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$176+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
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 octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$524
(Kiwi.com)

One-way from

$176
(Norse)

Popular in

June

Cheapest in

September

Average price

$680

Good round-trip deal

$673 or less

Good one-way deal

$412 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. 18% potential increase in price ($184 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 October 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 octubre 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
mar. 12/25:30 pmPHL - LTN
1 stop11h 15mMultiple Airlines
mar. 12/99:00 amLTN - PHL
1 stop12h 00mMultiple Airlines
Deal found 10/13$540
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
dom. 11/95:30 pmPHL - STN
1 stop14h 50mMultiple Airlines
mar. 11/188:30 amSTN - PHL
1 stop12h 30mMultiple Airlines
Deal found 10/14$540
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
dom. 11/95:30 pmPHL - LGW
1 stop9h 55mMultiple Airlines
mar. 11/188:50 amLGW - PHL
1 stop12h 10mMultiple Airlines
Deal found 10/14$540
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
mié. 11/125:30 pmPHL - LTN
1 stop10h 05mMultiple Airlines
mié. 11/196:50 amLTN - PHL
1 stop14h 10mMultiple Airlines
Deal found 10/14$542
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
mié. 11/125:30 pmPHL - STN
1 stop14h 50mMultiple Airlines
mié. 11/196:30 amSTN - PHL
1 stop14h 30mMultiple Airlines
Deal found 10/14$542
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
dom. 11/95:30 pmPHL - LTN
1 stop10h 25mMultiple Airlines
mar. 11/189:00 amLTN - PHL
1 stop12h 00mMultiple Airlines
Deal found 10/14$543
This Mytrip deal was found by Cheapflights users on 10/13. 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.
lun. 11/103:30 pmPHL - LGW
3 stops24h 30mMultiple Airlines
lun. 11/179:30 pmLGW - PHL
3 stops22h 17mMultiple Airlines
Deal found 10/13$547
This Mytrip deal was found by Cheapflights users on 10/13. 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.
lun. 11/103:30 pmPHL - STN
3 stops24h 50mMultiple Airlines
lun. 11/179:45 pmSTN - PHL
3 stops22h 02mMultiple Airlines
Deal found 10/13$549
This Mytrip deal was found by Cheapflights users on 10/12. 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. 12/33:30 pmPHL - LGW
3 stops24h 35mMultiple Airlines
lun. 12/85:55 pmLGW - PHL
3 stops25h 52mMultiple Airlines
Deal found 10/12$555
This Mytrip deal was found by Cheapflights users on 10/12. 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.
mar. 11/189:20 amPHL - STN
2 stops19h 30mMultiple Airlines
mar. 11/256:30 amSTN - PHL
3 stops21h 16mMultiple Airlines
Deal found 10/12$556
This Mytrip deal was found by Cheapflights users on 10/12. 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. 12/33:30 pmPHL - STN
3 stops26h 20mMultiple Airlines
lun. 12/85:00 pmSTN - PHL
3 stops26h 47mMultiple Airlines
Deal found 10/12$561
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
jue. 11/279:48 amPHL - LGW
2 stops43h 22mMultiple Airlines
sáb. 12/62:00 pmLGW - PHL
1 stop14h 34mMultiple Airlines
Deal found 10/14$563

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 octubre 14, 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 - LTN

PHLLTN

Philadelphia

mar. 12/2

5:30 pm-9:45 am

1 stop11h 15m

London Luton

mar. 12/9

9:00 am-4:00 pm

1 stop12h 00m

$540

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

mié. 11/26

5:30 pm-7:50 am

1 stop9h 20m

London Stansted

mié. 12/3

6:30 am-4:00 pm

1 stop14h 30m

$540

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

dom. 11/9

5:30 pm-8:55 am

1 stop10h 25m

London Luton

mar. 11/18

9:00 am-4:00 pm

1 stop12h 00m

$543

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

mar. 11/18

5:30 pm-9:50 am

1 stop11h 20m

London Stansted

mar. 11/25

8:30 am-4:00 pm

1 stop12h 30m

$592

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

vie. 11/14

4:35 pm-2:50 pm

2 stops17h 15m

London Stansted

mar. 11/18

9:45 pm-3:51 pm

2 stops23h 06m

$593

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

mar. 10/28

6:40 pm-12:20 pm

1 stop13h 40m

Manchester

jue. 11/6

6:00 am-4:05 pm

1 stop15h 05m

$595

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

vie. 11/7

4:35 pm-11:35 am

2 stops14h 00m

London Stansted

lun. 11/10

6:45 pm-2:47 pm

3 stops25h 02m

$599

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

dom. 12/7

6:00 am-4:00 pm

2 stops29h 00m

London Heathrow

sáb. 12/13

6:40 am-8:17 pm

2 stops18h 37m

$601

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

mié. 12/3

6:35 pm-6:15 pm

1 stop18h 40m

Glasgow Intl

lun. 12/8

8:25 pm-4:15 pm

1 stop24h 50m

$607

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

jue. 2/19

6:15 am-4:00 pm

2 stops28h 45m

London Heathrow

lun. 2/23

9:05 pm-9:17 pm

3 stops29h 12m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

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, 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 octubre 14, 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 octubre 14, 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 octubre 14, 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
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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
1,332 reviews
Finnair
7.6
Good
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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
11,043 reviews
Finnair
7.6
Good
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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
1,337 reviews
Finnair
7.6
Good
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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
2,990 reviews
Finnair
7.6
Good
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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
7,457 reviews
Finnair
7.6
Good
1,332 reviews

Entertainment

6.9

Boarding

7.6

Overall

7.6

Food

6.7

Crew

8.1

Comfort

7.4

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 13h 40m. The distance between Philadelphia and United Kingdom is about 3422 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 JetBlue ($289), SWISS ($409), and Lufthansa ($420).

  • 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 (83%), Iberia (79%), Finnair( 79%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $410. On average you can expect to pay $1,779. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $579.

  • 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 octubre 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$507Average$714FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$508Average$898FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$510Average$830FlexibilityNo cancel feeOn-time70%
FinnairCheapest$515Average$862FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$523Average$933FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$541Average$824FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$560Average$826FlexibilityNo cancel feeOn-time69%
IberiaCheapest$590Average$823FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$890FlexibilityNo cancel feeOn-time76%
DeltaCheapest$784Average$1,138FlexibilityNo cancel feeOn-timeN/A

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