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Cheap flights from the United Kingdom to Philadelphia from £176

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
3 ינו' — 10 ינו'1
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 4 דצמבר 2025.

ד' 10/1207:20LHR - PHL
1 stop12h 55mAmerican Airlines
ה' 25/1213:41PHL - LHR
1 stop11h 09mAmerican Airlines
Deal found 1/12£541
ב' 29/1208:15LHR - PHL
1 stop12h 20mBritish Airways
ב' 12/118:59PHL - LHR
1 stop31h 01mBritish Airways
Deal found 1/12£542
ד' 10/1210:05LHR - PHL
Nonstop8h 00mBritish Airways
ה' 25/1208:25PHL - LHR
1 stop21h 50mBritish Airways
Deal found 1/12£546
ג' 16/1206:30LHR - PHL
1 stop14h 30mBritish Airways
ה' 25/1208:25PHL - LHR
1 stop21h 50mBritish Airways
Deal found 1/12£546
ד' 24/1208:30LHR - PHL
2 stops20h 00mUnited Airlines
ש' 17/107:50PHL - LHR
2 stops55h 45mUnited Airlines
Deal found 1/12£549
ד' 24/1215:30LHR - PHL
1 stop29h 35mUnited Airlines
ד' 14/107:50PHL - LHR
2 stops31h 45mUnited Airlines
Deal found 1/12£551
ג' 16/1206:35LHR - PHL
2 stops14h 30mLufthansa
ה' 15/117:40PHL - LHR
1 stop14h 10mLufthansa
Deal found 2/12£552
ה' 11/1210:05LHR - PHL
Nonstop8h 00mFinnair
ש' 13/1221:20PHL - LHR
1 stop28h 40mFinnair
Deal found 1/12£553
ב' 8/1206:50LCY - PHL
1 stop12h 10mMultiple Airlines
ב' 15/1219:56PHL - LCY
1 stop13h 39mMultiple Airlines
Deal found 1/12£559
ג' 16/1209:00LHR - PHL
2 stops17h 10mMultiple Airlines
ה' 15/117:40PHL - LHR
1 stop11h 05mMultiple Airlines
Deal found 1/12£561
ה' 11/1214:00LGW - PHL
1 stop14h 34mMultiple Airlines
ש' 13/1214:06PHL - LGW
1 stop14h 59mMultiple Airlines
Deal found 1/12£561
ג' 9/1209:20EDI - PHL
2 stops18h 50mDelta
ג' 5/510:35PHL - EDI
2 stops19h 05mDelta
Deal found 1/12£565

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 4 דצמבר 2025.

Round-trip from

£485

One-way from

£176

Popular in

December

Cheapest in

February

Average price

£695

Good round-trip deal

£598 or less

Good one-way deal

£449 or less
JetBlue
  • JetBlue
  • 28/4-12/5
  • 2 total stops
  • 24h 21m total
  • United Kingdom to Philadelphia
Search Deals
15/1
  • 15/1
  • 1 total stop
  • 15h 35m total
  • United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 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 4 דצמבר 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

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

ד' 18/3

18:50-17:05

2 stops26h 15m

Philadelphia

ד' 25/3

16:35-19:50

3 stops23h 15m

£517

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

ו' 30/1

06:50-14:05

1 stop12h 15m

Philadelphia

ב' 9/2

21:25-12:40

1 stop10h 15m

£546

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

ד' 4/2

18:25-14:50

3 stops25h 25m

Philadelphia

ב' 9/2

15:30-22:40

2 stops26h 10m

£548

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

ב' 12/1

06:50-14:05

1 stop12h 15m

Philadelphia

ג' 20/1

21:25-12:40

1 stop10h 15m

£555

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

ה' 22/1

08:50-14:05

2 stops34h 15m

Philadelphia

ב' 26/1

21:25-12:40

1 stop10h 15m

£561

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

ש' 17/1

13:20-09:38

2 stops25h 18m

Philadelphia

ש' 24/1

10:30-12:35

2 stops21h 05m

£566

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

ד' 18/3

10:45-23:00

2 stops16h 15m

Philadelphia

ד' 25/3

11:16-10:40

2 stops19h 24m

£567

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

ו' 6/2

16:40-18:23

2 stops30h 43m

Philadelphia

ב' 9/2

08:40-09:50

2 stops20h 10m

£567

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

ד' 18/3

08:20-17:00

1 stop12h 40m

Philadelphia

ד' 25/3

19:35-09:30

1 stop9h 55m

£567

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

ה' 29/1

06:50-14:05

1 stop12h 15m

Philadelphia

א' 8/2

21:25-12:40

1 stop10h 15m

£570

Flights are sorted by cheapest return flights first.

Deals found on 3/12

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 £98). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of £322). 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 4 דצמבר 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 12% 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 4 דצמבר 2025.

The most flights from GB0 to PHL are scheduled on a Wednesday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 171 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?

Wednesday 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, 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 4 דצמבר 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
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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
9,064 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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
1,384 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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
3,038 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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
7,557 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

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 16h 15m. Fly via British Airways, Lufthansa, or Delta 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 British Airways, with whom users have recently found tickets for as low as £362. However, be on the lookout for offers from Aer Lingus and Iberia, 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 (89%), American Airlines (85%) and Iberia (85%).

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

    While on average a flight from United Kingdom to Philadelphia is generally £826, our data shows the cheapest flight currently is £401. When looking at the most popular route, (London Heathrow - Philadelphia), you can expect to pay £412 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 £98). Flying from United Kingdom to Philadelphia in June is currently the most expensive (average of £322). 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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Heathrow to Reagan-National flights
Edinburgh to John F Kennedy Intl flights
Gatwick to Dulles Intl flights
Heathrow to Philadelphia flights
London City to Dulles Intl flights
Stansted to Dulles Intl flights
Gatwick to Reagan-National flights
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Glasgow Intl to John F Kennedy Intl flights
Edinburgh to Dulles Intl flights
Southend to John F Kennedy Intl flights
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London City to Philadelphia flights
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Manchester to Dulles Intl flights
Edinburgh to Reagan-National flights
Birmingham to Newark flights
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Heathrow to Pittsburgh flights
Luton to LaGuardia flights
London City to LaGuardia flights
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Birmingham to LaGuardia flights
Newcastle upon Tyne to John F Kennedy Intl flights
Manchester to Reagan-National flights
Luton to Philadelphia flights
Newcastle upon Tyne to Newark flights
Edinburgh to Philadelphia flights
Glasgow Intl to Dulles Intl flights
Newcastle upon Tyne to LaGuardia 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 4 דצמבר 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£305Average£518FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£307Average£640FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£341Average£474FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
JetBlueCheapest£395Average£580FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
British AirwaysCheapest£404Average£579FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£405Average£550FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£451Average£610FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£456Average£695FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£456Average£650FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£473Average£587FlexibilityNo 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.

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