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Cheap flights from the United Kingdom to Philadelphia from £260

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 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
20 11月 — 27 11月1
1 adult
1 adult, Economy

Find flight deals from United Kingdom to Philadelphia

Enter your travel dates to find the best prices.

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 21 10月 2025.

週一 17/1109:00LHR - PHL
2 stops34h 47mAir Canada
週一 24/1109:20PHL - LHR
2 stops30h 15mAir Canada
Deal found 20/10£440
週四 4/1209:20LHR - PHL
1 stop17h 28mJetBlue
週一 8/1206:00PHL - LHR
1 stop19h 55mJetBlue
Deal found 19/10£445
週六 6/1214:00LGW - PHL
2 stops26h 18mMultiple Airlines
週日 14/1214:06PHL - LGW
1 stop14h 54mMultiple Airlines
Deal found 18/10£446
週一 24/1113:25LHR - PHL
1 stop30h 22mAir Canada
週一 1/1209:20PHL - LHR
2 stops16h 50mAir Canada
Deal found 20/10£449
週二 4/1109:20LHR - PHL
1 stop16h 20mJetBlue
週一 10/1109:22PHL - LHR
1 stop16h 33mJetBlue
Deal found 20/10£451
週二 18/1112:20LHR - PHL
2 stops25h 17mIcelandair
週四 27/1106:00PHL - LHR
1 stop19h 55mIcelandair
Deal found 20/10£454
週四 4/1208:45LBA - PHL
1 stop12h 15mAer Lingus
週四 11/1217:30PHL - LBA
1 stop21h 00mAer Lingus
Deal found 20/10£455
週一 17/1109:00LHR - PHL
2 stops34h 47mAir Canada
週日 23/1116:35PHL - LHR
2 stops33h 35mAir Canada
Deal found 19/10£456
週一 3/1109:20LHR - PHL
1 stop28h 17mIcelandair
週二 11/1106:00PHL - LHR
2 stops34h 40mIcelandair
Deal found 20/10£457
週一 3/1114:00LGW - PHL
1 stop13h 47mMultiple Airlines
週一 10/1119:04PHL - LGW
2 stops29h 56mMultiple Airlines
Deal found 20/10£460
週六 8/1109:20LHR - PHL
1 stop16h 20mJetBlue
週三 12/1116:52PHL - LHR
1 stop9h 03mJetBlue
Deal found 20/10£460
週一 24/1109:40LGW - PHL
1 stop11h 20mMultiple Airlines
週一 1/1217:30PHL - LGW
2 stops19h 20mMultiple Airlines
Deal found 21/10£471

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 21 10月 2025.

Round-trip from

£406

One-way from

£260

Popular in

December

Cheapest in

February

Average price

£548

Good round-trip deal

£527 or less

Good one-way deal

£381 or less
Aer Lingus
  • Aer Lingus
  • 5/11-23/11
  • 2 total stops
  • 23h 00m total
  • United Kingdom to Philadelphia
Search Deals
20/11
  • 20/11
  • 2 total stops
  • 29h 49m total
  • United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return 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

 
Customise 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 858,174 searches. Data last updated 21 10月 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

週二 25/11

08:30-16:05

1 stop12h 35m

Philadelphia

週一 1/12

09:20-20:35

2 stops30h 15m

£454

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

週二 2/12

07:30-16:05

1 stop13h 35m

Philadelphia

週二 9/12

09:20-20:35

2 stops30h 15m

£454

LeedsPhiladelphia

LBA - PHL

LBAPHL

Leeds/Bradford

週四 4/12

08:45-16:00

1 stop12h 15m

Philadelphia

週四 11/12

17:30-19:30

1 stop21h 00m

£455

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

週二 2/12

09:20-15:37

1 stop11h 17m

Philadelphia

週二 9/12

10:24-06:55

1 stop15h 31m

£463

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

週四 5/3

09:20-18:31

1 stop14h 11m

Philadelphia

週一 9/3

16:48-06:55

1 stop10h 07m

£474

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

週四 4/12

07:30-16:05

1 stop13h 35m

Philadelphia

週四 11/12

16:35-20:35

2 stops23h 00m

£484

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

週四 4/12

07:30-16:05

1 stop13h 35m

Philadelphia

週一 8/12

09:20-20:35

2 stops30h 15m

£484

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

週四 6/11

14:00-23:53

1 stop14h 53m

Philadelphia

週日 16/11

18:24-06:00

2 stops54h 36m

£486

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

週四 6/11

14:00-23:53

1 stop14h 53m

Philadelphia

週六 8/11

18:26-06:00

2 stops30h 34m

£494

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

週三 3/12

08:15-16:00

1 stop12h 45m

Philadelphia

週三 10/12

17:30-08:40

1 stop10h 10m

£496

Flights are sorted by cheapest return flights first.

Deals found on 19/10

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 return 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, August is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £97). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of £320). 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 21 10月 2025.

One of the essential ways to save on airfare from United Kingdom to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 11% on airfare.

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

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

Travellers seeking maximum savings on their United Kingdom to Philadelphia flight should consider departing on Saturday at midday when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 21 10月 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 21 10月 2025.
See what other customers who have flown with Finnair, United Airlines, andAer Lingus from the United Kingdom to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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
1,333 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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.
United Airlines
7.4
Good
8,988 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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
1,349 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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
2,996 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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
7,464 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

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?

    Located just 7.0 mi from the city center, Philadelphia (PHL) is the airport most travelers will use when flying to Philadelphia from United Kingdom.

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

    There are many flights that can get you from United Kingdom to Philadelphia in 11h 17m. Fly via United Airlines, Aer Lingus, or JetBlue to get the fastest option. Airlines will cover a distance of 3533 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £368. However, be on the lookout for offers from Finnair and TAP AIR PORTUGAL, as they are both options that can get you from United Kingdom to Philadelphia for a low price.

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

    While some choose either London Gatwick - Philadelphia or London City - Philadelphia, London Heathrow - Philadelphia is the most popular route from United Kingdom to Philadelphia.

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

    The top 3 most reliable airlines when flying from United Kingdom to Philadelphia are Malaysia Airlines (83%), Iberia (80%) and Finnair (78%).

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

    While on average a flight from United Kingdom to Philadelphia is generally £730, our data shows the cheapest flight currently is £356. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £415 for that flight.

  • 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 holiday 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, August is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £97). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of £320). 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 United Kingdom to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Philadelphia

Discover the top 10 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 858,174 searches. Data last updated 21 10月 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£302Average£517FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£304Average£635FlexibilityNo cancel feeOn-time75%
Search KLM flights
IcelandairCheapest£335Average£473FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£338Average£472FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
JetBlueCheapest£358Average£568FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
British AirwaysCheapest£400Average£586FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£412Average£547FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£445Average£683FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£446Average£595FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£450Average£609FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Philadelphia?

When you search for this flight from United Kingdom to Philadelphia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Philadelphia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Philadelphia.

Can Cheapflights find flights from United Kingdom to Philadelphia with no change fees?

Yes! Cheapflights helps users easily find flights from United Kingdom to Philadelphia with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Philadelphia become cheaper?

Of course! You can now track prices for flights from United Kingdom to Philadelphia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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