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Cheap flights from London Luton Airport to Philadelphia from £347

LTN — PHL
26 Sep — 3 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Philadelphia

Tue 6/1009:40 -
1 stop14h 15m
Tue 13/1010:45 -
2 stops17h 30m
Deal found 22/8£590
Wed 7/1012:45 -
3 stops32h 20m
Wed 14/1015:25 -
2 stops15h 55m
Deal found 23/8£595
Sat 10/1009:00 -
2 stops14h 28m
Sat 17/1020:25 -
1 stop14h 40m
Deal found 26/8£598
Fri 9/1006:20 -
1 stop17h 35m
Fri 16/1010:45 -
2 stops16h 40m
Deal found 25/8£599
Thu 8/1013:00 -
2 stops14h 43m
Thu 15/1020:25 -
1 stop11h 00m
Deal found 24/8£600
Thu 15/1013:00 -
2 stops14h 43m
Sun 25/1018:40 -
1 stop10h 30m
Deal found 24/8£607
Fri 23/1012:50 -
1 stop11h 05m
Sat 31/1018:40 -
1 stop9h 25m
Deal found 24/8£617
Fri 18/912:50 -
1 stop11h 05m
Mon 21/920:25 -
1 stop11h 20m
Deal found 22/8£619

Find flight deals from Luton to Philadelphia

Round-trip from

£583

One-way from

£347

Popular in

August

Cheapest in

January

Average price

£823
27/9-3/10
  • 27/9-3/10
  • 2 total stops
  • 29h 35m total
  • London to Philadelphia
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16/11
  • 16/11
  • 3 total stops
  • 30h 40m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£56 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Luton Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Tue 6/10

09:40-18:55

1 stop14h 15m

Philadelphia

Tue 13/10

10:45-09:15

2 stops17h 30m

£590

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Mon 21/9

08:15-17:48

2 stops14h 33m

Philadelphia

Mon 28/9

20:25-12:45

1 stop11h 20m

£599
Fastest return journey

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Fri 18/9

12:50-18:55

1 stop11h 05m

Philadelphia

Mon 21/9

20:25-12:45

1 stop11h 20m

£619

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 8/10

13:00-16:05

3 stops32h 05m

Philadelphia

Thu 15/10

17:40-23:25

3 stops24h 45m

£659

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Mon 14/9

19:55-14:47

3 stops23h 52m

Philadelphia

Mon 21/9

17:40-19:15

2 stops20h 35m

£670

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Tue 22/9

09:40-18:55

1 stop14h 15m

Philadelphia

Wed 30/9

20:25-15:25

1 stop14h 00m

£676

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 22/10

09:25-18:55

1 stop14h 30m

Philadelphia

Sun 1/11

17:30-09:10

1 stop10h 40m

£684

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 15/10

05:40-22:43

3 stops22h 03m

Philadelphia

Wed 11/11

17:40-13:45

2 stops15h 05m

£721

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Wed 9/12

07:45-16:10

1 stop13h 25m

Philadelphia

Sun 13/12

17:40-09:10

1 stop10h 30m

£731

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 15/10

05:40-22:43

3 stops22h 03m

Philadelphia

Sun 25/10

15:20-11:15

2 stops15h 55m

£763

Flights are sorted by cheapest return flights first.

Deals found on 22/8

Showing 1-10 of 20 resultsSorted by cheapest first
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Best time to book a flight from Luton to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Luton with our price prediction graph.
Estimated return price

Related info for your journey

  • What airport do you fly into for flights to Philadelphia from London Luton?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from London Luton to Philadelphia. You should not have trouble finding flights to Philadelphia from London Luton; the airport handles an average of 0 inbound flights from London Luton per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Philadelphia airport from London Luton. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

  • Can I find deals for flights from Luton to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Luton to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Luton to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Philadelphia.

  • Can I find deals for business class flights from Luton to Philadelphia?

    Yes. Cheapflights offers flight deals from Luton to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
King of Prussia

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Can Cheapflights notify me if prices for flights from Luton to Philadelphia become cheaper?

Yes! Start tracking prices for Luton to Philadelphia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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