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$155+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$634
(Finnair)

One-way from

$155
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$736

Good round-trip deal

$714 or less

Good one-way deal

$564 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
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From Philadelphia to United Kingdom
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One-way flight from Philadelphia to United Kingdom
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Highest demand for flights based on searches. 19% potential increase in price ($196 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Philadelphia to United Kingdom.
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Price to beat on a one-way flight from Philadelphia to United Kingdom.
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Find 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 March 26, 2025.

This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2810:10 pmPHL - GLA
1 stop13h 35mBritish Airways
Wed 5/75:50 amGLA - PHL
2 stops15h 35mBritish Airways
Deal found 3/25$637
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:30 pmPHL - INV
1 stop10h 45mBritish Airways
Mon 9/223:45 pmINV - PHL
2 stops29h 10mBritish Airways
Deal found 3/25$643
This Iberia deal was found by Cheapflights users on 3/24. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:30 pmPHL - LHR
Nonstop7h 25mIberia
Wed 5/146:30 amLHR - PHL
1 stop14h 55mIberia
Deal found 3/24$645
This Mytrip deal was found by Cheapflights users on 3/24. 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.
Mon 5/127:35 amPHL - LGW
3 stops26h 00mMultiple Airlines
Wed 5/1410:00 amLGW - PHL
1 stop31h 52mMultiple Airlines
Deal found 3/24$646
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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.
Mon 4/286:30 pmPHL - MAN
1 stop12h 05mBritish Airways
Tue 5/67:55 amMAN - PHL
1 stop13h 30mBritish Airways
Deal found 3/24$647
This JetBlue Airways deal was found by Cheapflights users on 3/25. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:15 pmPHL - LGW
1 stop11h 20mJetBlue
Sat 9/2712:10 pmLGW - PHL
1 stop11h 32mJetBlue
Deal found 3/25$647
This FlightHub deal was found by Cheapflights users on 3/24. 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.
Wed 8/278:30 pmPHL - LHR
1 stop11h 10mAer Lingus
Fri 9/512:00 pmLHR - PHL
1 stop12h 00mAer Lingus
Deal found 3/24$651
This JetBlue Airways deal was found by Cheapflights users on 3/25. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/28:25 amPHL - LHR
1 stop17h 05mJetBlue
Wed 4/168:25 amLHR - PHL
1 stop13h 27mJetBlue
Deal found 3/25$652
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 8/203:30 pmPHL - LHR
1 stop10h 50mBritish Airways
Mon 8/258:25 amLHR - PHL
1 stop10h 35mBritish Airways
Deal found 3/24$656
This Air Canada deal was found by Cheapflights users on 3/24. 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 10/13:20 pmPHL - LHR
1 stop10h 10mMultiple Airlines
Tue 10/71:30 pmLHR - PHL
2 stops13h 57mMultiple Airlines
Deal found 3/24$657
This Finnair deal was found by Cheapflights users on 3/24. 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 8/277:40 pmPHL - LHR
Nonstop7h 15mFinnair
Fri 9/57:15 amLHR - PHL
1 stop14h 10mFinnair
Deal found 3/24$658
This oojo deal was found by Cheapflights users on 3/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:15 amPHL - LGW
1 stop14h 20mBritish Airways
Wed 5/142:30 pmLGW - PHL
1 stop24h 11mBritish Airways
Deal found 3/24$660

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 March 26, 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

Mon 4/28

10:10 pm-4:45 pm

1 stop13h 35m

Glasgow Intl

Wed 5/7

5:50 am-4:25 pm

2 stops15h 35m

$637

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Mon 9/15

6:30 pm-10:15 am

1 stop10h 45m

Inverness

Mon 9/22

3:45 pm-3:55 pm

2 stops29h 10m

$643

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 5/7

7:30 pm-7:55 am

Nonstop7h 25m

London Heathrow

Wed 5/14

6:30 am-4:25 pm

1 stop14h 55m

$645

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 4/24

5:05 am-10:00 am

1 stop23h 55m

London Gatwick

Thu 5/1

2:00 pm-8:10 am

1 stop23h 10m

$646

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sat 9/13

5:15 pm-9:35 am

1 stop11h 20m

London Gatwick

Sat 9/27

12:10 pm-6:42 pm

1 stop11h 32m

$647

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 4/28

6:30 pm-11:35 am

1 stop12h 05m

Manchester

Tue 5/6

7:55 am-4:25 pm

1 stop13h 30m

$647

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/27

8:30 pm-12:40 pm

1 stop11h 10m

London Heathrow

Fri 9/5

12:00 pm-7:00 pm

1 stop12h 00m

$651

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Fri 4/4

8:25 am-6:30 am

1 stop17h 05m

London Heathrow

Tue 4/22

8:25 am-9:15 pm

1 stop17h 50m

$652

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/27

7:40 pm-7:55 am

Nonstop7h 15m

London Heathrow

Fri 9/5

7:15 am-4:25 pm

1 stop14h 10m

$658

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 4/22

7:55 pm-1:10 pm

1 stop12h 15m

Manchester

Tue 4/29

7:55 am-5:53 pm

2 stops14h 58m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 $661). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $1,115). 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 March 26, 2025.

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

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 March 26, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Philadelphia to 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.
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 ($249), Aer Lingus ($417), and American Airlines ($430).

  • 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: Malaysia Airlines (77%), American Airlines (75%), Finnair( 75%).

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

    The cheapest flight price from Philadelphia to United Kingdom is $460. On average you can expect to pay $2,245. The most popular route, (Philadelphia - London Heathrow), can usually be booked for $594.

  • 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 $661). Flying from Philadelphia to United Kingdom in June is currently the most expensive (average of $1,115). 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$454Average$726FlexibilityNo cancel feeOn-time62%
Aer LingusCheapest$557Average$982FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$593Average$842FlexibilityNo cancel feeOn-time71%
IberiaCheapest$618Average$819FlexibilityNo cancel feeOn-time77%
DeltaCheapest$623Average$1,049FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$626Average$903FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$629Average$899FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$656Average$1,009FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$673Average$967FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$994FlexibilityNo cancel feeOn-time76%
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