Cheap flights from London Luton Airport to Philadelphia from $346

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 2/28. 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
6:05 am - 7:52 pm
LTN
-
PHL
42h 47m
3 stops
Multiple Airlines Logo
9:39 am - 8:55 pm
PHL
-
LTN
31h 16m
3 stops
$736Multiple Airlines
Thu, Mar 5 - Tue, Mar 10
Multiple Airlines Logo
6:05 am - 11:50 pm
LTN
-
PHL
46h 45m
3 stops
Multiple Airlines Logo
6:30 pm - 9:45 am
PHL
-
LTN
11h 15m
1 stop
$810Multiple Airlines
Thu, Mar 5 - Tue, Mar 10
Multiple Airlines Logo
8:15 am - 6:55 pm
LTN
-
PHL
15h 40m
1 stop
Multiple Airlines Logo
8:25 pm - 12:45 pm
PHL
-
LTN
11h 20m
1 stop
$841Multiple Airlines
Mon, Mar 30 - Mon, Apr 6
Multiple Airlines Logo
3:20 pm - 10:46 pm
LTN
-
PHL
35h 26m
3 stops
Multiple Airlines Logo
3:30 pm - 12:25 pm
PHL
-
LTN
16h 55m
2 stops
$878Multiple Airlines
Fri, Mar 13 - Sat, Mar 21
Multiple Airlines Logo
3:20 pm - 10:46 pm
LTN
-
PHL
35h 26m
3 stops
Multiple Airlines Logo
4:35 pm - 4:05 pm
PHL
-
LTN
19h 30m
3 stops
$907Multiple Airlines
Fri, Mar 13 - Sat, Mar 21
Multiple Airlines Logo
5:40 am - 6:55 pm
LTN
-
PHL
18h 15m
2 stops
Multiple Airlines Logo
5:40 pm - 9:00 pm
PHL
-
LTN
22h 20m
2 stops
$920Multiple Airlines
Tue, Apr 21 - Tue, May 12
Multiple Airlines Logo
5:40 am - 6:55 pm
LTN
-
PHL
18h 15m
2 stops
Multiple Airlines Logo
10:05 am - 9:00 pm
PHL
-
LTN
29h 55m
3 stops
$924Multiple Airlines
Tue, Apr 21 - Tue, May 12
Multiple Airlines Logo
5:50 am - 4:00 pm
LTN
-
PHL
15h 10m
1 stop
Multiple Airlines Logo
6:30 pm - 8:55 am
PHL
-
LTN
10h 25m
1 stop
$932Multiple Airlines
Fri, Mar 6 - Fri, Mar 13
Multiple Airlines Logo
6:00 am - 10:46 pm
LTN
-
PHL
20h 46m
2 stops
Multiple Airlines Logo
6:30 pm - 9:45 am
PHL
-
LTN
11h 15m
1 stop
$946Multiple Airlines
Sat, Mar 14 - Tue, Mar 17
Multiple Airlines Logo
6:00 am - 10:46 pm
LTN
-
PHL
20h 46m
2 stops
Multiple Airlines Logo
9:53 am - 8:25 pm
PHL
-
LTN
30h 32m
3 stops
$951Multiple Airlines
Sat, Mar 14 - Tue, Mar 17

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 January 21, 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

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 3/5

6:05 am-7:52 pm

3 stops42h 47m

Philadelphia

Tue 3/10

9:39 am-8:55 pm

3 stops31h 16m

$736

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 3/5

6:05 am-11:50 pm

3 stops46h 45m

Philadelphia

Tue 3/10

6:30 pm-9:45 am

1 stop11h 15m

$810

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Mon 3/30

8:15 am-6:55 pm

1 stop15h 40m

Philadelphia

Mon 4/6

8:25 pm-12:45 pm

1 stop11h 20m

$841

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 3/13

3:20 pm-10:46 pm

3 stops35h 26m

Philadelphia

Sat 3/21

3:30 pm-12:25 pm

2 stops16h 55m

$878

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 3/13

3:20 pm-10:46 pm

3 stops35h 26m

Philadelphia

Sat 3/21

4:35 pm-4:05 pm

3 stops19h 30m

$907

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 4/21

5:40 am-6:55 pm

2 stops18h 15m

Philadelphia

Tue 5/12

5:40 pm-9:00 pm

2 stops22h 20m

$920

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Tue 4/21

5:40 am-6:55 pm

2 stops18h 15m

Philadelphia

Tue 5/12

10:05 am-9:00 pm

3 stops29h 55m

$924

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Fri 3/6

5:50 am-4:00 pm

1 stop15h 10m

Philadelphia

Fri 3/13

6:30 pm-8:55 am

1 stop10h 25m

$932

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 3/14

6:00 am-10:46 pm

2 stops20h 46m

Philadelphia

Tue 3/17

6:30 pm-9:45 am

1 stop11h 15m

$946

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Sat 3/14

6:00 am-10:46 pm

2 stops20h 46m

Philadelphia

Tue 3/17

9:53 am-8:25 pm

3 stops30h 32m

$951

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 $776. 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 at noon. momondo users have found flights departing from London Luton Airport to Philadelphia at noon for as low as $810. 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 $833.

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 05m

Direct flights

None
The fastest flight from London Luton Airport to Philadelphia takes 11h 05m
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 05m.

  • 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
Wildwood Crest
Ocean City
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
New Castle
Pottstown
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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Fri 2/20
Fri 2/27

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