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Cheap flights from Philadelphia to the United Kingdom from £124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to the United Kingdom departing on 1/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

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Multiple Airlines Logo
17:30 - 07:25
PHL
-
EDI
8h 55m
1 stop
Multiple Airlines Logo
08:40 - 17:00
EDI
-
PHL
12h 20m
1 stop
£395Multiple Airlines
Sun, 1 Mar - Tue, 10 Mar
Multiple Airlines Logo
09:15 - 10:25
PHL
-
MAN
20h 10m
2 stops
Multiple Airlines Logo
06:05 - 14:46
MAN
-
PHL
13h 41m
2 stops
£402Multiple Airlines
Mon, 27 Apr - Wed, 29 Apr
British Airways Logo
15:57 - 11:25
PHL
-
MAN
14h 28m
2 stops
British Airways Logo
19:25 - 17:00
MAN
-
PHL
25h 35m
2 stops
£405British Airways
Tue, 3 Mar - Tue, 10 Mar
British Airways Logo
18:35 - 11:25
PHL
-
MAN
11h 50m
1 stop
British Airways Logo
19:25 - 14:55
MAN
-
PHL
23h 30m
2 stops
£407British Airways
Tue, 3 Mar - Tue, 10 Mar
American Airlines Logo
19:40 - 14:00
PHL
-
MAN
13h 20m
1 stop
American Airlines Logo
16:20 - 16:15
MAN
-
PHL
28h 55m
1 stop
£421American Airlines
Mon, 16 Feb - Mon, 23 Feb
American Airlines Logo
19:50 - 07:50
PHL
-
LHR
7h 00mdirect
American Airlines Logo
10:15 - 13:30
LHR
-
PHL
8h 15mdirect
£444American Airlines
Sun, 1 Feb - Tue, 10 Feb
JetBlue Logo
18:33 - 09:20
PHL
-
EDI
9h 47m
1 stop
JetBlue Logo
11:30 - 17:38
EDI
-
PHL
11h 08m
1 stop
£487JetBlue
Tue, 28 Apr - Thu, 7 May
JetBlue Logo
18:33 - 09:20
PHL
-
EDI
9h 47m
1 stop
JetBlue Logo
11:30 - 21:40
EDI
-
PHL
15h 10m
1 stop
£490JetBlue
Tue, 28 Apr - Fri, 8 May
Aer Lingus Logo
08:25 - 08:40
PHL
-
SOU
19h 15m
2 stops
Aer Lingus Logo
20:00 - 18:55
SOU
-
PHL
27h 55m
1 stop
£663Aer Lingus
Sun, 26 Apr - Mon, 11 May
Aer Lingus Logo
20:25 - 16:35
PHL
-
SOU
15h 10m
1 stop
Aer Lingus Logo
20:00 - 18:55
SOU
-
PHL
27h 55m
1 stop
£669Aer Lingus
Sun, 26 Apr - Mon, 11 May

Air Canada flights from Philadelphia to United Kingdom

Our best Air Canada deals on Philadelphia to United Kingdom flight tickets
Air Canada
9 Mar
PHL15:30Philadelphia
11h 40m
1 stop
LHR07:10London Heathrow
17 Mar
LHR09:00London Heathrow
17h 46m
2 stops
PHL22:46Philadelphia
£438
Air Canada
4 Feb
PHL15:30Philadelphia
10h 40m
1 stop
LHR07:10London Heathrow
10 Feb
LHR06:50London Heathrow
12h 57m
2 stops
PHL14:47Philadelphia
£439
Air Canada
11 Feb
PHL10:30Philadelphia
15h 40m
2 stops
LHR07:10London Heathrow
17 Feb
LHR09:00London Heathrow
18h 46m
2 stops
PHL22:46Philadelphia
£441

Iberia flights from Philadelphia to United Kingdom

Our best Iberia deals on Philadelphia to United Kingdom flight tickets
Iberia
1 Feb
PHL13:49Philadelphia
12h 11m
1 stop
LHR07:00London Heathrow
9 Feb
LHR20:50London Heathrow
46h 15m
2 stops
PHL14:05Philadelphia
£439
Iberia
5 Mar
PHL13:46Philadelphia
12h 14m
1 stop
LHR07:00London Heathrow
11 Mar
LHR20:50London Heathrow
22h 15m
1 stop
PHL15:05Philadelphia
£459
Iberia
25 Feb
PHL18:35Philadelphia
7h 00m
LHR06:35London Heathrow
9 Mar
LHR10:35London Heathrow
8h 00m
PHL14:35Philadelphia
£462

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Philadelphia to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Sun 1/3

17:30-07:25

1 stop8h 55m

Edinburgh Turnhouse

Tue 10/3

08:40-17:00

1 stop12h 20m

£395

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 27/4

09:15-10:25

2 stops20h 10m

Manchester

Wed 29/4

06:05-14:46

2 stops13h 41m

£402

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 3/3

15:57-11:25

2 stops14h 28m

Manchester

Tue 10/3

19:25-17:00

2 stops25h 35m

£405

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Tue 3/3

18:35-11:25

1 stop11h 50m

Manchester

Tue 10/3

19:25-14:55

2 stops23h 30m

£407

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 16/2

19:40-14:00

1 stop13h 20m

Manchester

Mon 23/2

16:20-16:15

1 stop28h 55m

£421

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 1/2

19:50-07:50

Nonstop7h 00m

London Heathrow

Tue 10/2

10:15-13:30

Nonstop8h 15m

£444

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Tue 28/4

18:33-09:20

1 stop9h 47m

Edinburgh Turnhouse

Thu 7/5

11:30-17:38

1 stop11h 08m

£487

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Tue 28/4

18:33-09:20

1 stop9h 47m

Edinburgh Turnhouse

Fri 8/5

11:30-21:40

1 stop15h 10m

£490

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 26/4

08:25-08:40

2 stops19h 15m

Southampton Eastleigh

Mon 11/5

20:00-18:55

1 stop27h 55m

£663

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 26/4

20:25-16:35

1 stop15h 10m

Southampton Eastleigh

Mon 11/5

20:00-18:55

1 stop27h 55m

£669

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Philadelphia to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Philadelphia is in September. Flight prices, which tend to average around £482, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of September, then departing from Philadelphia during the month November is also very affordable. Most momondo users find prices during this month for around £494.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Philadelphia to United Kingdom is on a Tuesday. Travellers who choose to depart for United Kingdom on a Tuesday will often find tickets for as low as £497. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to United Kingdom for around £739.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £568. Try not to purchase tickets in the afternoon because they tend to be around £581. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Philadelphia to United Kingdom flight route?

Fly from Philadelphia to London Heathrow for the best Philadelphia - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £614 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Philadelphia for as low as £514 on momondo.

What cabin class options are available on Philadelphia to United Kingdom flights?

There are 3 cabin classes available to choose from on Philadelphia to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to United Kingdom flights?

You could potentially save up to 35% on your flight if you consider stops on a Philadelphia to United Kingdom flight.

Cheap Philadelphia to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to United Kingdom

Best price found

£416

Fastest flight time

6h 40m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Philadelphia in the past 72 hours is £416. The best return flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is £526.
The fastest flight from Philadelphia to United Kingdom takes 6h 40m
Direct flights go from Philadelphia to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Philadelphia there are direct flights to Edinburgh Turnhouse (EDI).
Search flight deals

  • When did momondo last update prices for flights from Philadelphia Airport to United Kingdom?

    Prices for flights from Philadelphia Airport to United Kingdom are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to United Kingdom?

  • How old do you have to be to fly from Philadelphia Airport to United Kingdom?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to United Kingdom?

Best airlines flying from Philadelphia to United Kingdom

Compare and see reviews for airlines that fly from Philadelphia to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £384Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
Aer LingusPriceFrom £391Free CancellationRating
7.2
1,439 reviews
Search Aer Lingus flights
JetBluePriceFrom £426Free CancellationRating
7.2
2,889 reviews
Search JetBlue flights
American AirlinesPriceFrom £509Free CancellationRating
7.2
11,173 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to United Kingdom?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Philadelphia.

Can I find flights from Philadelphia to United Kingdom with flexible booking policies on momondo?

Flights from Philadelphia to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to United Kingdom?

Once all potential Philadelphia to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to United Kingdom right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to United Kingdom from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United Kingdom

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