How long is the flight from United Kingdom to Philadelphia?

There are many flights that can get you from United Kingdom to Philadelphia in 15h 15m. Fly via Aer Lingus, United Airlines, or Austrian Airlines to get the fastest option. Airlines will cover a distance of 3437 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 Aer Lingus, with whom users have recently found tickets for as low as £360. However, be on the lookout for offers from Delta and British Airways, as they are both options that can get you from United Kingdom to Philadelphia for a low price.

In terms of precipitation, rainfall in Philadelphia ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 cheapest flights from United Kingdom to Philadelphia?

While on average a flight from United Kingdom to Philadelphia is generally £774, our data shows the cheapest flight currently is £464. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £410 for that flight.

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 Aer Lingus (74%), American Airlines (66%) and Finnair (66%).

What are the most popular airlines that fly from United Kingdom to Philadelphia?

Consider American Airlines, Air Canada or Finnair when booking your flight. These represent the most popular airlines when flying from United Kingdom to Philadelphia.

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

Travelers have found it’s best to book a flight 17 days in advance to save up to 43% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 17 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from United Kingdom to Philadelphia 1-2 weeks in advance for as low as £481, or £768 for flights within the next 24 hours.

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

February is one of the best times of the year to fly to Philadelphia from United Kingdom. Prices for February average £543 per person but you can even find prices for as low as £386. The most expensive prices can be found in the month of August. Opting for a February flight can save you 23% on your journey compared to booking in August

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.

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.

£252+ Cheap Flights from the United Kingdom to Philadelphia

Cheap flight deals from United Kingdom to Philadelphia

Round-trip from	£401
One-way from	£252
Popular in	August
Cheapest in	February
Average price	£491
Good round-trip deal	£498 or less
Good one-way deal	£540 or less

Aer Lingus
26/11-1/12
2 total stops
22h 55m total
United Kingdom to Philadelphia

Search Deals

14/12
3 total stops
44h 02m total
United Kingdom to Philadelphia

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£30 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 September 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

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 16 September 2025.

Wed 26/1107:25EDI - PHL

1 stop13h 35mMultiple Airlines

Mon 1/1217:30PHL - EDI

1 stop9h 20mMultiple Airlines

Deal found 15/9£401

Sat 4/1008:45LBA - PHL

1 stop15h 15mAer Lingus

Wed 8/1020:30PHL - LBA

1 stop14h 00mAer Lingus

Deal found 15/9£403

Fri 31/1008:20EDI - PHL

1 stop12h 40mAer Lingus

Fri 7/1117:30PHL - EDI

1 stop13h 00mAer Lingus

Deal found 15/9£430

Fri 28/1113:30LHR - PHL

2 stops14h 26mMultiple Airlines

Wed 3/1213:15PHL - LHR

2 stops12h 55mMultiple Airlines

Deal found 15/9£439

Fri 19/914:00LGW - PHL

1 stop15h 52mMultiple Airlines

Sat 27/909:05PHL - LGW

2 stops19h 55mMultiple Airlines

Deal found 15/9£439

Wed 29/1008:15BHX - PHL

1 stop12h 45mAer Lingus

Wed 5/1117:30PHL - BHX

1 stop9h 15mAer Lingus

Deal found 14/9£440

Thu 16/1008:30LHR - PHL

1 stop12h 30mMultiple Airlines

Thu 23/1015:25PHL - LHR

1 stop13h 10mMultiple Airlines

Deal found 16/9£440

Thu 30/1008:50LGW - PHL

1 stop12h 10mMultiple Airlines

Thu 6/1117:30PHL - LGW

1 stop10h 00mMultiple Airlines

Deal found 15/9£440

Mon 3/1106:30LHR - PHL

1 stop12h 25mBritish Airways

Mon 1/1219:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 15/9£441

Fri 3/1014:00LGW - PHL

2 stops30h 27mMultiple Airlines

Tue 7/1011:34PHL - LGW

1 stop17h 26mMultiple Airlines

Deal found 15/9£442

Mon 24/1109:20LHR - PHL

1 stop17h 37mJetBlue

Sat 6/1216:32PHL - LHR

1 stop9h 23mJetBlue

Deal found 15/9£443

Wed 15/1012:00LHR - PHL

1 stop12h 00mAer Lingus

Wed 22/1020:30PHL - LHR

1 stop9h 40mAer Lingus

Deal found 15/9£444

Best flights from United Kingdom to Philadelphia
Discover carefully curated flight deals from United Kingdom to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Wed 26/1107:25EDI - PHL

1 stop13h 35mMultiple Airlines

Mon 1/1217:30PHL - EDI

1 stop9h 20mMultiple Airlines

Deal found 15/9£401

Sat 4/1008:45LBA - PHL

1 stop15h 15mAer Lingus

Wed 8/1020:30PHL - LBA

1 stop14h 00mAer Lingus

Deal found 15/9£403

Mon 29/907:45LHR - PHL

2 stops16h 12mUnited Airlines

Sat 11/1013:05PHL - LHR

1 stop14h 15mUnited Airlines

Deal found 15/9£441

Thu 5/306:00LHR - PHL

2 stops21h 56mAustrian Airlines

Mon 9/316:35PHL - LHR

2 stops22h 05mAustrian Airlines

Deal found 14/9£450

Wed 11/310:05LHR - PHL

Nonstop8h 05mBritish Airways

Mon 23/320:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 15/9£452

Mon 3/1106:00LHR - PHL

2 stops20h 21mSWISS

Mon 10/1112:40PHL - LHR

2 stops17h 35mSWISS

Deal found 15/9£455

Thu 19/211:20LGW - PHL

2 stops32h 17mAmerican Airlines

Tue 24/215:44PHL - LGW

2 stops36h 16mAmerican Airlines

Deal found 14/9£469

Fri 21/1116:40LGW - PHL

2 stops35h 47mTAP AIR PORTUGAL

Tue 2/1210:24PHL - LGW

2 stops18h 26mTAP AIR PORTUGAL

Deal found 15/9£516

Wed 19/1111:45EDI - PHL

2 stops16h 21mDelta

Wed 10/1213:23PHL - EDI

2 stops16h 17mDelta

Deal found 14/9£520

Mon 13/1009:00EDI - PHL

1 stop20h 52mKLM

Mon 20/1013:42PHL - EDI

1 stop12h 03mKLM

Deal found 14/9£547

Tue 4/1113:30BHX - PHL

2 stops57h 50mVirgin Atlantic

Sun 9/1117:24PHL - BHX

2 stops43h 26mVirgin Atlantic

Deal found 15/9£567

Sat 1/1106:00BHX - PHL

2 stops18h 04mAir France

Thu 6/1113:42PHL - BHX

2 stops14h 48mAir France

Deal found 15/9£581

Direct flights from United Kingdom to Philadelphia
Explore direct flight options from United Kingdom to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 16 September 2025.

Mon 2/310:05LHR - PHL

Nonstop8h 05mFinnair

Mon 9/319:35PHL - LHR

Nonstop7h 00mFinnair

Deal found 15/9£447

Tue 4/1110:15LHR - PHL

Nonstop8h 10mBritish Airways

Mon 24/1119:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 14/9£450

Wed 11/310:05LHR - PHL

Nonstop8h 05mBritish Airways

Mon 23/320:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 14/9£450

Tue 7/1010:05LHR - PHL

Nonstop8h 00mBritish Airways

Tue 14/1020:00PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 14/9£452

Tue 4/1110:15LHR - PHL

Nonstop8h 10mFinnair

Thu 4/1218:35PHL - LHR

Nonstop7h 00mFinnair

Deal found 15/9£459

Wed 8/1012:30LHR - PHL

Nonstop8h 05mBritish Airways

Tue 14/1018:30PHL - LHR

Nonstop7h 10mBritish Airways

Deal found 15/9£465

Mon 3/1110:15LHR - PHL

Nonstop8h 10mAmerican Airlines

Mon 10/1119:45PHL - LHR

Nonstop7h 05mAmerican Airlines

Deal found 15/9£467

Tue 14/1010:05LHR - PHL

Nonstop8h 00mBritish Airways

Tue 21/1018:30PHL - LHR

Nonstop7h 10mBritish Airways

Deal found 14/9£470

Mon 20/1010:05LHR - PHL

Nonstop8h 00mBritish Airways

Wed 29/1019:35PHL - LHR

Nonstop7h 00mBritish Airways

Deal found 15/9£472

Mon 3/1110:15LHR - PHL

Nonstop8h 10mAmerican Airlines

Wed 3/1219:50PHL - LHR

Nonstop7h 00mAmerican Airlines

Deal found 15/9£472

Tue 4/1110:15LHR - PHL

Nonstop8h 10mBritish Airways

Tue 2/1219:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 15/9£474

Sat 1/1110:15LHR - PHL

Nonstop8h 00mBritish Airways

Mon 24/1119:45PHL - LHR

Nonstop7h 05mBritish Airways

Deal found 14/9£480

Last-minute flights from United Kingdom to Philadelphia
Discover last-minute flight deals from United Kingdom to Philadelphia. Data last updated 16 September 2025 and is based on user searches.

Wed 17/922:00LGW - PHL

3 stops40h 54mMultiple Airlines

Mon 6/1013:58PHL - LGW

1 stop15h 02mMultiple Airlines

Deal found 15/9£446

Wed 17/914:00LGW - PHL

1 stop28h 02mMultiple Airlines

Fri 17/1013:58PHL - LGW

1 stop15h 02mMultiple Airlines

Deal found 15/9£447

Fri 19/914:00LGW - PHL

1 stop15h 52mMultiple Airlines

Sat 27/909:05PHL - LGW

2 stops19h 55mMultiple Airlines

Deal found 15/9£439

Mon 22/909:30LHR - PHL

1 stop11h 30mUnited Airlines

Mon 29/915:00PHL - LHR

1 stop10h 55mUnited Airlines

Deal found 14/9£447

Tue 23/906:50LHR - PHL

2 stops19h 48mAir Canada

Sat 4/1009:20PHL - LHR

2 stops18h 15mAir Canada

Deal found 14/9£447

Wed 24/907:30LHR - PHL

1 stop13h 30mUnited Airlines

Wed 1/1015:25PHL - LHR

1 stop10h 05mUnited Airlines

Deal found 15/9£445

Fri 3/1014:00LGW - PHL

2 stops30h 27mMultiple Airlines

Tue 7/1011:34PHL - LGW

1 stop17h 26mMultiple Airlines

Deal found 15/9£442

Sat 4/1008:45LBA - PHL

1 stop15h 15mAer Lingus

Wed 8/1020:30PHL - LBA

1 stop14h 00mAer Lingus

Deal found 15/9£403

Wed 29/1008:15BHX - PHL

1 stop12h 45mAer Lingus

Wed 5/1117:30PHL - BHX

1 stop9h 15mAer Lingus

Deal found 14/9£440

Thu 30/1008:50LGW - PHL

1 stop12h 10mMultiple Airlines

Thu 6/1117:30PHL - LGW

1 stop10h 00mMultiple Airlines

Deal found 15/9£440

Thu 30/1007:25BHX - PHL

1 stop13h 35mMultiple Airlines

Thu 6/1117:30PHL - BHX

1 stop9h 15mMultiple Airlines

Deal found 15/9£444

Fri 31/1008:20EDI - PHL

1 stop12h 40mAer Lingus

Fri 7/1117:30PHL - EDI

1 stop13h 00mAer Lingus

Deal found 15/9£430

One-way flights from United Kingdom to Philadelphia
Search for one-way flight options from United Kingdom to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Sun 14/1209:30MAN - PHL

3 stops44h 02mMultiple Airlines

Deal found 15/9£252

Sun 14/1206:00EDI - PHL

3 stops47h 32mMultiple Airlines

Deal found 14/9£263

Thu 11/1209:15EDI - PHL

3 stops36h 34mMultiple Airlines

Deal found 14/9£287

Thu 13/1109:15EDI - PHL

3 stops36h 34mMultiple Airlines

Deal found 14/9£288

Tue 11/1108:25EDI - PHL

3 stops56h 54mMultiple Airlines

Deal found 15/9£291

Sat 15/1106:10EDI - PHL

3 stops34h 08mMultiple Airlines

Deal found 14/9£297

Fri 14/1118:00EDI - PHL

2 stops46h 18mMultiple Airlines

Deal found 15/9£302

Tue 7/1021:40EDI - PHL

3 stops38h 50mMultiple Airlines

Deal found 14/9£308

Thu 8/118:50GLA - PHL

2 stops34h 50mMultiple Airlines

Deal found 14/9£355

Wed 24/913:25LHR - PHL

1 stop10h 35mAer Lingus

Deal found 15/9£360

Wed 1/1015:05LHR - PHL

2 stops58h 50mMultiple Airlines

Deal found 15/9£361

Tue 18/1111:45LHR - PHL

2 stops16h 21mDelta

Deal found 16/9£361

Cheapflights Fare Finder

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

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Wed 26/11

07:25-16:00

1 stop13h 35m

Philadelphia

Mon 1/12

17:30-07:50

1 stop9h 20m

£401

LeedsPhiladelphia

LBA - PHL

LBAPHL

Leeds/Bradford

Sat 4/10

08:45-19:00

1 stop15h 15m

Philadelphia

Wed 8/10

20:30-15:30

1 stop14h 00m

£403

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Fri 31/10

08:20-17:00

1 stop12h 40m

Philadelphia

Fri 7/11

17:30-11:30

1 stop13h 00m

£430

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 29/9

07:45-18:57

2 stops16h 12m

Philadelphia

Sat 11/10

13:05-08:20

1 stop14h 15m

£441

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Thu 30/10

07:25-17:00

1 stop13h 35m

Philadelphia

Thu 6/11

17:30-07:45

1 stop9h 15m

£444

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 16/10

08:40-11:56

2 stops32h 16m

Philadelphia

Thu 23/10

10:32-10:40

1 stop19h 08m

£447

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 30/10

08:30-00:15

2 stops19h 45m

Philadelphia

Sun 2/11

20:00-11:15

2 stops34h 15m

£448

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 29/10

06:50-17:00

1 stop14h 10m

Philadelphia

Wed 5/11

17:30-08:35

1 stop10h 05m

£449

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/3

06:00-22:56

2 stops21h 56m

Philadelphia

Mon 9/3

16:35-18:40

2 stops22h 05m

£450

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 29/9

14:00-23:59

1 stop14h 59m

Philadelphia

Wed 1/10

14:07-10:00

1 stop14h 53m

£450

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 60 results

...

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, March is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £648). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of £839). 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?

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

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

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

1,323 reviews

Check prices

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

1,323 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

United Airlines

7.4

Good

8,929 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Aer Lingus

7.2

Good

1,270 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Iberia

7.0

Good

2,924 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,361 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

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 15h 15m. Fly via Aer Lingus, United Airlines, or Austrian Airlines to get the fastest option. Airlines will cover a distance of 3437 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 Aer Lingus, with whom users have recently found tickets for as low as £360. However, be on the lookout for offers from Delta 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 Aer Lingus (74%), American Airlines (66%) and Finnair (66%).
What are the cheapest flights from United Kingdom to Philadelphia?
While on average a flight from United Kingdom to Philadelphia is generally £774, our data shows the cheapest flight currently is £464. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £410 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, March is the cheapest month in which you can book a flight from United Kingdom to Philadelphia (average of £648). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of £839). 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

Top 10 airlines flying from United Kingdom to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£299	Average£511	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£301	Average£627	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Icelandair	Cheapest£331	Average£480	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air Canada	Cheapest£333	Average£468	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
JetBlue	Cheapest£354	Average£496	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
British Airways	Cheapest£395	Average£597	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£407	Average£582	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£437	Average£597	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Virgin Atlantic	Cheapest£437	Average£601	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
American Airlines	Cheapest£440	Average£586	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

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.

Cheap flights from the United Kingdom to Philadelphia from £252

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.

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 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from United Kingdom to Philadelphia

Cheapest flights from United Kingdom to PhiladelphiaExplore 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 16 September 2025.

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 16 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Philadelphia that are best for you.

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.

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?

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 16 September 2025.

Weekly flight availability from United Kingdom to Philadelphia

Reviews of airlines servicing Philadelphia

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.

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?

How long is the flight from United Kingdom to Philadelphia?

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

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

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

What are the cheapest flights from United Kingdom to Philadelphia?

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

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

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

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

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.

Top 10 airlines flying from United Kingdom to Philadelphia

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?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

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 16 September 2025.