Cheap flights from London Luton Airport to Philadelphia from $400

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 2/1. 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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0 bags

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Find the cheapest flights from London Luton Airport to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 am - 10:46 pm
LTN
-
PHL
19h 16m3 stops
Multiple Airlines Logo
3:30 pm - 6:40 pm
PHL
-
LTN
22h 10m3 stops
$784Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
8:30 am - 10:46 pm
LTN
-
PHL
19h 16m3 stops
Multiple Airlines Logo
3:30 pm - 6:40 pm
PHL
-
LTN
22h 10m3 stops
$785Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
8:30 am - 10:46 pm
LTN
-
PHL
19h 16m3 stops
Multiple Airlines Logo
4:05 pm - 6:40 pm
PHL
-
LTN
21h 35m3 stops
$811Multiple Airlines
Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
6:20 am - 7:00 pm
LTN
-
PHL
17h 40m1 stop
Multiple Airlines Logo
8:30 pm - 12:45 pm
PHL
-
LTN
11h 15m1 stop
$831Multiple Airlines
Fri, Apr 3 - Mon, Apr 13
Multiple Airlines Logo
10:35 am - 7:00 pm
LTN
-
PHL
13h 25m1 stop
Multiple Airlines Logo
8:30 pm - 12:45 pm
PHL
-
LTN
11h 15m1 stop
$839Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
10:25 am - 4:00 pm
LTN
-
PHL
10h 35m1 stop
Multiple Airlines Logo
5:30 pm - 9:45 am
PHL
-
LTN
11h 15m1 stop
$918Multiple Airlines
Fri, Dec 26 - Tue, Dec 30
Multiple Airlines Logo
9:25 pm - 7:00 pm
LTN
-
PHL
26h 35m1 stop
Multiple Airlines Logo
8:30 pm - 12:45 pm
PHL
-
LTN
11h 15m1 stop
$921Multiple Airlines
Sat, Apr 4 - Mon, Apr 13
Multiple Airlines Logo
9:00 am - 7:00 pm
LTN
-
PHL
15h 00m1 stop
Multiple Airlines Logo
8:30 pm - 3:40 pm
PHL
-
LTN
14h 10m1 stop
$931Multiple Airlines
Sat, Apr 4 - Sun, Apr 12
Multiple Airlines Logo
9:00 am - 7:00 pm
LTN
-
PHL
15h 00m1 stop
Multiple Airlines Logo
8:30 pm - 12:35 pm
PHL
-
LTN
11h 05m1 stop
$934Multiple Airlines
Sat, Apr 4 - Wed, Apr 15
Multiple Airlines Logo
1:00 pm - 7:00 pm
LTN
-
PHL
11h 00m1 stop
Multiple Airlines Logo
8:30 pm - 4:45 pm
PHL
-
LTN
15h 15m1 stop
$938Multiple Airlines
Thu, Jun 11 - Thu, Jun 25

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 December 14, 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

Tue 1/27

8:30 am-10:46 pm

3 stops19h 16m

Philadelphia

Tue 2/3

3:30 pm-6:40 pm

3 stops22h 10m

$784

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 1/27

8:30 am-10:46 pm

3 stops19h 16m

Philadelphia

Tue 2/3

3:30 pm-6:40 pm

3 stops22h 10m

$785

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 1/26

8:30 am-10:46 pm

3 stops19h 16m

Philadelphia

Mon 2/2

4:05 pm-6:40 pm

3 stops21h 35m

$811

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 4/3

6:20 am-7:00 pm

1 stop17h 40m

Philadelphia

Mon 4/13

8:30 pm-12:45 pm

1 stop11h 15m

$831

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 4/6

10:35 am-7:00 pm

1 stop13h 25m

Philadelphia

Mon 4/13

8:30 pm-12:45 pm

1 stop11h 15m

$839

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 12/26

10:25 am-4:00 pm

1 stop10h 35m

Philadelphia

Tue 12/30

5:30 pm-9:45 am

1 stop11h 15m

$918

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 4/4

9:25 pm-7:00 pm

1 stop26h 35m

Philadelphia

Mon 4/13

8:30 pm-12:45 pm

1 stop11h 15m

$921

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 4/4

9:00 am-7:00 pm

1 stop15h 00m

Philadelphia

Sun 4/12

8:30 pm-3:40 pm

1 stop14h 10m

$931

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 4/4

9:00 am-7:00 pm

1 stop15h 00m

Philadelphia

Wed 4/15

8:30 pm-12:35 pm

1 stop11h 05m

$934

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 6/11

1:00 pm-7:00 pm

1 stop11h 00m

Philadelphia

Thu 6/25

8:30 pm-4:45 pm

1 stop15h 15m

$938

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 $770. On the other hand, Sunday 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 $903.

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 $822.

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

Fastest flight time

11h 00m

Direct flights

None
The fastest flight from London Luton Airport to Philadelphia takes 11h 00m
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 11h 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
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
Pottstown
Elkton
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
Tue 1/13
Tue 1/20

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