United Kingdom

$196+ Cheap flights from Philadelphia (PHL) to the United Kingdom

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Jan 2 — Jan 91
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Cheap flight deals from Philadelphia to United Kingdom

Cheapest flights from Philadelphia to United Kingdom
Explore the most affordable flight options available from Philadelphia to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 pmPHL - MAN
1 stop20h 05mBritish Airways
Thu 1/159:45 amMAN - PHL
1 stop11h 30mBritish Airways
Deal found 12/2$549
This lastminute.com deal was found by Cheapflights users on 12/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:46 amPHL - LHR
1 stop14h 19mVirgin Atlantic
Tue 12/169:40 amLHR - PHL
1 stop16h 57mVirgin Atlantic
Deal found 12/2$627
This Flysmarter deal was found by Cheapflights users on 12/2. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:30 pmPHL - LHR
1 stop10h 40mAir Canada
Tue 12/1610:25 amLHR - PHL
1 stop15h 45mAir Canada
Deal found 12/2$628
This Gotogate deal was found by Cheapflights users on 12/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:50 amPHL - LHR
2 stops18h 20mMultiple Airlines
Tue 12/161:25 pmLHR - PHL
1 stop30h 25mMultiple Airlines
Deal found 12/1$630
This CheapOair deal was found by Cheapflights users on 12/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:15 amPHL - LHR
2 stops15h 55mMultiple Airlines
Tue 12/167:00 amLHR - PHL
2 stops14h 05mMultiple Airlines
Deal found 12/2$631
This British Airways deal was found by Cheapflights users on 12/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmPHL - LHR
Nonstop7h 00mBritish Airways
Mon 1/121:10 pmLHR - PHL
Nonstop8h 05mBritish Airways
Deal found 12/1$632
This Finnair deal was found by Cheapflights users on 12/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:51 pmPHL - LHR
Nonstop6h 59mFinnair
Sun 2/810:15 amLHR - PHL
Nonstop8h 15mFinnair
Deal found 12/1$633
This Booking.com deal was found by Cheapflights users on 12/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 amPHL - LHR
2 stops19h 40mMultiple Airlines
Mon 12/157:30 pmLHR - PHL
2 stops25h 35mMultiple Airlines
Deal found 12/2$634
This Air Canada deal was found by Cheapflights users on 12/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 amPHL - LHR
2 stops19h 40mAir Canada
Tue 12/161:25 pmLHR - PHL
2 stops38h 21mAir Canada
Deal found 12/2$635
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:20 pmPHL - LHR
1 stop12h 15mAmerican Airlines
Tue 12/231:10 pmLHR - PHL
Nonstop8h 05mAmerican Airlines
Deal found 12/2$637
This FlightHub deal was found by Cheapflights users on 12/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:20 pmPHL - MAN
2 stops14h 15mBritish Airways
Tue 12/167:25 pmMAN - PHL
2 stops23h 25mBritish Airways
Deal found 12/1$639
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:05 pmPHL - LHR
1 stop9h 45mUnited Airlines
Thu 12/187:40 amLHR - PHL
1 stop14h 48mUnited Airlines
Deal found 12/2$639

Find flight deals from Philadelphia to United Kingdom

Keep the following information in mind while searching for Philadelphia to United Kingdom flight deals. Data was last updated December 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$532
(Mytrip)

One-way from

$196
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$951

Good round-trip deal

$732 or less

Good one-way deal

$441 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
From Philadelphia to United Kingdom
One-way flight from Philadelphia to United Kingdom
Highest demand for flights based on searches. 19% potential increase in price ($186 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Philadelphia to United Kingdom.
Price to beat on a one-way flight from Philadelphia to United Kingdom.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to United Kingdom 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 December 3, 2025.
Use the filters below to find and compare flights from Philadelphia to the United Kingdom that are best for you.

Fly from

Philadelphia

Fly to

United Kingdom

Route

Depart

Return

Price

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 1/20

6:35 pm-9:50 am

1 stop10h 15m

Glasgow Intl

Tue 1/27

9:50 am-4:15 pm

1 stop11h 25m

$540

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 1/21

7:50 am-4:40 pm

3 stops27h 50m

Manchester

Mon 1/26

4:25 pm-2:47 pm

3 stops27h 22m

$558

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 3/11

3:47 pm-1:55 pm

2 stops18h 08m

Manchester

Thu 3/19

8:50 am-5:15 pm

1 stop12h 25m

$562

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 2/4

12:23 pm-10:55 am

2 stops17h 32m

Manchester

Mon 2/9

6:50 pm-4:15 pm

1 stop26h 25m

$562

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 2/3

6:35 pm-11:25 am

1 stop11h 50m

Manchester

Tue 2/10

8:55 am-4:15 pm

1 stop12h 20m

$565

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 2/4

6:35 pm-10:55 am

1 stop11h 20m

Manchester

Wed 2/11

5:25 pm-4:15 pm

1 stop27h 50m

$565

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 2/3

6:35 pm-11:25 am

1 stop11h 50m

Manchester

Wed 2/11

6:30 pm-4:15 pm

1 stop26h 45m

$565

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sat 1/17

3:30 pm-11:05 pm

3 stops26h 35m

London Stansted

Fri 1/23

8:15 pm-10:46 pm

2 stops31h 31m

$619

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 2/25

7:50 am-9:20 am

2 stops20h 30m

London Heathrow

Sun 3/8

7:30 am-5:05 pm

1 stop13h 35m

$630

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sat 1/17

12:11 pm-5:40 pm

2 stops24h 29m

London Heathrow

Sat 1/24

6:40 am-12:21 am

2 stops22h 41m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 60 results
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Best time to book a flight from Philadelphia to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Philadelphia 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 Philadelphia to the United Kingdom

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

Currently, August is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $144). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $480). 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 PHL to GB?

Find hourly flight availability from Philadelphia to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 3, 2025.

One of the essential ways to save on airfare from Philadelphia to United Kingdom is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to United Kingdom flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to United Kingdom

Explore weekly flight availability from Philadelphia to United Kingdom. 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 December 3, 2025.

The most flights from PHL to GB0 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).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated December 3, 2025.
Peruse reviews from past customers who have flown with Finnair, American Airlines, and Aer Lingus from Philadelphia to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to United Kingdom. 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 from for flights from Philadelphia to United Kingdom?

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

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

    Departing from Philadelphia to United Kingdom will take you 10h 15m. The distance between Philadelphia and United Kingdom is about 3297 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Philadelphia to United Kingdom are JetBlue ($174), TAP AIR PORTUGAL ($198), and Iberia ($353).

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

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

    Before booking your flight to United Kingdom from Philadelphia, check out the most reliable airlines to get you to your destination on time: Finnair (85%), Malaysia Airlines (85%), American Airlines( 84%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $366. On average you can expect to pay $2,084. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $489.

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

    Yes. In addition to deals on Philadelphia to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to United Kingdom.

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

    Yes. Cheapflights offers flight deals from Philadelphia to United Kingdom 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 Philadelphia to United Kingdom?

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $144). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $480). 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 Philadelphia to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Philadelphia to United Kingdom

Discover the top 9 airlines that operate flights from Philadelphia to United Kingdom. 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 December 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$503Average$712FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$505Average$914FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$508Average$830FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$856FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$522Average$931FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$832FlexibilityNo cancel feeOn-time69%
IberiaCheapest$579Average$826FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$857FlexibilityNo cancel feeOn-time76%
DeltaCheapest$784Average$1,174FlexibilityNo cancel feeOn-timeN/A

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