How long is the flight from Pennsylvania to London Heathrow Airport?

There are many flights that can get you from Pennsylvania to London Heathrow Airport in 10h 30m. Fly via Scandinavian Airlines, United Airlines, or Icelandair to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3454 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Pennsylvania to London Heathrow Airport?

The most popular flight routes from Pennsylvania to London Heathrow Airport are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and Washington, D.C. Dulles Intl - London Heathrow.

What are the cheapest flights from Pennsylvania to London Heathrow Airport?

The cheapest flight price from Pennsylvania to London Heathrow Airport is £241. On average you can expect to pay £900. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £351.

What are the most reliable airlines from Pennsylvania to London Heathrow Airport?

The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Malaysia Airlines (77%), American Airlines (75%) and Finnair (75%).

What are the most popular airlines that fly from Pennsylvania to London Heathrow Airport?

Before booking your flight from Pennsylvania to London Heathrow Airport check out the most popular airlines for this route: British Airways, United Airlines or American Airlines.

Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?

Yes. In addition to deals on Pennsylvania to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Pennsylvania to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Heathrow.

Can I find deals for business class flights from Pennsylvania to Heathrow?

Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£152+ Cheap Flights from Pennsylvania to London Heathrow Airport

Cheap flight deals from Pennsylvania to Heathrow

Enter your travel dates to find the best prices.

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Best

Direct

Last-minute

One-way

Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Wed 4/1117:35 -

1 stop23h 05m

Sun 8/1106:40 -

1 stop14h 05m

Deal found 24/8£439

Thu 15/1017:10 -

2 stops21h 45m

Mon 19/1007:05 -

1 stop13h 35m

Deal found 24/8£439

Sun 11/1018:55 -

1 stop21h 45m

Mon 19/1007:05 -

1 stop13h 35m

Deal found 25/8£440

Sun 11/1018:55 -

1 stop21h 45m

Sat 17/1015:35 -

1 stop29h 05m

Deal found 25/8£441

Mon 5/1018:55 -

1 stop17h 45m

Fri 23/1017:30 -

1 stop27h 10m

Deal found 28/8£441

Mon 12/1017:10 -

1 stop11h 25m

Sat 17/1015:35 -

1 stop29h 05m

Deal found 24/8£442

Mon 12/1017:10 -

2 stops14h 45m

Mon 19/1007:05 -

1 stop13h 35m

Deal found 28/8£443

Wed 21/1017:10 -

1 stop11h 25m

Wed 4/1121:05 -

2 stops23h 40m

Deal found 27/8£444

Wed 21/1017:10 -

1 stop11h 25m

Mon 2/1106:40 -

1 stop14h 05m

Deal found 27/8£446

Thu 31/1216:20 -

1 stop14h 00m

Tue 5/113:00 -

1 stop11h 06m

Deal found 25/8£465

Wed 11/1117:09 -

1 stop12h 16m

Sun 15/1117:15 -

1 stop20h 35m

Deal found 27/8£483

Tue 27/1017:04 -

1 stop13h 21m

Tue 3/1117:15 -

1 stop20h 35m

Deal found 25/8£484

Best flights from Pennsylvania to Heathrow
Discover carefully curated flight deals from Pennsylvania to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Sat 3/1018:55 -

1 stop33h 25m

Tue 6/1007:05 -

1 stop13h 35m

Deal found 25/8£461

Fri 9/1015:30 -

1 stop13h 30m

Sun 11/1006:50 -

2 stops16h 51m

Deal found 25/8£511

Tue 8/920:25 -

1 stop10h 30m

Mon 8/220:35 -

1 stop26h 50m

Deal found 28/8£571

Mon 23/1116:40 -

1 stop12h 00m

Thu 26/1110:30 -

1 stop13h 25m

Deal found 27/8£579

Sat 24/1009:35 -

Nonstop7h 05m

Thu 12/1107:30 -

1 stop16h 35m

Deal found 25/8£596

Tue 29/918:00 -

Nonstop7h 20m

Mon 5/1011:45 -

1 stop10h 20m

Deal found 25/8£601

Thu 22/1014:59 -

1 stop10h 56m

Fri 30/1011:10 -

1 stop15h 33m

Deal found 28/8£611

Tue 15/918:00 -

1 stop14h 15m

Sat 19/906:15 -

2 stops17h 17m

Deal found 26/8£612

Wed 7/1017:45 -

Nonstop7h 35m

Tue 13/1011:30 -

1 stop12h 20m

Deal found 28/8£632

Sat 24/1010:22 -

1 stop16h 33m

Mon 9/1109:20 -

1 stop13h 12m

Deal found 25/8£655

Thu 15/1018:03 -

1 stop14h 12m

Thu 29/1020:25 -

2 stops29h 54m

Deal found 25/8£663

Fri 9/1020:20 -

1 stop15h 05m

Mon 12/1018:40 -

1 stop27h 05m

Deal found 26/8£695

Tue 3/1109:23 -

3 stops31h 12m

Sun 8/1118:30 -

2 stops30h 30m

Deal found 28/8£727

Fri 22/117:35 -

2 stops34h 20m

Sun 31/119:30 -

1 stop25h 15m

Deal found 24/8£469

Wed 2/1217:35 -

2 stops14h 20m

Sun 6/1206:40 -

1 stop14h 05m

Deal found 28/8£469

Mon 7/1214:10 -

2 stops14h 55m

Wed 9/1207:40 -

1 stop16h 23m

Deal found 25/8£562

Fri 23/1020:15 -

Nonstop7h 35m

Sun 1/1106:20 -

1 stop11h 35m

Deal found 26/8£601

Sat 19/918:55 -

2 stops14h 40m

Mon 5/1007:05 -

2 stops14h 55m

Deal found 27/8£513

Wed 7/1018:35 -

Nonstop7h 20m

Mon 12/1018:40 -

1 stop27h 05m

Deal found 25/8£652

Tue 10/1108:20 -

Nonstop7h 15m

Mon 16/1112:05 -

1 stop13h 25m

Deal found 27/8£593

Fri 6/1106:25 -

1 stop9h 20m

Wed 11/1109:20 -

1 stop12h 00m

Deal found 24/8£662

Thu 1/1013:15 -

1 stop12h 30m

Thu 8/1011:45 -

1 stop12h 30m

Deal found 24/8£604

Sat 10/1018:55 -

2 stops17h 05m

Sat 17/1017:30 -

2 stops28h 30m

Deal found 24/8£522

Sun 27/921:50 -

Nonstop7h 15m

Tue 6/1016:40 -

Nonstop8h 10m

Deal found 28/8£702

Sun 1/1120:00 -

Nonstop7h 25m

Sun 8/1112:05 -

1 stop13h 25m

Deal found 25/8£593

Sun 20/906:30 -

1 stop9h 15m

Tue 29/908:40 -

1 stop12h 19m

Deal found 24/8£662

Tue 1/1212:10 -

3 stops28h 25m

Wed 9/1218:30 -

2 stops31h 01m

Deal found 28/8£735

Tue 8/917:00 -

1 stop12h 40m

Sat 13/212:55 -

1 stop14h 31m

Deal found 27/8£618

Fri 16/1022:05 -

Nonstop7h 35m

Mon 19/1013:50 -

1 stop31h 55m

Deal found 28/8£688

Fri 11/1215:14 -

1 stop11h 36m

Sun 10/111:45 -

2 stops15h 53m

Deal found 27/8£758

Find flight deals from Pennsylvania to Heathrow

Round-trip from	£439
One-way from	£152
Popular in	June
Cheapest in	January
Average price	£765
Good round-trip deal	£722 or less

Scandinavian Airlines
4/11-8/11
2 total stops
37h 10m total
Pennsylvania to London

Search Deals

British Airways
19/11
1 total stop
15h 26m total
Pennsylvania to London

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (£169 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from Pennsylvania to London Heathrow.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sat 3/10

18:55-09:20

1 stop33h 25m

London Heathrow

Tue 6/10

07:05-15:40

1 stop13h 35m

£461

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Fri 22/1

17:35-08:55

2 stops34h 20m

London Heathrow

Sun 31/1

19:30-15:45

1 stop25h 15m

£469

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 2/12

17:35-12:55

2 stops14h 20m

London Heathrow

Sun 6/12

06:40-15:45

1 stop14h 05m

£469

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 9/10

15:30-10:00

1 stop13h 30m

London Heathrow

Sun 11/10

06:50-18:41

2 stops16h 51m

£511

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sat 19/9

18:55-14:35

2 stops14h 40m

London Heathrow

Mon 5/10

07:05-17:00

2 stops14h 55m

£513

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sat 10/10

18:55-17:00

2 stops17h 05m

London Heathrow

Sat 17/10

17:30-17:00

2 stops28h 30m

£522

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 7/12

14:10-10:05

2 stops14h 55m

London Heathrow

Wed 9/12

07:40-19:03

1 stop16h 23m

£562

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Tue 8/9

20:25-11:55

1 stop10h 30m

London Heathrow

Mon 8/2

20:35-18:25

1 stop26h 50m

£571

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Mon 23/11

16:40-09:40

1 stop12h 00m

London Heathrow

Thu 26/11

10:30-18:55

1 stop13h 25m

£579

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Tue 10/11

08:20-20:35

Nonstop7h 15m

London Heathrow

Mon 16/11

12:05-20:30

1 stop13h 25m

£593

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Pennsylvania to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pennsylvania with our price prediction graph.

LGA-LHR

JFK-LHR

IAD-LHR

EWR-LHR

PHL-LHR

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.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to London Heathrow Airport

USPA-LHR

LGA-LHR

JFK-LHR

IAD-LHR

EWR-LHR

What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £522). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £1,047). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to London Heathrow Airport as you normally would.

Weekly flight availability from Pennsylvania to London Heathrow Airport

The most flights from USPA to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight from Pennsylvania to London Heathrow Airport?

Airfare is typical for this route at the moment.

Pennsylvania to London Heathrow Airport flights typically cost between £555 and £828 in December.
The cheapest return price found within the last 5 days was £627 on British Airways (6 Dec–12 Dec).

How far ahead should I book a flight from Pennsylvania to London Heathrow Airport?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Pennsylvania to London Heathrow Airport?
There are many flights that can get you from Pennsylvania to London Heathrow Airport in 10h 30m. Fly via Scandinavian Airlines, United Airlines, or Icelandair to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3454 mi. This flight may include one or multiple stops.
What are the most popular routes from Pennsylvania to London Heathrow Airport?
The most popular flight routes from Pennsylvania to London Heathrow Airport are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and Washington, D.C. Dulles Intl - London Heathrow.
What are the most reliable airlines from Pennsylvania to London Heathrow Airport?
The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Malaysia Airlines (77%), American Airlines (75%) and Finnair (75%).
What are the cheapest flights from Pennsylvania to London Heathrow Airport?
The cheapest flight price from Pennsylvania to London Heathrow Airport is £241. On average you can expect to pay £900. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £351.
Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?
Yes. In addition to deals on Pennsylvania to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Pennsylvania to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Heathrow.
Can I find deals for business class flights from Pennsylvania to Heathrow?
Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £522). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £1,047). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Pennsylvania to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£421	Average£640	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£516	Average£792	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	Cheapest£1,020	Average£1,124	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Pennsylvania to Heathrow?

Cheapflights makes it easy to find Pennsylvania to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pennsylvania to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Pennsylvania to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Pennsylvania to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Pennsylvania to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Pennsylvania to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Pennsylvania to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Pennsylvania to London Heathrow Airport from £152

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pennsylvania to Heathrow

Cheapest flights from Pennsylvania to HeathrowExplore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Pennsylvania to HeathrowDiscover carefully curated flight deals from Pennsylvania to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Discover carefully curated flight deals from Pennsylvania to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Direct flights from Pennsylvania to HeathrowExplore direct flight options from Pennsylvania to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2026.

Explore direct flight options from Pennsylvania to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2026.

Last-minute flights from Pennsylvania to HeathrowDiscover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 29 August 2026 and is based on user searches.

Discover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Pennsylvania to HeathrowSearch for one-way flight options from Pennsylvania to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Search for one-way flight options from Pennsylvania to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Find flight deals from Pennsylvania to Heathrow

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Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Best time to book a flight from Pennsylvania to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pennsylvania with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

What is the cheapest time of day to fly from PA to LHR?

Find hourly flight availability from Pennsylvania to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to London Heathrow Airport as you normally would.

Weekly flight availability from Pennsylvania to London Heathrow Airport

The most flights from USPA to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight from Pennsylvania to London Heathrow Airport?

Airfare is typical for this route at the moment.

Pennsylvania to London Heathrow Airport flights typically cost between £555 and £828 in December.The cheapest return price found within the last 5 days was £627 on British Airways (6 Dec–12 Dec).

How far ahead should I book a flight from Pennsylvania to London Heathrow Airport?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Pennsylvania to London Heathrow Airport?

What are the most popular routes from Pennsylvania to London Heathrow Airport?

What are the most reliable airlines from Pennsylvania to London Heathrow Airport?

What are the cheapest flights from Pennsylvania to London Heathrow Airport?

Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?

How can I find direct flights from Pennsylvania to Heathrow?

Can I find deals for business class flights from Pennsylvania to Heathrow?

What is the cheapest month to book a flight from Pennsylvania to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pennsylvania to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

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

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Pennsylvania to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2026.

Pennsylvania and Heathrow flights

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Top 3 airlines flying from Pennsylvania to Heathrow

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Can Cheapflights find flights from Pennsylvania to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Pennsylvania to Heathrow become cheaper?

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Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Pennsylvania to Heathrow
Discover carefully curated flight deals from Pennsylvania to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Direct flights from Pennsylvania to Heathrow
Explore direct flight options from Pennsylvania to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2026.

Last-minute flights from Pennsylvania to Heathrow
Discover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Pennsylvania to Heathrow
Search for one-way flight options from Pennsylvania to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Pennsylvania to London Heathrow Airport flights typically cost between £555 and £828 in December.
The cheapest return price found within the last 5 days was £627 on British Airways (6 Dec–12 Dec).