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£386+ Cheap flights to Philadelphia

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
— PHL
18 Jun — 25 Jun1
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 13 June 2025.

Return from

£450

One-way from

£386

Popular in

August

Cheapest in

February

Average price

£559

Good round-trip deal

£490 or less

Good one-way deal

£471 or less
Finnair
  • Finnair
  • 29/8-11/9
  • 1 total stop
  • 18h 20m total
  • London to Philadelphia
Aer Lingus
  • Aer Lingus
  • 24/9
  • 1 total stop
  • 14h 10m total
  • London to Philadelphia
Highest demand for flights based on searches. 9% potential increase in price (£44 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for return flights in June 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 13 June 2025.

Sat 30/806:50LHR - PHL
2 stops12h 47mMultiple Airlines
Sun 7/910:35PHL - LHR
2 stops14h 55mMultiple Airlines
Deal found 13/6£450
Thu 11/908:25LHR - PHL
1 stop14h 20mJetBlue
Thu 18/910:20PHL - LHR
1 stop15h 10mJetBlue
Deal found 13/6£452
Thu 3/710:00LGW - PHL
1 stop32h 40mMultiple Airlines
Mon 14/711:16PHL - LGW
1 stop14h 39mMultiple Airlines
Deal found 11/6£452
Mon 1/907:10LHR - PHL
1 stop11h 55mBritish Airways
Tue 30/915:59PHL - LHR
1 stop10h 21mBritish Airways
Deal found 11/6£453
Wed 12/1106:50LCY - PHL
1 stop12h 05mBritish Airways
Wed 19/1121:10PHL - LCY
1 stop19h 30mBritish Airways
Deal found 11/6£454
Thu 11/910:40LGW - PHL
1 stop31h 07mFinnair
Thu 18/911:44PHL - LGW
2 stops15h 26mFinnair
Deal found 11/6£461
Thu 27/1106:50LHR - PHL
2 stops13h 00mAir Canada
Thu 4/1215:30PHL - LHR
1 stop10h 40mAir Canada
Deal found 12/6£464
Mon 1/920:25LHR - PHL
2 stops24h 35mLufthansa
Sun 14/917:35PHL - LHR
1 stop11h 05mLufthansa
Deal found 13/6£468
Mon 23/611:45LHR - PHL
1 stop12h 50mVirgin Atlantic
Mon 30/618:33PHL - LHR
1 stop13h 57mVirgin Atlantic
Deal found 13/6£475
Thu 27/1113:10LHR - PHL
Nonstop8h 10mFinnair
Thu 4/1219:45PHL - LHR
Nonstop7h 05mFinnair
Deal found 12/6£477
Wed 12/1109:25LCY - PHL
2 stops34h 25mMultiple Airlines
Wed 19/1115:30PHL - LCY
2 stops36h 15mMultiple Airlines
Deal found 11/6£478
Thu 27/1107:25LHR - PHL
1 stop13h 10mAmerican Airlines
Thu 4/1219:45PHL - LHR
Nonstop7h 05mAmerican Airlines
Deal found 12/6£478

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 13 June 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

LHR - PHL

LHRPHL

London Heathrow

Sat 30/8

06:50-14:37

2 stops12h 47m

Philadelphia

Sun 7/9

10:35-06:30

2 stops14h 55m

£450

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 11/9

08:25-17:45

1 stop14h 20m

Philadelphia

Thu 18/9

10:20-06:30

1 stop15h 10m

£452

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 3/7

10:00-13:40

1 stop32h 40m

Philadelphia

Mon 14/7

11:16-06:55

1 stop14h 39m

£452

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/9

07:10-14:05

1 stop11h 55m

Philadelphia

Tue 30/9

15:59-07:20

1 stop10h 21m

£453

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 12/11

06:50-13:55

1 stop12h 05m

Philadelphia

Wed 19/11

21:10-21:40

1 stop19h 30m

£454

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 11/9

10:40-12:47

1 stop31h 07m

Philadelphia

Thu 18/9

11:44-08:10

2 stops15h 26m

£461

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 27/11

06:50-14:50

2 stops13h 00m

Philadelphia

Thu 4/12

15:30-07:10

1 stop10h 40m

£464

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/9

20:25-16:00

2 stops24h 35m

Philadelphia

Sun 14/9

17:35-09:40

1 stop11h 05m

£468

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 23/6

12:30-15:25

Nonstop7h 55m

Philadelphia

Mon 30/6

19:50-08:05

Nonstop7h 15m

£473

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 23/6

11:45-23:10

1 stop16h 25m

Philadelphia

Mon 30/6

12:09-13:30

1 stop20h 21m

£475

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 56 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 9 June 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 16 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 19 hours 29 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 13 June 2025.
To help decide which airline to fly to Philadelphia, see what other customers have to say about Delta, KLM and Austrian Airlines. 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.

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 £34, while return flights cost around £37.

  • How much is a return flight to Philadelphia?

    A return flight to Philadelphia will typically cost around £197, however they can be found for as little as £50.

  • 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 15 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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