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$304+ Cheap flights from the United Kingdom to Philadelphia (PHL)

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from United Kingdom to Philadelphia

Keep the following information in mind while searching for United Kingdom to Philadelphia flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$478
(United Airlines)

One-way from

$304
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$701

Good round-trip deal

$704 or less

Good one-way deal

$644 or less
Provider with most accurate pricing for London (LON)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Philadelphia flights.
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From United Kingdom to Philadelphia
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One-way flight from United Kingdom to Philadelphia
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Highest demand for flights based on searches. 10% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from United Kingdom to Philadelphia.
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Price to beat on a one-way flight from United Kingdom to Philadelphia.
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Find flight deals from United Kingdom to Philadelphia

Cheapest flights from United Kingdom to Philadelphia
Explore the most affordable flight options available from United Kingdom to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/89:00 amEDI - PHL
1 stop11h 48mUnited Airlines
Sun 5/116:15 amPHL - EDI
2 stops21h 10mUnited Airlines
Deal found 3/27$478
This Air Canada deal was found by Cheapflights users on 3/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:30 pmLHR - PHL
2 stops24h 21mAir Canada
Sun 11/93:30 pmPHL - LHR
1 stop10h 40mAir Canada
Deal found 3/27$578
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/232:00 pmLGW - PHL
1 stop22h 32mMultiple Airlines
Wed 4/3012:03 pmPHL - LGW
1 stop16h 57mMultiple Airlines
Deal found 3/27$580
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:45 amLHR - PHL
1 stop12h 40mAmerican Airlines
Wed 5/142:00 pmPHL - LHR
1 stop11h 15mAmerican Airlines
Deal found 3/27$582
This TravelUp deal was found by Cheapflights users on 3/27. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/29:30 amLHR - PHL
1 stop11h 30mMultiple Airlines
Sun 5/113:20 pmPHL - LHR
1 stop13h 40mMultiple Airlines
Deal found 3/27$590
This The Travel House deal was found by Cheapflights users on 3/27. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:25 amLHR - PHL
1 stop19h 03mIcelandair
Mon 5/56:00 amPHL - LHR
1 stop19h 30mIcelandair
Deal found 3/27$591
This JetBlue deal was found by Cheapflights users on 3/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/238:25 amLHR - PHL
1 stop13h 27mJetBlue
Tue 4/298:34 amPHL - LHR
1 stop16h 56mJetBlue
Deal found 3/27$594
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/231:25 pmLHR - PHL
1 stop10h 35mBritish Airways
Wed 4/302:47 pmPHL - LHR
1 stop12h 03mBritish Airways
Deal found 3/27$605
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Thu 5/19:20 amSTN - PHL
1 stop14h 40mMultiple Airlines
Wed 5/78:30 pmPHL - STN
1 stop12h 55mMultiple Airlines
Deal found 3/27$608
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/1212:50 pmLTN - PHL
1 stop11h 10mMultiple Airlines
Mon 5/198:30 pmPHL - LTN
1 stop14h 30mMultiple Airlines
Deal found 3/28$608
This The Travel House deal was found by Cheapflights users on 3/27. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/712:10 pmLGW - PHL
1 stop26h 29mIcelandair
Thu 7/1710:25 amPHL - LGW
1 stop18h 10mIcelandair
Deal found 3/27$622
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 4/2411:40 amEDI - PHL
1 stop12h 20mMultiple Airlines
Thu 5/18:30 pmPHL - EDI
1 stop11h 35mMultiple Airlines
Deal found 3/28$623

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Philadelphia 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 28, 2025.
Use the filters below to find and compare flights from the United Kingdom to Philadelphia that are best for you.

Fly from

United Kingdom

Fly to

Philadelphia

Route

Depart

Return

Price

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Thu 5/8

9:00 am-3:48 pm

1 stop11h 48m

Philadelphia

Sun 5/11

6:15 am-8:25 am

2 stops21h 10m

$478

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 4/23

2:00 pm-7:32 am

1 stop22h 32m

Philadelphia

Wed 4/30

12:03 pm-10:00 am

1 stop16h 57m

$580

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 5/7

8:45 am-4:25 pm

1 stop12h 40m

Philadelphia

Wed 5/14

2:00 pm-6:15 am

1 stop11h 15m

$582

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 5/2

9:30 am-4:00 pm

1 stop11h 30m

Philadelphia

Sun 5/11

3:20 pm-10:00 am

1 stop13h 40m

$590

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/1

8:25 am-10:28 pm

1 stop19h 03m

Philadelphia

Mon 5/5

6:00 am-6:30 am

1 stop19h 30m

$591

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 4/23

8:25 am-4:52 pm

1 stop13h 27m

Philadelphia

Tue 4/29

8:34 am-6:30 am

1 stop16h 56m

$594

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 4/23

1:25 pm-7:00 pm

1 stop10h 35m

Philadelphia

Wed 4/30

2:47 pm-7:50 am

1 stop12h 03m

$605

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 5/12

9:30 am-4:00 pm

1 stop11h 30m

Philadelphia

Mon 5/19

3:20 pm-10:00 am

1 stop13h 40m

$606

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 5/1

9:20 am-7:00 pm

1 stop14h 40m

Philadelphia

Wed 5/7

8:30 pm-2:25 pm

1 stop12h 55m

$608

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/1

9:30 am-2:36 pm

1 stop10h 06m

Philadelphia

Wed 5/7

9:45 am-6:30 am

1 stop15h 45m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Philadelphia

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

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

Currently, August is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of $236). Flying from United Kingdom to Philadelphia in March is currently the most expensive (average of $295). 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 GB to PHL?

Find hourly flight availability from United Kingdom to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

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

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated March 28, 2025.
See what other customers who have flown with Delta, KLM and Finnair from United Kingdom to Philadelphia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Philadelphia. 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 into for flights to Philadelphia from United Kingdom?

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

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

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $547. WestJet flights start at $551 while deals on Finnair start at $592 one-way.

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

    The most popular flight routes from United Kingdom to Philadelphia are London Heathrow - Philadelphia, London Gatwick - Philadelphia and London City - Philadelphia.

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

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Philadelphia consider choosing Malaysia Airlines (80%), American Airlines (77%) or Finnair (77%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from United Kingdom to Philadelphia is $598. On average you can expect to pay $1,557. The most popular route, (London Heathrow - Philadelphia), can usually be booked for $390.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of $236). Flying from United Kingdom to Philadelphia in March is currently the most expensive (average of $295). 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 the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
King of Prussia
Vineland
Pottstown
Wildwood
Reading
Cherry Hill
Exton
Ocean City
Essington
Chester
Newark
Middletown
Willow Grove
Millville
Ephrata
Camden
Dewey Beach
West Chester
Malvern
Dover

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from United Kingdom to Philadelphia

Discover the top 5 airlines that operate flights from United Kingdom to Philadelphia. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$583Average$821FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$596Average$770FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$640Average$921FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$644Average$859FlexibilityNo cancel feeOn-time77%
FinnairCheapest$648Average$773FlexibilityNo cancel feeOn-time76%
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