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Cheap flights from Philadelphia to the United Kingdom from $184

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 2/9. 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 round-trip flights

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Multiple Airlines Logo
4:35 pm - 10:20 amPHL-EDI
12h 45m2 stops
Multiple Airlines Logo
8:40 am - 10:46 pmEDI-PHL
19h 06m3 stops
$562Multiple Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 20
British Airways Logo
7:35 pm - 2:15 pmPHL-GLA
14h 40m1 stop
British Airways Logo
8:40 am - 5:15 pmGLA-PHL
12h 35m1 stop
$592British Airways
Find Deal
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
6:35 pm - 6:35 amPHL-LHR
7h 00mnonstop
American Airlines Logo
7:50 am - 2:00 pmLHR-PHL
11h 10m1 stop
$601American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Aer Lingus Logo
5:30 pm - 7:45 amPHL-BHX
9h 15m1 stop
Aer Lingus Logo
8:15 am - 4:00 pmBHX-PHL
12h 45m1 stop
$602Aer Lingus
Find Deal
Thu, Dec 4 - Sun, Dec 7
Aer Lingus Logo
5:30 pm - 10:10 amPHL-LHR
11h 40m1 stop
Aer Lingus Logo
8:50 am - 4:00 pmLHR-PHL
12h 10m1 stop
$603Aer Lingus
Find Deal
Mon, Dec 1 - Fri, Dec 5
American Airlines Logo
5:07 pm - 7:00 amPHL-LHR
8h 53m1 stop
American Airlines Logo
7:50 am - 2:00 pmLHR-PHL
11h 10m1 stop
$605American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Iberia Logo
4:40 pm - 8:50 amPHL-LCY
11h 10m1 stop
Iberia Logo
7:50 am - 3:35 pmLCY-PHL
12h 45m1 stop
$636Iberia
Find Deal
Wed, Feb 18 - Wed, Mar 4
Iberia Logo
7:55 pm - 2:05 pmPHL-LCY
13h 10m1 stop
Iberia Logo
7:50 am - 3:35 pmLCY-PHL
12h 45m1 stop
$650Iberia
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Wed, Feb 11 - Wed, Feb 25
United Airlines Logo
8:00 am - 12:45 pmPHL-BHX
24h 45m3 stops
United Airlines Logo
1:25 pm - 2:17 pmBHX-PHL
28h 52m2 stops
$657United Airlines
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Mon, Mar 16 - Tue, Mar 24
United Airlines Logo
1:15 pm - 10:30 amPHL-EDI
16h 15m2 stops
United Airlines Logo
12:30 pm - 2:07 pmEDI-PHL
30h 37m2 stops
$661United Airlines
Find Deal
Fri, Dec 5 - Wed, Dec 10

Scandinavian Airlines flights from Philadelphia to United Kingdom

Our best Scandinavian Airlines deals on Philadelphia to United Kingdom flight tickets
Scandinavian Airlines
Feb 5
PHL6:02 amPhiladelphia
22h 18m
2 stops
LHR9:20 amLondon Heathrow
Feb 9
LHR6:40 amLondon Heathrow
19h 36m
2 stops
PHL9:16 pmPhiladelphia
$599
Find similar
Scandinavian Airlines
Jan 27
PHL6:02 amPhiladelphia
22h 18m
2 stops
LHR9:20 amLondon Heathrow
Feb 9
LHR7:05 amLondon Heathrow
19h 11m
3 stops
PHL9:16 pmPhiladelphia
$602
Find similar
Scandinavian Airlines
Dec 8
PHL2:24 pmPhiladelphia
22h 16m
2 stops
LHR5:40 pmLondon Heathrow
Dec 12
LHR7:30 pmLondon Heathrow
29h 47m
2 stops
PHL8:17 pmPhiladelphia
$629
Find similar

United Airlines flights from Philadelphia to United Kingdom

Our best United Airlines deals on Philadelphia to United Kingdom flight tickets
United Airlines
Nov 22
PHL8:00 pmPhiladelphia
29h 40m
1 stop
LHR6:40 amLondon Heathrow
Dec 4
LHR1:25 pmLondon Heathrow
30h 25m
1 stop
PHL2:50 pmPhiladelphia
$619
Find similar
United Airlines
Jan 11
PHL3:30 pmPhiladelphia
10h 40m
1 stop
LHR7:10 amLondon Heathrow
Jan 23
LHR6:50 amLondon Heathrow
15h 44m
2 stops
PHL5:34 pmPhiladelphia
$621
Find similar
United Airlines
Jan 14
PHL3:30 pmPhiladelphia
10h 40m
1 stop
LHR7:10 amLondon Heathrow
Jan 22
LHR8:30 amLondon Heathrow
12h 35m
1 stop
PHL4:05 pmPhiladelphia
$622
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated November 18, 2025.
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 1/11

4:35 pm-10:20 am

2 stops12h 45m

Edinburgh Turnhouse

Tue 1/20

8:40 am-10:46 pm

3 stops19h 06m

$562

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 3/18

7:35 pm-2:15 pm

1 stop14h 40m

Glasgow Intl

Wed 3/25

8:40 am-5:15 pm

1 stop12h 35m

$592

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 12/2

6:35 pm-6:35 am

Nonstop7h 00m

London Heathrow

Tue 12/9

7:50 am-2:00 pm

1 stop11h 10m

$601

PhiladelphiaBirmingham

PHL - BHX

PHLBHX

Philadelphia

Thu 12/4

5:30 pm-7:45 am

1 stop9h 15m

Birmingham

Sun 12/7

8:15 am-4:00 pm

1 stop12h 45m

$602

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 12/1

5:30 pm-10:10 am

1 stop11h 40m

London Heathrow

Fri 12/5

8:50 am-4:00 pm

1 stop12h 10m

$603

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 12/2

5:07 pm-7:00 am

1 stop8h 53m

London Heathrow

Tue 12/9

7:50 am-2:00 pm

1 stop11h 10m

$605

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Wed 2/18

4:40 pm-8:50 am

1 stop11h 10m

London City

Wed 3/4

7:50 am-3:35 pm

1 stop12h 45m

$636

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Wed 2/11

7:55 pm-2:05 pm

1 stop13h 10m

London City

Wed 2/25

7:50 am-3:35 pm

1 stop12h 45m

$650

PhiladelphiaBirmingham

PHL - BHX

PHLBHX

Philadelphia

Mon 3/16

8:00 am-12:45 pm

3 stops24h 45m

Birmingham

Tue 3/24

1:25 pm-2:17 pm

2 stops28h 52m

$657

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Fri 12/5

1:15 pm-10:30 am

2 stops16h 15m

Edinburgh Turnhouse

Wed 12/10

12:30 pm-2:07 pm

2 stops30h 37m

$661

Flights are sorted by cheapest round-trip 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?

In general, September is the cheapest month to fly from Philadelphia to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $648. If you aren’t able to travel to United Kingdom during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $659.

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 Wednesday when prices can be found for as low as $776. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $988.

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

According to our data, the cheapest time of day to fly to United Kingdom is at noon. momondo users have found flights departing from Philadelphia to United Kingdom at noon for as low as $764. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the afternoon, with an average ticket price of $879. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $813 when searching weeks out. 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 $696 on momondo.

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

There are 4 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 15% 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

$462

Fastest flight time

6h 40m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in United Kingdom

2 airports
The best one-way flight to United Kingdom from Philadelphia in the past 72 hours is $462. The best round-trip flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is $727.
The fastest flight from Philadelphia to United Kingdom takes 6h 40m
Direct flights go from Philadelphia to United Kingdom on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 2 airports near United Kingdom: London Heathrow (LHR), 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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
JetBluePriceFrom $503Free CancellationRating
7.2
2,905 reviews
Search JetBlue flights
American AirlinesPriceFrom $505Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
British AirwaysPriceFrom $509Free CancellationRating
6.7
7,528 reviews
Search British Airways flights
FinnairPriceFrom $514Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
Aer LingusPriceFrom $523Free CancellationRating
7.2
1,373 reviews
Search Aer Lingus flights
Air CanadaPriceFrom $541Free CancellationRating
7.1
10,459 reviews
Search Air Canada flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
IberiaPriceFrom $583Free CancellationRating
7.0
3,020 reviews
Search Iberia flights
LufthansaPriceFrom $622Free CancellationRating
6.8
7,576 reviews
Search Lufthansa flights
DeltaPriceFrom $784Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Philadelphia to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

Yes. All flights to United Kingdom from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to United Kingdom.

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

Yes. momondo can track prices for Philadelphia to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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