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Cheap flights from the United Kingdom to Philadelphia from £268

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 17 April 2026.

Sun 3/507:55
EDI
-
PHL
1 stop16h 00m
Multiple Airlines
Sat 9/520:25
PHL
-
EDI
1 stop11h 40m
Multiple Airlines
Deal found 13/4£470
Thu 4/611:30
EDI
-
PHL
1 stop12h 22m
JetBlue
Fri 5/619:47
PHL
-
EDI
1 stop9h 13m
JetBlue
Deal found 16/4£494
Thu 7/508:45
LBA
-
PHL
1 stop15h 10m
Aer Lingus
Tue 2/620:25
PHL
-
LBA
1 stop19h 10m
Aer Lingus
Deal found 17/4£497
Thu 4/611:30
EDI
-
PHL
1 stop14h 51m
JetBlue
Mon 8/619:45
PHL
-
EDI
1 stop9h 15m
JetBlue
Deal found 14/4£532
Wed 20/511:30
EDI
-
PHL
1 stop11h 08m
JetBlue
Tue 26/509:21
PHL
-
EDI
1 stop19h 39m
JetBlue
Deal found 16/4£538
Sat 23/511:30
EDI
-
PHL
1 stop12h 22m
JetBlue
Wed 3/619:47
PHL
-
EDI
1 stop9h 13m
JetBlue
Deal found 16/4£548
Tue 9/606:15
EDI
-
PHL
1 stop17h 40m
Multiple Airlines
Thu 18/620:25
PHL
-
EDI
1 stop13h 40m
Multiple Airlines
Deal found 16/4£556
Thu 21/513:45
LHR
-
PHL
Nonstop7h 50m
British Airways
Sun 24/518:40
PHL
-
LHR
Nonstop7h 10m
British Airways
Deal found 13/4£562
Tue 2/612:20
LGW
-
PHL
1 stop25h 11m
JetBlue
Wed 1/708:28
PHL
-
LGW
1 stop20h 07m
JetBlue
Deal found 12/4£562
Wed 20/513:45
LHR
-
PHL
Nonstop7h 50m
British Airways
Fri 29/518:40
PHL
-
LHR
Nonstop7h 10m
British Airways
Deal found 13/4£564
Wed 20/513:45
LHR
-
PHL
Nonstop7h 50m
British Airways
Tue 26/518:40
PHL
-
LHR
Nonstop7h 10m
British Airways
Deal found 13/4£565
Wed 1/708:40
LHR
-
PHL
1 stop16h 20m
JetBlue
Wed 15/708:28
PHL
-
LHR
1 stop17h 02m
JetBlue
Deal found 13/4£568

Find 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 17 April 2026.

Round-trip from

£470

One-way from

£268

Popular in

December

Cheapest in

September

Average price

£622

Good round-trip deal

£603 or less

Good one-way deal

£468 or less
3/5-9/5
  • 3/5-9/5
  • 2 total stops
  • 27h 40m total
  • United Kingdom to Philadelphia
Search Deals
1/6
  • 1/6
  • 2 total stops
  • 31h 44m total
  • United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 17 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 18/5

20:50-16:05

2 stops24h 15m

Philadelphia

Mon 25/5

17:40-18:15

2 stops19h 35m

£598

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 4/5

09:00-00:59

2 stops20h 59m

Philadelphia

Mon 18/5

06:00-06:30

2 stops19h 30m

£607

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 21/9

12:05-09:50

2 stops26h 45m

Philadelphia

Mon 28/9

10:45-09:45

2 stops18h 00m

£620

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 11/5

09:15-12:10

Nonstop7h 55m

Philadelphia

Mon 18/5

18:30-10:20

1 stop10h 50m

£642

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 29/4

07:30-16:05

1 stop13h 35m

Philadelphia

Sun 10/5

20:30-06:45

1 stop29h 15m

£651

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 18/5

07:30-16:05

1 stop13h 35m

Philadelphia

Mon 25/5

15:10-06:55

1 stop10h 45m

£651

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Tue 12/5

09:15-16:05

1 stop11h 50m

Philadelphia

Tue 19/5

17:40-17:55

1 stop19h 15m

£667

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Tue 12/5

09:15-21:44

2 stops17h 29m

Philadelphia

Thu 6/8

17:40-12:35

2 stops13h 55m

£669

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Thu 10/9

08:00-15:30

1 stop12h 30m

Philadelphia

Thu 24/9

18:50-10:20

1 stop10h 30m

£684

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 17/9

18:35-16:05

2 stops26h 30m

Philadelphia

Sat 26/9

11:39-08:25

2 stops15h 46m

£685

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £266). Flying from United Kingdom to Philadelphia in April is currently the most expensive (average of £1,008). 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 17 April 2026.

When flying from United Kingdom to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 17 April 2026.

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).

How often are flights from the United Kingdom to Philadelphia delayed?

About 17% of weekly flights between United Kingdom and Philadelphia have experienced delays in the past year, with the average delay time being 175 minutes.

What is the most punctual flight time for the United Kingdom to Philadelphia flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Philadelphia flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 16% of flights being delayed.

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 17 April 2026.
See what other customers who have flown with Finnair,Aer Lingus, andAmerican Airlines 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
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,389 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Aer Lingus
7.3
Good
1,512 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,595 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Iberia
7.0
Good
3,182 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,891 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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 7h 55m. Fly via United Airlines, TAP AIR PORTUGAL, or British Airways 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 JetBlue, with whom users have recently found tickets for as low as £321. However, be on the lookout for offers from Finnair and British Airways, 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 (79%), American Airlines (73%) and Finnair (73%).

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

    While on average a flight from United Kingdom to Philadelphia is generally £1,032, our data shows the cheapest flight currently is £439. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £520 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, February is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £266). Flying from United Kingdom to Philadelphia in April is currently the most expensive (average of £1,008). 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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Southend to John F Kennedy Intl flights
Edinburgh to Philadelphia flights
Stansted to Philadelphia flights
Dublin to John F Kennedy Intl flights
Luton to Philadelphia flights
Birmingham to LaGuardia flights
Manchester to Dulles Intl flights
Gatwick to Pittsburgh flights
Dublin to LaGuardia flights
London City to Pittsburgh flights
Stansted to Pittsburgh flights
Leeds to John F Kennedy Intl flights

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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£300Average£525FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£344Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£408Average£548FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£415Average£555FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
British AirwaysCheapest£446Average£628FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£452Average£660FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£456Average£620FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£459Average£658FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£485Average£588FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest£545Average£582FlexibilityNo cancel feeOn-time75%
Search KLM 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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