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Flights to Philadelphia

£289 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 15/11. 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.
Multiple Airlines Logo
13:05 - 18:55MAN  Manchester-PHL Philadelphia
10h 50m1 stop Dublin
Multiple Airlines Logo
18:30 - 08:25PHL  Philadelphia-MAN Manchester
9h 55m1 stop Dublin
£516Multiple Airlines
Tue, 20 Oct - Mon, 26 Oct
Multiple Airlines Logo
07:45 - 18:55MAN  Manchester-PHL Philadelphia
16h 10m1 stop Dublin
Multiple Airlines Logo
20:25 - 21:15PHL  Philadelphia-MAN Manchester
19h 50m1 stop Dublin
£521Multiple Airlines
Mon, 21 Sep - Mon, 28 Sep
Aer Lingus Logo
08:35 - 18:55EDI  Edinburgh Turnhouse-PHL Philadelphia
15h 20m1 stop Dublin
Aer Lingus Logo
20:25 - 19:05PHL  Philadelphia-EDI Edinburgh Turnhouse
17h 40m1 stop Dublin
£554Aer Lingus
Mon, 28 Sep - Mon, 5 Oct
Aer Lingus Logo
08:35 - 18:55GLA  Glasgow Intl-PHL Philadelphia
15h 20m1 stop Dublin
Aer Lingus Logo
20:25 - 12:50PHL  Philadelphia-GLA Glasgow Intl
11h 25m1 stop Dublin
£560Aer Lingus
Thu, 10 Sep - Wed, 23 Sep
British Airways Logo
06:20 - 16:15EDI  Edinburgh Turnhouse-PHL Philadelphia
14h 55m1 stop London Heathrow
British Airways Logo
18:35 - 10:10PHL  Philadelphia-EDI Edinburgh Turnhouse
10h 35m1 stop London Heathrow
£579British Airways
Sun, 22 Nov - Sun, 29 Nov
United Airlines Logo
09:30 - 16:05LHR  London Heathrow-PHL Philadelphia
11h 35m1 stop Frankfurt am Main
United Airlines Logo
06:15 - 05:55PHL  Philadelphia-LHR London Heathrow
18h 40m2 stops Washington, D.C. Dulles Intl Newark
£581United Airlines
Wed, 14 Oct - Thu, 22 Oct
United Airlines Logo
07:25 - 18:42LHR  London Heathrow-PHL Philadelphia
16h 17m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
United Airlines Logo
19:40 - 07:10PHL  Philadelphia-LHR London Heathrow
30h 30m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl
£583United Airlines
Tue, 13 Oct - Tue, 3 Nov
Iberia Logo
07:50 - 17:25LHR  London Heathrow-PHL Philadelphia
14h 35m1 stop Madrid Barajas
Iberia Logo
13:51 - 06:15PHL  Philadelphia-LHR London Heathrow
11h 24m1 stop Toronto Pearson Intl
£585Iberia
Tue, 13 Oct - Wed, 21 Oct
Iberia Logo
09:15 - 12:10LHR  London Heathrow-PHL Philadelphia
7h 55mdirect
Iberia Logo
13:39 - 09:40PHL  Philadelphia-LHR London Heathrow
15h 01m1 stop Montreal Pierre Elliott Trudeau Intl
£589Iberia
Mon, 14 Sep - Tue, 22 Sep
British Airways Logo
11:05 - 15:05EDI  Edinburgh Turnhouse-PHL Philadelphia
9h 00mdirect
British Airways Logo
18:35 - 13:25PHL  Philadelphia-EDI Edinburgh Turnhouse
13h 50m1 stop London Heathrow
£698British Airways
Mon, 23 Nov - Sun, 29 Nov

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 15 August 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
Fastest return journey

ManchesterPhiladelphia

MAN Manchester - PHL Philadelphia

MANPHL

Manchester

Tue 20/10

13:05-18:55

1 stop10h 50m

Philadelphia

Mon 26/10

18:30-08:25

1 stop9h 55m

£516

ManchesterPhiladelphia

MAN Manchester - PHL Philadelphia

MANPHL

Manchester

Mon 21/9

07:45-18:55

1 stop16h 10m

Philadelphia

Mon 28/9

20:25-21:15

1 stop19h 50m

£521

EdinburghPhiladelphia

EDI Edinburgh Turnhouse - PHL Philadelphia

EDIPHL

Edinburgh Turnhouse

Mon 28/9

08:35-18:55

1 stop15h 20m

Philadelphia

Mon 5/10

20:25-19:05

1 stop17h 40m

£554

GlasgowPhiladelphia

GLA Glasgow Intl - PHL Philadelphia

GLAPHL

Glasgow Intl

Thu 10/9

08:35-18:55

1 stop15h 20m

Philadelphia

Wed 23/9

20:25-12:50

1 stop11h 25m

£560

EdinburghPhiladelphia

EDI Edinburgh Turnhouse - PHL Philadelphia

EDIPHL

Edinburgh Turnhouse

Sun 22/11

06:20-16:15

1 stop14h 55m

Philadelphia

Sun 29/11

18:35-10:10

1 stop10h 35m

£579

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 14/10

09:30-16:05

1 stop11h 35m

Philadelphia

Thu 22/10

06:15-05:55

2 stops18h 40m

£581

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Tue 13/10

07:25-18:42

2 stops16h 17m

Philadelphia

Tue 3/11

19:40-07:10

2 stops30h 30m

£583

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Tue 13/10

07:50-17:25

1 stop14h 35m

Philadelphia

Wed 21/10

13:51-06:15

1 stop11h 24m

£585

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 14/9

09:15-12:10

Nonstop7h 55m

Philadelphia

Tue 22/9

13:39-09:40

1 stop15h 01m

£589

EdinburghPhiladelphia

EDI Edinburgh Turnhouse - PHL Philadelphia

EDIPHL

Edinburgh Turnhouse

Mon 23/11

11:05-15:05

Nonstop9h 00m

Philadelphia

Sun 29/11

18:35-13:25

1 stop13h 50m

£698

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 January, then book flights to Philadelphia from United Kingdom during September instead. Flights to Philadelphia in September, while not as cheap as those in January, still average around £547.

What is the absolute cheapest flight to Philadelphia?

£88 is the cheapest deal found on momondo in the last two weeks for a flight to Philadelphia. This flight is from Orlando and is 78% 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 £628. 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 £691.

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 £662. At midday is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £665 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 £651 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 £575 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 AIRPORTMarch15% cheaperFlying from London Heathrow Airport to Philadelphia costs on average just £554 in March
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORTAugust26% more expensiveIt costs about £827 for flights to Philadelphia from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORTJuly181% more users visitedMore momondo users searched in flights to Philadelphia from London Heathrow Airport in July than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

£260

Best Round-Trip Price

£516

Fastest flight time

12h 15m

Popular in

April
The best one-way flight price to Philadelphia from United Kingdom in the last 5 days is £260 (Edinburgh Turnhouse to Philadelphia).
Search Deals
The best return flight price to Philadelphia from United Kingdom in the last 5 days is £516 (Manchester to Philadelphia).
Search Deals
The fastest flight to Philadelphia from United Kingdom takes 12h 15m (Manchester to Philadelphia).
Search Deals
April has the highest demand for flights to Philadelphia, with a 7% price increase on average.
Search Deals

Frequently asked questions about flying to Philadelphia

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

Most flyers found that booking tickets 58 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 £647. 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 £492 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 £71 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 10 as of August 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
Reading
Rehoboth Beach
Dover
Essington
Ephrata
Cherry Hill
Dewey Beach
Wildwood
West Chester

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.

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