Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Philadelphia to London from £183

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Philadelphia to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:30 - 20:35
PHL
-
LTN
25h 05m3 stops
Multiple Airlines Logo
07:00 - 22:46
LTN
-
PHL
19h 46m3 stops
£452Multiple Airlines
Mon, 9 Mar - Tue, 17 Mar
Multiple Airlines Logo
15:30 - 20:35
PHL
-
LTN
25h 05m3 stops
Multiple Airlines Logo
07:00 - 22:46
LTN
-
PHL
19h 46m3 stops
£454Multiple Airlines
Mon, 9 Mar - Tue, 17 Mar
Multiple Airlines Logo
07:50 - 20:10
PHL
-
LTN
31h 20m3 stops
Multiple Airlines Logo
20:50 - 14:47
LTN
-
PHL
22h 57m3 stops
£456Multiple Airlines
Fri, 6 Feb - Mon, 9 Feb
Multiple Airlines Logo
07:50 - 20:10
PHL
-
LTN
31h 20m3 stops
Multiple Airlines Logo
20:50 - 14:47
LTN
-
PHL
22h 57m3 stops
£469Multiple Airlines
Fri, 6 Feb - Mon, 9 Feb
Multiple Airlines Logo
17:40 - 16:45
PHL
-
LTN
18h 05m2 stops
Multiple Airlines Logo
09:00 - 22:46
LTN
-
PHL
18h 46m3 stops
£471Multiple Airlines
Sun, 18 Jan - Tue, 27 Jan
Multiple Airlines Logo
17:40 - 16:45
PHL
-
LTN
18h 05m2 stops
Multiple Airlines Logo
09:00 - 22:46
LTN
-
PHL
18h 46m3 stops
£472Multiple Airlines
Sun, 18 Jan - Tue, 27 Jan
Multiple Airlines Logo
16:05 - 16:00
PHL
-
LTN
18h 55m2 stops
Multiple Airlines Logo
19:05 - 15:49
LTN
-
PHL
25h 44m3 stops
£473Multiple Airlines
Thu, 26 Feb - Mon, 2 Mar
Multiple Airlines Logo
20:25 - 15:25
PHL
-
LTN
14h 00m1 stop
Multiple Airlines Logo
09:05 - 18:55
LTN
-
PHL
14h 50m1 stop
£475Multiple Airlines
Wed, 22 Apr - Sun, 3 May
Multiple Airlines Logo
16:05 - 16:00
PHL
-
LTN
18h 55m2 stops
Multiple Airlines Logo
06:00 - 15:49
LTN
-
PHL
14h 49m2 stops
£479Multiple Airlines
Thu, 26 Feb - Mon, 2 Mar
Multiple Airlines Logo
15:30 - 23:05
PHL
-
LTN
26h 35m3 stops
Multiple Airlines Logo
21:00 - 15:49
LTN
-
PHL
23h 49m2 stops
£480Multiple Airlines
Wed, 25 Feb - Sat, 28 Feb

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to London Luton Airport 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 279,928 searches. Data last updated 9 January 2026.
Use the filters below to find and compare flights from Philadelphia to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Mon 9/3

15:30-20:35

3 stops25h 05m

London Luton

Tue 17/3

07:00-22:46

3 stops19h 46m

£452

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Mon 9/3

15:30-20:35

3 stops25h 05m

London Luton

Tue 17/3

07:00-22:46

3 stops19h 46m

£454

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 6/2

07:50-20:10

3 stops31h 20m

London Luton

Mon 9/2

20:50-14:47

3 stops22h 57m

£456

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 6/2

07:50-20:10

3 stops31h 20m

London Luton

Mon 9/2

20:50-14:47

3 stops22h 57m

£469

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sun 18/1

17:40-16:45

2 stops18h 05m

London Luton

Tue 27/1

09:00-22:46

3 stops18h 46m

£471

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sun 18/1

17:40-16:45

2 stops18h 05m

London Luton

Tue 27/1

09:00-22:46

3 stops18h 46m

£472

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Thu 26/2

16:05-16:00

2 stops18h 55m

London Luton

Mon 2/3

19:05-15:49

3 stops25h 44m

£473

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 22/4

20:25-15:25

1 stop14h 00m

London Luton

Sun 3/5

09:05-18:55

1 stop14h 50m

£475

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Thu 26/2

16:05-16:00

2 stops18h 55m

London Luton

Mon 2/3

06:00-15:49

2 stops14h 49m

£479

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 25/2

15:30-23:05

3 stops26h 35m

London Luton

Sat 28/2

21:00-15:49

2 stops23h 49m

£480

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Philadelphia to London Luton Airport

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

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

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

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Philadelphia to London Luton Airport takes 10h 25m
There are no direct flights from Philadelphia to London Luton Airport. There are no popular flight routes from Philadelphia to London Luton Airport.
Search flight deals

  • How far is Philadelphia to London Luton by plane?

    A flight from Philadelphia to London Luton will travel around 3521.0 mi. In terms of flight time, this usually takes a little over 10h 25m.

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

    Prices for flights from Philadelphia Airport to London Luton Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to London Luton Airport.

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

    The travel and health documents you'll need for your trip to London Luton 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 London Luton Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Philadelphia to London Luton Airport?

    Confirm your travel details to search for the latest offers for flights from Philadelphia to London Luton Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Philadelphia to London Luton Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Worthing
Hounslow
Colchester
Bedford
Ramsgate
Folkestone

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from Philadelphia with this policy.

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

momondo helps you find the best flight between Philadelphia and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Philadelphia to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Luton Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 8/2
Sun 15/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London