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£411+ Cheap flights to Philadelphia

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
— PHL
4 May — 11 May1
1 adult

Flights to Philadelphia in 2025

Find the latest flights to Philadelphia in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 29 April 2025.

Return from

£411

One-way from

£421

Popular in

August

Cheapest in

February

Average price

£561

Good round-trip deal

£550 or less

Good one-way deal

£491 or less
JetBlue
  • JetBlue
  • 8/9-24/9
  • 2 total stops
  • 28h 47m total
  • London to Philadelphia
27/5
  • 27/5
  • 3 total stops
  • 45h 26m total
  • London to Philadelphia
Highest demand for flights based on searches. 10% potential increase in price (£47 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for return flights in April 2025
Price to beat on a round-trip flight from London to Philadelphia.
Price to beat on a one-way flight from London to Philadelphia.

Find flight deals to Philadelphia

Cheapest flights to Philadelphia
Explore the most affordable flight options available to Philadelphia. Find the lowest fares based on data from user searches, with prices last updated on 29 April 2025.

Mon 8/912:10LGW - PHL
1 stop15h 12mJetBlue
Wed 24/915:00PHL - LGW
1 stop13h 35mJetBlue
Deal found 28/4£411
Sat 7/610:00LGW - PHL
1 stop17h 17mMultiple Airlines
Thu 17/717:36PHL - LGW
1 stop32h 19mMultiple Airlines
Deal found 28/4£418
Tue 9/908:25LHR - PHL
1 stop15h 17mJetBlue
Tue 23/910:20PHL - LHR
1 stop15h 10mJetBlue
Deal found 28/4£442
Tue 13/509:30LHR - PHL
1 stop11h 30mMultiple Airlines
Fri 23/509:45PHL - LHR
1 stop15h 45mMultiple Airlines
Deal found 28/4£452
Mon 5/507:25LHR - PHL
2 stops37h 23mUnited Airlines
Tue 13/509:45PHL - LHR
1 stop19h 15mUnited Airlines
Deal found 28/4£461
Mon 5/512:30LHR - PHL
Nonstop7h 45mAmerican Airlines
Mon 12/514:00PHL - LHR
1 stop11h 15mAmerican Airlines
Deal found 29/4£463
Mon 1/908:25LHR - PHL
1 stop10h 35mFinnair
Mon 8/913:35PHL - LHR
1 stop11h 40mFinnair
Deal found 28/4£466
Tue 9/906:50LHR - PHL
2 stops20h 18mAir Canada
Sun 28/910:35PHL - LHR
1 stop17h 00mAir Canada
Deal found 28/4£472
Thu 22/506:30LHR - PHL
1 stop14h 30mLufthansa
Thu 29/508:31PHL - LHR
1 stop16h 49mLufthansa
Deal found 28/4£475
Wed 7/513:25LHR - PHL
1 stop10h 35mBritish Airways
Wed 14/519:30PHL - LHR
Nonstop7h 25mBritish Airways
Deal found 28/4£478
Wed 10/918:35LGW - PHL
2 stops51h 46mSWISS
Thu 25/917:35PHL - LGW
2 stops43h 15mSWISS
Deal found 28/4£486
Sat 7/612:10LGW - PHL
1 stop15h 19mIcelandair
Thu 17/710:25PHL - LGW
1 stop18h 10mIcelandair
Deal found 29/4£486

Cheapflights Fare Finder

Locate flights to Philadelphia that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 29 April 2025.
Use the filters below to find and compare flights to Philadelphia that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 8/9

12:10-22:22

1 stop15h 12m

Philadelphia

Wed 24/9

15:00-09:35

1 stop13h 35m

£411

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 7/6

10:00-22:17

1 stop17h 17m

Philadelphia

Thu 17/7

17:36-06:55

1 stop32h 19m

£418

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 9/9

08:25-18:42

1 stop15h 17m

Philadelphia

Tue 23/9

10:20-06:30

1 stop15h 10m

£442

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 13/5

09:30-16:00

1 stop11h 30m

Philadelphia

Fri 23/5

09:45-06:30

1 stop15h 45m

£452

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 13/5

09:30-16:00

1 stop11h 30m

Philadelphia

Sun 18/5

06:15-05:55

2 stops18h 40m

£461

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/9

08:25-14:00

1 stop10h 35m

Philadelphia

Mon 8/9

13:35-06:15

1 stop11h 40m

£466

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 11/9

09:30-16:00

1 stop11h 30m

Philadelphia

Sat 27/9

10:30-10:40

1 stop19h 10m

£466

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 9/9

06:50-22:08

2 stops20h 18m

Philadelphia

Sat 27/9

10:35-11:50

1 stop20h 15m

£472

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 24/6

18:05-09:25

1 stop20h 20m

Philadelphia

Tue 8/7

15:35-07:40

1 stop11h 05m

£474

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 10/9

18:35-17:21

2 stops51h 46m

Philadelphia

Thu 25/9

17:35-17:50

2 stops43h 15m

£486

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 58 results
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Best time to book a flight to Philadelphia

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

When is the best time to book a flight to Philadelphia?

Use this chart to determine the optimal time to book a return flight from London to Philadelphia. Price data was last updated on 25 April 2025.

The price you pay for your flight to Philadelphia may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Philadelphia?

On average, a flight from London to Philadelphia takes 17 hours 19 minutes. Flights to Philadelphia from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Philadelphia?

Use this chart to determine the cheapest time to fly return from London to Philadelphia. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Philadelphia should consider flying on Tuesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday evenings, when prices are usually at their highest.

Weekly flight availability to Philadelphia

The most flights from London to Philadelphia are scheduled on a Monday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 on average).

What are the cheapest airlines that fly to Philadelphia?

The cheapest airlines flying from London to Philadelphia are United Airlines, Icelandair and Air Canada.

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, 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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 29 April 2025.
To help decide which airline to fly to Philadelphia, see what other customers have to say about Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

FAQs about flying to Philadelphia

Philadelphia climate

Icy cold winters and extremely humid summers make spring and autumn the best time to take flights to Philadelphia. If you can handle the crowds, Philadelphia goes wild every 4th of July (Independence Day) with fireworks and city-wide celebrations.

Getting around Philadelphia

A quick and easy way to get around the city centre is the Phlash, Philadelphia’s gas-engine trolley. It’s a convenient way to get to Independence Visitor Centre, Penn’s Landing and the Philadelphia Museum of Art. The trolley runs every day and can be boarded every 12 minutes at very affordable rates. It also provides direct connections to rail lines.

Getting from the Airport to the City

The main airport for travellers taking flights to Philadelphia is Philadelphia International Airport (PHL). There is a shuttle available from the airport and transfer time is about 30 minutes. Car rental companies operate at the airport as well as limousine service.

What is good to know if travelling to Philadelphia?

  • National Park Service rangers invite you to the Edgar Allan Poe National Historic Site which commemorates Poe’s mysterious death on October 7, 1849. A series of special programs leading up to Halloween explore the famous author’s themes of madness, revenge, premature burial and death.
  • Located across from the Liberty Bell and Independence Hall in Independence National Historical Park, the Independence Visitor Centre provides a free orientation to the culture, history, shopping and dining throughout the Greater Philadelphia region.
  • Plan a visit to the National Constitution Centre where you can explore the Interactive Constitution, a clause-by-clause explanation of the Constitution, providing easy access to basic constitutional facts and interpretation, and searchable by key words and Supreme Court cases.
  • Be sure to visit the Philadelphia Stock Exchange (PHLX) which is the oldest stock exchange in the United States.
  • Celebrating more than 100 years of Gilbert and Sullivan and located in Philadelphia, the Savoy Company is the oldest amateur theatre company in the world dedicated solely to the production of the works of Gilbert and Sullivan.

Philadelphia airport overview

Philadelphia International Airport is the largest airport in Pennsylvania and an international hub for US Airways. It’s also the main gateway to Philadelphia and Pennsylvania generally.

Philadelphia itself, affectionately known as Philly, is often referred to as “the Birthplace of America”. With a rich and varied history, it’s the fifth-largest city in the US, and has a metropolitan area spanning 12 counties. As a result the atmosphere, architecture and demographic varies quite widely depending on which area you travel to, from up-market art and design centres and historic quarters to working-class areas and quiet, leafy suburbs.

The airport is one of the busiest in the world. It has seven terminals, two of which are international terminals, and more than 160 shops and eateries. The immigration counters are notorious for being understaffed and poorly organised and long queues are common, so if you’re catching a connecting flight, make sure you arrive well in advance.

  • What airport do you fly into for flights to Philadelphia?

    If you book a flight to Philadelphia, you will be flying into Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 14 flights from London to Philadelphia per day from 11 different airlines.

  • Can I find cheaper flights to Philadelphia if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Philadelphia on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Philadelphia?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Philadelphia.

  • What is the cheapest airport to fly to in Philadelphia?

    Philadelphia is currently the cheapest airport to fly to in Philadelphia. One-way flights to Philadelphia typically cost £45, while return flights cost around £58.

  • How much is a return flight to Philadelphia?

    A return flight to Philadelphia will typically cost around £168, however they can be found for as little as £78.

  • Where does the fastest flight to Philadelphia depart from?

    For those looking to save time traveling to Philadelphia, Edinburgh Turnhouse offers the quickest one-way flight (7 hours 5 minutes).

  • Does Philadelphia have car hire?

    Yes. Those touching down at Philadelphia can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Philadelphia?

    Yes. Philadelphia has hotels nearby for those requiring accommodations. Philadelphia Airport Marriott is the closest property to Philadelphia (0.0 mi away from Philadelphia).

See more FAQs

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