Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to Philadelphia from £276

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
30 Aug — 6 Sep1
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 31 July 2026.

Tue 15/908:10
BHX
-
PHL
1 stop15h 45m
Aer Lingus
Tue 29/920:25
PHL
-
BHX
1 stop10h 25m
Aer Lingus
Deal found 28/7£489
Tue 1/911:30
EDI
-
PHL
1 stop25h 52m
JetBlue
Tue 29/915:57
PHL
-
EDI
1 stop13h 03m
JetBlue
Deal found 30/7£510
Wed 2/908:30
BHX
-
PHL
1 stop15h 25m
Multiple Airlines
Wed 9/920:25
PHL
-
BHX
1 stop19h 40m
Multiple Airlines
Deal found 30/7£516
Wed 2/911:30
EDI
-
PHL
1 stop13h 31m
JetBlue
Sun 6/909:12
PHL
-
EDI
1 stop19h 48m
JetBlue
Deal found 29/7£521
Tue 22/912:20
BHX
-
PHL
1 stop11h 35m
Aer Lingus
Tue 29/920:25
PHL
-
BHX
1 stop14h 40m
Aer Lingus
Deal found 28/7£530
Fri 4/911:30
EDI
-
PHL
1 stop13h 31m
JetBlue
Mon 7/909:23
PHL
-
EDI
1 stop19h 37m
JetBlue
Deal found 26/7£530
Tue 1/911:10
EDI
-
PHL
1 stop12h 45m
Aer Lingus
Tue 8/920:25
PHL
-
EDI
1 stop9h 15m
Aer Lingus
Deal found 27/7£534
Mon 31/809:40
EDI
-
PHL
1 stop14h 15m
Aer Lingus
Tue 8/920:25
PHL
-
EDI
1 stop18h 25m
Aer Lingus
Deal found 29/7£543
Fri 11/907:35
EDI
-
PHL
1 stop16h 20m
Multiple Airlines
Fri 18/920:25
PHL
-
EDI
1 stop14h 10m
Multiple Airlines
Deal found 28/7£550
Tue 15/919:15
BHX
-
PHL
2 stops32h 16m
Scandinavian Airlines
Tue 29/913:24
PHL
-
BHX
2 stops24h 11m
Scandinavian Airlines
Deal found 26/7£556
Wed 2/912:00
GLA
-
PHL
1 stop11h 55m
Aer Lingus
Sun 6/920:25
PHL
-
GLA
1 stop10h 05m
Aer Lingus
Deal found 29/7£559
Sat 12/919:10
EDI
-
PHL
2 stops34h 30m
Scandinavian Airlines
Sat 19/915:54
PHL
-
EDI
2 stops21h 31m
Scandinavian Airlines
Deal found 29/7£563

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 31 July 2026.

Round-trip from

£489

One-way from

£276

Popular in

July

Cheapest in

September

Average price

£789

Good round-trip deal

£641 or less

Good one-way deal

£419 or less
Aer Lingus
  • Aer Lingus
  • 15/9-29/9
  • 2 total stops
  • 26h 10m total
  • United Kingdom to Philadelphia
Search Deals
10/9
  • 10/9
  • 2 total stops
  • 40h 40m total
  • United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£76 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 31 July 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

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Wed 30/9

11:30-17:48

1 stop11h 18m

Philadelphia

Sun 4/10

18:48-10:00

1 stop10h 12m

£574

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Wed 13/1

19:10-00:51

2 stops34h 41m

Philadelphia

Sun 17/1

06:00-18:30

2 stops31h 30m

£589

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Thu 3/9

19:15-01:19

2 stops35h 04m

Philadelphia

Tue 13/10

14:32-18:35

2 stops23h 03m

£589

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Wed 9/9

19:15-00:40

2 stops34h 25m

Philadelphia

Thu 15/10

12:25-18:35

2 stops25h 10m

£589

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Thu 3/9

19:15-01:19

2 stops35h 04m

Philadelphia

Mon 12/10

15:40-18:35

2 stops21h 55m

£589

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 4/11

08:05-17:40

1 stop14h 35m

Philadelphia

Sun 8/11

17:30-07:50

1 stop9h 20m

£608

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 11/11

07:05-00:55

3 stops22h 50m

Philadelphia

Wed 18/11

15:33-16:00

2 stops19h 27m

£618

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 5/10

09:30-16:05

1 stop11h 35m

Philadelphia

Mon 12/10

15:08-06:55

1 stop10h 47m

£621

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Tue 15/9

12:20-18:55

1 stop11h 35m

Philadelphia

Tue 29/9

20:25-16:05

1 stop14h 40m

£622

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 25/8

12:45-16:05

2 stops32h 20m

Philadelphia

Tue 1/9

15:25-11:05

2 stops14h 40m

£636

Flights are sorted by cheapest return flights first.

Deals found on 27/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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

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

Currently, November is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £574). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of £819). 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 31 July 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 31 July 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 168 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 Thursday 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, American Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.

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 80 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.

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 31 July 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
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,426 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Aer Lingus
7.3
Good
1,683 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
American Airlines
7.1
Good
11,846 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
JetBlue
7.1
Good
3,028 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,129 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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 18m. Fly via Aer Lingus, Scandinavian Airlines, or JetBlue to get the fastest option. Airlines will cover a distance of 3336 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 Finnair, with whom users have recently found tickets for as low as £326. However, be on the lookout for offers from JetBlue and Aer Lingus, 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 (88%), American Airlines (81%) and Finnair (81%).

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

    While on average a flight from United Kingdom to Philadelphia is generally £2,053, our data shows the cheapest flight currently is £372. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £478 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, November is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £574). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of £819). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Stansted to John F Kennedy Intl flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Luton to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Stansted to Newark flights
London City to Newark flights
Luton to Newark flights
Manchester to John F Kennedy Intl flights
Heathrow to Dulles Intl flights
Manchester to Newark flights
Manchester to LaGuardia flights
Heathrow to Philadelphia flights
Edinburgh to Newark flights
Gatwick to Dulles Intl flights
Edinburgh to John F Kennedy Intl flights
Stansted to Dulles Intl flights
London City to Dulles Intl flights
Heathrow to Reagan-National flights
Stansted to LaGuardia flights
Gatwick to Reagan-National flights
Luton to Dulles Intl flights
Glasgow Intl to Newark flights
Birmingham to John F Kennedy Intl flights
Gatwick to Philadelphia flights
Luton to LaGuardia flights
Birmingham to Newark flights
Edinburgh to LaGuardia flights
London City to Philadelphia flights
Heathrow to Pittsburgh flights
Birmingham to LaGuardia flights
Glasgow Intl to John F Kennedy Intl flights
Stansted to Philadelphia flights
Luton to Philadelphia flights
Edinburgh to Dulles Intl flights
Manchester to Dulles Intl flights
Glasgow Intl to LaGuardia flights
Edinburgh to Philadelphia flights
Dublin to John F Kennedy Intl flights
Gatwick to Pittsburgh flights
Southend to John F Kennedy Intl flights
Newcastle upon Tyne to John F Kennedy Intl flights
Liverpool to John F Kennedy Intl flights
Bristol to John F Kennedy Intl flights
Dublin to LaGuardia flights
Newcastle upon Tyne to Newark flights

Top 9 airlines flying from United Kingdom to Philadelphia

Discover the top 9 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 31 July 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£335Average£686FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£419Average£611FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£435Average£508FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£445Average£639FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£454Average£680FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£464Average£679FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£465Average£742FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest£469Average£691FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£475Average£772FlexibilityNo cancel feeOn-time77%
Search Iberia 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.