How does KAYAK find such low prices on flights from London to Pennsylvania?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Pennsylvania.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Pennsylvania?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from London to Pennsylvania?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Pennsylvania with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Pennsylvania?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Cheap Flights from London to Pennsylvania

Save 21% or more on flights. Compare deals from all over the web.

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Filter searches by price, airline and more to find your best flights.

Flight Deals

One-wayRound-trip

Philadelphia1 stop$792

Pittsburgh1 stop$809

Philadelphia1 stop$792

Pittsburgh1 stop$809

Book Cheap London to Pennsylvania Plane Tickets

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from London to Pennsylvania

Thu, Oct 29 - Thu, Nov 5

6:45 am - 5:10 pmSTN London Stansted-PHL Philadelphia

14h 25m1 stop Dublin

5:40 pm - 8:05 amPHL Philadelphia-STN London Stansted

9h 25m1 stop Dublin

$792Multiple Airlines

Tue, Dec 8 - Tue, Dec 29

7:15 am - 4:10 pmSTN London Stansted-PHL Philadelphia

13h 55m1 stop Dublin

5:40 pm - 9:20 amPHL Philadelphia-STN London Stansted

10h 40m1 stop Dublin

$794Multiple Airlines

Sat, Dec 26 - Wed, Dec 30

6:35 am - 4:10 pmSTN London Stansted-PHL Philadelphia

14h 35m1 stop Dublin

5:40 pm - 8:15 amPHL Philadelphia-STN London Stansted

9h 35m1 stop Dublin

$799Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

6:35 am - 5:10 pmSTN London Stansted-PHL Philadelphia

14h 35m1 stop Dublin

5:40 pm - 8:30 amPHL Philadelphia-STN London Stansted

9h 50m1 stop Dublin

$808Multiple Airlines

Sat, Nov 14 - Sat, Nov 21

6:35 am - 7:20 pmSTN London Stansted-PIT Pittsburgh

17h 45m1 stop Dublin

8:50 pm - 12:00 pmPIT Pittsburgh-STN London Stansted

10h 10m1 stop Dublin

$809Multiple Airlines

Tue, Dec 8 - Tue, Dec 29

9:10 am - 4:10 pmSTN London Stansted-PHL Philadelphia

36h 00m2 stops Berlin Brandenburg Dublin

5:40 pm - 9:20 amPHL Philadelphia-STN London Stansted

10h 40m1 stop Dublin

$809Multiple Airlines

Mon, Dec 7 - Mon, Dec 28

5:40 pm - 4:10 pmSTN London Stansted-PHL Philadelphia

27h 30m2 stops Berlin Brandenburg Dublin

5:40 pm - 9:45 amPHL Philadelphia-STN London Stansted

11h 05m1 stop Dublin

$810Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

6:30 am - 4:10 pmSTN London Stansted-PHL Philadelphia

14h 40m1 stop Dublin

9:10 am - 7:50 amPHL Philadelphia-STN London Stansted

17h 40m2 stops Boston Logan Intl Dublin

$811Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

6:30 am - 4:10 pmSTN London Stansted-PHL Philadelphia

14h 40m1 stop Dublin

9:10 am - 7:50 amPHL Philadelphia-STN London Stansted

17h 40m2 stops Boston Logan Intl Dublin

$813Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

8:55 am - 4:10 pmSTN London Stansted-PHL Philadelphia

12h 15m1 stop Dublin

10:27 am - 8:15 amPHL Philadelphia-STN London Stansted

16h 48m2 stops Boston Logan Intl Dublin

$813Multiple Airlines

Recent last minute flight deals from London to Pennsylvania

Mon, Oct 5 - Mon, Oct 12

7:00 am - 6:55 pmSTN London Stansted-PHL Philadelphia

16h 55m1 stop Dublin

8:25 pm - 12:50 pmPHL Philadelphia-STN London Stansted

11h 25m1 stop Dublin

$879Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

7:00 am - 6:55 pmSTN London Stansted-PHL Philadelphia

16h 55m1 stop Dublin

8:25 pm - 9:20 pmPHL Philadelphia-STN London Stansted

19h 55m1 stop Dublin

$954Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

8:30 am - 6:40 pmSTN London Stansted-PIT Pittsburgh

15h 10m1 stop Dublin

8:10 pm - 2:30 pmPIT Pittsburgh-STN London Stansted

13h 20m1 stop Dublin

$1,038Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

1:20 pm - 10:04 pmSTN London Stansted-PHL Philadelphia

13h 44m2 stops Dublin Boston Logan Intl

8:25 pm - 12:50 pmPHL Philadelphia-STN London Stansted

11h 25m1 stop Dublin

$1,111Multiple Airlines

Mon, Oct 5 - Wed, Oct 7

10:45 pm - 6:55 pmSTN London Stansted-PHL Philadelphia

25h 10m1 stop Dublin

8:25 pm - 11:35 amPHL Philadelphia-STN London Stansted

10h 10m1 stop Dublin

$1,149Multiple Airlines

Fri, Oct 9 - Mon, Oct 12

6:35 am - 6:55 pmSTN London Stansted-PHL Philadelphia

17h 20m1 stop Dublin

8:25 pm - 5:05 pmPHL Philadelphia-STN London Stansted

15h 40m1 stop Dublin

$1,193Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

8:15 pm - 2:48 pmSTN London Stansted-PIT Pittsburgh

23h 33m3 stops Sofia Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

8:25 pm - 9:55 pmPIT Pittsburgh-STN London Stansted

20h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl

$1,215Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

8:30 am - 7:15 pmSTN London Stansted-PIT Pittsburgh

15h 45m2 stops Dublin Reykjavik Keflavik Intl

8:25 pm - 9:55 pmPIT Pittsburgh-STN London Stansted

20h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl

$1,241Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

7:00 am - 7:15 pmSTN London Stansted-PIT Pittsburgh

17h 15m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

8:10 pm - 7:50 amPIT Pittsburgh-STN London Stansted

30h 40m1 stop Dublin

$1,268Multiple Airlines

Sun, Oct 4 - Wed, Oct 14

10:50 am - 11:44 pmSTN London Stansted-PIT Pittsburgh

41h 54m2 stops Istanbul New York John F Kennedy Intl

6:30 am - 9:55 amPIT Pittsburgh-STN London Stansted

46h 25m2 stops New York John F Kennedy Intl Istanbul

$1,342Turkish Airlines

Booking Insights

KAYAK's insights & trends for London to Pennsylvania flights

Get data-powered insights and trends into flights from London to Pennsylvania to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from London Stansted Airport to Pennsylvania take?

The duration of a flight to Pennsylvania depends on your arrival airport. The shortest routes to Pennsylvania from London Stansted Airport are to Philadelphia, which takes 12h 30m, and Pittsburgh, which takes 17h 50m.

Find deals

Cheapest flight	$477

Flight from London Stansted Airport to Pittsburgh

How does KAYAK find such low prices on flights from London to Pennsylvania?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Pennsylvania.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Pennsylvania?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from London to Pennsylvania?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Pennsylvania with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Pennsylvania?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

More options for your flight from London to Pennsylvania

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$477 Find Cheap Flights from London to Pennsylvania - Compare and Save