What are the cheapest airlines to fly from Pennsylvania to London one-way?

One-way options have recently been found by users for as low as £137 on Icelandair. Other airlines that offer cheap prices include Norse Atlantic UK from £137 and TAP AIR PORTUGAL from £153 one-way.

What are the most popular routes from Pennsylvania to London?

When deciding which route to take from Pennsylvania to London consider New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York John F Kennedy Intl - London Gatwick as they are the most popular.

What are the cheapest flights from Pennsylvania to London?

Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £538, our data indicates the cheapest price to be £301. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £272.

What are the most reliable airlines from Pennsylvania to London?

The top 3 most reliable airlines when flying from Pennsylvania to London are Malaysia Airlines (76%), American Airlines (76%) and Finnair (76%).

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

The most popular airlines flying from Pennsylvania to London are JetBlue, British Airways and Aer Lingus. Something to consider prior to booking your flight.

How far in advance should I book a flight from Pennsylvania to London?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 10 days in advance, which can save you up to 31% on flights from Pennsylvania to London compared to booking the week you need them. Waiting 10 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 £502. For sooner than that we have options available in the next 3 days from £718.

What is the cheapest month to fly from Pennsylvania to London?

The best pricing can be found in the month of February. Prices to London from Pennsylvania average £618. You can even find prices in February for less than £618, as users have found deals to London from as low as £420. The month of June appears to be one of the more expensive times to travel to London from Pennsylvania. Flying in the targeted month can save you up to 37%.

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

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

How can I find direct flights from Pennsylvania to London?

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

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

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

£137+ Flights from Pennsylvania to London

Cheap flight deals from Pennsylvania to London

Round-trip from	£299
One-way from	£137
Popular in	June
Cheapest in	February
Average price	£571
Good round-trip deal	£535 or less
Good one-way deal	£395 or less

12/5-21/5
1 total stop
37h 10m total
Pennsylvania to London

Search Deals

Icelandair
20/7
1 total stop
16h 10m total
Pennsylvania to London

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£104 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Pennsylvania to London (LON).

Search Deals

Price to beat on a one-way flight from Pennsylvania to London (LON).

Search Deals

Find flight deals from Pennsylvania to London

Cheapest flights from Pennsylvania to London
Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Mon 12/518:20JFK - LGW

Nonstop7h 00mMultiple Airlines

Wed 21/520:50LGW - JFK

1 stop30h 10mMultiple Airlines

Deal found 16/4£299

Thu 31/718:20JFK - LGW

Nonstop7h 00mNorse Atlantic UK

Sat 6/913:05LGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 16/4£317

Tue 28/1020:30EWR - LHR

1 stop10h 20mIcelandair

Sat 1/1112:15LHR - EWR

1 stop11h 05mIcelandair

Deal found 16/4£375

Sun 3/819:45JFK - LGW

Nonstop7h 05mBritish Airways

Wed 20/815:05LGW - JFK

Nonstop8h 00mBritish Airways

Deal found 16/4£376

Fri 10/1023:10JFK - LHR

1 stop31h 45mIcelandair

Sat 18/1021:25LHR - JFK

1 stop26h 45mIcelandair

Deal found 16/4£378

Mon 11/823:55JFK - STN

1 stop11h 10mMultiple Airlines

Sat 23/811:50STN - JFK

1 stop15h 10mMultiple Airlines

Deal found 15/4£378

Fri 16/519:25JFK - LHR

1 stop13h 15mMultiple Airlines

Sun 18/506:50LHR - JFK

1 stop11h 10mMultiple Airlines

Deal found 16/4£379

Mon 22/923:10JFK - LGW

1 stop10h 25mIcelandair

Tue 30/915:40LGW - JFK

1 stop32h 30mIcelandair

Deal found 16/4£379

Fri 25/420:30JFK - LHR

1 stop20h 15mSWISS

Sun 27/419:15LHR - JFK

1 stop24h 05mSWISS

Deal found 17/4£383

Sun 3/820:25EWR - LGW

1 stop13h 15mIcelandair

Wed 20/815:40LGW - EWR

1 stop32h 30mIcelandair

Deal found 16/4£383

Tue 13/515:30LGA - LHR

1 stop10h 00mAir Canada

Wed 21/509:30LHR - LGA

1 stop17h 00mAir Canada

Deal found 17/4£385

Tue 6/510:25EWR - LHR

1 stop15h 05mMultiple Airlines

Fri 16/513:45LHR - EWR

1 stop11h 25mMultiple Airlines

Deal found 15/4£387

Best flights from Pennsylvania to London
Discover carefully curated flight deals from Pennsylvania to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 April 2025.

Mon 12/518:20JFK - LGW

Nonstop7h 00mMultiple Airlines

Wed 21/520:50LGW - JFK

1 stop30h 10mMultiple Airlines

Deal found 16/4£299

Thu 31/718:20JFK - LGW

Nonstop7h 00mNorse Atlantic UK

Sat 6/913:05LGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 16/4£317

Sun 3/819:45JFK - LGW

Nonstop7h 05mBritish Airways

Wed 20/815:05LGW - JFK

Nonstop8h 00mBritish Airways

Deal found 16/4£376

Fri 10/1023:10JFK - LHR

1 stop31h 45mIcelandair

Sat 18/1021:25LHR - JFK

1 stop26h 45mIcelandair

Deal found 16/4£378

Wed 7/515:30LGA - LHR

1 stop10h 00mAir Canada

Wed 21/514:05LHR - LGA

1 stop10h 34mAir Canada

Deal found 16/4£392

Thu 14/821:35JFK - LGW

Nonstop7h 25mDelta

Thu 21/812:00LGW - JFK

Nonstop8h 25mDelta

Deal found 15/4£392

Tue 13/522:30JFK - LHR

Nonstop7h 30mVirgin Atlantic

Tue 20/509:35LHR - JFK

Nonstop8h 10mVirgin Atlantic

Deal found 16/4£398

Fri 16/519:25JFK - LHR

1 stop13h 15mSWISS

Sun 18/508:45LHR - JFK

1 stop12h 50mSWISS

Deal found 17/4£399

Fri 15/821:40EWR - LHR

Nonstop7h 30mLufthansa

Sat 30/812:00LHR - EWR

Nonstop8h 15mLufthansa

Deal found 16/4£400

Fri 2/509:00JFK - LHR

1 stop16h 30mUnited Airlines

Tue 6/512:10LHR - JFK

1 stop29h 40mUnited Airlines

Deal found 17/4£410

Wed 7/520:05JFK - LGW

Nonstop7h 05mFinnair

Wed 14/515:05LGW - JFK

Nonstop8h 00mFinnair

Deal found 16/4£416

Wed 30/421:50JFK - LHR

Nonstop7h 25mAir France

Wed 7/516:05LHR - JFK

Nonstop8h 15mAir France

Deal found 15/4£421

Direct flights from Pennsylvania to London
Explore direct flight options from Pennsylvania to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 April 2025.

Thu 31/718:20JFK - LGW

Nonstop7h 00mNorse Atlantic UK

Sat 6/913:05LGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 16/4£317

Sun 3/819:45JFK - LGW

Nonstop7h 05mBritish Airways

Wed 20/815:05LGW - JFK

Nonstop8h 00mBritish Airways

Deal found 16/4£376

Tue 29/718:30JFK - LHR

Nonstop7h 00mBritish Airways

Tue 19/819:40LHR - JFK

Nonstop7h 50mBritish Airways

Deal found 17/4£380

Thu 14/821:35JFK - LGW

Nonstop7h 25mVirgin Atlantic

Thu 21/812:00LGW - JFK

Nonstop8h 25mVirgin Atlantic

Deal found 15/4£392

Fri 15/818:00JFK - LHR

Nonstop7h 25mVirgin Atlantic

Sat 6/909:35LHR - JFK

Nonstop8h 10mVirgin Atlantic

Deal found 15/4£396

Fri 15/821:40EWR - LHR

Nonstop7h 30mLufthansa

Sat 30/812:00LHR - EWR

Nonstop8h 15mLufthansa

Deal found 16/4£400

Sat 17/518:20JFK - LGW

Nonstop7h 00mMultiple Airlines

Wed 21/513:05LGW - JFK

Nonstop7h 50mMultiple Airlines

Deal found 16/4£404

Wed 24/921:25EWR - LHR

Nonstop7h 05mBritish Airways

Mon 29/916:35LHR - EWR

Nonstop7h 50mBritish Airways

Deal found 16/4£406

Fri 23/521:40JFK - LGW

Nonstop7h 20mDelta

Fri 30/512:00LGW - JFK

Nonstop8h 10mDelta

Deal found 16/4£410

Wed 7/520:05JFK - LGW

Nonstop7h 05mFinnair

Wed 14/515:05LGW - JFK

Nonstop8h 00mFinnair

Deal found 16/4£416

Mon 28/420:05JFK - LGW

Nonstop7h 05mAmerican Airlines

Tue 6/515:05LGW - JFK

Nonstop8h 00mAmerican Airlines

Deal found 16/4£417

Wed 30/418:45EWR - LHR

Nonstop7h 30mUnited Airlines

Wed 7/513:00LHR - EWR

Nonstop8h 10mUnited Airlines

Deal found 16/4£419

Last-minute flights from Pennsylvania to London
Discover last-minute flight deals from Pennsylvania to London. Data last updated 17 April 2025 and is based on user searches.

Thu 17/421:45JFK - LHR

1 stop29h 35mUnited Airlines

Sun 20/406:50LHR - JFK

1 stop11h 10mUnited Airlines

Deal found 16/4£380

Tue 22/423:10JFK - STN

2 stops19h 20mMultiple Airlines

Thu 15/507:05STN - JFK

2 stops33h 50mMultiple Airlines

Deal found 16/4£401

Tue 22/418:55LGA - LHR

1 stop10h 05mAir Canada

Tue 13/509:30LHR - LGA

1 stop10h 18mAir Canada

Deal found 16/4£423

Tue 22/419:29LGA - LHR

1 stop10h 11mMultiple Airlines

Fri 2/509:30LHR - LGA

1 stop12h 28mMultiple Airlines

Deal found 16/4£424

Thu 24/423:10JFK - LHR

1 stop16h 10mIcelandair

Wed 7/521:25LHR - JFK

1 stop29h 45mIcelandair

Deal found 16/4£381

Thu 24/409:45JFK - LHR

Nonstop6h 55mBritish Airways

Thu 1/517:00LHR - JFK

Nonstop7h 55mBritish Airways

Deal found 16/4£398

Fri 25/420:30JFK - LHR

1 stop20h 15mSWISS

Sun 27/419:15LHR - JFK

1 stop24h 05mSWISS

Deal found 17/4£383

Fri 25/421:45JFK - LHR

1 stop15h 55mMultiple Airlines

Sun 27/406:00LHR - JFK

1 stop11h 50mMultiple Airlines

Deal found 16/4£386

Fri 25/418:10JFK - LHR

1 stop21h 45mBrussels Airlines

Sun 27/407:45LHR - JFK

2 stops36h 15mBrussels Airlines

Deal found 16/4£393

Fri 25/418:10JFK - LHR

1 stop22h 25mBrussels Airlines

Sun 27/406:50LHR - JFK

2 stops37h 10mBrussels Airlines

Deal found 17/4£393

Sat 26/418:20JFK - LGW

Nonstop7h 00mNorse Atlantic UK

Mon 12/513:05LGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 16/4£386

Sat 26/412:40EWR - LHR

1 stop27h 20mMultiple Airlines

Sat 10/513:45LHR - EWR

1 stop11h 25mMultiple Airlines

Deal found 16/4£421

One-way flights from Pennsylvania to London
Search for one-way flight options from Pennsylvania to London. Find affordable one-way fares based on user searches. Data last updated 17 April 2025.

Sun 20/723:10JFK - LHR

1 stop16h 10mIcelandair

Deal found 16/4£137

Tue 13/518:20JFK - LGW

Nonstop7h 00mNorse Atlantic UK

Deal found 15/4£137

Tue 22/700:15JFK - LGW

1 stop26h 00mMultiple Airlines

Deal found 16/4£138

Wed 1/1020:25JFK - LGW

1 stop13h 15mIcelandair

Deal found 16/4£140

Mon 21/723:55JFK - STN

1 stop32h 05mMultiple Airlines

Deal found 16/4£146

Tue 15/705:55LGA - LGW

1 stop20h 05mMultiple Airlines

Deal found 16/4£152

Wed 6/822:50EWR - LHR

1 stop13h 55mTAP AIR PORTUGAL

Deal found 16/4£153

Wed 6/820:25EWR - LGW

1 stop10h 20mIcelandair

Deal found 16/4£163

Tue 15/722:05JFK - LHR

1 stop31h 15mTAP AIR PORTUGAL

Deal found 16/4£167

Mon 8/923:55JFK - LHR

1 stop17h 00mMultiple Airlines

Deal found 16/4£171

Sun 27/419:30JFK - LHR

Nonstop7h 15mBritish Airways

Deal found 16/4£179

Mon 28/423:00EWR - LGW

1 stop15h 35mMultiple Airlines

Deal found 16/4£179

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Mon 12/5

18:20-06:20

Nonstop7h 00m

London Gatwick

Wed 21/5

20:50-22:00

1 stop30h 10m

£299

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 31/7

18:20-06:20

Nonstop7h 00m

London Gatwick

Sat 6/9

13:05-15:55

Nonstop7h 50m

£317

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 3/8

19:45-07:50

Nonstop7h 05m

London Gatwick

Wed 20/8

15:05-18:05

Nonstop8h 00m

£376

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 10/10

23:10-11:55

1 stop31h 45m

London Heathrow

Sat 18/10

21:25-19:10

1 stop26h 45m

£378

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Mon 11/8

23:55-16:05

1 stop11h 10m

London Stansted

Sat 23/8

11:50-22:00

1 stop15h 10m

£378

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Mon 22/9

23:10-14:35

1 stop10h 25m

London Gatwick

Tue 30/9

15:40-19:10

1 stop32h 30m

£379

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 7/5

15:30-06:30

1 stop10h 00m

London Heathrow

Wed 21/5

14:05-19:39

1 stop10h 34m

£392

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 14/8

21:35-10:00

Nonstop7h 25m

London Gatwick

Thu 21/8

12:00-15:25

Nonstop8h 25m

£392

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 15/5

20:05-08:15

Nonstop7h 10m

London Heathrow

Thu 22/5

18:05-21:00

Nonstop7h 55m

£394

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 16/5

19:25-13:40

1 stop13h 15m

London Heathrow

Sun 18/5

08:45-16:35

1 stop12h 50m

£399

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 60 results

...

Best time to book a flight from Pennsylvania to London

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

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

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to London (average of £112). Flying from Pennsylvania to London in August is currently the most expensive (average of £164). 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 LON?

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

Weekly flight availability from Pennsylvania to London

The most flights from USPA to LON 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).

Rainfall in London by month

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, 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).

Reviews of airlines servicing London

See what other customers who have flown with Delta, Porter Airlines and KLM from Pennsylvania to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,916 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

8.0

Very Good

281 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,329 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat

7.8

Good

385 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Pennsylvania to London one-way?
One-way options have recently been found by users for as low as £137 on Icelandair. Other airlines that offer cheap prices include Norse Atlantic UK from £137 and TAP AIR PORTUGAL from £153 one-way.
What are the most popular routes from Pennsylvania to London?
When deciding which route to take from Pennsylvania to London consider New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York John F Kennedy Intl - London Gatwick as they are the most popular.
What are the most reliable airlines from Pennsylvania to London?
The top 3 most reliable airlines when flying from Pennsylvania to London are Malaysia Airlines (76%), American Airlines (76%) and Finnair (76%).
What are the cheapest flights from Pennsylvania to London?
Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £538, our data indicates the cheapest price to be £301. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £272.
Can I find deals for flights from Pennsylvania to London that include hotel bookings?
Yes. In addition to deals on Pennsylvania to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Pennsylvania to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to London.
Can I find deals for business class flights from Pennsylvania to London?
Yes. Cheapflights offers flight deals from Pennsylvania to London 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?
Currently, January is the cheapest month in which you can book a flight from Pennsylvania to London (average of £112). Flying from Pennsylvania to London in August is currently the most expensive (average of £164). 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

Hounslow

Deal

Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Wembley

Hayes

Crawley

Southend-on-Sea

Maidstone

Ipswich

Southall

Ilford

Winchester

Folkestone

Dartford

Watford

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Pennsylvania to London

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest£440	Average£586	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
JetBlue	Cheapest£457	Average£531	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
British Airways	Cheapest£462	Average£595	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£498	Average£742	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Pennsylvania to London 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 London?

Cheapflights helps you find that perfect flight to London from Pennsylvania by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Pennsylvania today and book when prices fit your budget.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Pennsylvania to London from £137

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pennsylvania to London

Keep the following information in mind while searching for Pennsylvania to London flight deals. Data was last updated 17 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Pennsylvania to London

Cheapest flights from Pennsylvania to LondonExplore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Pennsylvania to London

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Pennsylvania to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 April 2025.

Weekly flight availability from Pennsylvania to London

Explore weekly flight availability from Pennsylvania to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 April 2025.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 17 April 2025.

See what other customers who have flown with Delta, Porter Airlines and KLM from Pennsylvania to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Pennsylvania to London one-way?

What are the most popular routes from Pennsylvania to London?

What are the most reliable airlines from Pennsylvania to London?

What are the cheapest flights from Pennsylvania to London?

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

How can I find direct flights from Pennsylvania to London?

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

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Cheapest flights from Pennsylvania to London
Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.