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$206+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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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 21, 2025.

This American Airlines deal was found by Cheapflights users on 12/19. 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.
Sun 12/286:35 pmPHL - GLA
1 stop11h 10mAmerican Airlines
Tue 1/66:25 amGLA - PHL
1 stop14h 50mAmerican Airlines
Deal found 12/19$723
This Expedia deal was found by Cheapflights users on 12/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:05 pmPHL - LHR
1 stop30h 50mJetBlue
Tue 1/139:20 amLHR - PHL
1 stop14h 03mJetBlue
Deal found 12/18$743
This Expedia deal was found by Cheapflights users on 12/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:40 amPHL - LHR
1 stop17h 15mJetBlue
Tue 1/139:20 amLHR - PHL
1 stop14h 03mJetBlue
Deal found 12/20$770
This FlightHub deal was found by Cheapflights users on 12/20. 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.
Sun 12/284:47 pmPHL - GLA
2 stops18h 53mBritish Airways
Tue 1/67:10 pmGLA - PHL
1 stop23h 20mBritish Airways
Deal found 12/20$778
This Expedia deal was found by Cheapflights users on 12/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:40 amPHL - LHR
1 stop17h 15mJetBlue
Sat 1/109:20 amLHR - PHL
1 stop14h 18mJetBlue
Deal found 12/19$832
This Ovago deal was found by Cheapflights users on 12/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:05 pmPHL - LHR
1 stop30h 50mJetBlue
Fri 1/99:20 amLHR - PHL
1 stop14h 03mJetBlue
Deal found 12/19$844
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/298:27 amPHL - MAN
2 stops20h 53mUnited Airlines
Fri 1/99:25 amMAN - PHL
2 stops18h 21mUnited Airlines
Deal found 12/19$856
This Priceline deal was found by Cheapflights users on 12/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:05 pmPHL - LHR
1 stop30h 50mJetBlue
Sun 1/119:20 amLHR - PHL
1 stop14h 03mJetBlue
Deal found 12/21$872
This Expedia deal was found by Cheapflights users on 12/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:19 pmPHL - MAN
2 stops33h 51mMultiple Airlines
Wed 1/75:25 pmMAN - PHL
2 stops35h 31mMultiple Airlines
Deal found 12/19$878
This Ovago deal was found by Cheapflights users on 12/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:05 pmPHL - LHR
1 stop30h 50mJetBlue
Sun 1/119:20 amLHR - PHL
1 stop14h 03mJetBlue
Deal found 12/19$879
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/292:50 pmPHL - BHX
3 stops16h 55mUnited Airlines
Fri 1/96:05 amBHX - PHL
3 stops17h 49mUnited Airlines
Deal found 12/19$892
This Expedia deal was found by Cheapflights users on 12/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:15 pmPHL - BHX
1 stop29h 30mMultiple Airlines
Fri 1/97:55 pmBHX - PHL
2 stops48h 40mMultiple Airlines
Deal found 12/19$900

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 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$559
(Mytrip)

One-way from

$206
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$900

Good round-trip deal

$707 or less

Good one-way deal

$451 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
Search Deals
From Philadelphia to United Kingdom
Search Deals
One-way flight from Philadelphia to United Kingdom
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($188 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to United Kingdom.
Search Deals
Price to beat on a one-way flight from Philadelphia to United Kingdom.
Search Deals

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 21, 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

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 2/9

3:30 pm-1:40 pm

2 stops17h 10m

Manchester

Wed 2/18

7:35 pm-2:47 pm

3 stops24h 12m

$588

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 2/4

3:35 pm-10:45 am

2 stops14h 10m

Glasgow Intl

Wed 2/11

8:40 am-4:15 pm

1 stop12h 35m

$603

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Fri 2/13

4:05 pm-9:20 pm

3 stops24h 15m

London Stansted

Wed 2/18

9:45 pm-2:47 pm

3 stops22h 02m

$615

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 2/2

6:35 pm-4:30 pm

1 stop16h 55m

Manchester

Mon 2/9

6:50 pm-4:15 pm

1 stop26h 25m

$617

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 1/13

4:44 pm-11:25 am

2 stops13h 41m

Manchester

Tue 1/20

6:15 am-1:30 pm

1 stop12h 15m

$619

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 4/29

6:45 pm-1:10 pm

1 stop13h 25m

Manchester

Fri 5/8

8:40 am-4:40 pm

1 stop13h 00m

$619

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 1/12

3:30 pm-7:10 pm

3 stops22h 40m

London Stansted

Tue 1/20

7:35 pm-2:47 pm

3 stops24h 12m

$619

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 1/13

4:59 pm-10:30 am

1 stop12h 31m

Manchester

Tue 1/20

1:30 pm-10:50 pm

1 stop14h 20m

$622

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 4/8

8:30 pm-12:35 pm

1 stop11h 05m

London Luton

Wed 4/15

6:15 am-7:00 pm

1 stop17h 45m

$624

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 2/2

1:30 pm-6:55 am

1 stop12h 25m

London Heathrow

Sun 2/8

9:20 am-6:23 pm

1 stop14h 03m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

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, November is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $75). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $451). 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 21, 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 9% 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 21, 2025.

The most flights from PHL to GB0 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 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 21, 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.
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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
Finnair
7.6
Good
1,339 reviews
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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
American Airlines
7.2
Good
11,050 reviews
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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
Aer Lingus
7.2
Good
1,406 reviews
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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
Iberia
7.0
Good
3,055 reviews
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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
British Airways
6.7
Okay
7,600 reviews
Finnair
7.6
Good
1,339 reviews

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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 12h 31m. The distance between Philadelphia and United Kingdom is about 3422 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?

    The most popular route from Philadelphia to United Kingdom is Philadelphia - London Heathrow. You may also consider Philadelphia - London Gatwick or Philadelphia - London City.

  • 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 (90%), Malaysia Airlines (89%), American Airlines( 87%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $411. On average you can expect to pay $1,899. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $636.

  • 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, November is the cheapest month in which you can book a flight from Philadelphia to United Kingdom (average of $75). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $451). 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.
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Top 10 airlines flying from Philadelphia to United Kingdom

Discover the top 10 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$503Average$713FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$508Average$892FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$509Average$853FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$849FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$522Average$924FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$556Average$807FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$560Average$838FlexibilityNo cancel feeOn-time69%
IberiaCheapest$601Average$829FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$622Average$857FlexibilityNo cancel feeOn-time76%
DeltaCheapest$766Average$1,138FlexibilityNo cancel feeOn-timeN/A

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