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$271+ 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
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 June 30, 2025.

Round-trip from

$619
(Mytrip)

One-way from

$271
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,151

Good round-trip deal

$700 or less

Good one-way deal

$508 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 ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 30, 2025.

This Delta deal was found by Cheapflights users on 6/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:26 pmPHL - MAN
1 stop33h 09mDelta
Thu 8/2812:35 pmMAN - PHL
1 stop14h 45mDelta
Deal found 6/28$629
This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:05 amPHL - LHR
2 stops18h 30mMultiple Airlines
Wed 10/86:50 amLHR - PHL
2 stops12h 48mMultiple Airlines
Deal found 6/30$629
This Air Canada deal was found by Cheapflights users on 6/30. 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.
Mon 9/223:25 pmPHL - LHR
1 stop13h 10mAir Canada
Thu 10/26:50 amLHR - PHL
2 stops12h 48mAir Canada
Deal found 6/30$630
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Mon 10/139:20 amPHL - LHR
1 stop19h 15mUnited Airlines
Tue 10/217:25 amLHR - PHL
2 stops20h 04mUnited Airlines
Deal found 6/30$631
This Iberia deal was found by Cheapflights users on 6/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:40 pmPHL - LHR
1 stop13h 10mIberia
Wed 8/206:05 pmLHR - PHL
1 stop25h 00mIberia
Deal found 6/30$632
This Lufthansa deal was found by Cheapflights users on 6/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:50 pmPHL - LHR
1 stop32h 45mLufthansa
Tue 10/218:30 amLHR - PHL
1 stop12h 30mLufthansa
Deal found 6/30$634
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:35 pmPHL - LHR
1 stop12h 55mBritish Airways
Thu 11/136:30 amLHR - PHL
1 stop12h 25mBritish Airways
Deal found 6/28$636
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/1111:16 amPHL - LGW
1 stop14h 39mMultiple Airlines
Sun 8/242:00 pmLGW - PHL
2 stops26h 11mMultiple Airlines
Deal found 6/29$636
This Mytrip deal was found by Cheapflights users on 6/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:20 amPHL - MAN
2 stops17h 45mMultiple Airlines
Tue 9/166:05 amMAN - PHL
2 stops13h 33mMultiple Airlines
Deal found 6/28$639
This Finnair deal was found by Cheapflights users on 6/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/117:50 pmPHL - LHR
Nonstop7h 15mFinnair
Wed 8/2010:05 amLHR - PHL
Nonstop8h 05mFinnair
Deal found 6/29$639
This Mytrip deal was found by Cheapflights users on 6/30. 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 8/133:20 pmPHL - STN
2 stops24h 35mMultiple Airlines
Mon 8/2510:00 pmSTN - PHL
2 stops29h 07mMultiple Airlines
Deal found 6/30$645
This JetBlue deal was found by Cheapflights users on 6/29. 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.
Thu 10/26:40 pmPHL - LGW
1 stop9h 55mJetBlue
Tue 10/712:10 pmLGW - PHL
1 stop14h 14mJetBlue
Deal found 6/29$645

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 June 30, 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

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Sat 8/9

6:26 pm-8:35 am

1 stop33h 09m

Manchester

Thu 8/28

12:35 pm-10:20 pm

1 stop14h 45m

$629

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 9/28

3:25 pm-9:35 am

1 stop13h 10m

London Heathrow

Thu 10/9

6:50 am-9:38 pm

2 stops19h 48m

$629

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Fri 9/26

6:40 pm-9:35 am

1 stop9h 55m

London Gatwick

Tue 9/30

12:10 pm-9:24 pm

1 stop14h 14m

$631

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/13

1:40 pm-7:50 am

1 stop13h 10m

London Heathrow

Wed 8/20

6:05 pm-2:05 pm

1 stop25h 00m

$632

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sat 9/20

4:50 pm-6:35 am

1 stop32h 45m

London Heathrow

Tue 9/30

6:30 am-4:00 pm

1 stop14h 30m

$634

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/6

7:40 pm-7:55 am

Nonstop7h 15m

London Heathrow

Tue 9/9

1:30 pm-4:25 pm

Nonstop7h 55m

$636

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 8/11

11:16 am-6:55 am

1 stop14h 39m

London Gatwick

Mon 8/18

10:00 am-9:46 am

1 stop28h 46m

$636

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 9/8

9:20 am-8:05 am

2 stops17h 45m

Manchester

Tue 9/16

6:05 am-2:38 pm

2 stops13h 33m

$639

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Wed 8/13

3:20 pm-8:55 pm

2 stops24h 35m

London Stansted

Mon 8/25

10:00 pm-10:07 pm

2 stops29h 07m

$645

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/20

9:39 am-8:55 am

1 stop18h 16m

London Heathrow

Wed 8/27

9:00 am-9:24 pm

2 stops17h 24m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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 $1,098). 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 June 30, 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 June 30, 2025.

The most flights from PHL to GB0 are scheduled on a Monday (15 on average). You will have fewer flight options on Wednesday, 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 June 30, 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
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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
1,365 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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
1,299 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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!
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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 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 Lufthansa ($349), JetBlue ($359), and Air Canada ($394).

  • 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 (86%), Finnair( 86%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $443. On average you can expect to pay $1,836. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $584.

  • 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 $1,098). 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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$541Average$916FlexibilityNo cancel feeOn-time67%
JetBlueCheapest$546Average$712FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$560Average$831FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$585Average$931FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$593Average$864FlexibilityNo cancel feeOn-time71%
IberiaCheapest$611Average$820FlexibilityNo cancel feeOn-time77%
DeltaCheapest$619Average$1,051FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$638Average$879FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$673Average$936FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$835FlexibilityNo cancel feeOn-time76%

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