Cheap flights from London Luton Airport to Philadelphia from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Luton Airport to Philadelphia departing on 12/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 am - 4:00 pmLTN-PHL
12h 10m1 stop
Multiple Airlines Logo
5:30 pm - 9:45 amPHL-LTN
11h 15m1 stop
$638Multiple Airlines
Find Deal
Mon, Dec 15 - Tue, Dec 30
Multiple Airlines Logo
8:50 am - 4:00 pmLTN-PHL
12h 10m1 stop
Multiple Airlines Logo
5:30 pm - 9:45 amPHL-LTN
11h 15m1 stop
$640Multiple Airlines
Find Deal
Mon, Dec 15 - Tue, Dec 30
Multiple Airlines Logo
8:55 pm - 3:49 pmLTN-PHL
23h 54m2 stops
Multiple Airlines Logo
4:35 pm - 11:45 amPHL-LTN
14h 10m2 stops
$718Multiple Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
Multiple Airlines Logo
8:50 pm - 7:56 pmLTN-PHL
28h 06m3 stops
Multiple Airlines Logo
6:00 am - 7:25 pmPHL-LTN
32h 25m3 stops
$750Multiple Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Multiple Airlines Logo
8:00 pm - 10:46 pmLTN-PHL
31h 46m3 stops
Multiple Airlines Logo
9:20 am - 11:45 amPHL-LTN
21h 25m2 stops
$761Multiple Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 21
Multiple Airlines Logo
6:00 am - 4:00 pmLTN-PHL
15h 00m1 stop
Multiple Airlines Logo
5:30 pm - 9:45 amPHL-LTN
11h 15m1 stop
$790Multiple Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
Multiple Airlines Logo
6:55 am - 8:53 amLTN-PHL
30h 58m3 stops
Multiple Airlines Logo
5:25 am - 8:10 pmPHL-LTN
33h 45m3 stops
$793Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
Multiple Airlines Logo
5:00 pm - 8:27 pmLTN-PHL
32h 27m3 stops
Multiple Airlines Logo
6:00 am - 8:10 pmPHL-LTN
33h 10m3 stops
$814Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
Multiple Airlines Logo
6:55 am - 8:52 amLTN-PHL
29h 57m3 stops
Multiple Airlines Logo
6:00 am - 7:25 pmPHL-LTN
32h 25m3 stops
$818Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
9:20 am - 11:18 amLTN-PHL
30h 58m2 stops
Multiple Airlines Logo
5:30 pm - 8:35 amPHL-LTN
10h 05m1 stop
$833Multiple Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19

momondo Fare Finder

 
Customize your flight search to find flights from London Luton Airport 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, momondo users made 832,500 searches. Data last updated October 16, 2025.
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

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 12/15

8:50 am-4:00 pm

1 stop12h 10m

Philadelphia

Tue 12/30

5:30 pm-9:45 am

1 stop11h 15m

$638

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 12/15

8:50 am-4:00 pm

1 stop12h 10m

Philadelphia

Tue 12/30

5:30 pm-9:45 am

1 stop11h 15m

$640

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 11/21

8:55 pm-3:49 pm

2 stops23h 54m

Philadelphia

Sun 11/30

4:35 pm-11:45 am

2 stops14h 10m

$718

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 11/12

8:50 pm-7:56 pm

3 stops28h 06m

Philadelphia

Wed 11/19

6:00 am-7:25 pm

3 stops32h 25m

$750

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 12/11

8:00 pm-10:46 pm

3 stops31h 46m

Philadelphia

Sun 12/21

9:20 am-11:45 am

2 stops21h 25m

$761

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 12/13

6:00 am-4:00 pm

1 stop15h 00m

Philadelphia

Tue 12/16

5:30 pm-9:45 am

1 stop11h 15m

$790

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 11/26

6:55 am-8:53 am

3 stops30h 58m

Philadelphia

Mon 12/1

5:25 am-8:10 pm

3 stops33h 45m

$793

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 11/13

5:00 pm-8:27 pm

3 stops32h 27m

Philadelphia

Mon 11/17

6:00 am-8:10 pm

3 stops33h 10m

$814

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Wed 10/29

6:55 am-8:52 am

3 stops29h 57m

Philadelphia

Wed 11/5

6:00 am-7:25 pm

3 stops32h 25m

$818

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 11/15

9:20 am-11:18 am

2 stops30h 58m

Philadelphia

Wed 11/19

5:30 pm-8:35 am

1 stop10h 05m

$833

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from London Luton Airport to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The cheapest day to depart from London Luton Airport to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $773. On the other hand, Saturday is the most expensive day to depart from London Luton Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $889.

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

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from London Luton Airport to Philadelphia in the evening for as low as $704. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $832.

When to book flights from London Luton Airport to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from London Luton Airport to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Luton Airport to Philadelphia (LTN to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Luton Airport to Philadelphia

Direct flights

None
There are no direct flights from London Luton Airport to Philadelphia. There are no popular flight routes from London Luton Airport to Philadelphia.
  • How far is London Luton to Philadelphia by plane?

    Philadelphia is 3521.0 mi away from London Luton. By plane, this route typically takes 12h 00m.

  • When did momondo last update prices for flights from London Luton Airport to Philadelphia Airport?

    Prices for flights from London Luton Airport to Philadelphia Airport refresh daily.

  • How old do you have to be to fly from London Luton Airport to Philadelphia Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Luton Airport to Philadelphia Airport.

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

    The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
Somers Point

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Philadelphia for you.

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

Flights from London to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Philadelphia?

Once all potential London to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from London and alert you when they change.

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1 adult
Sat 11/15
Sat 11/22

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