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Cheap flights from Philadelphia to the United Kingdom from £165

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 24/3. 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
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:30 - 10:00
PHL
-
LGW
21h 30m
1 stop
Multiple Airlines Logo
14:00 - 07:41
LGW
-
PHL
22h 41m
1 stop
£461Multiple Airlines
Mon, 27 Apr - Fri, 8 May
Multiple Airlines Logo
20:25 - 17:50
PHL
-
MAN
16h 25m
1 stop
Multiple Airlines Logo
11:30 - 18:55
MAN
-
PHL
12h 25m
1 stop
£463Multiple Airlines
Mon, 27 Apr - Wed, 6 May
Multiple Airlines Logo
20:25 - 12:55
PHL
-
STN
11h 30m
1 stop
Multiple Airlines Logo
08:30 - 18:55
STN
-
PHL
15h 25m
1 stop
£466Multiple Airlines
Sun, 26 Apr - Tue, 5 May
British Airways Logo
18:45 - 10:30
PHL
-
GLA
10h 45m
1 stop
British Airways Logo
08:35 - 15:35
GLA
-
PHL
12h 00m
1 stop
£478British Airways
Tue, 4 Aug - Tue, 25 Aug
JetBlue Logo
09:12 - 09:35
PHL
-
LGW
19h 23m
1 stop
JetBlue Logo
12:20 - 19:49
LGW
-
PHL
12h 29m
1 stop
£486JetBlue
Sat, 22 Aug - Sat, 29 Aug
British Airways Logo
17:50 - 14:40
PHL
-
GLA
15h 50m
2 stops
British Airways Logo
09:35 - 16:40
GLA
-
PHL
12h 05m
1 stop
£496British Airways
Tue, 4 Aug - Tue, 25 Aug
JetBlue Logo
18:33 - 10:00
PHL
-
EDI
10h 27m
1 stop
JetBlue Logo
11:30 - 21:40
EDI
-
PHL
15h 10m
1 stop
£510JetBlue
Mon, 4 May - Tue, 12 May
American Airlines Logo
22:10 - 17:40
PHL
-
GLA
14h 30m
1 stop
American Airlines Logo
08:35 - 15:30
GLA
-
PHL
11h 55m
1 stop
£517American Airlines
Mon, 30 Mar - Thu, 9 Apr
American Airlines Logo
19:35 - 13:15
PHL
-
GLA
12h 40m
1 stop
American Airlines Logo
05:55 - 15:30
GLA
-
PHL
14h 35m
1 stop
£518American Airlines
Tue, 21 Apr - Tue, 28 Apr
Iberia Logo
20:15 - 15:15
PHL
-
LCY
14h 00m
1 stop
Iberia Logo
09:50 - 17:40
LCY
-
PHL
12h 50m
1 stop
£610Iberia
Mon, 13 Apr - Wed, 22 Apr

Air Canada flights from Philadelphia to United Kingdom

Our best Air Canada deals on Philadelphia to United Kingdom flight tickets
Air Canada
13 Apr
PHL15:30Philadelphia
13h 55m
2 stops
MAN10:25Manchester
29 Apr
MAN06:05Manchester
13h 41m
2 stops
PHL14:46Philadelphia
£537
Air Canada
29 Mar
PHL15:30Philadelphia
13h 30m
1 stop
LHR10:00London Heathrow
7 Apr
LHR14:05London Heathrow
29h 41m
1 stop
PHL14:46Philadelphia
£558
Air Canada
22 Apr
PHL15:30Philadelphia
10h 00m
1 stop
LHR06:30London Heathrow
29 Apr
LHR06:50London Heathrow
12h 56m
2 stops
PHL14:46Philadelphia
£572

JetBlue flights from Philadelphia to United Kingdom

Our best JetBlue deals on Philadelphia to United Kingdom flight tickets
JetBlue
22 Aug
PHL09:12Philadelphia
19h 23m
1 stop
LGW09:35London Gatwick
29 Aug
LGW12:20London Gatwick
12h 29m
1 stop
PHL19:49Philadelphia
£486
JetBlue
4 May
PHL18:33Philadelphia
10h 27m
1 stop
EDI10:00Edinburgh Turnhouse
12 May
EDI11:30Edinburgh Turnhouse
15h 10m
1 stop
PHL21:40Philadelphia
£510
JetBlue
29 Mar
PHL06:00Philadelphia
19h 30m
1 stop
LHR06:30London Heathrow
1 Apr
LHR08:40London Heathrow
18h 59m
1 stop
PHL22:39Philadelphia
£514

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 9 March 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

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 27/4

07:30-10:00

1 stop21h 30m

London Gatwick

Fri 8/5

14:00-07:41

1 stop22h 41m

£461

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 27/4

20:25-17:50

1 stop16h 25m

Manchester

Wed 6/5

11:30-18:55

1 stop12h 25m

£463

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sun 26/4

20:25-12:55

1 stop11h 30m

London Stansted

Tue 5/5

08:30-18:55

1 stop15h 25m

£466
Fastest return journey

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 4/8

18:45-10:30

1 stop10h 45m

Glasgow Intl

Tue 25/8

08:35-15:35

1 stop12h 00m

£478

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sat 22/8

09:12-09:35

1 stop19h 23m

London Gatwick

Sat 29/8

12:20-19:49

1 stop12h 29m

£486

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 4/8

17:50-14:40

2 stops15h 50m

Glasgow Intl

Tue 25/8

09:35-16:40

1 stop12h 05m

£496

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Mon 4/5

18:33-10:00

1 stop10h 27m

Edinburgh Turnhouse

Tue 12/5

11:30-21:40

1 stop15h 10m

£510

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Mon 30/3

22:10-17:40

1 stop14h 30m

Glasgow Intl

Thu 9/4

08:35-15:30

1 stop11h 55m

£517

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 21/4

19:35-13:15

1 stop12h 40m

Glasgow Intl

Tue 28/4

05:55-15:30

1 stop14h 35m

£518

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Mon 13/4

20:15-15:15

1 stop14h 00m

London City

Wed 22/4

09:50-17:40

1 stop12h 50m

£610

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 £495.

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 £501. 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 £740.

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 £585. Try not to purchase tickets in the evening because they tend to be around £588. 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 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 £618 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 £515 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 45% 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

£357

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 £357. The best return flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is £585.
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 £385Free CancellationRating
6.7
7,781 reviews
Search British Airways flights
Aer LingusPriceFrom £392Free CancellationRating
7.2
1,471 reviews
Search Aer Lingus flights
American AirlinesPriceFrom £510Free CancellationRating
7.1
11,406 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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