When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 21% on flights from London to Pennsylvania compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $663. For sooner than that we have options available in the next 3 days from $800.
Our data shows that February tends to be the cheapest month to fly to Pennsylvania from London. Users have commonly found prices around $658 for the month, but tickets can be as low as $440. Due to multiple factors, prepare for potentially higher prices in August.
When flying from London to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$540 - $679
Route
Depart
Return
Price
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Sun 9/8
1 stop27h 55m
Philadelphia
Mon 9/23
1 stop32h 05m
London GatwickPhiladelphia
LGW - PHL
LGWPHL
London Gatwick
Tue 6/4
1 stop12h 43m
Philadelphia
Tue 6/11
1 stop10h 20m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Wed 9/18
1 stop12h 00m
Philadelphia
Fri 9/27
1 stop32h 05m
London GatwickPhiladelphia
LGW - PHL
LGWPHL
London Gatwick
Thu 5/16
2 stops21h 33m
Philadelphia
Tue 9/17
1 stop14h 51m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Thu 9/26
Nonstop7h 55m
Philadelphia
Wed 10/2
Nonstop7h 10m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Wed 9/18
1 stop11h 01m
Philadelphia
Fri 9/27
2 stops22h 45m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Mon 6/17
1 stop13h 30m
Philadelphia
Mon 6/24
1 stop14h 20m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Mon 6/3
2 stops18h 06m
Philadelphia
Mon 6/10
2 stops16h 45m
London HeathrowPhiladelphia
LHR - PHL
LHRPHL
London Heathrow
Tue 5/21
Nonstop7h 45m
Philadelphia
Mon 6/3
1 stop10h 50m
No data available for this route at this time. Please check back soon.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
28%of flight departures | Morning6 am to noon |
71%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Pennsylvania. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
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