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Flights to Philadelphia

£279 Cheap flights to Philadelphia

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Philadelphia departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United Kingdom to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:30 - 20:01
EDI
-
PHL
13h 31m
1 stop
JetBlue Logo
09:25 - 10:00
PHL
-
EDI
19h 35m
1 stop
£504JetBlue
Tue, 11 Aug - Tue, 18 Aug
JetBlue Logo
11:30 - 08:30
EDI
-
PHL
26h 00m
1 stop
JetBlue Logo
09:20 - 10:00
PHL
-
EDI
19h 40m
1 stop
£510JetBlue
Mon, 13 Jul - Mon, 20 Jul
JetBlue Logo
11:30 - 08:08
EDI
-
PHL
25h 38m
1 stop
JetBlue Logo
09:12 - 10:00
PHL
-
EDI
19h 48m
1 stop
£522JetBlue
Fri, 7 Aug - Sun, 9 Aug
Finnair Logo
09:15 - 12:10
LHR
-
PHL
7h 55mdirect
Finnair Logo
13:51 - 06:20
PHL
-
LHR
11h 29m
1 stop
£617Finnair
Mon, 14 Sep - Sun, 27 Sep
Finnair Logo
16:45 - 14:41
LHR
-
PHL
26h 56m
1 stop
Finnair Logo
21:17 - 07:00
PHL
-
LHR
28h 43m
1 stop
£618Finnair
Mon, 23 Nov - Sun, 29 Nov
British Airways Logo
13:45 - 16:40
LHR
-
PHL
7h 55mdirect
British Airways Logo
18:45 - 06:50
PHL
-
LHR
7h 05mdirect
£620British Airways
Tue, 13 Oct - Fri, 23 Oct
American Airlines Logo
09:15 - 12:15
LHR
-
PHL
8h 00mdirect
American Airlines Logo
19:35 - 07:50
PHL
-
LHR
7h 15mdirect
£623American Airlines
Mon, 13 Jul - Mon, 20 Jul
British Airways Logo
08:40 - 15:35
LCY
-
PHL
11h 55m
1 stop
British Airways Logo
21:10 - 18:35
PHL
-
LCY
16h 25m
1 stop
£626British Airways
Wed, 25 Nov - Sun, 29 Nov
Aer Lingus Logo
08:35 - 18:55
GLA
-
PHL
15h 20m
1 stop
Aer Lingus Logo
20:25 - 20:40
PHL
-
GLA
19h 15m
1 stop
£640Aer Lingus
Wed, 23 Sep - Fri, 2 Oct
Aer Lingus Logo
12:00 - 18:55
GLA
-
PHL
11h 55m
1 stop
Aer Lingus Logo
20:25 - 11:30
PHL
-
GLA
10h 05m
1 stop
£658Aer Lingus
Tue, 25 Aug - Thu, 10 Sep

momondo Fare Finder

 
Locate flights to Philadelphia that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 30 June 2026.
Use the filters below to find and compare flights to Philadelphia that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Tue 11/8

11:30-20:01

1 stop13h 31m

Philadelphia

Tue 18/8

09:25-10:00

1 stop19h 35m

£504

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Mon 13/7

11:30-08:30

1 stop26h 00m

Philadelphia

Mon 20/7

09:20-10:00

1 stop19h 40m

£510

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Fri 7/8

11:30-08:08

1 stop25h 38m

Philadelphia

Sun 9/8

09:12-10:00

1 stop19h 48m

£522

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 14/9

09:15-12:10

Nonstop7h 55m

Philadelphia

Sun 27/9

13:51-06:20

1 stop11h 29m

£617

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 23/11

16:45-14:41

1 stop26h 56m

Philadelphia

Sun 29/11

21:17-07:00

1 stop28h 43m

£618
Fastest return journey

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 13/10

13:45-16:40

Nonstop7h 55m

Philadelphia

Fri 23/10

18:45-06:50

Nonstop7h 05m

£620

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/7

09:15-12:15

Nonstop8h 00m

Philadelphia

Mon 20/7

19:35-07:50

Nonstop7h 15m

£623

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 25/11

08:40-15:35

1 stop11h 55m

Philadelphia

Sun 29/11

21:10-18:35

1 stop16h 25m

£626

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 23/9

08:35-18:55

1 stop15h 20m

Philadelphia

Fri 2/10

20:25-20:40

1 stop19h 15m

£640

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 25/8

12:00-18:55

1 stop11h 55m

Philadelphia

Thu 10/9

20:25-11:30

1 stop10h 05m

£658

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Philadelphia from

Philadelphia flights insights and trends

Explore insights for your Philadelphia flight to craft the best travel plan

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel during the month of September, then book flights to Philadelphia from United Kingdom during January instead. Flights to Philadelphia in January, while not as cheap as those in September, still average around £550.

What is the absolute cheapest flight to Philadelphia?

£60 is the cheapest deal found on momondo in the last two weeks for a flight to Philadelphia. This flight is from Orlando and is 85% cheaper than most flights to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

What is the cheapest day to depart on your flight to Philadelphia?

Our data shows that Tuesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £622. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £699.

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

The cheapest time of day to fly to Philadelphia is in the morning when flights can be purchased for as low as £654. At midday is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £667 per ticket.

How far in advance should I book a flight to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £639 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from United Kingdom for as low as £569 on momondo.

Cheapest flights to Philadelphia

Find the cheapest flights to Philadelphia from your nearest city or airport
Find flights from London Heathrow Airport to Philadelphia
CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORTSeptember14% cheaperFlying from London Heathrow Airport to Philadelphia costs on average just £554 in September
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORTJuly20% more expensiveIt costs about £773 for flights to Philadelphia from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORTAugust144% more users visitedMore momondo users searched in flights to Philadelphia from London Heathrow Airport in August than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

£279

Best Round-Trip Price

£504

Fastest flight time

12h 15m

Popular in

July
The best one-way flight price to Philadelphia from United Kingdom in the last 5 days is £279 (Edinburgh Turnhouse to Philadelphia).
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The best round-trip flight price to Philadelphia from United Kingdom in the last 5 days is £504 (Edinburgh Turnhouse to Philadelphia).
Search Deals
The fastest flight to Philadelphia from United Kingdom takes 12h 15m (London City to Philadelphia).
Search Deals
July has the highest demand for flights to Philadelphia, with a 5% price increase on average.
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Frequently asked questions about flying to Philadelphia

How far in advance should I book a flight to Philadelphia?

Most flyers found that booking tickets 20 days in advance of their planned departure date is the best time to get cheap flights to Philadelphia. During this timeframe, flight prices are around £632. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from United Kingdom for as low as £476 on momondo.

Is there an alternative airport near Philadelphia?

Finding an alternative and possibly cheaper destination airport near Philadelphia is possible. If you are planning a flight to Philadelphia, consider booking flights to Philadelphia Airport (7 mi from Philadelphia city centre), Trenton-Mercer Airport (29 mi from Philadelphia city centre), Greater Wilmington Airport (31 mi from Philadelphia city centre), Atlantic City Airport (46 mi from Philadelphia city centre) or Newark Airport (73 mi from Philadelphia city centre).

Is there a cheaper alternative to flying into Philadelphia?

With an average price of £73 per person, Atlantic City Airport is the cheapest airport to fly into when planning your trip to Philadelphia. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

When did momondo last update prices for flights to Philadelphia Airport?

Prices for flights to Philadelphia Airport are updated daily.

How many operators does momondo search for flights to Philadelphia Airport?

The number of operators available for flights to Philadelphia Airport is 11 as of June 2026.

How old do you have to be to fly to Philadelphia Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Bridgeport
Vineland
Newark
King of Prussia
Reading
Rehoboth Beach
Dover
Essington
Ephrata
Cherry Hill
West Chester
Dewey Beach

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Philadelphia. Millions of users trust and use momondo every year so you are in good company.

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

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

How can momondo help me find flights to Philadelphia?

momondo provides multiple filters to help you find the best flight to Philadelphia. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Philadelphia trip

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