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Cheap flights from Philadelphia to the United Kingdom from $281

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
0 bags

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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 - 9:00 pm
PHL
-
EDI
19h 35m
1 stop
Multiple Airlines Logo
7:30 pm - 11:43 pm
EDI
-
PHL
33h 13m
2 stops
$771Multiple Airlines
Sun, Aug 16 - Tue, Sep 1
Air Canada Logo
4:35 pm - 8:40 am
PHL
-
MAN
11h 05m
1 stop
Air Canada Logo
6:10 am - 2:44 pm
MAN
-
PHL
13h 34m
2 stops
$783Air Canada
Mon, Nov 9 - Wed, Nov 11
Air Canada Logo
9:15 am - 8:40 am
PHL
-
MAN
18h 25m
1 stop
Air Canada Logo
6:10 am - 2:44 pm
MAN
-
PHL
13h 34m
2 stops
$784Air Canada
Mon, Nov 9 - Wed, Nov 11
British Airways Logo
6:45 pm - 10:30 am
PHL
-
GLA
10h 45m
1 stop
British Airways Logo
9:30 am - 4:40 pm
GLA
-
PHL
12h 10m
1 stop
$829British Airways
Wed, Aug 19 - Wed, Aug 26
British Airways Logo
6:45 pm - 10:30 am
PHL
-
GLA
10h 45m
1 stop
British Airways Logo
9:30 am - 4:40 pm
GLA
-
PHL
12h 10m
1 stop
$830British Airways
Wed, Aug 19 - Wed, Aug 26
American Airlines Logo
6:50 pm - 10:10 am
PHL
-
LHR
10h 20m
1 stop
American Airlines Logo
8:15 am - 4:10 pm
LHR
-
PHL
12h 55m
1 stop
$894American Airlines
Mon, Aug 17 - Fri, Aug 21
American Airlines Logo
10:20 pm - 10:20 am
PHL
-
LHR
7h 00mnonstop
American Airlines Logo
8:15 am - 4:10 pm
LHR
-
PHL
12h 55m
1 stop
$895American Airlines
Mon, Aug 17 - Fri, Aug 21
Aer Lingus Logo
8:25 pm - 12:40 pm
PHL
-
LHR
11h 15m
1 stop
Aer Lingus Logo
1:25 pm - 6:55 pm
LHR
-
PHL
10h 30m
1 stop
$896Aer Lingus
Mon, Oct 5 - Tue, Oct 13
Iberia Logo
4:15 pm - 9:10 am
PHL
-
LCY
11h 55m
1 stop
Iberia Logo
9:35 am - 5:50 pm
LCY
-
PHL
13h 15m
1 stop
$980Iberia
Wed, Sep 30 - Wed, Oct 7
Iberia Logo
8:30 pm - 3:15 pm
PHL
-
LCY
13h 45m
1 stop
Iberia Logo
9:35 am - 5:50 pm
LCY
-
PHL
13h 15m
1 stop
$996Iberia
Wed, Oct 7 - Tue, Oct 13

Aer Lingus flights from Philadelphia to United Kingdom

Our best Aer Lingus deals on Philadelphia to United Kingdom flight tickets
Aer Lingus
Oct 5
PHL8:25 pmPhiladelphia
11h 15m
1 stop
LHR12:40 pmLondon Heathrow
Oct 13
LHR1:25 pmLondon Heathrow
10h 30m
1 stop
PHL6:55 pmPhiladelphia
$896
Aer Lingus
Oct 1
PHL8:25 pmPhiladelphia
9h 45m
1 stop
LHR11:10 amLondon Heathrow
Oct 13
LHR9:50 amLondon Heathrow
14h 05m
1 stop
PHL6:55 pmPhiladelphia
$934
Aer Lingus
Aug 27
PHL8:25 pmPhiladelphia
9h 45m
1 stop
LHR11:10 amLondon Heathrow
Sep 2
LHR1:25 pmLondon Heathrow
10h 30m
1 stop
PHL6:55 pmPhiladelphia
$935

British Airways flights from Philadelphia to United Kingdom

Our best British Airways deals on Philadelphia to United Kingdom flight tickets
British Airways
Aug 19
PHL6:45 pmPhiladelphia
10h 45m
1 stop
GLA10:30 amGlasgow Intl
Aug 26
GLA9:30 amGlasgow Intl
12h 10m
1 stop
PHL4:40 pmPhiladelphia
$829
British Airways
Aug 19
PHL6:45 pmPhiladelphia
10h 45m
1 stop
GLA10:30 amGlasgow Intl
Aug 26
GLA9:30 amGlasgow Intl
12h 10m
1 stop
PHL4:40 pmPhiladelphia
$830
British Airways
Aug 19
PHL6:45 pmPhiladelphia
10h 45m
1 stop
GLA10:30 amGlasgow Intl
Aug 26
GLA9:30 amGlasgow Intl
12h 10m
1 stop
PHL4:40 pmPhiladelphia
$831

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 May 22, 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

Sun 8/16

8:25 pm-9:00 pm

1 stop19h 35m

Edinburgh Turnhouse

Tue 9/1

7:30 pm-11:43 pm

2 stops33h 13m

$771

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 11/9

4:35 pm-8:40 am

1 stop11h 05m

Manchester

Wed 11/11

6:10 am-2:44 pm

2 stops13h 34m

$783

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Mon 11/9

9:15 am-8:40 am

1 stop18h 25m

Manchester

Wed 11/11

6:10 am-2:44 pm

2 stops13h 34m

$784

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 8/19

6:45 pm-10:30 am

1 stop10h 45m

Glasgow Intl

Wed 8/26

9:30 am-4:40 pm

1 stop12h 10m

$829

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 8/19

6:45 pm-10:30 am

1 stop10h 45m

Glasgow Intl

Wed 8/26

9:30 am-4:40 pm

1 stop12h 10m

$830

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 8/17

6:50 pm-10:10 am

1 stop10h 20m

London Heathrow

Fri 8/21

8:15 am-4:10 pm

1 stop12h 55m

$894
Quickest round-trip

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 8/17

10:20 pm-10:20 am

Nonstop7h 00m

London Heathrow

Fri 8/21

8:15 am-4:10 pm

1 stop12h 55m

$895

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 10/5

8:25 pm-12:40 pm

1 stop11h 15m

London Heathrow

Tue 10/13

1:25 pm-6:55 pm

1 stop10h 30m

$896

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Wed 9/30

4:15 pm-9:10 am

1 stop11h 55m

London City

Wed 10/7

9:35 am-5:50 pm

1 stop13h 15m

$980

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Wed 10/7

8:30 pm-3:15 pm

1 stop13h 45m

London City

Tue 10/13

9:35 am-5:50 pm

1 stop13h 15m

$996

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 $789. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,060.

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 $840. 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 $963. 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 $862 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 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

$500

Fastest flight time

6h 30m

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 $500. The best round-trip flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is $1,071.
The fastest flight from Philadelphia to United Kingdom takes 6h 30m
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
JetBluePriceFrom $250Free CancellationRating
7.2
2,981 reviews
Search JetBlue flights
Aer LingusPriceFrom $479Free CancellationRating
7.3
1,578 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $500Free CancellationRating
6.7
7,995 reviews
Search British Airways flights
FinnairPriceFrom $513Free CancellationRating
7.7
1,398 reviews
Search Finnair flights
American AirlinesPriceFrom $515Free CancellationRating
7.1
11,646 reviews
Search American Airlines flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,752 reviews
Search United Airlines flights
IberiaPriceFrom $567Free CancellationRating
7.0
3,219 reviews
Search Iberia flights
LufthansaPriceFrom $622Free CancellationRating
6.8
8,019 reviews
Search Lufthansa 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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Find better results for your trip to the United Kingdom

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Popular flights according to clicks in the last 7 days on momondo
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