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$349+ Cheap flights from the United Kingdom to Philadelphia (PHL)

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Find flight deals from United Kingdom to Philadelphia

Cheapest flights from United Kingdom to Philadelphia
Explore the most affordable flight options available from United Kingdom to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:15 amBHX - PHL
1 stop12h 45mAer Lingus
Sun 11/165:30 pmPHL - BHX
1 stop9h 15mAer Lingus
Deal found 10/12$536
This Flightnetwork deal was found by Cheapflights users on 10/11. 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.
Tue 11/256:30 amLHR - PHL
1 stop14h 35mMultiple Airlines
Tue 12/29:20 amPHL - LHR
2 stops30h 15mMultiple Airlines
Deal found 10/11$590
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:25 pmLHR - PHL
1 stop30h 22mAir Canada
Wed 12/39:20 amPHL - LHR
2 stops16h 50mAir Canada
Deal found 10/12$591
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:25 pmLHR - PHL
1 stop30h 22mAir Canada
Mon 11/179:20 amPHL - LHR
2 stops16h 50mAir Canada
Deal found 10/12$592
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:20 amLHR - PHL
1 stop16h 20mJetBlue
Mon 12/84:32 pmPHL - LHR
1 stop9h 23mJetBlue
Deal found 10/12$593
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:20 amLHR - PHL
1 stop11h 37mJetBlue
Mon 11/176:00 amPHL - LHR
1 stop19h 55mJetBlue
Deal found 10/13$594
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:20 amLHR - PHL
1 stop11h 17mJetBlue
Mon 12/86:00 amPHL - LHR
1 stop19h 55mJetBlue
Deal found 10/13$595
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/212:00 pmLGW - PHL
1 stop22h 32mMultiple Airlines
Sat 12/612:42 pmPHL - LGW
1 stop16h 23mMultiple Airlines
Deal found 10/12$595
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:00 pmLGW - PHL
1 stop16h 24mMultiple Airlines
Sat 12/612:42 pmPHL - LGW
1 stop16h 23mMultiple Airlines
Deal found 10/12$599
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:00 amLHR - PHL
2 stops30h 24mUnited Airlines
Sun 11/239:20 amPHL - LHR
2 stops30h 15mUnited Airlines
Deal found 10/11$600
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:00 pmLGW - PHL
1 stop16h 24mMultiple Airlines
Thu 12/45:30 amPHL - LGW
2 stops23h 30mMultiple Airlines
Deal found 10/12$602
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/212:00 pmLGW - PHL
1 stop22h 32mMultiple Airlines
Thu 12/412:32 pmPHL - LGW
1 stop16h 28mMultiple Airlines
Deal found 10/12$610

Cheap flight deals from United Kingdom to Philadelphia

Keep the following information in mind while searching for United Kingdom to Philadelphia flight deals. Data was last updated October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$536
(Kiwi.com)

One-way from

$349
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$733

Good round-trip deal

$708 or less

Good one-way deal

$570 or less
Provider with most accurate pricing for London (LON)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Philadelphia flights.
Search Deals
From United Kingdom to Philadelphia
Search Deals
One-way flight from United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Philadelphia.
Search Deals
Price to beat on a one-way flight from United Kingdom to Philadelphia.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom to Philadelphia 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 October 13, 2025.
Use the filters below to find and compare flights from the United Kingdom to Philadelphia that are best for you.

Fly from

United Kingdom

Fly to

Philadelphia

Route

Depart

Return

Price

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/12

9:20 am-9:24 pm

1 stop17h 04m

Philadelphia

Thu 1/29

1:30 pm-6:55 am

1 stop12h 25m

$593

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 1/13

9:20 am-9:24 pm

1 stop17h 04m

Philadelphia

Thu 1/29

1:30 pm-6:55 am

1 stop12h 25m

$593

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 11/10

9:20 am-8:37 am

1 stop28h 17m

Philadelphia

Mon 11/17

4:52 pm-6:55 am

1 stop9h 03m

$594

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 11/26

6:35 am-10:46 pm

2 stops21h 11m

Philadelphia

Mon 12/1

4:35 pm-8:35 pm

2 stops23h 00m

$606

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 11/10

10:30 am-4:05 pm

1 stop34h 35m

Philadelphia

Mon 11/17

4:35 pm-8:35 pm

2 stops23h 00m

$619

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 11/26

1:25 pm-2:47 pm

1 stop30h 22m

Philadelphia

Mon 12/1

9:20 am-7:10 am

2 stops16h 50m

$631

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 3/5

9:20 am-3:52 pm

1 stop11h 32m

Philadelphia

Mon 3/9

4:48 pm-6:55 am

1 stop10h 07m

$631

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 1/16

9:20 am-9:24 pm

1 stop17h 04m

Philadelphia

Thu 1/29

1:30 pm-6:55 am

1 stop12h 25m

$633

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 11/22

7:30 am-4:35 pm

1 stop14h 05m

Philadelphia

Sun 11/30

9:20 am-8:35 pm

2 stops30h 15m

$640

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 11/22

9:30 am-4:35 pm

1 stop12h 05m

Philadelphia

Sun 11/30

4:35 pm-8:35 pm

2 stops23h 00m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from United Kingdom 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 the United Kingdom to Philadelphia

What is the cheapest month to book a flight from United Kingdom to Philadelphia?

Currently, July is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of $237). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of $429). 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 GB to PHL?

Find hourly flight availability from United Kingdom to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 13, 2025.

It’s typically best to fly out from United Kingdom to Philadelphia in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from United Kingdom to Philadelphia

Explore weekly flight availability from United Kingdom to Philadelphia. 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 October 13, 2025.

The most flights from GB0 to PHL 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 Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated October 13, 2025.
Get a feel of what it's like to fly with Finnair, American Airlines, and Aer Lingus from the United Kingdom to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,332 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
11,039 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Aer Lingus
7.2
Good
1,336 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
2,988 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,454 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Philadelphia. 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 into for flights to Philadelphia from United Kingdom?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from United Kingdom to Philadelphia.

  • How long is the flight from United Kingdom to Philadelphia?

    A quick flight from United Kingdom to Philadelphia can take about 11h 25m. JetBlue provides one of the quickest options available for as low as $690. The distance from United Kingdom to Philadelphia is about 3336 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Philadelphia one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $492. JetBlue flights start at $494 while deals on British Airways start at $494 one-way.

  • What are the most popular routes from United Kingdom to Philadelphia?

    The most popular flight routes from United Kingdom to Philadelphia are London Heathrow - Philadelphia, London Gatwick - Philadelphia and London City - Philadelphia.

  • What are the most reliable airlines from United Kingdom to Philadelphia?

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Philadelphia consider choosing Malaysia Airlines (78%), Iberia (75%) or Finnair (74%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from United Kingdom to Philadelphia is $440. On average you can expect to pay $1,285. The most popular route, (London Heathrow - Philadelphia), can usually be booked for $554.

  • Can I find deals for flights from United Kingdom to Philadelphia that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Philadelphia.

  • Can I find deals for business class flights from United Kingdom to Philadelphia?

    Yes. Cheapflights offers flight deals from United Kingdom to Philadelphia 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 United Kingdom to Philadelphia?

    Currently, July is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of $237). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of $429). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Vineland
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for United Kingdom to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from United Kingdom to Philadelphia

Discover the top 5 airlines that operate flights from United Kingdom to Philadelphia. 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$559Average$826FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$597Average$814FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$609Average$781FlexibilityNo cancel feeOn-time70%
FinnairCheapest$642Average$767FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$670Average$1,016FlexibilityNo cancel feeOn-timeN/A

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