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$265+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
ago. 12 — ago. 191
mar. 8/12
mar. 8/19
1 adult, Economy
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Cheap 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 agosto 7, 2025.

Round-trip from

$493
(Cheapflightsfares)

One-way from

$265
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$704

Good round-trip deal

$599 or less

Good one-way deal

$464 or less
From Philadelphia to United Kingdom
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One-way flight from Philadelphia to United Kingdom
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Highest demand for flights based on searches. 19% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Philadelphia to United Kingdom.
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Price to beat on a one-way flight from Philadelphia to United Kingdom.
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Find 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 agosto 7, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
mié. 9/36:30 pmPHL - LHR
Nonstop7h 10mBritish Airways
mié. 9/107:55 amLHR - PHL
1 stop11h 00mBritish Airways
Deal found 8/6$493
This Netflights deal was found by Cheapflights users on 8/6. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/202:35 pmPHL - LHR
1 stop17h 55mVirgin Atlantic
mié. 8/2712:25 pmLHR - PHL
1 stop13h 59mVirgin Atlantic
Deal found 8/6$494
This oojo deal was found by Cheapflights users on 8/6. 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.
mar. 9/29:15 pmPHL - LGW
1 stop19h 35mBritish Airways
mar. 9/302:30 pmLGW - PHL
1 stop24h 09mBritish Airways
Deal found 8/6$494
This oojo deal was found by Cheapflights users on 8/5. 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.
mié. 8/2010:15 pmPHL - LHR
Nonstop7h 05mBritish Airways
mié. 8/276:30 amLHR - PHL
1 stop15h 15mBritish Airways
Deal found 8/5$495
This oojo deal was found by Cheapflights users on 8/6. 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.
mar. 10/144:00 pmPHL - LHR
1 stop12h 30mBritish Airways
vie. 10/247:55 amLHR - PHL
1 stop13h 55mBritish Airways
Deal found 8/6$496
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
mar. 9/910:15 pmPHL - LHR
Nonstop7h 05mBritish Airways
jue. 10/2312:30 pmLHR - PHL
Nonstop8h 05mBritish Airways
Deal found 8/6$497
This Norse deal was found by Cheapflights users on 8/4. 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.
dom. 10/55:30 amPHL - LGW
1 stop23h 40mMultiple Airlines
mié. 10/82:00 pmLGW - PHL
1 stop15h 35mMultiple Airlines
Deal found 8/4$497
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
mié. 9/106:30 pmPHL - LHR
Nonstop7h 10mBritish Airways
jue. 9/2512:30 pmLHR - PHL
Nonstop8h 00mBritish Airways
Deal found 8/6$498
This oojo deal was found by Cheapflights users on 8/6. 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.
mar. 10/146:06 pmPHL - LHR
1 stop8h 44mBritish Airways
lun. 10/2012:45 pmLHR - PHL
1 stop28h 00mBritish Airways
Deal found 8/6$499
This Ovago deal was found by Cheapflights users on 8/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/205:29 pmPHL - LHR
1 stop9h 21mBritish Airways
mié. 9/36:45 amLHR - PHL
1 stop12h 10mBritish Airways
Deal found 8/6$500
This American Airlines deal was found by Cheapflights users on 8/5. 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.
dom. 8/1710:15 pmPHL - LHR
Nonstop7h 05mAmerican Airlines
mar. 8/268:00 amLHR - PHL
1 stop11h 05mAmerican Airlines
Deal found 8/5$501
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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.
mié. 12/109:10 pmPHL - LCY
1 stop10h 30mBritish Airways
mar. 1/136:50 amLCY - PHL
1 stop12h 05mBritish Airways
Deal found 8/7$501

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 agosto 7, 2025.
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 - LHR

PHLLHR

Philadelphia

mié. 9/3

6:30 pm-6:40 am

Nonstop7h 10m

London Heathrow

mié. 9/10

7:55 am-1:55 pm

1 stop11h 00m

$493

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 8/20

2:35 pm-1:30 pm

1 stop17h 55m

London Heathrow

mié. 8/27

12:25 pm-9:24 pm

1 stop13h 59m

$494

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

mar. 9/2

9:15 pm-9:50 pm

1 stop19h 35m

London Gatwick

mar. 9/30

2:30 pm-9:39 am

1 stop24h 09m

$494

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 8/20

10:15 pm-10:20 am

Nonstop7h 05m

London Heathrow

mié. 8/27

6:30 am-4:45 pm

1 stop15h 15m

$495

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mar. 10/14

6:08 pm-7:50 am

1 stop8h 42m

London Heathrow

mar. 10/21

8:55 am-4:50 pm

1 stop12h 55m

$496

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

dom. 10/5

5:30 am-10:10 am

1 stop23h 40m

London Gatwick

mié. 10/8

2:00 pm-12:35 am

1 stop15h 35m

$497

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mar. 9/9

10:15 pm-10:20 am

Nonstop7h 05m

London Heathrow

jue. 10/23

12:30 pm-3:35 pm

Nonstop8h 05m

$497

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 9/10

6:30 pm-6:40 am

Nonstop7h 10m

London Heathrow

jue. 9/25

12:30 pm-3:30 pm

Nonstop8h 00m

$498

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mar. 10/14

6:06 pm-7:50 am

1 stop8h 44m

London Heathrow

lun. 10/20

12:45 pm-11:45 am

1 stop28h 00m

$499

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

dom. 8/17

10:15 pm-10:20 am

Nonstop7h 05m

London Heathrow

mar. 8/26

8:00 am-2:05 pm

1 stop11h 05m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 60 results
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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 $661). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $1,097). 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 agosto 7, 2025.

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 agosto 7, 2025.

The most flights from PHL to GB0 are scheduled on a Wednesday (15 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 agosto 7, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Finnair 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.
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,382 reviews
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,319 reviews
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.6
Good
1,692 reviews
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.4
Good
1,466 reviews
Delta
8.0
Very good
7,987 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection 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.

  • 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 - London City.

  • 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 (77%), American Airlines (69%), Finnair( 69%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $413. On average you can expect to pay $1,809. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $463.

  • 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 $661). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $1,097). 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

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Alternative routes for Philadelphia to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Philadelphia to United Kingdom

Discover the top 10 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 agosto 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$454Average$713FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$556Average$819FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$556Average$807FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$569Average$931FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$579Average$888FlexibilityNo cancel feeOn-time71%
IberiaCheapest$608Average$817FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$887FlexibilityNo cancel feeOn-time76%
DeltaCheapest$623Average$1,138FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$623Average$879FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$659Average$832FlexibilityNo cancel feeOn-time69%

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