London (LHR) → Philadelphia (PHL)

5,690 km
7h 37m flight
From $760
Philadelphia destination photo

About London to Philadelphia Flights

Discover the best flights from London to Philadelphia, covering 5,690 km in approximately 7h 37m. London (LHR) to Philadelphia (PHL) is one of the major long-haul routes connecting United Kingdom and United States. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from London to Philadelphia.

12-Month Price History

Flight prices from London to Philadelphia vary significantly throughout the year. February typically offers the best deals with average prices around $1077, while July sees the highest prices, averaging $1825. Savvy travelers can save up to 41% by choosing their travel dates wisely.

Best Time to Fly

Cheapest Month

February

Save up to 40% on average

Most Expensive

July

Peak season pricing

Book in Advance

132 days

For best prices

Booking Tips

For the best prices on London to Philadelphia flights, we recommend booking 76 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.

Airlines Serving This Route

American Airlines

AA

Economy

$1600

Business

$5720

First

$9910

Piedmont Airlines

PT

Economy

$1790

Business

$5500

First

$10250

United Airlines

UA

Economy

$1800

Business

$6570

First

$9420

UPS Airlines

5X

Economy

$1810

Business

$6820

First

$10540

Delta Air Lines

DL

Economy

$2130

Business

$6130

First

$11100

British Airways

BA

Economy

$2200

Business

$7190

First

$9780

Air France

AF

Economy

$2240

Business

$7650

First

$10180

Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.

Alternative Flight Options

Philadelphia destination photo

LondonPhiladelphia

Gatwick (LGW) to Philadelphia International (PHL)

Distance: 5,719 km

Average price: $1245

View this route →
Philadelphia destination photo

BirminghamPhiladelphia

Birmingham (BHX) to Philadelphia International (PHL)

Distance: 5,573 km

Average price: $1217

View this route →
Philadelphia destination photo

BirminghamPhiladelphia

Birmingham (BHX) to Philadelphia International (PHL)

Distance: 5,573 km

Average price: $1217

View this route →
Philadelphia destination photo

BristolPhiladelphia

Bristol (BRS) to Philadelphia International (PHL)

Distance: 5,543 km

Average price: $1211

View this route →

Don't Forget Travel Insurance!

Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to Philadelphia, United States.

  • Medical coverage up to $250,000
  • Trip interruption & delays covered
  • Lost luggage protection included

From just $45/month • Works in 180+ countries • COVID-19 coverage included

Get Travel Insurance Quote

Trusted by 100,000+ travelers

Frequently Asked Questions

How long is the flight from London to Philadelphia?

The flight time from London (LHR) to Philadelphia (PHL) is approximately 7 hours and 37 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.

What is the distance between London and Philadelphia?

The aerial distance between London and Philadelphia is 5,690 kilometers (3,536 miles). This is the straight-line distance, which is used to calculate flight times.

Which airlines fly from London to Philadelphia?

Several airlines operate flights between London and Philadelphia, including British Airways, Piedmont Airlines, UPS Airlines and 4 more airlines. Direct flights are available on this route.

What is the cheapest month to fly from London to Philadelphia?

Based on historical data, February typically offers the lowest airfares for flights from London to Philadelphia. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.

How far in advance should I book my flight to Philadelphia?

For the best prices on London to Philadelphia flights, we recommend booking 70 days in advance. International flights generally require earlier booking than domestic routes.

Do I need a visa to travel from London to Philadelphia?

Visa requirements depend on your nationality and the purpose of your visit. Citizens of United Kingdom traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.

What is the time difference between London and Philadelphia?

London operates on Europe/London time zone, while Philadelphia is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.