Find Cheap Flights from London to Philadelphia (LON - PHL)

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Fri 1/19
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Good to Know

Low Season:
February
Best time to beat the crowds
4%
expected price decrease
High Season:
July
Most popular time to fly
27%
expected price increase
Average Price:
$1031
(avg. price over the last 2 weeks)
Good Deal:
$682
or less (round trip)

When to Book Flights from London to Philadelphia

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $682 or less.
The cheapest flight from London to Philadelphia was found 77 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 20% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking London to Philadelphia Flights

How long does a flight from London to Philadelphia take?
An average nonstop flight takes 11h 25m, covering a distance of 3548 miles.
How many flights are there between London and Philadelphia?
There are 196 (nonstop) flights between London and Philadelphia per week, averaging 28 per day.
Which airlines provide the cheapest flights from London to Philadelphia?
In the past 3 days, the cheapest round-trip tickets were found on Lufthansa ($396), Multiple Airlines ($420) and SWISS ($457).
Do I need a passport to fly between London and Philadelphia?
Yes.
Which airlines fly most frequently between London and Philadelphia?
American Airlines (3 times daily), Finnair (3 times daily), Iberia (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly London to Philadelphia?
For London to Philadelphia, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Philadelphia back to London, the best deals are generally found on Sunday, with Friday being the most expensive.

Book cheap flights from London to Philadelphia (round-trip)

Airports
Origin
London
$421
only
$421
$396
only
$396
$489
only
$489
Destination
Philadelphia
$396
only
$396
Tue, Feb 20
LCY
PHL
12h 55m
Wed, Feb 28
PHL
LCY
10h 45m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18144 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
BOM
Excellent 10.0

I enjoyed just relaxing, eating good food, drinking as much quality alcohol as I pleased and having all the entertainment I could ask for

The entertainment system could remain active till the actual opening of the doors. Why not?

LOS
FRA
Excellent 9.0

Very hospitable. Really enjoyed the food. Got bumped up to Business class on both legs of the trip.

The boarding could have been better organized at Frankfurt. Was very scattered.

DEN
FRA
Excellent 8.3

1 hor 30 minutes instead of 2 hours 15

Worst food ever, and zero entertainment

IAD
FRA
Good 7.6

The food was good.

The seats were not too comfortable and the video screen was small.

FRA
IAH
Excellent 9.3

food was excellent

no 'breakfast' specifically, other snack items were available

Mon, Feb 12
LCY
PHL
12h 55m
Mon, Feb 26
PHL
LCY
19h 00m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 25
LHR
PHL
17h 19m
Wed, May 2
PHL
LHR
9h 50m
Trip: 8 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5814 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
DEL
Excellent 10.0

Courteous Service and excellent hospitality

EWR
ZRH
Good 6.0

The flight was delayed by 85 minutes from Newark to Zurich

ORD
ZRH
Excellent 10.0

Excellent Service. Excellent food.

PRG
ZRH
Good 7.0

Roughest flight ever, many people got sick, too much turbulence to fly

JFK
ZRH
Good 6.0

On board service

the teminal 4 sevice at JFK: the huge line before the security looked like a complete misorder and for no reason lingest lined I ever saw in airports instead of spliting the crowd in shorted lines to every security crew without maku=ing people to pass long lines with the hand luggage and children, it was really and absolutelu=y far from any comfort.

Tue, Jun 12
LHR
PHL
21h 25m
Mon, Jun 18
PHL
LHR
7h 05m
Trip: 7 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 26 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
LHR
PHL
Mediocre 3.0

This was actually a USAirways flight now rebranded as American. A lot of people had to check baggage. There was no in-seat video entertainment. The crew were surly.

LHR
PHL
Excellent 8.0

The service were very good. Just wish the food better selection.

The leg room were tight.

LHR
PHL
Excellent 10.0

Friendly flight crew made me feel very welcome . Food and drinks service was excellent, nice choices. Movie selection was vast.

LED
HEL
Good 6.5

Nice crew that were helpful.

Small plane, cramped seating.

LHR
PHL
Excellent 8.0

This was a BA-operated flight, not Finnair. 24 hour advance online checkin and seat selection would not work for either segment of this trip. No satisfactory explanation given online, by phone or at airport nor were we able to select seats by telephone.

Wed, Jan 31
LHR
PHL
13h 15m
Tue, Feb 13
PHL
LHR
6h 55m
Trip: 14 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 97 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
PHL
Good 7.2

Salad was slimy and clearly not fresh. Food was not great.

LHR
PHL
Excellent 10.0

Seats with little fold-down head rests on each side, allowing you to sleep/nap/doze in any seat. Really good touch screens for the entertainment system, with no need to have to dig my knuckles into the screen to get it to respond. Good movie selection too. Movies are also available before take off and even after landing. Acceptable white wine (Chenin Blanc). Food was also entirely acceptable.

No individual air/temperature controls (at least in economy), unless it was all buried in the seat-back console some how.

LHR
PHL
Excellent 10.0

great team. good snacks. great room.

LHR
PHL
Excellent 8.3

In flight entertainment is awesome but we left an hour late! Love BA though, wish American Airlines would take a note.

Late

LHR
PHL
Good 6.3

Full flight but I had two seats and a delightful Ghanaian seat mate

Being dumped in Phillie with canceled E.g. To Burlington Vt

Wed, Jan 31
LGW
PHL
15h 23m
Thu, Feb 8
PHL
LGW
18h 25m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

PDX
DFW
Excellent 8.6

Seats smaller than before.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

TPA
PHX
Excellent 9.3

We had a newer plane. I LOVED that the seatbelts had a little more room, and also that each seat had it down screen. I really enjoyed the new pre-flight video; it was entertaining and I appreciated that it allowed the crew to get ready, rather than demonstrate a seatbelt for us.

I am not sure how boarding groups work, but I will never understand why we don't board from the back of the plane to the front. People waiting and trying to load luggage or climb over others makes the pre-flight more stressful than it needs to be. (This is obviously not specific to you airline.)

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

Tue, Mar 13
LCY
PHL
12h 55m
Tue, Mar 20
PHL
LCY
19h 00m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18144 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
BOM
Excellent 10.0

I enjoyed just relaxing, eating good food, drinking as much quality alcohol as I pleased and having all the entertainment I could ask for

The entertainment system could remain active till the actual opening of the doors. Why not?

FRA
DEL
Good 7.6

Everything went well.

Nothing.

IAD
FRA
Good 7.6

The food was good.

The seats were not too comfortable and the video screen was small.

LAX
FRA
Excellent 8.0

Service on board was good.

The walk to the connecting flight was too long and took a lot of time.

DEL
MUC
Okay 4.3

Two flights delayed then no bags when we got to Chicago- disappointing and annoying. Great to arrive with no coats in winter!

Tue, Mar 13
LCY
PHL
12h 55m
Tue, Apr 24
PHL
LCY
17h 45m
Trip: 43 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 11
LHR
PHL
17h 54m
Thu, Apr 19
PHL
LHR
11h 10m
Trip: 9 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5814 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
BCN
ZRH
Excellent 10.0

Friendly service and food

Older plane with no entertainment

ZRH
DEL
Excellent 10.0

Courteous Service and excellent hospitality

JFK
ZRH
Good 6.0

On board service

the teminal 4 sevice at JFK: the huge line before the security looked like a complete misorder and for no reason lingest lined I ever saw in airports instead of spliting the crowd in shorted lines to every security crew without maku=ing people to pass long lines with the hand luggage and children, it was really and absolutelu=y far from any comfort.

ORD
ZRH
Excellent 10.0

Excellent Service. Excellent food.

ZRH
GVA
Excellent 8.4

New aircraft

Lost luggage. Flight delayed.

Tue, Feb 20
LHR
PHL
11h 25m
Wed, Feb 28
PHL
LHR
7h 05m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
LHR
PHL
13h 15m
Tue, Apr 24
PHL
LHR
7h 35m
Trip: 43 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 97 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
PHL
Excellent 8.3

In flight entertainment is awesome but we left an hour late! Love BA though, wish American Airlines would take a note.

Late

LHR
PHL
Good 6.6

The entertainment, food and crew were good

The seats on the 747-400 were less comfortable than the Airbus 300 going to London. The airbus also provided several more inches of legroom.

LHR
PHL
Good 6.0

Seats

LHR
PHL
Mediocre 3.3

The speed of bouncing back from the computer system mishap

The check in people' rudeness, awful food, slow service

LHR
PHL
Good 7.2

Salad was slimy and clearly not fresh. Food was not great.

Mon, Mar 19
LCY
PHL
27h 50m
Mon, Mar 26
PHL
LCY
20h 00m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18144 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
SJJ
MUC
Excellent 10.0

Many bathrooms, crew constantly came around offering juice and water.

ATH
MUC
Excellent 9.3

Excellent aircraft Very nice crew

FRA
IAH
Excellent 9.3

food was excellent

no 'breakfast' specifically, other snack items were available

LAX
FRA
Excellent 8.0

Service on board was good.

The walk to the connecting flight was too long and took a lot of time.

LOS
FRA
Excellent 9.0

Very hospitable. Really enjoyed the food. Got bumped up to Business class on both legs of the trip.

The boarding could have been better organized at Frankfurt. Was very scattered.

Sun, Apr 15
LHR
PHL
23h 50m
Wed, Apr 25
PHL
LHR
7h 35m
Trip: 11 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 26 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Good 6.3

A330 throne seat (2A) is nice and private.

Flight attendant in business class was quite terse and rude.

LHR
PHL
Excellent 8.0

This was a BA-operated flight, not Finnair. 24 hour advance online checkin and seat selection would not work for either segment of this trip. No satisfactory explanation given online, by phone or at airport nor were we able to select seats by telephone.

LHR
PHL
Excellent 9.0

I flew with American to London and with British in the way back... British air is such a nicer experience from the food, to the crew, to the entertainment.

LHR
PHL
Mediocre 3.0

This was actually a USAirways flight now rebranded as American. A lot of people had to check baggage. There was no in-seat video entertainment. The crew were surly.

LHR
PHL
Excellent 10.0

Friendly flight crew made me feel very welcome . Food and drinks service was excellent, nice choices. Movie selection was vast.

Mon, Apr 16
LHR
PHL
17h 54m
Thu, Apr 26
PHL
LHR
11h 12m
Trip: 11 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5814 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
DEL
Excellent 10.0

Courteous Service and excellent hospitality

BCN
ZRH
Excellent 10.0

Friendly service and food

Older plane with no entertainment

ZRH
CPH
Excellent 8.6

Swiss service relayable

JFK
ZRH
Excellent 10.0

Courteous Staff Excellent Service and enough concern for the guests.

ZRH
JFK
Okay 5.6

Food was actually really good.

Please let families with small children board early. This is the first flight I remember where I and other families with small children had to board with everyone else, and it's stressful for all involved.

Wed, Apr 11
LCY
PHL
18h 39m
Thu, Apr 19
PHL
LCY
17h 45m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 19
LHR
PHL
13h 15m
Mon, Mar 26
PHL
LHR
12h 30m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 97 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
PHL
Good 7.6

The choice of movies available via the seat-back entertainment system was outstanding - a mix of recent hits and older classics. The veggie curry and chocolate ganache were much tastier than I expect from airplane food.

Narrow seat.

LHR
PHL
Good 6.3

Full flight but I had two seats and a delightful Ghanaian seat mate

Being dumped in Phillie with canceled E.g. To Burlington Vt

LHR
PHL
Good 6.3

We landed on time.

This was the first time I every flew on BA. I had higher expectations than the reality of the trip. I was told by a traveler that alcoholic drinks were gratis. However, other than the one time the cart passed through no offer was made. I guess you had to buzz for a drink. I expected water to be handed out in the cabin more frequently than it was. Food was inedible. Again, I thought BA had a better reputation. Leg room was tight. Other airlines offer more.

LHR
PHL
Excellent 10.0

great team. good snacks. great room.

LHR
PHL
Excellent 8.3

In flight entertainment is awesome but we left an hour late! Love BA though, wish American Airlines would take a note.

Late

Mon, Feb 5
LCY
PHL
12h 55m
Thu, Feb 15
PHL
LCY
10h 45m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18144 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
PRG
FRA
Excellent 10.0

Great service as always

SJJ
MUC
Excellent 10.0

Many bathrooms, crew constantly came around offering juice and water.

LAX
FRA
Excellent 8.0

Service on board was good.

The walk to the connecting flight was too long and took a lot of time.

LOS
FRA
Excellent 9.0

Very hospitable. Really enjoyed the food. Got bumped up to Business class on both legs of the trip.

The boarding could have been better organized at Frankfurt. Was very scattered.

FRA
IAH
Excellent 9.3

food was excellent

no 'breakfast' specifically, other snack items were available

Tue, May 22
LHR
PHL
16h 03m
Tue, Jun 12
PHL
LHR
9h 50m
Trip: 22 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5814 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
GVA
Excellent 8.4

New aircraft

Lost luggage. Flight delayed.

PRG
ZRH
Good 7.0

Roughest flight ever, many people got sick, too much turbulence to fly

ZRH
JFK
Okay 5.6

Food was actually really good.

Please let families with small children board early. This is the first flight I remember where I and other families with small children had to board with everyone else, and it's stressful for all involved.

ZRH
DEL
Excellent 10.0

Courteous Service and excellent hospitality

EWR
ZRH
Good 6.0

The flight was delayed by 85 minutes from Newark to Zurich

Tue, May 1
LCY
PHL
11h 55m
Mon, May 21
PHL
LCY
17h 45m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 1
LHR
PHL
13h 15m
Mon, May 21
PHL
LHR
7h 15m
Trip: 21 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 97 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
PHL
Excellent 10.0

Seats with little fold-down head rests on each side, allowing you to sleep/nap/doze in any seat. Really good touch screens for the entertainment system, with no need to have to dig my knuckles into the screen to get it to respond. Good movie selection too. Movies are also available before take off and even after landing. Acceptable white wine (Chenin Blanc). Food was also entirely acceptable.

No individual air/temperature controls (at least in economy), unless it was all buried in the seat-back console some how.

LHR
PHL
Excellent 10.0

great team. good snacks. great room.

LHR
PHL
Excellent 10.0

The entertainment (TV in each seat) was great. The food was outstanding (chicken with risotto and beet salad), and so was the service. This was the best British Airways flight I've ever been on!

Nothing!

LHR
PHL
Good 6.0

Seats

LHR
PHL
Mediocre 2.0

Flight was on time and smooth

Television screens went off in the first hour of flight and never came back on. They ran out of the vegetarian pasta dish, because of this my kids didn't eat. Service overall was poor.

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London to Philadelphia Flight Information

Flights Arrive in Philadelphia
Flights Depart from London
Flight Price $396
Distance 3548 miles
Airlines Lufthansa, SWISS, Finnair, British Airways, American Airlines
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.