British Airways flights from London Heathrow Airport to Philadelphia (LHR - PHL)

LHR — PHL
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights users flying from London to Philadelphia on British Airways typically fly into Philadelphia and depart from London Heathrow. Select your dates above for pricing.

British Airways flights from Heathrow to Philadelphia in 2025

Find detailed information about British Airways flights from Heathrow to Philadelphia. Explore the options provided by British Airways to plan your journey from Heathrow to Philadelphia. Data last updated 18 September 2025.

One-way from

£360

Return from

£440

Popular in

December

Cheapest in

March

Average price (all airlines)

£491
British Airways
  • British Airways
  • 17/12
  • 1 total stop
  • 12h 25m total
  • London to Philadelphia
British Airways
  • British Airways
  • 17/11-1/12
  • 1 total stop
  • 19h 30m total
  • London to Philadelphia
Highest demand for flights from London Heathrow to Philadelphia; 3% potential price increase.
Best time to find cheap flights from London Heathrow to Philadelphia; 2% potential price drop.
Average price for all London Heathrow to Philadelphia flights (one-way and round-trip).
  • Can I get a flight from London Heathrow Airport to Philadelphia on British Airways for under £700?

    Cheapflights currently has 8 LHR-PHL flights for under £700. Flights to Philadelphia will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

  • How do most travelers feel about British Airways?

    When planning your LHR-PHL trip, keep in mind that British Airways is typically rated 7.4/10. This rating comes from 8,926 reviews by Cheapflights users who have traveled with British Airways.

Find British Airways flight deals from Heathrow to Philadelphia

Cheapest British Airways flights from Heathrow to Philadelphia
Explore the most affordable British Airways flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 18 September 2025.

Tue 23/910:05LHR - PHL
Nonstop8h 00mBritish Airways
Wed 1/1015:40PHL - LHR
1 stop11h 10mBritish Airways
Deal found 16/9£445
Wed 24/912:30LHR - PHL
Nonstop8h 00mBritish Airways
Tue 30/915:40PHL - LHR
1 stop11h 10mBritish Airways
Deal found 17/9£448
Wed 8/1008:55LHR - PHL
1 stop13h 58mBritish Airways
Mon 13/1018:30PHL - LHR
Nonstop7h 10mBritish Airways
Deal found 16/9£450

Travel insights for British Airways flights from Heathrow to Philadelphia

Get recent, data-driven insights about British Airways flights from Heathrow to Philadelphia including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Philadelphia with British Airways?

Use this chart to determine the optimal time to book a return flight from Heathrow to Philadelphia. Price data was last updated on 12 September 2025.

Booking with British Airways 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Philadelphia with British Airways?

Currently, the most affordable month to book a British Airways flight from London Heathrow Airport to Philadelphia in February, with an average price of £316. Conversely, traveling with British Airways from London Heathrow Airport to Philadelphia in July will be the most expensive, with an average cost of £348. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Best time to book a flight from Heathrow to Philadelphia

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

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Other British Airways flights from Heathrow

Browse through other British Airways flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 18 September 2025.

See what others are saying about British Airways

Read reviews and see what other travellers are saying about their experiences with British Airways. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing British Airways for your next flight. Reviews last updated 18 September 2025.
British Airways
6.7
Okay
7,367 reviews
Overview

Comfort

6.7

Entertainment

6.4

Food

6.3

Boarding

6.9

Crew

7.6

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