BA's Premium Economy offers more legroom and priority boarding for long-haul comfort.
BA's Executive Club loyalty program offers Avios points for flights and partner services.
Planning a trip from Philadelphia to London? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
When planning a trip from Philadelphia to London, there are several ways to potentially save money on your flight. The cheapest day of the week to fly is generally Tuesday, and the cheapest month to fly is typically February.
Booking Advance: Book your flight at least 142 days in advance for the best rates.
Airline Choice: JetBlue generally offers the cheapest flights for this route.
Direct or Layover: It's cheaper to fly with one layover than direct.
Airport Selection: Flying into London Heathrow (LHR) from Philadelphia (PHL) is typically the cheapest route.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
Low season | February |
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High season | August |
Cheapest flight | $156 |
Direct departures
Philadelphia to London
Monday
American Airlines, British Airways
American Airlines, British Airways
Tuesday
American Airlines, British Airways
American Airlines, British Airways
Wednesday
American Airlines, British Airways
American Airlines, British Airways
Thursday
American Airlines, British Airways
American Airlines, British Airways
Friday
American Airlines, British Airways
American Airlines, British Airways
Saturday
American Airlines, British Airways
American Airlines, British Airways
Sunday
American Airlines, British Airways
American Airlines, British Airways
Direct returns
London to Philadelphia
Monday
American Airlines, British Airways
American Airlines, British Airways
Tuesday
American Airlines, British Airways
American Airlines, British Airways
Wednesday
American Airlines, British Airways
American Airlines, British Airways
Thursday
American Airlines, British Airways
American Airlines, British Airways
Friday
American Airlines, British Airways
American Airlines, British Airways
Saturday
American Airlines, British Airways
American Airlines, British Airways
Sunday
American Airlines, British Airways
American Airlines, British Airways
Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly
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.
We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.
Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.
Flight delayed over an hour. They said they would hold our connection but then did not.
Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.
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.
Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.
Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine
Did not get the seat I selected and paid for.
The flight was canceled 3 hours after original take off time
Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!
Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.
Flight was delayed and after being in the airport for like seven hours, it was canceled.
Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.
Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.
Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!
Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.
I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).
No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive
They have the most inexperienced / rude flight staff I’ve encountered
very difficult boarding process - aggressive passengers not the friendliest crew
WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv
I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat
It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.
Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.
The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.
It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.
Easy and organized getting in and out of the flight
We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.
The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.
It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.
Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem
Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!
I described my experience in the previous window. I didn't realize that there would be another opportunity for this flight. Please look at my response in the previous window.
Boarding was 2 1/2 late no explanation Captain said he did not know why, but he rested at home for an extra couple of hours. Food was edible, Nothing more.
I liked the comfort of the plane. It was unexpected from past experiences.
The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.
flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great
Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.
Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture
Didn’t fly with them as someone had cancelled my flight
Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass
I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠
Boarding was efficient and quick, crew was very attentive, seats were comfortable.
Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours
Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room
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