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Cheap flights from London Luton Airport to Philadelphia from £376

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — PHL
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Luton to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Philadelphia
Explore the most affordable flight options available from Luton to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Fri 5/1213:05LTN - PHL
2 stops13h 43mMultiple Airlines
Wed 10/1217:30PHL - LTN
1 stop10h 05mMultiple Airlines
Deal found 6/11£542
Sun 9/1108:05LTN - PHL
1 stop12h 55mMultiple Airlines
Sun 16/1117:30PHL - LTN
1 stop10h 25mMultiple Airlines
Deal found 6/11£584
Tue 2/1220:50LTN - PHL
3 stops30h 56mMultiple Airlines
Tue 9/1217:40PHL - LTN
2 stops21h 30mMultiple Airlines
Deal found 5/11£622
Fri 5/1216:30LTN - PHL
2 stops25h 55mMultiple Airlines
Mon 8/1219:55PHL - LTN
1 stop11h 20mMultiple Airlines
Deal found 6/11£653
Mon 8/1206:15LTN - PHL
1 stop14h 15mMultiple Airlines
Mon 15/1219:55PHL - LTN
1 stop11h 20mMultiple Airlines
Deal found 6/11£663
Wed 17/1206:50LTN - PHL
1 stop14h 10mMultiple Airlines
Mon 5/108:40PHL - LTN
2 stops18h 55mMultiple Airlines
Deal found 5/11£677
Fri 5/1205:50LTN - PHL
1 stop15h 10mMultiple Airlines
Fri 12/1216:32PHL - LTN
2 stops17h 53mMultiple Airlines
Deal found 5/11£678
Sat 6/1206:00LTN - PHL
2 stops35h 55mMultiple Airlines
Sat 13/1217:30PHL - LTN
1 stop9h 05mMultiple Airlines
Deal found 6/11£688
Wed 12/1106:50LTN - PHL
1 stop14h 10mMultiple Airlines
Wed 19/1117:30PHL - LTN
1 stop18h 35mMultiple Airlines
Deal found 5/11£698
Wed 19/1106:55LTN - PHL
3 stops30h 58mMultiple Airlines
Tue 25/1117:30PHL - LTN
1 stop11h 15mMultiple Airlines
Deal found 5/11£706
Wed 19/1106:55LTN - PHL
3 stops30h 58mMultiple Airlines
Mon 24/1117:30PHL - LTN
1 stop10h 05mMultiple Airlines
Deal found 5/11£707

Cheap flight deals from Luton to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

£542

One-way from

£376

Popular in

December

Cheapest in

February

Average price

£554
5/12-10/12
  • 5/12-10/12
  • 3 total stops
  • 23h 48m total
  • London to Philadelphia
Search Deals
2/3
  • 2/3
  • 3 total stops
  • 34h 25m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton to Philadelphia 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, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from London Luton Airport to Philadelphia that are best for you.

Fly from

Luton

Fly to

Philadelphia

Route

Depart

Return

Price

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 5/12

13:05-21:48

2 stops13h 43m

Philadelphia

Wed 10/12

17:30-08:35

1 stop10h 05m

£542

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 5/12

16:30-13:25

2 stops25h 55m

Philadelphia

Mon 8/12

19:55-12:15

1 stop11h 20m

£653

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 8/12

06:15-15:30

1 stop14h 15m

Philadelphia

Mon 15/12

19:55-12:15

1 stop11h 20m

£663

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 5/12

05:50-16:00

1 stop15h 10m

Philadelphia

Fri 12/12

16:32-15:25

2 stops17h 53m

£678

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 6/12

06:00-12:55

2 stops35h 55m

Philadelphia

Sat 13/12

17:30-07:35

1 stop9h 05m

£688

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 19/11

06:55-08:53

3 stops30h 58m

Philadelphia

Tue 25/11

17:30-09:45

1 stop11h 15m

£706

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 15/12

08:50-16:00

1 stop12h 10m

Philadelphia

Sat 27/12

17:30-07:35

1 stop9h 05m

£716

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 16/12

09:00-16:00

1 stop12h 00m

Philadelphia

Sat 27/12

17:30-07:35

1 stop9h 05m

£722

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 16/12

09:00-16:00

1 stop12h 00m

Philadelphia

Thu 1/1

17:30-08:45

1 stop10h 15m

£724

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 28/11

05:50-16:00

1 stop15h 10m

Philadelphia

Fri 5/12

21:15-07:35

2 stops29h 20m

£726

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 21 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Luton to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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

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Alternative routes for Luton to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Southend to Newark flights
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Southend to Dulles Intl flights
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London City to Harrisburg flights
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Can Cheapflights notify me if prices for flights from Luton to Philadelphia become cheaper?

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