£261 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 6/5. 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, 0 bags

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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Flight Deals

Cheap Flights from Heathrow to Pennsylvania

Cheapest return prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphia1 stop£468
Pittsburgh
Pittsburgh1 stop£492
Harrisburg
Harrisburg1 stop£653
State College
State College2 stops£709
Scranton
Scranton1 stop£678
Erie
Erie1 stop£870
Allentown
Allentown2 stops£719
Philadelphia
Philadelphia1 stop£468
Pittsburgh
Pittsburgh1 stop£492
Harrisburg
Harrisburg1 stop£653
State College
State College2 stops£709
Scranton
Scranton1 stop£678
Erie
Erie1 stop£870
Allentown
Allentown2 stops£719

Book Cheap Heathrow to Pennsylvania Plane Tickets

 
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

Thu, 16 Apr - Thu, 23 Apr
Scandinavian Airlines Logo
07:05 - 15:40
LHR
-
JFK
13h 35m
1 stop
Scandinavian Airlines Logo
18:55 - 17:40
JFK
-
LHR
17h 45m
1 stop
£340Scandinavian Airlines
Wed, 20 May - Mon, 25 May
Scandinavian Airlines Logo
07:05 - 15:40
LHR
-
JFK
13h 35m
1 stop
Scandinavian Airlines Logo
18:55 - 16:00
JFK
-
LHR
16h 05m
1 stop
£342Scandinavian Airlines
Mon, 27 Apr - Tue, 5 May
United Airlines Logo
16:40 - 23:30
LHR
-
LGA
11h 50m
1 stop
United Airlines Logo
19:29 - 10:40
LGA
-
LHR
10h 11m
1 stop
£367United Airlines
Wed, 22 Apr - Wed, 29 Apr
United Airlines Logo
16:40 - 23:30
LHR
-
LGA
11h 50m
1 stop
United Airlines Logo
14:49 - 06:55
LGA
-
LHR
11h 06m
1 stop
£368United Airlines
Tue, 12 May - Sun, 17 May
Air Canada Logo
14:10 - 22:36
LHR
-
LGA
13h 26m
1 stop
Air Canada Logo
15:30 - 06:30
LGA
-
LHR
10h 00m
1 stop
£394Air Canada
Fri, 17 Apr - Wed, 22 Apr
British Airways Logo
17:05 - 20:10
LHR
-
IAD
8h 05mdirect
British Airways Logo
19:05 - 07:45
IAD
-
LHR
7h 40mdirect
£408British Airways
Thu, 23 Apr - Mon, 4 May
British Airways Logo
10:30 - 16:45
LHR
-
DCA
11h 15m
1 stop
British Airways Logo
16:43 - 07:10
DCA
-
LHR
9h 27m
1 stop
£413British Airways
Thu, 23 Apr - Thu, 30 Apr
Air Canada Logo
08:45 - 19:53
LHR
-
DCA
16h 08m
2 stops
Air Canada Logo
12:55 - 10:00
DCA
-
LHR
16h 05m
2 stops
£418Air Canada
Tue, 21 Apr - Tue, 28 Apr
JetBlue Logo
08:40 - 21:59
LHR
-
PHL
18h 19m
1 stop
JetBlue Logo
08:25 - 06:30
PHL
-
LHR
17h 05m
1 stop
£477JetBlue
Wed, 15 Apr - Wed, 22 Apr
JetBlue Logo
08:40 - 21:53
LHR
-
PIT
18h 13m
1 stop
JetBlue Logo
06:00 - 20:45
PIT
-
LHR
9h 45m
1 stop
£492JetBlue
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Pennsylvania from London Heathrow Airport found in the last 72 hours was to Philadelphia, at £477 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 £477.

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

The average price for all round-trip flights from London Heathrow Airport to Pennsylvania depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Pennsylvania is generally in the morning, when retur flights cost £630 on average. The most expensive time of day to fly to Pennsylvania is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £633.

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 £635 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 September, when tickets cost £512 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £679 and £675 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, Wednesday 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 Sunday 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 a flight from London Heathrow Airport to Pennsylvania, you should book around 2 weeks before departure, which saves you about 36% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

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

Low seasonFebruary
Cheapest flight£261
Most popular time to fly (19% 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 Airlines
LHR
-
PHL
Jul 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 Airways
LHR
-
PIT
Jun 2024
By your own food and have your own music. Upgrade your seat if you have the funds!
WendyFlew with Iberia
LHR
-
PIT
Jul 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 Iberia
LHR
-
PHL
Jul 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 Airways
LHR
-
PIT
May 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.

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 £375 one-way - £471 round-trip

Reviews of the top 5 airlines flying 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 1371 reviews
8.2Crew
6.9Entertainment
7.7Boarding
7.5Comfort
6.7Food
Airline reviews

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

8.0 ExcellentFiruz, Feb 2026
HEL - ICN
Read more Finnair reviews

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

Very good seat, very comfortable, good food, and good service.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

I paid $7,000 to fly round trip to Porto. I thought it was for business class. But on the leg from Miami to Newark, and again from Newark to Miami, i was in coach. One time in the middle seat of coach. From Newark to Porto I was in business class as expected, and it was fine. I fly to Portugal once per month, often paying $5,000 for business class. Usually i fly American Airlines. I'd be happy to fly more with United Airlines. But my experience was disappointing because i was put in the coach for almost half the flights.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

It was amazing. I had several upgraded seats on my flight out. Everything went smooth with no delays.

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

One of the best flight experiences I've have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

Very nice staff, terrible food, not very comfortable premium economy.

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

A more organized boarding experience and better food would have made the experience better.

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything you need to know for your flight from Heathrow to Pennsylvania

Information on your arrival and departure airports