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 13h 15m. Fly via United Airlines, Delta, or JetBlue to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3533 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 New York LaGuardia - London Heathrow.

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

The cheapest flight price from Pennsylvania to London Heathrow Airport is £529. On average you can expect to pay £958. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £377.

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 (94%), American Airlines (91%) and British Airways (91%).

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.

£217+ 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 27 October 2026.

Mon 7/1217:39 -

1 stop13h 21m

Wed 9/1211:05 -

2 stops34h 53m

Deal found 22/10£574

Thu 10/1219:33 -

1 stop30h 22m

Thu 14/109:20 -

1 stop28h 17m

Deal found 24/10£615

Sun 6/1209:30 -

1 stop16h 25m

Fri 11/1209:20 -

1 stop14h 23m

Deal found 23/10£616

Sun 8/1107:00 -

1 stop18h 55m

Sat 14/1109:20 -

1 stop16h 17m

Deal found 27/10£621

Sun 8/1107:00 -

1 stop18h 55m

Wed 11/1109:20 -

1 stop16h 17m

Deal found 25/10£621

Wed 2/1219:33 -

1 stop30h 22m

Sun 6/1209:20 -

1 stop14h 23m

Deal found 27/10£624

Mon 9/1110:27 -

1 stop15h 28m

Wed 11/1109:20 -

1 stop12h 48m

Deal found 26/10£625

Wed 25/1119:45 -

1 stop30h 10m

Wed 9/1209:20 -

1 stop14h 23m

Deal found 23/10£628

Sat 5/1219:33 -

1 stop30h 22m

Tue 8/1209:20 -

1 stop14h 23m

Deal found 25/10£629

Tue 10/1117:58 -

1 stop31h 57m

Tue 17/1109:20 -

1 stop29h 17m

Deal found 23/10£631

Mon 30/1106:00 -

1 stop10h 40m

Wed 9/1207:25 -

1 stop21h 31m

Deal found 22/10£634

Tue 17/1110:27 -

1 stop15h 28m

Sun 22/1109:20 -

1 stop14h 34m

Deal found 23/10£636

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 27 October 2026.

Mon 7/1214:50 -

2 stops16h 10m

Wed 9/1211:05 -

2 stops34h 53m

Deal found 22/10£577

Tue 5/106:00 -

1 stop19h 25m

Thu 14/106:30 -

2 stops21h 16m

Deal found 22/10£657

Wed 7/412:15 -

1 stop13h 15m

Wed 14/408:40 -

1 stop13h 52m

Deal found 23/10£698

Sun 11/418:45 -

Nonstop7h 05m

Wed 21/413:45 -

Nonstop7h 55m

Deal found 22/10£710

Fri 15/109:30 -

2 stops22h 10m

Tue 26/118:30 -

2 stops30h 39m

Deal found 22/10£724

Wed 25/1118:35 -

Nonstop7h 00m

Wed 9/1206:30 -

1 stop12h 35m

Deal found 26/10£737

Mon 11/113:05 -

2 stops23h 35m

Fri 15/121:05 -

3 stops29h 21m

Deal found 23/10£745

Thu 10/1211:50 -

1 stop19h 10m

Thu 17/1212:35 -

1 stop16h 13m

Deal found 26/10£808

Wed 11/1120:13 -

1 stop29h 27m

Mon 16/1106:50 -

2 stops21h 54m

Deal found 24/10£652

Wed 9/1206:20 -

1 stop10h 20m

Wed 16/1212:20 -

1 stop16h 36m

Deal found 24/10£705

Mon 1/318:35 -

Nonstop7h 00m

Fri 12/313:10 -

Nonstop8h 05m

Deal found 25/10£714

Tue 5/106:20 -

1 stop18h 35m

Thu 14/106:50 -

2 stops15h 09m

Deal found 22/10£660

Tue 12/109:30 -

2 stops31h 05m

Thu 13/511:20 -

2 stops26h 11m

Deal found 26/10£735

Wed 21/414:12 -

2 stops22h 28m

Wed 28/407:05 -

3 stops22h 46m

Deal found 27/10£746

Fri 11/1212:15 -

2 stops13h 10m

Fri 25/1206:30 -

2 stops17h 42m

Deal found 26/10£749

Mon 16/1116:00 -

2 stops22h 30m

Tue 24/1112:15 -

2 stops16h 00m

Deal found 24/10£774

Thu 4/310:35 -

1 stop19h 15m

Wed 10/311:10 -

2 stops17h 29m

Deal found 25/10£660

Wed 2/1207:42 -

1 stop22h 53m

Wed 9/1211:00 -

1 stop17h 59m

Deal found 23/10£737

Sat 9/107:30 -

2 stops27h 00m

Sat 23/119:55 -

3 stops42h 48m

Deal found 27/10£754

Tue 17/1118:07 -

3 stops18h 23m

Sat 21/1118:30 -

2 stops28h 56m

Deal found 26/10£779

Tue 3/1107:21 -

3 stops20h 59m

Mon 9/1106:40 -

2 stops19h 50m

Deal found 24/10£786

Mon 7/1210:35 -

1 stop15h 05m

Mon 14/1209:30 -

2 stops33h 30m

Deal found 23/10£660

Mon 14/1210:27 -

2 stops15h 38m

Mon 21/1206:20 -

2 stops18h 28m

Deal found 25/10£800

Fri 9/418:45 -

Nonstop7h 05m

Thu 15/413:45 -

Nonstop7h 55m

Deal found 22/10£747

Fri 19/209:30 -

2 stops28h 25m

Sun 28/219:55 -

2 stops28h 29m

Deal found 24/10£761

Wed 18/1116:00 -

2 stops22h 30m

Wed 25/1112:15 -

2 stops16h 25m

Deal found 25/10£782

Tue 8/1214:50 -

1 stop10h 50m

Tue 15/1213:00 -

2 stops32h 58m

Deal found 24/10£663

Sun 8/1118:07 -

3 stops22h 28m

Fri 13/1106:00 -

2 stops31h 26m

Deal found 24/10£764

Sun 25/414:12 -

1 stop11h 33m

Tue 4/506:50 -

2 stops15h 00m

Deal found 24/10£663

Thu 21/116:01 -

1 stop13h 24m

Mon 10/516:10 -

Nonstop8h 15m

Deal found 24/10£811

Find flight deals from Pennsylvania to Heathrow

Round-trip from	£574
One-way from	£217
Popular in	June
Cheapest in	January
Average price	£789
Good round-trip deal	£899 or less

United Airlines
7/12-9/12
3 total stops
48h 14m total
Pennsylvania to London

Search Deals

JetBlue
13/11-31/12
1 total stop
10h 20m total
Pennsylvania to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£139 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Sat 5/12

06:00-21:40

1 stop10h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£217

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Wed 25/11

06:00-21:40

1 stop10h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£217

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 12/11

12:30-07:50

1 stop14h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£256

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 12/11

12:09-07:50

2 stops14h 41m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Wed 10/3

13:00-09:00

2 stops15h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£269

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Tue 17/11

12:36-17:30

3 stops23h 54m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£302

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Thu 31/12

11:55-10:50

3 stops17h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£314

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Wed 2/12

08:15-19:30

3 stops30h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£318

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Wed 30/12

08:05-10:10

2 stops21h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

PittsburghLondon

PIT Pittsburgh - LHR London Heathrow

PITLHR

Pittsburgh

Sun 1/11

20:50-21:05

1 stop19h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 54 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.

MDT-LHR

PHL-LHR

PIT-LHR

ERI-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

MDT-LHR

PHL-LHR

PIT-LHR

ERI-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 £532). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £1,060). 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.

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 £598 and £922 in December.
The cheapest return price found within the last 5 days was £615 on JetBlue (10 Dec–14 Jan).

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

Booking 76 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 13h 15m. Fly via United Airlines, Delta, or JetBlue to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3533 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 New York LaGuardia - 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 (94%), American Airlines (91%) and British Airways (91%).
What are the cheapest flights from Pennsylvania to London Heathrow Airport?
The cheapest flight price from Pennsylvania to London Heathrow Airport is £529. On average you can expect to pay £958. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £377.
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 £532). Flying from Pennsylvania to London Heathrow Airport in June is currently the most expensive (average of £1,060). 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.

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Top 2 airlines flying from Pennsylvania to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£493	Average£947	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£1,036	Average£1,142	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 £217

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. 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 27 October 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 27 October 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 27 October 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 27 October 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 27 October 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 27 October 2026.

Last-minute flights from Pennsylvania to HeathrowDiscover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 27 October 2026 and is based on user searches.

Discover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 27 October 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 27 October 2026.

Search for one-way flight options from Pennsylvania to Heathrow. Find affordable one-way fares based on user searches. Data last updated 27 October 2026.

Find flight deals from Pennsylvania to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

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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 27 October 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.

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 £598 and £922 in December.The cheapest return price found within the last 5 days was £615 on JetBlue (10 Dec–14 Jan).

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

Booking 76 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 27 October 2026.

Pennsylvania and Heathrow flights

Browse other Pennsylvania and Heathrow flight options. Last updated on 27 October 2026.

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Pennsylvania to Heathrow flights

Consider these flights travelling from Pennsylvania to Heathrow.

Top 2 airlines flying from Pennsylvania to Heathrow

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

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

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 27 October 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 27 October 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 27 October 2026.

Last-minute flights from Pennsylvania to Heathrow
Discover last-minute flight deals from Pennsylvania to Heathrow. Data last updated 27 October 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 27 October 2026.

Pennsylvania to London Heathrow Airport flights typically cost between £598 and £922 in December.
The cheapest return price found within the last 5 days was £615 on JetBlue (10 Dec–14 Jan).