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Cheap flights from Philadelphia to the United Kingdom from $188

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 2/6. 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.
British Airways Logo
6:35 pm - 11:50 am
PHL
-
INV
12h 15m1 stop
British Airways Logo
7:45 pm - 4:15 pm
INV
-
PHL
25h 30m1 stop
$476British Airways
Mon, Feb 9 - Mon, Feb 16
British Airways Logo
8:10 am - 11:50 am
PHL
-
INV
22h 40m2 stops
British Airways Logo
7:45 pm - 2:00 pm
INV
-
PHL
23h 15m2 stops
$478British Airways
Mon, Feb 9 - Mon, Feb 16
British Airways Logo
6:35 pm - 11:50 am
PHL
-
INV
12h 15m1 stop
British Airways Logo
7:45 pm - 2:00 pm
INV
-
PHL
23h 15m2 stops
$480British Airways
Mon, Feb 9 - Mon, Feb 16
American Airlines Logo
7:40 pm - 2:55 pm
PHL
-
INV
14h 15m1 stop
American Airlines Logo
7:20 am - 3:30 pm
INV
-
PHL
13h 10m1 stop
$498American Airlines
Tue, Apr 28 - Thu, May 7
American Airlines Logo
4:20 pm - 2:55 pm
PHL
-
INV
17h 35m2 stops
American Airlines Logo
7:35 am - 3:30 pm
INV
-
PHL
12h 55m1 stop
$502American Airlines
Tue, Apr 14 - Wed, Apr 22
Lufthansa Logo
4:35 pm - 4:55 pm
PHL
-
MAN
20h 20m2 stops
Lufthansa Logo
6:00 am - 5:05 pm
MAN
-
PHL
15h 05m1 stop
$612Lufthansa
Wed, Mar 11 - Thu, Mar 19
JetBlue Logo
1:30 pm - 6:55 am
PHL
-
LHR
12h 25m1 stop
JetBlue Logo
9:20 am - 10:07 pm
LHR
-
PHL
17h 47m1 stop
$630JetBlue
Mon, Feb 9 - Mon, Feb 16
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
$635JetBlue
Sun, Jan 18 - Tue, Jan 27
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
$733Lufthansa
Sun, Apr 5 - Wed, May 6
Iberia Logo
1:49 pm - 8:50 am
PHL
-
LCY
14h 01m2 stops
Iberia Logo
7:50 am - 3:35 pm
LCY
-
PHL
12h 45m1 stop
$773Iberia
Mon, Feb 9 - Fri, Feb 27

Scandinavian Airlines flights from Philadelphia to United Kingdom

Our best Scandinavian Airlines deals on Philadelphia to United Kingdom flight tickets
Scandinavian Airlines
Feb 26
PHL6:00 amPhiladelphia
22h 20m
2 stops
LHR9:20 amLondon Heathrow
Mar 2
LHR6:40 amLondon Heathrow
19h 33m
2 stops
PHL9:13 pmPhiladelphia
$665
Find similar
Scandinavian Airlines
Jan 25
PHL6:02 amPhiladelphia
22h 18m
2 stops
LHR9:20 amLondon Heathrow
Feb 1
LHR6:40 pmLondon Heathrow
31h 36m
2 stops
PHL9:16 pmPhiladelphia
$685
Find similar
Scandinavian Airlines
Feb 5
PHL11:22 amPhiladelphia
16h 58m
2 stops
LHR9:20 amLondon Heathrow
Feb 8
LHR7:30 pmLondon Heathrow
30h 46m
2 stops
PHL9:16 pmPhiladelphia
$686
Find similar

JetBlue flights from Philadelphia to United Kingdom

Our best JetBlue deals on Philadelphia to United Kingdom flight tickets
JetBlue
Feb 9
PHL1:30 pmPhiladelphia
12h 25m
1 stop
LHR6:55 amLondon Heathrow
Feb 16
LHR9:20 amLondon Heathrow
17h 47m
1 stop
PHL10:07 pmPhiladelphia
$630
Find similar
JetBlue
Jan 18
PHL8:40 amPhiladelphia
17h 15m
1 stop
LHR6:55 amLondon Heathrow
Jan 27
LHR9:20 amLondon Heathrow
14h 03m
1 stop
PHL6:23 pmPhiladelphia
$635
Find similar
JetBlue
Feb 6
PHL8:40 amPhiladelphia
17h 15m
1 stop
LHR6:55 amLondon Heathrow
Feb 14
LHR9:20 amLondon Heathrow
17h 47m
1 stop
PHL10:07 pmPhiladelphia
$639
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 27, 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

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Mon 2/9

6:35 pm-11:50 am

1 stop12h 15m

Inverness

Mon 2/16

7:45 pm-4:15 pm

1 stop25h 30m

$476

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Mon 2/9

8:10 am-11:50 am

2 stops22h 40m

Inverness

Mon 2/16

7:45 pm-2:00 pm

2 stops23h 15m

$478

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Mon 2/9

6:35 pm-11:50 am

1 stop12h 15m

Inverness

Mon 2/16

7:45 pm-2:00 pm

2 stops23h 15m

$480

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Tue 4/28

7:40 pm-2:55 pm

1 stop14h 15m

Inverness

Thu 5/7

7:20 am-3:30 pm

1 stop13h 10m

$498

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Tue 4/14

4:20 pm-2:55 pm

2 stops17h 35m

Inverness

Wed 4/22

7:35 am-3:30 pm

1 stop12h 55m

$502

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 3/11

4:35 pm-4:55 pm

2 stops20h 20m

Manchester

Thu 3/19

6:00 am-5:05 pm

1 stop15h 05m

$612

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 2/9

1:30 pm-6:55 am

1 stop12h 25m

London Heathrow

Mon 2/16

9:20 am-10:07 pm

1 stop17h 47m

$630

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 1/18

8:40 am-6:55 am

1 stop17h 15m

London Heathrow

Tue 1/27

9:20 am-6:23 pm

1 stop14h 03m

$635

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

$733

PhiladelphiaLondon

PHL - LCY

PHLLCY

Philadelphia

Mon 2/9

1:49 pm-8:50 am

2 stops14h 01m

London City

Fri 2/27

7:50 am-3:35 pm

1 stop12h 45m

$773

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 $647. 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 $663.

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 $772. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $979.

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 $875. 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 $827 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

$411

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 $411. The best round-trip flight deal from Philadelphia to United Kingdom found on momondo in the last 72 hours is $704.
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
British AirwaysPriceFrom $508Free CancellationRating
6.7
7,614 reviews
Search British Airways flights
American AirlinesPriceFrom $509Free CancellationRating
7.2
11,069 reviews
Search American Airlines flights
FinnairPriceFrom $515Free CancellationRating
7.6
1,339 reviews
Search Finnair flights
Aer LingusPriceFrom $522Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
Air CanadaPriceFrom $556Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
JetBluePriceFrom $580Free CancellationRating
7.2
2,901 reviews
Search JetBlue flights
IberiaPriceFrom $596Free CancellationRating
7.0
3,059 reviews
Search Iberia flights
LufthansaPriceFrom $622Free CancellationRating
6.8
7,656 reviews
Search Lufthansa flights
DeltaPriceFrom $766Free CancellationRating
7.9
8,021 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 $343
Flights to Manchesterfrom $388
Flights to Edinburghfrom $389
Flights to Birminghamfrom $389
Flights to Glasgowfrom $411
Flights to Newcastle upon Tynefrom $462
Flights to Belfastfrom $455
Flights to Bristolfrom $450
Flights to Invernessfrom $401
Flights to Liverpoolfrom $444
Flights to Aberdeenfrom $496
Flights to Leedsfrom $459