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$220+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$546
(Kiwi.com)

One-way from

$220
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$704

Good round-trip deal

$714 or less

Good one-way deal

$477 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
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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 ($33 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 3, 2025.

This Mytrip deal was found by Cheapflights users on 11/3. 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 11/95:30 pmPHL - LBA
1 stop9h 00mMultiple Airlines
Tue 11/187:30 amLBA - PHL
1 stop13h 30mMultiple Airlines
Deal found 11/3$498
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/25:30 pmPHL - GLA
1 stop8h 50mMultiple Airlines
Tue 12/98:25 amGLA - PHL
1 stop12h 35mMultiple Airlines
Deal found 11/2$546
This Mytrip deal was found by Cheapflights users on 11/2. 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 11/305:30 pmPHL - MAN
1 stop9h 25mMultiple Airlines
Sun 12/78:25 amMAN - PHL
1 stop12h 35mMultiple Airlines
Deal found 11/2$556
This Mytrip deal was found by Cheapflights users on 11/2. 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 12/13:30 pmPHL - STN
3 stops21h 50mMultiple Airlines
Mon 12/85:00 pmSTN - PHL
3 stops26h 50mMultiple Airlines
Deal found 11/2$561
This Mytrip deal was found by Cheapflights users on 11/2. 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 12/13:30 pmPHL - LGW
3 stops20h 50mMultiple Airlines
Mon 12/89:30 pmLGW - PHL
3 stops22h 20mMultiple Airlines
Deal found 11/2$561
This Gotogate deal was found by Cheapflights users on 11/1. 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.
Sun 11/93:30 pmPHL - LHR
2 stops12h 50mMultiple Airlines
Tue 11/186:50 amLHR - PHL
2 stops12h 57mMultiple Airlines
Deal found 11/1$565
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/165:05 amPHL - LGW
2 stops43h 55mMultiple Airlines
Thu 11/202:00 pmLGW - PHL
1 stop14h 03mMultiple Airlines
Deal found 11/1$568
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Tue 11/189:20 amPHL - STN
2 stops28h 00mMultiple Airlines
Tue 11/259:45 pmSTN - PHL
2 stops30h 01mMultiple Airlines
Deal found 11/3$570
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/159:30 amPHL - LGW
2 stops39h 30mMultiple Airlines
Thu 11/202:00 pmLGW - PHL
1 stop14h 03mMultiple Airlines
Deal found 11/1$573
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/111:57 pmPHL - LGW
2 stops35h 03mMultiple Airlines
Thu 11/202:00 pmLGW - PHL
1 stop14h 03mMultiple Airlines
Deal found 11/1$574
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/29:00 amPHL - LGW
2 stops40h 00mMultiple Airlines
Sat 12/62:00 pmLGW - PHL
1 stop14h 34mMultiple Airlines
Deal found 11/1$576
This Gotogate deal was found by Cheapflights users on 11/2. 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.
Sun 11/93:30 pmPHL - LHR
2 stops24h 05mAir Canada
Tue 11/189:00 amLHR - PHL
2 stops18h 46mAir Canada
Deal found 11/2$578

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 November 3, 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

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 12/2

5:30 pm-7:20 am

1 stop8h 50m

Glasgow Intl

Tue 12/9

8:25 am-4:00 pm

1 stop12h 35m

$546

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 1/29

11:22 am-4:00 pm

2 stops23h 38m

London Heathrow

Mon 2/2

6:40 am-9:16 pm

2 stops19h 36m

$599

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 1/15

11:30 am-9:20 am

2 stops16h 50m

London Heathrow

Mon 1/19

9:05 pm-9:16 pm

3 stops29h 11m

$606

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 11/9

8:00 pm-10:50 am

1 stop9h 50m

London Heathrow

Tue 11/18

8:30 am-4:05 pm

1 stop12h 35m

$612

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 12/1

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

Tue 12/9

8:30 am-4:05 pm

1 stop12h 35m

$614

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 11/30

6:02 am-11:25 am

1 stop24h 23m

London Heathrow

Tue 12/9

6:30 am-4:32 pm

2 stops15h 02m

$619

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 12/10

1:23 pm-12:45 pm

2 stops18h 22m

Manchester

Wed 12/17

1:30 pm-12:51 am

1 stop16h 21m

$621

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 12/2

12:37 pm-8:30 am

2 stops14h 53m

Glasgow Intl

Tue 12/9

9:05 am-7:39 pm

2 stops15h 34m

$623

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sat 1/31

4:35 pm-6:30 am

1 stop32h 55m

London Heathrow

Mon 2/9

1:45 pm-10:46 pm

2 stops38h 01m

$624

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 3/11

11:30 am-10:10 am

2 stops18h 40m

Manchester

Thu 3/19

1:30 pm-10:56 pm

1 stop13h 26m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 60 results
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2
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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, August is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $144). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $480). 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 November 3, 2025.

One of the essential ways to save on airfare from Philadelphia to United Kingdom is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Philadelphia to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to United Kingdom flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 3, 2025.

The most flights from PHL to GB0 are scheduled on a Sunday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 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 November 3, 2025.
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
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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
1,335 reviews
Finnair
7.6
Good
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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
11,033 reviews
Finnair
7.6
Good
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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
1,365 reviews
Finnair
7.6
Good
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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
3,006 reviews
Finnair
7.6
Good
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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
7,494 reviews
Finnair
7.6
Good
1,335 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

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 9h 50m. The distance between Philadelphia and United Kingdom is about 3533 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 British Airways ($227), JetBlue ($284), and TAP AIR PORTUGAL ($295).

  • 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: Malaysia Airlines (83%), Iberia (82%), British Airways( 81%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $412. On average you can expect to pay $2,102. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $572.

  • 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, August is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $144). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $480). 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$505Average$911FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$509Average$833FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$860FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$523Average$905FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$541Average$824FlexibilityNo cancel feeOn-time67%
JetBlueCheapest$550Average$715FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$560Average$826FlexibilityNo cancel feeOn-time69%
IberiaCheapest$584Average$834FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$890FlexibilityNo cancel feeOn-time76%
DeltaCheapest$784Average$1,174FlexibilityNo cancel feeOn-timeN/A

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