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Cheap flights from Philadelphia to the United Kingdom from $172

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 10/6. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:25 pm - 10:40 am
PHL
-
EDI
9h 15m
1 stop
Multiple Airlines Logo
5:40 pm - 9:32 am
EDI
-
PHL
43h 52m
2 stops
$773Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
Multiple Airlines Logo
4:20 pm - 7:40 pm
PHL
-
EDI
22h 20m
2 stops
Multiple Airlines Logo
6:15 am - 9:32 pm
EDI
-
PHL
20h 17m
2 stops
$774Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
4:20 pm - 9:15 pm
PHL
-
GLA
23h 55m
2 stops
Multiple Airlines Logo
10:35 pm - 2:47 pm
GLA
-
PHL
21h 12m
2 stops
$780Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
3:25 pm - 5:30 pm
PHL
-
EDI
21h 05m
2 stops
Multiple Airlines Logo
11:55 pm - 9:34 pm
EDI
-
PHL
26h 39m
2 stops
$783Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
British Airways Logo
1:51 pm - 9:20 am
PHL
-
ABZ
14h 29m
2 stops
British Airways Logo
8:20 pm - 12:15 pm
ABZ
-
PHL
20h 55m
1 stop
$792British Airways
Tue, Sep 29 - Wed, Oct 7
Aer Lingus Logo
1:51 pm - 8:05 am
PHL
-
GLA
13h 14m
2 stops
Aer Lingus Logo
1:20 pm - 6:55 pm
GLA
-
PHL
10h 35m
1 stop
$810Aer Lingus
Sun, Sep 13 - Tue, Oct 6
Aer Lingus Logo
1:51 pm - 8:05 am
PHL
-
GLA
13h 14m
2 stops
Aer Lingus Logo
1:20 pm - 6:55 pm
GLA
-
PHL
10h 35m
1 stop
$815Aer Lingus
Wed, Sep 30 - Tue, Oct 6
British Airways Logo
6:45 pm - 1:40 pm
PHL
-
ABZ
13h 55m
1 stop
British Airways Logo
6:50 am - 4:40 pm
ABZ
-
PHL
14h 50m
1 stop
$831British Airways
Tue, Sep 29 - Wed, Oct 7
American Airlines Logo
5:30 pm - 1:40 pm
PHL
-
ABZ
15h 10m
2 stops
American Airlines Logo
6:50 am - 7:27 pm
ABZ
-
PHL
17h 37m
2 stops
$860American Airlines
Tue, Sep 29 - Wed, Oct 7
Finnair Logo
12:52 pm - 12:50 pm
PHL
-
LHR
18h 58m
1 stop
Finnair Logo
8:35 pm - 1:50 pm
LHR
-
PHL
22h 15m
1 stop
$925Finnair
Wed, Oct 14 - Mon, Oct 19

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Finnair flights from Philadelphia to United Kingdom

Our best Finnair deals on Philadelphia to United Kingdom flight tickets
Finnair
Oct 13
PHL7:55 pmPhiladelphia
6h 35m
EDI7:30 amEdinburgh Turnhouse
Oct 26
EDI5:55 pmEdinburgh Turnhouse
24h 55m
1 stop
PHL2:50 pmPhiladelphia
$871
Finnair
Oct 14
PHL12:52 pmPhiladelphia
18h 58m
1 stop
LHR12:50 pmLondon Heathrow
Oct 19
LHR8:35 pmLondon Heathrow
22h 15m
1 stop
PHL1:50 pmPhiladelphia
$925
Finnair
Oct 6
PHL10:20 pmPhiladelphia
7h 00m
LHR10:20 amLondon Heathrow
Oct 12
LHR8:35 pmLondon Heathrow
22h 15m
1 stop
PHL1:50 pmPhiladelphia
$932

TAP AIR PORTUGAL flights from Philadelphia to United Kingdom

Our best TAP AIR PORTUGAL deals on Philadelphia to United Kingdom flight tickets
TAP AIR PORTUGAL
Oct 7
PHL6:48 pmPhiladelphia
20h 42m
2 stops
LGW8:30 pmLondon Gatwick
Oct 14
LGW12:05 pmLondon Gatwick
26h 45m
2 stops
PHL9:50 amPhiladelphia
$920
TAP AIR PORTUGAL
Oct 6
PHL10:45 amPhiladelphia
18h 35m
2 stops
LHR10:20 amLondon Heathrow
Oct 13
LHR11:20 amLondon Heathrow
27h 30m
2 stops
PHL9:50 amPhiladelphia
$937
TAP AIR PORTUGAL
Jul 22
PHL9:20 amPhiladelphia
25h 15m
2 stops
LHR3:35 pmLondon Heathrow
Oct 13
LHR6:00 amLondon Heathrow
21h 43m
2 stops
PHL10:43 pmPhiladelphia
$971

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 July 12, 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 round-trip

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Tue 10/20

8:25 pm-10:40 am

1 stop9h 15m

Edinburgh Turnhouse

Tue 10/27

5:40 pm-9:32 am

2 stops43h 52m

$773

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Tue 9/1

4:20 pm-7:40 pm

2 stops22h 20m

Edinburgh Turnhouse

Tue 9/8

6:15 am-9:32 pm

2 stops20h 17m

$774

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 9/9

4:20 pm-9:15 pm

2 stops23h 55m

Glasgow Intl

Wed 9/16

10:35 pm-2:47 pm

2 stops21h 12m

$780

PhiladelphiaEdinburgh

PHL - EDI

PHLEDI

Philadelphia

Mon 8/17

3:25 pm-5:30 pm

2 stops21h 05m

Edinburgh Turnhouse

Sun 8/23

11:55 pm-9:34 pm

2 stops26h 39m

$783

PhiladelphiaAberdeen

PHL - ABZ

PHLABZ

Philadelphia

Tue 9/29

1:51 pm-9:20 am

2 stops14h 29m

Aberdeen Dyce

Wed 10/7

8:20 pm-12:15 pm

1 stop20h 55m

$792
Quickest round-trip

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Sun 9/13

1:51 pm-8:05 am

2 stops13h 14m

Glasgow Intl

Tue 10/6

1:20 pm-6:55 pm

1 stop10h 35m

$810

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 9/30

1:51 pm-8:05 am

2 stops13h 14m

Glasgow Intl

Tue 10/6

1:20 pm-6:55 pm

1 stop10h 35m

$815

PhiladelphiaAberdeen

PHL - ABZ

PHLABZ

Philadelphia

Tue 9/29

6:45 pm-1:40 pm

1 stop13h 55m

Aberdeen Dyce

Wed 10/7

6:50 am-4:40 pm

1 stop14h 50m

$831

PhiladelphiaAberdeen

PHL - ABZ

PHLABZ

Philadelphia

Tue 9/29

5:30 pm-1:40 pm

2 stops15h 10m

Aberdeen Dyce

Wed 10/7

6:50 am-7:27 pm

2 stops17h 37m

$860

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 10/14

12:52 pm-12:50 pm

1 stop18h 58m

London Heathrow

Mon 10/19

8:35 pm-1:50 pm

1 stop22h 15m

$925

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, February 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 $45. If you aren’t able to travel to United Kingdom during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $103.

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 $824. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,076.

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 in the afternoon. momondo users have found flights departing from Philadelphia to United Kingdom in the afternoon for as low as $873. 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 evening, with an average ticket price of $1,025. Departure times in the evening 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 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 $913 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 $708 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 18% 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

$456

Fastest flight time

6h 35m

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 $456. The best round-trip flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is $945.
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 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
Aer LingusPriceFrom $484Free CancellationRating
7.3
1,659 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $497Free CancellationRating
6.7
8,106 reviews
Search British Airways flights
American AirlinesPriceFrom $507Free CancellationRating
7.1
11,811 reviews
Search American Airlines flights
FinnairPriceFrom $513Free CancellationRating
7.6
1,418 reviews
Search Finnair flights
IberiaPriceFrom $559Free CancellationRating
7.0
3,254 reviews
Search Iberia flights
LufthansaPriceFrom $622Free CancellationRating
6.8
8,130 reviews
Search Lufthansa flights
JetBluePriceFrom $638Free CancellationRating
7.1
3,011 reviews
Search JetBlue 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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