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$160+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$492
(Gotogate)

One-way from

$160
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$680

Good round-trip deal

$613 or less

Good one-way deal

$487 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 ($189 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 September 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 septiembre 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/10. 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.
mar. 11/43:30 pmPHL - LHR
2 stops14h 50mMultiple Airlines
vie. 11/146:50 amLHR - PHL
2 stops12h 57mMultiple Airlines
Deal found 9/10$492
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/73:30 pmPHL - LHR
1 stop10h 40mAir Canada
dom. 11/96:50 amLHR - PHL
2 stops12h 57mAir Canada
Deal found 9/10$493
This Norse deal was found by Cheapflights users on 9/8. 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.
sáb. 9/278:43 pmPHL - LGW
1 stop32h 27mMultiple Airlines
jue. 10/22:00 pmLGW - PHL
1 stop28h 02mMultiple Airlines
Deal found 9/8$493
This American Airlines deal was found by Cheapflights users on 9/11. 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.
mar. 11/117:45 pmPHL - LHR
Nonstop7h 05mAmerican Airlines
mar. 11/188:15 amLHR - PHL
1 stop12h 35mAmerican Airlines
Deal found 9/11$494
This Mytrip deal was found by Cheapflights users on 9/11. 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.
mié. 10/13:25 pmPHL - LHR
1 stop10h 05mAir Canada
vie. 10/316:00 pmLHR - PHL
2 stops24h 47mAir Canada
Deal found 9/11$495
This American Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 10/287:35 pmPHL - LHR
Nonstop7h 00mAmerican Airlines
vie. 11/78:25 amLHR - PHL
1 stop12h 15mAmerican Airlines
Deal found 9/10$496
This American Airlines deal was found by Cheapflights users on 9/11. 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.
mar. 11/117:45 pmPHL - LHR
Nonstop7h 05mAmerican Airlines
jue. 11/208:25 amLHR - PHL
1 stop12h 15mAmerican Airlines
Deal found 9/11$497
This American Airlines deal was found by Cheapflights users on 9/10. 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.
lun. 9/296:45 pmPHL - LHR
1 stop10h 20mAmerican Airlines
jue. 10/98:55 amLHR - PHL
1 stop12h 55mAmerican Airlines
Deal found 9/10$498
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
lun. 10/135:20 amPHL - LGW
1 stop23h 40mMultiple Airlines
mié. 10/221:00 pmLGW - PHL
2 stops26h 11mMultiple Airlines
Deal found 9/11$498
This Air Canada deal was found by Cheapflights users on 9/10. 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.
vie. 11/73:30 pmPHL - LHR
2 stops14h 50mMultiple Airlines
dom. 11/96:50 amLHR - PHL
2 stops12h 57mMultiple Airlines
Deal found 9/10$499
This Flightnetwork deal was found by Cheapflights users on 9/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/224:50 pmPHL - LHR
1 stop12h 10mAir Canada
mié. 10/19:30 amLHR - PHL
1 stop17h 08mAir Canada
Deal found 9/11$500
This American Airlines deal was found by Cheapflights users on 9/11. 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.
mié. 9/2410:15 pmPHL - LHR
Nonstop7h 05mAmerican Airlines
mié. 10/17:55 amLHR - PHL
1 stop11h 00mAmerican Airlines
Deal found 9/11$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 septiembre 11, 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. 12/31

6:00 am-10:50 am

1 stop23h 50m

London Heathrow

mié. 1/14

1:25 pm-2:47 pm

1 stop30h 22m

$509

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

sáb. 11/22

8:00 pm-6:40 am

1 stop29h 40m

London Heathrow

mié. 12/3

11:10 am-3:49 pm

1 stop33h 39m

$516

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

lun. 3/9

7:35 pm-6:35 am

Nonstop7h 00m

London Heathrow

vie. 3/20

1:10 pm-5:15 pm

Nonstop8h 05m

$517

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 10/15

3:25 pm-9:35 am

1 stop13h 10m

London Heathrow

mié. 10/22

2:05 pm-9:38 pm

1 stop12h 33m

$517

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

lun. 3/9

3:30 pm-7:10 am

1 stop11h 40m

London Heathrow

jue. 3/19

1:25 pm-2:47 pm

1 stop29h 22m

$517

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

sáb. 11/8

6:18 pm-6:25 am

1 stop31h 07m

London Heathrow

mié. 11/19

6:20 am-9:38 pm

2 stops20h 18m

$524

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

dom. 1/4

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

mar. 1/13

9:00 am-10:56 pm

2 stops18h 56m

$524

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 10/29

12:23 pm-9:00 am

2 stops16h 37m

London Heathrow

vie. 11/7

8:55 am-9:32 pm

2 stops17h 37m

$529

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 1/14

5:20 pm-8:45 am

1 stop10h 25m

London Heathrow

vie. 1/30

9:40 am-5:16 pm

1 stop12h 36m

$538

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

mié. 10/8

4:50 pm-3:25 pm

2 stops17h 35m

London Luton

mar. 10/14

9:50 pm-3:49 pm

2 stops22h 59m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 septiembre 11, 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 septiembre 11, 2025.

The most flights from PHL to GB0 are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 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 septiembre 11, 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
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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
1,323 reviews
Finnair
7.6
Good
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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
10,000 reviews
Finnair
7.6
Good
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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
1,271 reviews
Finnair
7.6
Good
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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
2,929 reviews
Finnair
7.6
Good
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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
7,361 reviews
Finnair
7.6
Good
1,323 reviews

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.6

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 7h. 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 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 (78%), American Airlines (67%), Finnair( 67%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $436. On average you can expect to pay $1,915. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $470.

  • 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$454Average$713FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$510Average$829FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$516Average$901FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$541Average$824FlexibilityNo cancel feeOn-time67%
FinnairCheapest$562Average$874FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$583Average$962FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$602Average$819FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$872FlexibilityNo cancel feeOn-time76%
DeltaCheapest$623Average$1,138FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$659Average$832FlexibilityNo cancel feeOn-time69%

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