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Cheap flights from Philadelphia to the United Kingdom from £134

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 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Philadelphia to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:05 - 19:50
PHL
-
EDI
28h 45m
2 stops
Multiple Airlines Logo
22:00 - 15:41
EDI
-
PHL
22h 41m
2 stops
£553Multiple Airlines
Sun, 9 Aug - Tue, 18 Aug
Multiple Airlines Logo
20:25 - 11:00
PHL
-
MAN
9h 35m
1 stop
Multiple Airlines Logo
18:25 - 18:55
MAN
-
PHL
29h 30m
2 stops
£563Multiple Airlines
Sun, 20 Sep - Wed, 30 Sep
Multiple Airlines Logo
20:25 - 10:40
PHL
-
EDI
9h 15m
1 stop
Multiple Airlines Logo
19:55 - 00:20
EDI
-
PHL
33h 25m
2 stops
£572Multiple Airlines
Sun, 20 Sep - Fri, 25 Sep
JetBlue Logo
09:20 - 10:00
PHL
-
EDI
19h 40m
1 stop
JetBlue Logo
11:30 - 20:00
EDI
-
PHL
13h 30m
1 stop
£590JetBlue
Wed, 29 Jul - Tue, 4 Aug
JetBlue Logo
09:12 - 10:00
PHL
-
EDI
19h 48m
1 stop
JetBlue Logo
11:30 - 08:30
EDI
-
PHL
26h 00m
1 stop
£603JetBlue
Sun, 19 Jul - Sun, 26 Jul
British Airways Logo
18:45 - 12:30
PHL
-
GLA
12h 45m
1 stop
British Airways Logo
09:30 - 16:40
GLA
-
PHL
12h 10m
1 stop
£618British Airways
Wed, 23 Sep - Wed, 30 Sep
British Airways Logo
18:45 - 10:30
PHL
-
GLA
10h 45m
1 stop
British Airways Logo
09:30 - 16:40
GLA
-
PHL
12h 10m
1 stop
£619British Airways
Wed, 19 Aug - Wed, 26 Aug
Aer Lingus Logo
13:53 - 08:05
PHL
-
GLA
13h 12m
2 stops
Aer Lingus Logo
15:55 - 18:55
GLA
-
PHL
32h 00m
1 stop
£619Aer Lingus
Wed, 12 Aug - Wed, 19 Aug
American Airlines Logo
18:45 - 10:30
PHL
-
GLA
10h 45m
1 stop
American Airlines Logo
06:25 - 15:35
GLA
-
PHL
14h 10m
1 stop
£629American Airlines
Wed, 12 Aug - Wed, 19 Aug
Aer Lingus Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Aer Lingus Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£809Aer Lingus
Wed, 22 Jul - Wed, 29 Jul

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Finnair flights from Philadelphia to United Kingdom

Our best Finnair deals on Philadelphia to United Kingdom flight tickets
Finnair
14 Sept
PHL22:20Philadelphia
7h 00m
LHR10:20London Heathrow
25 Sept
LHR07:00London Heathrow
11h 45m
1 stop
PHL13:45Philadelphia
£671
Finnair
7 Oct
PHL12:52Philadelphia
15h 08m
1 stop
LHR09:00London Heathrow
15 Oct
LHR07:05London Heathrow
11h 45m
1 stop
PHL13:50Philadelphia
£673

American Airlines flights from Philadelphia to United Kingdom

Our best American Airlines deals on Philadelphia to United Kingdom flight tickets
American Airlines
12 Aug
PHL18:45Philadelphia
10h 45m
1 stop
GLA10:30Glasgow Intl
19 Aug
GLA06:25Glasgow Intl
14h 10m
1 stop
PHL15:35Philadelphia
£629
American Airlines
23 Sept
PHL22:20Philadelphia
12h 15m
1 stop
GLA15:35Glasgow Intl
30 Sept
GLA09:30Glasgow Intl
15h 25m
2 stops
PHL19:55Philadelphia
£636
American Airlines
19 Aug
PHL18:45Philadelphia
10h 45m
1 stop
GLA10:30Glasgow Intl
26 Aug
GLA06:25Glasgow Intl
17h 25m
2 stops
PHL18:50Philadelphia
£637

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 15 June 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

Cheapest return flight

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Sun 9/8

10:05-19:50

2 stops28h 45m

Edinburgh Turnhouse

Tue 18/8

22:00-15:41

2 stops22h 41m

£553

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Sun 20/9

20:25-11:00

1 stop9h 35m

Manchester

Wed 30/9

18:25-18:55

2 stops29h 30m

£563

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Sun 20/9

20:25-10:40

1 stop9h 15m

Edinburgh Turnhouse

Fri 25/9

19:55-00:20

2 stops33h 25m

£572

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Wed 29/7

09:20-10:00

1 stop19h 40m

Edinburgh Turnhouse

Tue 4/8

11:30-20:00

1 stop13h 30m

£590

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Sun 19/7

09:12-10:00

1 stop19h 48m

Edinburgh Turnhouse

Sun 26/7

11:30-08:30

1 stop26h 00m

£603

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 23/9

18:45-12:30

1 stop12h 45m

Glasgow Intl

Wed 30/9

09:30-16:40

1 stop12h 10m

£618
Fastest return journey

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 19/8

18:45-10:30

1 stop10h 45m

Glasgow Intl

Wed 26/8

09:30-16:40

1 stop12h 10m

£619

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 12/8

13:53-08:05

2 stops13h 12m

Glasgow Intl

Wed 19/8

15:55-18:55

1 stop32h 00m

£619

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 12/8

18:45-10:30

1 stop10h 45m

Glasgow Intl

Wed 19/8

06:25-15:35

1 stop14h 10m

£629

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 22/7

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Wed 29/7

09:20-18:55

1 stop14h 35m

£809

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 February. Flight prices, which tend to average around £34, 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 February, then departing from Philadelphia during the month January is also very affordable. Most momondo users find prices during this month for around £77.

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 £521. 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 £1,082.

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 afternoon when flights can be purchased for as low as £649. Try not to purchase tickets in the evening because they tend to be around £666. 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 Edinburgh Turnhouse for the best Philadelphia - United Kingdom flight prices

How far in advance should I book a flight from Philadelphia to the 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 £667 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 £494 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 16% 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

£772

Fastest flight time

6h 35m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is £772
The fastest flight from Philadelphia to United Kingdom takes 6h 35m
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 London Heathrow (LHR), Edinburgh Turnhouse (EDI).
Search flight deals

Frequently asked questions about flying from Philadelphia to the United Kingdom

  • 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
8,051 reviews
Search British Airways flights
American AirlinesPriceFrom £509Free CancellationRating
7.1
11,667 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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