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$384+ Cheap flights from the United Kingdom to Philadelphia (PHL)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
Aug 18 — Aug 251
Tue 8/18
Tue 8/25
1 adult, Economy
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Cheap 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 July 19, 2026.

This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Tue 9/226:48 pm
PHL
-
EDI
1 stop10h 12m
JetBlue
Deal found 7/15$548
This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Sun 9/203:25 pm
PHL
-
EDI
1 stop13h 35m
JetBlue
Deal found 7/15$578
This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Tue 9/226:48 pm
PHL
-
EDI
1 stop10h 12m
JetBlue
Deal found 7/15$619
This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Sun 9/203:25 pm
PHL
-
EDI
1 stop13h 35m
JetBlue
Deal found 7/15$649
This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Tue 9/226:48 pm
PHL
-
EDI
1 stop10h 12m
JetBlue
Deal found 7/15$666
This TravelUp deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:30 am
EDI
-
PHL
1 stop25h 52m
JetBlue
Mon 8/319:12 am
PHL
-
EDI
1 stop19h 48m
JetBlue
Deal found 7/14$676
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:30 am
BHX
-
PHL
1 stop15h 25m
Multiple Airlines
Tue 9/88:25 pm
PHL
-
BHX
1 stop9h 55m
Multiple Airlines
Deal found 7/18$677
This Mytrip deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:20 am
EDI
-
PHL
1 stop16h 35m
Multiple Airlines
Mon 8/318:25 pm
PHL
-
EDI
1 stop16h 05m
Multiple Airlines
Deal found 7/17$684
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:50 am
BHX
-
PHL
1 stop15h 05m
Multiple Airlines
Thu 9/178:25 pm
PHL
-
BHX
1 stop10h 55m
Multiple Airlines
Deal found 7/17$691
This deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:30 am
EDI
-
PHL
1 stop11h 34m
JetBlue
Sun 9/203:25 pm
PHL
-
EDI
1 stop13h 35m
JetBlue
Deal found 7/15$696
This TravelUp deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/211:30 am
EDI
-
PHL
1 stop26h 00m
JetBlue
Wed 8/129:12 am
PHL
-
EDI
1 stop19h 48m
JetBlue
Deal found 7/18$702
This Kissandfly.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:35 am
EDI
-
PHL
1 stop15h 20m
Aer Lingus
Sat 9/58:25 pm
PHL
-
EDI
1 stop18h 25m
Aer Lingus
Deal found 7/15$725

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 July 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$548

One-way from

$384
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$1,036

Good round-trip deal

$868 or less

Good one-way deal

$604 or less
Provider with most accurate pricing for London (LON)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Philadelphia flights.
Search Deals
From United Kingdom to Philadelphia
Search Deals
One-way flight from United Kingdom to Philadelphia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT 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

 
Customize 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 2,558,603 searches. Data last updated July 19, 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 round-trip

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Tue 9/1

7:15 pm-10:16 pm

2 stops32h 01m

Philadelphia

Tue 9/8

9:25 am-6:35 pm

2 stops28h 10m

$746

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Wed 9/23

7:15 pm-10:31 pm

2 stops32h 16m

Philadelphia

Wed 9/30

9:25 am-6:35 pm

2 stops28h 10m

$747

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Tue 9/1

8:30 am-6:55 pm

1 stop15h 25m

Philadelphia

Tue 9/8

8:28 am-8:05 am

2 stops18h 37m

$758

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 9/1

8:35 am-6:55 pm

1 stop15h 20m

Philadelphia

Tue 9/8

8:28 am-7:20 am

2 stops17h 52m

$792

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Wed 9/23

8:10 am-6:55 pm

1 stop15h 45m

Philadelphia

Wed 9/30

8:25 pm-4:05 pm

1 stop14h 40m

$796

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Wed 1/13

7:10 pm-12:51 am

2 stops34h 41m

Philadelphia

Sun 1/17

6:00 am-6:30 pm

2 stops31h 30m

$796

ManchesterPhiladelphia

MAN - PHL

MANPHL

Manchester

Wed 10/7

9:35 am-10:07 pm

2 stops17h 32m

Philadelphia

Thu 10/15

9:20 am-7:45 pm

3 stops29h 25m

$809

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 10/7

9:30 am-10:46 pm

2 stops18h 16m

Philadelphia

Wed 10/21

10:05 am-8:35 am

2 stops17h 30m

$815
Quickest round-trip

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 10/7

9:15 am-12:15 pm

Nonstop8h 00m

Philadelphia

Wed 10/21

10:20 pm-10:20 am

Nonstop7h 00m

$851

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 10/6

12:00 pm-6:55 pm

1 stop11h 55m

Philadelphia

Tue 10/13

8:25 pm-11:30 am

1 stop10h 05m

$862

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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 round-trip 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 $765). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of $1,094). 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 July 19, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Philadelphia as you normally would.

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 July 19, 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 172 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 last 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?

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 July 19, 2026.
Get a feel of what it's like to fly with Aer Lingus,American Airlines, andIberia from the United Kingdom to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,673 reviews

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.6

Boarding

7.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,673 reviews
Aer Lingus
7.3
Good
1,673 reviews

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.6

Boarding

7.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
American Airlines
7.1
Good
11,823 reviews
Aer Lingus
7.3
Good
1,673 reviews

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.6

Boarding

7.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Iberia
7.0
Good
3,257 reviews
Aer Lingus
7.3
Good
1,673 reviews

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.6

Boarding

7.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
British Airways
6.7
Okay
8,125 reviews
Aer Lingus
7.3
Good
1,673 reviews

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.6

Boarding

7.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

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?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from United Kingdom to Philadelphia.

  • How long is the flight from United Kingdom to Philadelphia?

    A quick flight from United Kingdom to Philadelphia can take about 15h 45m. Scandinavian Airlines provides one of the quickest options available for as low as $796. The distance from United Kingdom to Philadelphia is about 3460 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $388. Aer Lingus flights start at $483 while deals on American Airlines start at $490 one-way.

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

    The most popular flight routes from United Kingdom to Philadelphia are London Heathrow - Philadelphia, London City - Philadelphia and London Gatwick - Philadelphia.

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

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Philadelphia consider choosing Malaysia Airlines (88%), American Airlines (81%) or Finnair (81%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from United Kingdom to Philadelphia is $493. On average you can expect to pay $1,632. The most popular route, (London Heathrow - Philadelphia), can usually be booked for $566.

  • 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 vacation 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 $765). Flying from United Kingdom to Philadelphia in July is currently the most expensive (average of $1,094). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Reading
Camden
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Dewey Beach
Wildwood Crest
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville

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.

Top 3 airlines flying from United Kingdom to Philadelphia

Discover the top 3 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 2,558,603 searches. Data last updated July 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$610Average$814FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$614Average$983FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$674Average$1,129FlexibilityNo cancel feeOn-timeN/A

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