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Cheap flights from Philadelphia to the United Kingdom from $195

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 2/1. 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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Find the cheapest flights from Philadelphia to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
7:35 pm - 10:45 am
PHL
-
GLA
11h 10m1 stop
British Airways Logo
6:25 am - 5:15 pm
GLA
-
PHL
14h 50m1 stop
$588British Airways
Wed, Mar 18 - Tue, Mar 24
Multiple Airlines Logo
3:30 pm - 10:20 am
PHL
-
MAN
13h 50m2 stops
Multiple Airlines Logo
6:10 am - 2:47 pm
MAN
-
PHL
13h 37m2 stops
$603Multiple Airlines
Sun, Jan 18 - Fri, Jan 30
British Airways Logo
9:31 pm - 10:30 pm
PHL
-
GLA
19h 59m2 stops
British Airways Logo
8:25 pm - 4:15 pm
GLA
-
PHL
24h 50m1 stop
$603British Airways
Tue, Jan 27 - Mon, Feb 2
JetBlue Logo
1:30 pm - 6:55 am
PHL
-
LHR
12h 25m1 stop
JetBlue Logo
9:20 am - 6:23 pm
LHR
-
PHL
14h 03m1 stop
$613JetBlue
Mon, Jan 12 - Tue, Jan 20
JetBlue Logo
8:40 am - 6:55 am
PHL
-
LHR
17h 15m1 stop
JetBlue Logo
9:20 am - 6:23 pm
LHR
-
PHL
14h 03m1 stop
$614JetBlue
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
7:40 pm - 1:15 pm
PHL
-
GLA
12h 35m1 stop
American Airlines Logo
5:55 am - 12:15 pm
GLA
-
PHL
11h 20m1 stop
$622American Airlines
Tue, Apr 14 - Tue, Apr 21
Lufthansa Logo
5:35 pm - 5:55 pm
PHL
-
LCY
19h 20m1 stop
Lufthansa Logo
9:15 am - 4:00 pm
LCY
-
PHL
11h 45m1 stop
$731Lufthansa
Sun, Apr 5 - Wed, May 6
Lufthansa Logo
5:35 pm - 5:55 pm
PHL
-
LCY
19h 20m1 stop
Lufthansa Logo
9:15 am - 4:00 pm
LCY
-
PHL
11h 45m1 stop
$777Lufthansa
Thu, Apr 16 - Fri, Apr 24
Aer Lingus Logo
8:30 pm - 7:30 pm
PHL
-
SOU
18h 00m1 stop
Aer Lingus Logo
9:10 am - 7:00 pm
SOU
-
PHL
14h 50m1 stop
$974Aer Lingus
Wed, May 6 - Thu, May 14
Aer Lingus Logo
10:00 am - 7:30 pm
PHL
-
SOU
28h 30m2 stops
Aer Lingus Logo
9:10 am - 7:00 pm
SOU
-
PHL
14h 50m1 stop
$978Aer Lingus
Wed, May 6 - Thu, May 14

Scandinavian Airlines flights from Philadelphia to United Kingdom

Our best Scandinavian Airlines deals on Philadelphia to United Kingdom flight tickets
Scandinavian Airlines
Jan 13
PHL11:30 amPhiladelphia
16h 50m
2 stops
LHR9:20 amLondon Heathrow
Jan 20
LHR6:40 amLondon Heathrow
19h 36m
2 stops
PHL9:16 pmPhiladelphia
$658
Find similar
Scandinavian Airlines
Jan 27
PHL11:22 amPhiladelphia
23h 38m
2 stops
LHR4:00 pmLondon Heathrow
Feb 2
LHR6:40 amLondon Heathrow
19h 36m
2 stops
PHL9:16 pmPhiladelphia
$659
Find similar
Scandinavian Airlines
Jan 27
PHL6:02 amPhiladelphia
22h 18m
2 stops
LHR9:20 amLondon Heathrow
Feb 9
LHR7:30 pmLondon Heathrow
30h 46m
2 stops
PHL9:16 pmPhiladelphia
$684
Find similar

Lufthansa flights from Philadelphia to United Kingdom

Our best Lufthansa deals on Philadelphia to United Kingdom flight tickets
Lufthansa
Mar 11
PHL4:35 pmPhiladelphia
11h 55m
1 stop
LHR8:30 amLondon Heathrow
Mar 25
LHR6:30 amLondon Heathrow
20h 16m
2 stops
PHL10:46 pmPhiladelphia
$687
Find similar
Lufthansa
May 13
PHL5:35 pmPhiladelphia
19h 05m
1 stop
LHR5:40 pmLondon Heathrow
May 22
LHR9:30 amLondon Heathrow
11h 30m
1 stop
PHL4:00 pmPhiladelphia
$708
Find similar
Lufthansa
Apr 5
PHL5:35 pmPhiladelphia
19h 20m
1 stop
LCY5:55 pmLondon City
May 6
LCY9:15 amLondon City
11h 45m
1 stop
PHL4:00 pmPhiladelphia
$731
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 December 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

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Wed 3/18

7:35 pm-10:45 am

1 stop11h 10m

Glasgow Intl

Tue 3/24

6:25 am-5:15 pm

1 stop14h 50m

$588

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Sun 1/18

3:30 pm-10:20 am

2 stops13h 50m

Manchester

Fri 1/30

6:10 am-2:47 pm

2 stops13h 37m

$603

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 1/27

9:31 pm-10:30 pm

2 stops19h 59m

Glasgow Intl

Mon 2/2

8:25 pm-4:15 pm

1 stop24h 50m

$603

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 1/12

1:30 pm-6:55 am

1 stop12h 25m

London Heathrow

Tue 1/20

9:20 am-6:23 pm

1 stop14h 03m

$613

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 1/13

8:40 am-6:55 am

1 stop17h 15m

London Heathrow

Tue 1/20

9:20 am-6:23 pm

1 stop14h 03m

$614

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Tue 4/14

7:40 pm-1:15 pm

1 stop12h 35m

Glasgow Intl

Tue 4/21

5:55 am-12:15 pm

1 stop11h 20m

$622

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Sun 4/5

5:35 pm-5:55 pm

1 stop19h 20m

London City

Wed 5/6

9:15 am-4:00 pm

1 stop11h 45m

$731

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Thu 4/16

5:35 pm-5:55 pm

1 stop19h 20m

London City

Fri 4/24

9:15 am-4:00 pm

1 stop11h 45m

$777

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 5/6

8:30 pm-7:30 pm

1 stop18h 00m

Southampton Eastleigh

Thu 5/14

9:10 am-7:00 pm

1 stop14h 50m

$974

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 5/6

10:00 am-7:30 pm

2 stops28h 30m

Southampton Eastleigh

Thu 5/14

9:10 am-7:00 pm

1 stop14h 50m

$978

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 $646. 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 $660.

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 $773. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $980.

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 evening, with an average ticket price of $872. 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 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 $822 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 $682 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 47% 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

$451

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 $451. The best round-trip flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is $707.
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 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
2,895 reviews
Search JetBlue flights
American AirlinesPriceFrom $508Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
British AirwaysPriceFrom $508Free CancellationRating
6.7
7,586 reviews
Search British Airways flights
FinnairPriceFrom $514Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
Aer LingusPriceFrom $522Free CancellationRating
7.2
1,399 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
IberiaPriceFrom $602Free CancellationRating
7.0
3,053 reviews
Search Iberia flights
LufthansaPriceFrom $622Free CancellationRating
6.8
7,637 reviews
Search Lufthansa flights
DeltaPriceFrom $784Free CancellationRating
7.9
8,008 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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Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $345
Flights to Manchesterfrom $363
Flights to Edinburghfrom $383
Flights to Birminghamfrom $393
Flights to Glasgowfrom $390
Flights to Newcastle upon Tynefrom $418
Flights to Belfastfrom $514
Flights to Bristolfrom $428
Flights to Invernessfrom $401
Flights to Liverpoolfrom $438
Flights to Aberdeenfrom $463
Flights to Leedsfrom $437