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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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
29 May — 5 Jun1
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 29 April 2026.

Tue 9/607:30
MAN
-
PHL
1 stop16h 25m
Multiple Airlines
Tue 16/620:25
PHL
-
MAN
1 stop9h 40m
Multiple Airlines
Deal found 25/4£462
Mon 8/607:45
MAN
-
PHL
1 stop16h 10m
Multiple Airlines
Mon 15/620:25
PHL
-
MAN
1 stop14h 05m
Multiple Airlines
Deal found 24/4£463
Thu 18/606:00
MAN
-
PHL
1 stop17h 55m
Multiple Airlines
Sun 28/620:25
PHL
-
MAN
1 stop14h 15m
Multiple Airlines
Deal found 29/4£473
Thu 25/609:05
GLA
-
PHL
1 stop14h 50m
Multiple Airlines
Sun 28/620:25
PHL
-
GLA
1 stop11h 45m
Multiple Airlines
Deal found 28/4£478
Mon 8/609:25
GLA
-
PHL
1 stop14h 30m
Multiple Airlines
Mon 15/620:25
PHL
-
GLA
1 stop14h 15m
Multiple Airlines
Deal found 24/4£482
Thu 4/608:10
BHX
-
PHL
1 stop15h 45m
Aer Lingus
Tue 30/620:25
PHL
-
BHX
1 stop16h 45m
Aer Lingus
Deal found 27/4£493
Tue 8/911:30
EDI
-
PHL
1 stop13h 30m
JetBlue
Tue 29/906:00
PHL
-
EDI
1 stop23h 00m
JetBlue
Deal found 26/4£512
Tue 9/606:15
EDI
-
PHL
1 stop17h 40m
Multiple Airlines
Tue 16/620:25
PHL
-
EDI
1 stop14h 15m
Multiple Airlines
Deal found 25/4£515
Mon 1/611:30
EDI
-
PHL
1 stop12h 22m
JetBlue
Wed 10/619:45
PHL
-
EDI
1 stop9h 15m
JetBlue
Deal found 27/4£518
Fri 29/511:30
EDI
-
PHL
1 stop26h 01m
JetBlue
Wed 10/609:26
PHL
-
EDI
1 stop19h 34m
JetBlue
Deal found 28/4£549
Thu 28/511:30
EDI
-
PHL
1 stop12h 22m
JetBlue
Mon 1/619:47
PHL
-
EDI
1 stop9h 13m
JetBlue
Deal found 24/4£553
Mon 1/611:30
EDI
-
PHL
1 stop26h 01m
JetBlue
Mon 8/606:00
PHL
-
EDI
1 stop23h 00m
JetBlue
Deal found 26/4£554

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 29 April 2026.

Round-trip from

£462

One-way from

£268

Popular in

December

Cheapest in

September

Average price

£625

Good round-trip deal

£644 or less

Good one-way deal

£480 or less
9/6-16/6
  • 9/6-16/6
  • 2 total stops
  • 26h 05m total
  • United Kingdom to Philadelphia
Search Deals
28/5
  • 28/5
  • 2 total stops
  • 36h 15m total
  • United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£2 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 29 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

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 25/6

09:05-18:55

1 stop14h 50m

Philadelphia

Sun 28/6

20:25-13:10

1 stop11h 45m

£478

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Mon 1/6

11:30-18:52

1 stop12h 22m

Philadelphia

Mon 8/6

06:00-10:00

1 stop23h 00m

£555

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 1/6

18:05-16:05

2 stops27h 00m

Philadelphia

Mon 8/6

17:40-22:50

2 stops24h 10m

£614

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Fri 12/6

12:45-18:55

1 stop11h 10m

Philadelphia

Fri 19/6

20:25-18:10

1 stop16h 45m

£616

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 12/5

13:15-23:45

3 stops39h 30m

Philadelphia

Wed 12/8

07:00-16:30

2 stops28h 30m

£619

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 16/9

08:40-18:04

1 stop14h 24m

Philadelphia

Sun 20/9

15:25-06:30

1 stop10h 05m

£627

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 1/6

13:45-16:05

3 stops31h 20m

Philadelphia

Mon 8/6

15:25-13:45

2 stops17h 20m

£638

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 17/6

09:50-16:00

1 stop11h 10m

Philadelphia

Mon 22/6

18:30-10:20

1 stop10h 50m

£641

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 2/10

10:35-09:50

2 stops28h 15m

Philadelphia

Tue 6/10

10:45-09:45

2 stops18h 00m

£646

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 6/7

07:30-16:05

1 stop13h 35m

Philadelphia

Sun 12/7

19:45-20:40

2 stops19h 55m

£653

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

How far ahead should I book a flight from United Kingdom to Philadelphia?

To ensure you get the cheapest price possible for a flight from United Kingdom to Philadelphia, you should look to book at least 11 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £1,011). 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 29 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 29 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 18% of weekly flights between United Kingdom and Philadelphia have experienced delays in the past year, with the average delay time being 170 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 18% 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 29 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
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,392 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

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
1,536 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

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
11,683 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

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
3,203 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

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
7,937 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Crew

8.2

Overall

7.6

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

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 11h 10m. Fly via JetBlue, Aer Lingus, 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 £322. 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 £1,042, our data shows the cheapest flight currently is £445. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £486 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 £1,011). 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.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
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Gatwick to Newark flights
Gatwick to LaGuardia flights
Luton to John F Kennedy Intl flights
London City to Newark flights
Stansted to Newark flights
Luton to Newark flights
Heathrow to Dulles Intl flights
Manchester to John F Kennedy Intl flights
Stansted to LaGuardia flights
Edinburgh to John F Kennedy Intl flights
Edinburgh to Newark flights
Manchester to Newark flights
Gatwick to Dulles Intl flights
Stansted to Dulles Intl flights
Heathrow to Reagan-National flights
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Gatwick to Reagan-National flights
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Luton to LaGuardia flights
Edinburgh to LaGuardia flights
Luton to Dulles Intl flights
Glasgow Intl to Newark flights
Southend to John F Kennedy Intl flights
Birmingham to John F Kennedy Intl flights
Glasgow Intl to John F Kennedy Intl flights
Gatwick to Philadelphia flights
Birmingham to Newark flights
Heathrow to Pittsburgh flights
London City to Philadelphia flights
Birmingham to LaGuardia flights
Glasgow Intl to LaGuardia flights
Stansted to Philadelphia flights
Manchester to Dulles Intl flights
Luton to Philadelphia flights
Dublin to Newark flights
Edinburgh to Dulles Intl flights
London City to LaGuardia flights
Manchester to Reagan-National flights
Dublin to LaGuardia flights
Birmingham to Dulles Intl flights
Charles de Gaulle to John F Kennedy Intl flights
Manchester to Philadelphia flights
Edinburgh to Philadelphia 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 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£328Average£577FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£409Average£556FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£416Average£557FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£431Average£483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£448Average£632FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£453Average£684FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£457Average£629FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£461Average£657FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£481Average£592FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest£546Average£584FlexibilityNo 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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