£172 Find Cheap Flights from London Heathrow Airport to Pennsylvania

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Pennsylvania departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Pennsylvania

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Pennsylvania.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Pennsylvania.
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Best Pennsylvania Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphia1 stop£386
Pittsburgh
Pittsburgh1 stop£411
Harrisburg
Harrisburg2 stops£754
Scranton
Scranton1 stop£614
State College
State College1 stop£510
Allentown
Allentown1 stop£553
Philadelphia
Philadelphia1 stop£386
Pittsburgh
Pittsburgh1 stop£411
Harrisburg
Harrisburg2 stops£754
Scranton
Scranton1 stop£614
State College
State College1 stop£510
Allentown
Allentown1 stop£553

Cheap Flights from Heathrow to Pennsylvania

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Pennsylvania that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Pennsylvania

Sat, 28 Jun - Thu, 3 Jul
 Logo
06:00 - 13:55LHR-EWR
12h 55m1 stop
 Logo
17:25 - 10:15EWR-LHR
11h 50m1 stop
Wed, 5 Nov - Thu, 27 Nov
Brussels Airlines Logo
09:10 - 12:35LHR-EWR
8h 25mdirect
Brussels Airlines Logo
22:40 - 11:05EWR-LHR
7h 25mdirect
£197Brussels Airlines
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Mon, 15 Sep - Wed, 15 Oct
Aer Lingus Logo
09:50 - 16:50LHR-JFK
12h 00m1 stop
Aer Lingus Logo
18:29 - 09:05JFK-LHR
9h 36m1 stop
£302Aer Lingus
Find Deal
Mon, 3 Nov - Wed, 12 Nov
Aer Lingus Logo
10:00 - 16:25LHR-JFK
11h 25m1 stop
Aer Lingus Logo
18:30 - 09:15JFK-LHR
9h 45m1 stop
£303Aer Lingus
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Wed, 5 Nov - Wed, 12 Nov
Finnair Logo
10:50 - 14:00LHR-EWR
8h 10mdirect
Finnair Logo
18:35 - 06:25EWR-LHR
6h 50mdirect
£338Finnair
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Wed, 12 Nov - Mon, 17 Nov
British Airways Logo
10:50 - 14:00LHR-EWR
8h 10mdirect
British Airways Logo
18:35 - 06:25EWR-LHR
6h 50mdirect
£341British Airways
Find Deal
Wed, 24 Sep - Tue, 30 Sep
British Airways Logo
11:10 - 13:55LHR-EWR
7h 45mdirect
British Airways Logo
21:25 - 09:30EWR-LHR
7h 05mdirect
£344British Airways
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Mon, 23 Jun - Tue, 1 Jul
Finnair Logo
10:05 - 17:19LHR-LGA
12h 14m1 stop
Finnair Logo
17:30 - 07:50LGA-LHR
9h 20m1 stop
£359Finnair
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Sun, 28 Sep - Wed, 8 Oct
Iberia Logo
20:00 - 14:45LHR-JFK
23h 45m1 stop
Iberia Logo
15:00 - 07:50JFK-LHR
11h 50m1 stop
£378Iberia
Find Deal
Mon, 23 Jun - Mon, 30 Jun
Iberia Logo
12:30 - 15:25LHR-PHL
7h 55mdirect
Iberia Logo
19:50 - 08:05PHL-LHR
7h 15mdirect
£473Iberia
Find Deal
Useful Info

KAYAK's insights & trends for Heathrow to Pennsylvania flights

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

What is the cheapest London Heathrow Airport to Pennsylvania flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Pennsylvania.

The cheapest ticket to Pennsylvania from London Heathrow Airport found in the last 72 hours was to Philadelphia, at £416 return. The most popular route is from London Heathrow Airport (LHR) to Philadelphia (PHL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £416.

Can I save money by flying with a stopover from London Heathrow Airport to Pennsylvania?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £1,027 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Pennsylvania is March, when tickets cost £467 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £696 and £687 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Pennsylvania?

The average price of all round-trip flights from London Heathrow Airport to Pennsylvania clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to Pennsylvania, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Pennsylvania back to London Heathrow Airport, the best deals are generally found on Tuesday, with Thursday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from London Heathrow Airport to Pennsylvania, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.


Good to know - Cheap tickets from London Heathrow Airport to Pennsylvania

Low seasonMarch
High seasonJuly
Cheapest flight£155
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from London Heathrow Airport to New York John F Kennedy Airport

Flights from Heathrow to Pennsylvania: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Heathrow to Pennsylvania 
Verified travelerFlew with American AirlinesLHR-PHLJul 2024
Make sure you are at the airport at least 3 hours early to ensure that you can check in, go through security, and so that you can find your departure gate within plenty of time so you are not rushing.
Verified travelerFlew with British AirwaysLHR-PITJun 2024
By your own food and have your own music. Upgrade your seat if you have the funds!
WendyFlew with IberiaLHR-PITJul 2024
This is a good service to a smaller gateway airport. It's usually full. This service is why we selected BA. If you've prepaid for your seats be prepared for them to switch the plane configuration and reassign your seats. You'll have to apply for this refund too since it's not automatic. These refunds should be automatic not a chore for you to get your money back, especially when you have selected seats you personally want.
Anne KatherineFlew with IberiaLHR-PHLJul 2024
Need more snacks. As meals not big and need more to eat Also take own water on board as not enough drinks offered from cabin crew - can feel dehydrated during flight
SuzanneFlew with British AirwaysLHR-PITMay 2024
1 - bring a portable battery backup because you can't rely on the outlets at your seat to be working. 2 - download movies/shows to your device, because you can't rely on your headphones or screen to be working. 3 - download any work, as possible, to your laptop, because you can't rely on WiFi to be working.

FAQs - booking Pennsylvania flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 Heathrow Airport to Pennsylvania.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Pennsylvania?

    The cheapest time of day to fly to Pennsylvania is generally in the evening, when retur flights cost £669 on average. Morning departures are around 29% more expensive than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the morning, which is peak travel time and where the average cost of a ticket is £864.

Top tips for finding a cheap flight from London Heathrow Airport to Pennsylvania

  • Looking for a cheap flight from London Heathrow Airport to Pennsylvania? 25% of our users found tickets from London Heathrow Airport to Pennsylvania for the following prices or less: New York £372 one-way - £366 round-trip

Top 5 airlines serving from Heathrow to Pennsylvania

 
See real verified KAYAK customer reviews for airlines flying from London to Pennsylvania. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Pennsylvania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1290 reviews
6.7Food
7.6Boarding
7.4Comfort
6.9Entertainment
8.1Crew
Airline reviews

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

2.0 MediocreAnonymous, May 2025ORD - IND
Read more Finnair reviews

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Good flight, friendly crew and overall - good service on United Airlines.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

flight landed late almost 1.00hr and we 4 passengers missed our connected flight to indianapolis, we need to get the hotel and taxi for the next day flight to home in indianapolis, cost us $ 300 more

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

From the kind young lady (w/Vancouver air security) who expedited our check-in to U.S. Customs to the Air Canada gate crew who gave us pre-boarding, the flight attendants who actually offered a strong hand to help me board once I had surrendered my rolling walker at the door, they are all reflections of the thoughtful, genuinely helpful Canadians we have grown to appreciate. Water and other beverages were offered throughout the flight to make sure we weren't dehydrated and the cookie was great. (Husband bought the fruit & crackers snack,) I was delighted to see three movies that I would not have otherwise seen and appreciate that AC left the last film viewable until its conclusion although the flight had actually landed. Last, mahalo to the kind strong gentleman who not offered his hand to help me debark the plane, but gave me an AC pin that I'll truly treasure.

The ground staff was so rude in Toronto airport ...very rude and did not answer simple questions, and made me look like a fool. Very rude ground staff.

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

I had a nice flight with free wifi. So I was able to message family members and stream music during my flight, which made the trip go by fast. I also enjoyed flying on there Airbus A220. The plane looked very new and it also got up to speed fast down the runway and didn't need much runway to get airborne.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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