£209+ 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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
— PHL
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Philadelphia in 2026

Find the latest flights to Philadelphia in 2026, 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 January 2026.

Return from

£455

One-way from

£214

Popular in

December

Cheapest in

January

Average price

£478

Good round-trip deal

£521 or less

Good one-way deal

£405 or less
Iberia
  • Iberia
  • 24/1-2/2
  • 1 total stop
  • 18h 15m total
  • London to Philadelphia
9/2
  • 9/2
  • 3 total stops
  • 34h 01m total
  • London to Philadelphia
Highest demand for flights based on searches. 3% potential increase in price (£18 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for return flights in January 2026
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

Enter your travel dates to find the best prices.

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 January 2026.

Sat 24/107:50
LHR
-
PHL
1 stop11h 15m
Multiple Airlines
Mon 2/219:50
PHL
-
LHR
Nonstop7h 00m
Multiple Airlines
Deal found 13/1£455
Thu 5/207:50
LHR
-
PHL
1 stop11h 15m
British Airways
Mon 9/218:35
PHL
-
LHR
Nonstop7h 00m
British Airways
Deal found 12/1£456
Mon 2/214:00
LGW
-
PHL
1 stop34h 48m
Multiple Airlines
Thu 5/220:43
PHL
-
LGW
1 stop32h 17m
Multiple Airlines
Deal found 13/1£456
Mon 2/206:10
STN
-
PHL
3 stops21h 36m
Multiple Airlines
Thu 5/215:30
PHL
-
STN
3 stops21h 00m
Multiple Airlines
Deal found 13/1£457
Fri 1/513:25
LHR
-
PHL
1 stop10h 30m
British Airways
Tue 5/517:55
PHL
-
LHR
1 stop9h 05m
British Airways
Deal found 12/1£458
Sat 14/306:30
LHR
-
PHL
2 stops20h 16m
United Airlines
Wed 18/312:10
PHL
-
LHR
2 stops14h 30m
United Airlines
Deal found 12/1£459
Tue 5/506:30
LHR
-
PHL
1 stop14h 30m
Lufthansa
Mon 25/517:35
PHL
-
LHR
1 stop12h 05m
Lufthansa
Deal found 12/1£460
Mon 9/206:50
LCY
-
PHL
1 stop12h 15m
British Airways
Mon 16/219:45
PHL
-
LCY
1 stop13h 50m
British Airways
Deal found 12/1£461
Wed 11/210:15
LHR
-
PHL
Nonstop8h 15m
Iberia
Mon 23/219:40
PHL
-
LHR
Nonstop7h 10m
Iberia
Deal found 11/1£461
Wed 25/211:20
LGW
-
PHL
1 stop27h 15m
American Airlines
Wed 4/311:43
PHL
-
LGW
1 stop14h 47m
American Airlines
Deal found 11/1£461
Mon 26/110:15
LHR
-
PHL
Nonstop8h 15m
Finnair
Mon 2/219:50
PHL
-
LHR
Nonstop7h 00m
Finnair
Deal found 12/1£462
Mon 16/318:15
LCY
-
PHL
1 stop26h 50m
Lufthansa
Sun 22/318:40
PHL
-
LCY
1 stop19h 00m
Lufthansa
Deal found 13/1£462

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 January 2026.
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

Thu 5/2

07:50-14:05

1 stop11h 15m

Philadelphia

Mon 9/2

18:35-06:35

Nonstop7h 00m

£456

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 2/2

06:10-22:46

3 stops21h 36m

Philadelphia

Thu 5/2

15:30-17:30

3 stops21h 00m

£457

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 1/5

06:20-14:50

1 stop13h 30m

Philadelphia

Mon 4/5

17:55-08:00

1 stop9h 05m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 1/5

08:50-14:50

1 stop11h 00m

Philadelphia

Wed 6/5

14:46-08:00

1 stop12h 14m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 1/5

13:25-18:55

1 stop10h 30m

Philadelphia

Thu 7/5

17:55-08:00

1 stop9h 05m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sun 3/5

13:25-18:55

1 stop10h 30m

Philadelphia

Wed 6/5

17:55-08:00

1 stop9h 05m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 2/5

07:40-18:55

1 stop16h 15m

Philadelphia

Tue 5/5

14:46-07:10

1 stop11h 24m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 4/5

08:50-14:50

1 stop11h 00m

Philadelphia

Sat 9/5

14:46-09:35

1 stop13h 49m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 5/5

06:20-14:50

1 stop13h 30m

Philadelphia

Fri 8/5

14:46-08:00

1 stop12h 14m

£458

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 5/5

06:20-14:50

1 stop13h 30m

Philadelphia

Sat 9/5

17:26-08:05

1 stop9h 39m

£458

Flights are sorted by cheapest return flights first.

Deals found on 13/1

Showing 1-10 of 60 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 January 2026.

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 20 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 12 hours 43 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.

Weekly flight availability to Philadelphia

The most flights from London to Philadelphia 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).

What are the cheapest airlines that fly to Philadelphia?

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

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 January 2026.
Read through reviews of airlines serving the United States, such as Finnair, United Airlines, andAer Lingus. 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

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Boarding

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Boarding

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Boarding

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Boarding

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Boarding

7.7

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 10 flights from London to Philadelphia per day from 9 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 £58, while return flights cost around £107.

  • How much is a return flight to Philadelphia?

    A return flight to Philadelphia will typically cost around £107, however they can be found for as little as £107.

  • 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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