

2 stops14h 30m

Manchester

Thu 3/26

5:40 am-5:15 pm

1 stop15h 35m

$614

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Mon 2/23

7:20 pm-2:30 pm

2 stops14h 10m

Glasgow Intl

Mon 3/2

8:25 pm-4:15 pm

1 stop24h 50m

$617

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 3/18

7:25 pm-3:50 pm

2 stops16h 25m

Glasgow Intl

Wed 3/25

3:25 pm-4:45 pm

2 stops29h 20m

$620

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Sun 5/3

2:46 pm-9:50 am

2 stops14h 04m

Glasgow Intl

Wed 5/13

2:05 pm-4:40 pm

1 stop31h 35m

$624

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 5/12

7:50 pm-2:40 pm

1 stop13h 50m

Glasgow Intl

Thu 5/21

8:35 am-3:30 pm

1 stop11h 55m

$628

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sun 3/29

5:40 pm-9:40 pm

2 stops23h 00m

London Luton

Sat 4/4

9:25 pm-3:44 pm

2 stops23h 19m

$635

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 4/7

5:40 pm-5:35 pm

1 stop18h 55m

Manchester

Tue 4/14

5:55 am-4:05 pm

1 stop15h 10m

$636

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 2/11

12:16 pm-8:20 am

2 stops15h 04m

Manchester

Wed 2/18

1:00 pm-12:24 am

1 stop16h 24m

$637

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 3/4

10:37 am-8:30 am

2 stops16h 53m

Glasgow Intl

Thu 3/19

6:05 am-9:23 pm

2 stops19h 18m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Philadelphia to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Philadelphia 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 Philadelphia to the United Kingdom

What is the cheapest month to book a flight from Philadelphia to United Kingdom?

Currently, November is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $75). Flying from Philadelphia to United Kingdom in July is currently the most expensive (average of $406). 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 PHL to GB?

Find hourly flight availability from Philadelphia to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to United Kingdom as you normally would.

Weekly flight availability from Philadelphia to United Kingdom

Explore weekly flight availability from Philadelphia to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2026.

The most flights from PHL to GB0 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated January 29, 2026.
Peruse reviews from past customers who have flown with Finnair, American Airlines, and Aer Lingus from Philadelphia to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,356 reviews
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
American Airlines
7.2
Good
11,206 reviews
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Aer Lingus
7.2
Good
1,443 reviews
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Iberia
7.0
Good
3,100 reviews
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
British Airways
6.7
Okay
7,705 reviews
Finnair
7.6
Good
1,356 reviews

Food

6.7

Boarding

7.7

Comfort

7.5

Overall

7.6

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

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

  • What airport do you fly from for flights from Philadelphia to United Kingdom?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to United Kingdom.

  • How long is the flight from Philadelphia to United Kingdom?

    Departing from Philadelphia to United Kingdom will take you 13h 50m. The distance between Philadelphia and United Kingdom is about 3297 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Philadelphia to United Kingdom one-way?

    The cheapest airlines for a one-way flight from Philadelphia to United Kingdom are JetBlue ($174), TAP AIR PORTUGAL ($198), and Iberia ($353).

  • What are the most popular routes from Philadelphia to United Kingdom?

    The most popular route from Philadelphia to United Kingdom is Philadelphia - London Heathrow. You may also consider Philadelphia - London Gatwick or Philadelphia - Edinburgh Turnhouse.

  • What are the most reliable airlines from Philadelphia to United Kingdom?

    Before booking your flight to United Kingdom from Philadelphia, check out the most reliable airlines to get you to your destination on time: Aer Lingus (87%), American Airlines (84%), Finnair( 84%).

  • What are the cheapest flights from Philadelphia to United Kingdom?

    The cheapest flight price from Philadelphia to United Kingdom is $244. On average you can expect to pay $1,951. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $639.

  • Can I find deals for flights from Philadelphia to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Philadelphia to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to United Kingdom?

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

  • Can I find deals for business class flights from Philadelphia to United Kingdom?

    Yes. Cheapflights offers flight deals from Philadelphia to United Kingdom 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 Philadelphia to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $75). Flying from Philadelphia to United Kingdom in July is currently the most expensive (average of $406). 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

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.

Alternative routes for Philadelphia to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
LaGuardia to Heathrow flights
Newark to Athens flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Orly flights
Dulles Intl to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to Madrid flights
Newark to Barcelona-El Prat flights
LaGuardia to Charles de Gaulle flights
Newark to Madrid flights
Newark to Dublin flights
John F Kennedy Intl to Dublin flights
Newark to Malpensa flights
John F Kennedy Intl to Malpensa flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Istanbul flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Athens flights
Dulles Intl to Charles de Gaulle flights
John F Kennedy Intl to Barcelona-El Prat flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Amsterdam flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Frederic Chopin flights
Newark to Lisbon flights
Newark to Amsterdam flights
John F Kennedy Intl to Luton flights
John F Kennedy Intl to Frankfurt flights
John F Kennedy Intl to Linate flights
John F Kennedy Intl to Zurich flights
Newark to Frankfurt flights
LaGuardia to Madrid flights
Dulles Intl to Madrid flights
LaGuardia to Athens flights
Dulles Intl to Dublin flights
Newark to Linate flights
Dulles Intl to Athens flights
Newark to Stansted flights
Newark to Zurich flights
LaGuardia to Malpensa flights
LaGuardia to Lisbon flights

Top 9 airlines flying from Philadelphia to United Kingdom

Discover the top 9 airlines that operate flights from Philadelphia to United Kingdom. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$507Average$849FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$511Average$905FlexibilityNo cancel feeOn-time71%
FinnairCheapest$515Average$860FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$522Average$925FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$936FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$589Average$721FlexibilityNo cancel feeOn-time62%
IberiaCheapest$594Average$807FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$857FlexibilityNo cancel feeOn-time76%
DeltaCheapest$766Average$1,096FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.