Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Philadelphia to London from £203

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 3/2. 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
18:30 - 08:35
PHL
-
LTN
10h 05m1 stop
Multiple Airlines Logo
06:50 - 17:00
LTN
-
PHL
14h 10m1 stop
£460Multiple Airlines
Wed, 18 Mar - Wed, 25 Mar
Multiple Airlines Logo
16:05 - 20:10
PHL
-
LTN
23h 05m3 stops
Multiple Airlines Logo
06:50 - 22:46
LTN
-
PHL
20h 56m3 stops
£463Multiple Airlines
Fri, 13 Feb - Wed, 18 Feb
Multiple Airlines Logo
20:30 - 12:35
PHL
-
LTN
11h 05m1 stop
Multiple Airlines Logo
06:15 - 19:00
LTN
-
PHL
17h 45m1 stop
£466Multiple Airlines
Wed, 8 Apr - Wed, 15 Apr
Multiple Airlines Logo
16:35 - 15:25
PHL
-
LTN
18h 50m2 stops
Multiple Airlines Logo
19:05 - 17:05
LTN
-
PHL
26h 00m2 stops
£475Multiple Airlines
Fri, 20 Mar - Mon, 23 Mar
Multiple Airlines Logo
15:30 - 17:05
PHL
-
LTN
20h 35m3 stops
Multiple Airlines Logo
06:00 - 15:49
LTN
-
PHL
14h 49m2 stops
£478Multiple Airlines
Wed, 25 Feb - Mon, 2 Mar
Multiple Airlines Logo
15:30 - 20:10
PHL
-
LTN
23h 40m2 stops
Multiple Airlines Logo
14:55 - 14:47
LTN
-
PHL
28h 52m3 stops
£480Multiple Airlines
Thu, 15 Jan - Mon, 19 Jan
Multiple Airlines Logo
07:50 - 20:10
PHL
-
LTN
31h 20m3 stops
Multiple Airlines Logo
14:55 - 14:47
LTN
-
PHL
28h 52m3 stops
£482Multiple Airlines
Thu, 15 Jan - Mon, 19 Jan
Multiple Airlines Logo
15:30 - 14:15
PHL
-
LTN
17h 45m3 stops
Multiple Airlines Logo
20:50 - 22:46
LTN
-
PHL
30h 56m3 stops
£504Multiple Airlines
Sun, 18 Jan - Sun, 25 Jan
Multiple Airlines Logo
20:30 - 16:45
PHL
-
LTN
15h 15m1 stop
Multiple Airlines Logo
08:05 - 19:00
LTN
-
PHL
15h 55m1 stop
£509Multiple Airlines
Thu, 9 Apr - Tue, 14 Apr
Multiple Airlines Logo
16:35 - 15:25
PHL
-
LTN
17h 50m2 stops
Multiple Airlines Logo
09:00 - 22:46
LTN
-
PHL
18h 46m3 stops
£510Multiple Airlines
Fri, 23 Jan - Tue, 27 Jan

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 20 December 2025.
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

Wed 18/3

18:30-08:35

1 stop10h 05m

London Luton

Wed 25/3

06:50-17:00

1 stop14h 10m

£460

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 13/2

16:05-20:10

3 stops23h 05m

London Luton

Wed 18/2

06:50-22:46

3 stops20h 56m

£463

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 8/4

20:30-12:35

1 stop11h 05m

London Luton

Wed 15/4

06:15-19:00

1 stop17h 45m

£466

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 20/3

16:35-15:25

2 stops18h 50m

London Luton

Mon 23/3

19:05-17:05

2 stops26h 00m

£475

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 25/2

15:30-17:05

3 stops20h 35m

London Luton

Mon 2/3

06:00-15:49

2 stops14h 49m

£478

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Thu 15/1

15:30-20:10

2 stops23h 40m

London Luton

Mon 19/1

14:55-14:47

3 stops28h 52m

£480

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Thu 15/1

07:50-20:10

3 stops31h 20m

London Luton

Mon 19/1

14:55-14:47

3 stops28h 52m

£482

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sun 18/1

15:30-14:15

3 stops17h 45m

London Luton

Sun 25/1

20:50-22:46

3 stops30h 56m

£504

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Thu 9/4

20:30-16:45

1 stop15h 15m

London Luton

Tue 14/4

08:05-19:00

1 stop15h 55m

£509

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 23/1

16:35-15:25

2 stops17h 50m

London Luton

Tue 27/1

09:00-22:46

3 stops18h 46m

£510

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 05m

Direct flights

None
The fastest flight from Philadelphia to London Luton Airport takes 10h 05m
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 05m.

  • 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
Hayes
Chelmsford
Dover
Worthing
Colchester
Bedford
Ramsgate
Hounslow
Stansted

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
Mon 19/1
Mon 26/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London