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Cheap flights from London Luton Airport to Philadelphia from £341

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — PHL
28 Jun — 5 Jul1
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
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 29 May 2026.

Mon 22/608:15
LTN
-
PHL
1 stop15h 40m
Multiple Airlines
Mon 29/620:25
PHL
-
LTN
1 stop11h 20m
Multiple Airlines
Deal found 25/5£602
Fri 26/606:20
LTN
-
PHL
1 stop17h 35m
Multiple Airlines
Sun 28/620:25
PHL
-
LTN
1 stop14h 00m
Multiple Airlines
Deal found 25/5£616
Tue 9/605:40
LTN
-
PHL
3 stops20h 53m
Multiple Airlines
Tue 25/813:15
PHL
-
LTN
2 stops28h 10m
Multiple Airlines
Deal found 29/5£652
Mon 1/618:05
LTN
-
PHL
3 stops32h 28m
Multiple Airlines
Mon 8/616:20
PHL
-
LTN
2 stops25h 30m
Multiple Airlines
Deal found 28/5£653
Thu 4/609:25
LTN
-
PHL
1 stop14h 30m
Multiple Airlines
Thu 11/620:25
PHL
-
LTN
1 stop11h 00m
Multiple Airlines
Deal found 27/5£656
Wed 15/718:10
LTN
-
PHL
3 stops32h 24m
Multiple Airlines
Wed 5/810:05
PHL
-
LTN
3 stops21h 30m
Multiple Airlines
Deal found 26/5£659
Wed 24/608:30
LTN
-
PHL
3 stops35h 19m
Multiple Airlines
Wed 1/707:00
PHL
-
LTN
3 stops31h 15m
Multiple Airlines
Deal found 25/5£660
Fri 12/612:50
LTN
-
PHL
1 stop11h 05m
Multiple Airlines
Fri 19/620:25
PHL
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 27/5£661
Tue 9/614:45
LTN
-
PHL
2 stops30h 20m
Multiple Airlines
Sun 14/615:25
PHL
-
LTN
2 stops14h 35m
Multiple Airlines
Deal found 25/5£666
Tue 15/909:40
LTN
-
PHL
1 stop14h 15m
Multiple Airlines
Tue 22/920:25
PHL
-
LTN
1 stop12h 00m
Multiple Airlines
Deal found 25/5£669
Mon 14/908:15
LTN
-
PHL
1 stop15h 40m
Multiple Airlines
Sun 20/920:25
PHL
-
LTN
1 stop10h 00m
Multiple Airlines
Deal found 28/5£671

Find 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 29 May 2026.

Round-trip from

£602

One-way from

£341

Popular in

December

Cheapest in

September

Average price

£604
22/6-29/6
  • 22/6-29/6
  • 2 total stops
  • 27h 00m total
  • London to Philadelphia
Search Deals
24/6
  • 24/6
  • 3 total stops
  • 22h 02m total
  • London to Philadelphia
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 29 May 2026.
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 - PHL

LTNPHL

London Luton

Wed 15/7

18:10-21:34

3 stops32h 24m

Philadelphia

Wed 5/8

10:05-12:35

3 stops21h 30m

£659

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 16/6

05:40-21:33

3 stops20h 53m

Philadelphia

Wed 17/6

06:00-15:25

3 stops28h 25m

£693

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 11/6

05:40-21:33

3 stops20h 53m

Philadelphia

Sun 14/6

10:25-22:55

2 stops31h 30m

£745

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 24/6

06:15-14:49

3 stops37h 34m

Philadelphia

Wed 1/7

16:20-15:25

2 stops18h 05m

£786
Fastest return journey

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 25/6

13:00-18:55

1 stop10h 55m

Philadelphia

Sun 28/6

20:25-15:25

1 stop14h 00m

£796

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 20/7

08:15-18:55

1 stop15h 40m

Philadelphia

Thu 23/7

20:25-16:45

1 stop15h 20m

£805

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 22/6

05:40-22:44

3 stops22h 04m

Philadelphia

Mon 29/6

10:05-13:45

3 stops22h 40m

£810

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 27/6

09:00-10:09

2 stops30h 09m

Philadelphia

Mon 6/7

15:25-19:05

3 stops22h 40m

£824

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 16/6

09:40-18:55

1 stop14h 15m

Philadelphia

Tue 23/6

20:25-15:30

1 stop14h 05m

£829

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 6/10

05:40-18:55

2 stops18h 15m

Philadelphia

Tue 13/10

16:20-13:25

3 stops16h 05m

£841

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 21 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
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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Why should you use Cheapflights to find cheap flight tickets from Luton to Philadelphia?

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Can Cheapflights find flights from Luton to Philadelphia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Luton to Philadelphia flexibly with Cheapflights today.

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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