How do most travelers feel about British Airways?

When planning your LHR-PHL trip, keep in mind that British Airways is typically rated 6.7/10. This rating comes from 8,106 reviews by Cheapflights users who have traveled with British Airways.

Can I get a flight from London Heathrow Airport to Philadelphia on British Airways for under £820?

Cheapflights currently has 10 LHR-PHL flights for under £820. 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 far ahead should I book a flight from London Heathrow Airport to Philadelphia with British Airways?

Booking with British Airways 36 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 £519. Conversely, traveling with British Airways from London Heathrow Airport to Philadelphia in July will be the most expensive, with an average cost of £808. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly British Airways flight availability from London Heathrow Airport to Philadelphia

The most British Airways flights from LHR to PHL are scheduled on a Monday (3 on average). You will have fewer British Airways flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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.

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).

£348+ British Airways Flights from Heathrow to Philadelphia

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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 11 July 2026.

Mon 31/806:20

LHR

PHL

1 stop14h 50m

British Airways

Thu 10/918:45

PHL

LHR

Nonstop7h 05m

British Airways

Deal found 10/7£627

Mon 31/806:20

LHR

PHL

1 stop14h 50m

British Airways

Tue 8/922:15

PHL

LHR

Nonstop7h 05m

British Airways

Deal found 9/7£628

Mon 31/806:15

LHR

PHL

1 stop12h 25m

British Airways

Sun 6/918:45

PHL

LHR

Nonstop7h 05m

British Airways

Deal found 9/7£669

How do most travelers feel about British Airways?
When planning your LHR-PHL trip, keep in mind that British Airways is typically rated 6.7/10. This rating comes from 8,106 reviews by Cheapflights users who have traveled with British Airways.
Can I get a flight from London Heathrow Airport to Philadelphia on British Airways for under £820?
Cheapflights currently has 10 LHR-PHL flights for under £820. 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.

British Airways flights from Heathrow to Philadelphia in 2026

One-way from	£348
Return from	£617
Popular in	July
Cheapest in	November
Average price (all airlines)	£785

British Airways
17/9
Nonstop
7h 55m total
London to Philadelphia

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British Airways
28/9-12/10
Nonstop
15h 00m total
London to Philadelphia

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Highest demand for flights from London Heathrow to Philadelphia; 15% potential price increase.

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Best time to find cheap flights from London Heathrow to Philadelphia; 2% potential price drop.

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Average price for all London Heathrow to Philadelphia flights (one-way and round-trip).

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When is the best time to book a flight to Philadelphia with British Airways?

The best time to book a flight to Philadelphia with British Airways is 36 days before departure. On average, fares are higher if you book on the same day as departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Philadelphia?

For Economy class flights, the cheapest month to fly this route is February. The most expensive months are July and June.

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.

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British Airways

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8,107 reviews

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

Find British Airways flight deals from Heathrow to Philadelphia

Cheapest British Airways flights from Heathrow to PhiladelphiaExplore the most affordable British Airways flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 11 July 2026.

Explore the most affordable British Airways flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 11 July 2026.

Best British Airways flights from Heathrow to PhiladelphiaDiscover carefully curated British Airways flight deals from Heathrow to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Discover carefully curated British Airways flight deals from Heathrow to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Direct British Airways flights from Heathrow to PhiladelphiaExplore direct British Airways flight options from Heathrow to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 July 2026.

Explore direct British Airways flight options from Heathrow to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 July 2026.

Last-minute British Airways flights from Heathrow to PhiladelphiaDiscover last-minute British Airways flight deals from Heathrow to Philadelphia. Data last updated 11 July 2026 and is based on user searches.

Discover last-minute British Airways flight deals from Heathrow to Philadelphia. Data last updated 11 July 2026 and is based on user searches.

One-way British Airways flights to PhiladelphiaSearch for one-way British Airways flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.

Search for one-way British Airways flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.

How do most travelers feel about British Airways?

Can I get a flight from London Heathrow Airport to Philadelphia on British Airways for under £820?

British Airways flights from Heathrow to Philadelphia in 2026

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 11 July 2026.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Philadelphia with British Airways?

Which month is the cheapest to fly Economy class from London Heathrow Airport to Philadelphia?

Weekly British Airways flight availability from London Heathrow Airport to Philadelphia

Rainfall in Philadelphia by month

Temperature in Philadelphia by month

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Philadelphia on another airline

Consider alternative airlines that service the Philadelphia area. Flight routes are based on user searches made on Cheapflights and were last updated on 11 July 2026.

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 11 July 2026.

Complete your trip

Complete your trip to Philadelphia by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines servicing Heathrow and Philadelphia

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Other popular destinations in North America

If Philadelphia is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 11 July 2026.

Popular flights with British Airways

Browse through some of the most popular routes that British Airways offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 11 July 2026.

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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 11 July 2026.

Best British Airways flights from Heathrow to Philadelphia
Discover carefully curated British Airways flight deals from Heathrow to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2026.

Direct British Airways flights from Heathrow to Philadelphia
Explore direct British Airways flight options from Heathrow to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 July 2026.

Last-minute British Airways flights from Heathrow to Philadelphia
Discover last-minute British Airways flight deals from Heathrow to Philadelphia. Data last updated 11 July 2026 and is based on user searches.

One-way British Airways flights to Philadelphia
Search for one-way British Airways flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 11 July 2026.