Cheap flights from Philadelphia to London from £280

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 9/9. 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
1 adult, Economy, 0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:21 - 09:15
PHL
-
LTN
18h 54m
2 stops
Multiple Airlines Logo
09:40 - 18:55
LTN
-
PHL
14h 15m
1 stop
£677Multiple Airlines
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
20:25 - 15:30
PHL
-
LTN
14h 05m
1 stop
Multiple Airlines Logo
09:40 - 18:55
LTN
-
PHL
14h 15m
1 stop
£684Multiple Airlines
Tue, 18 Aug - Tue, 1 Sep
Multiple Airlines Logo
20:25 - 16:05
PHL
-
LTN
14h 40m
1 stop
Multiple Airlines Logo
09:00 - 20:00
LTN
-
PHL
16h 00m
2 stops
£690Multiple Airlines
Sat, 1 Aug - Sat, 8 Aug
Multiple Airlines Logo
10:05 - 00:50
PHL
-
LTN
33h 45m
3 stops
Multiple Airlines Logo
11:40 - 16:05
LTN
-
PHL
33h 25m
3 stops
£691Multiple Airlines
Tue, 7 Jul - Tue, 14 Jul
Multiple Airlines Logo
20:25 - 16:05
PHL
-
LTN
14h 40m
1 stop
Multiple Airlines Logo
09:00 - 20:00
LTN
-
PHL
16h 00m
2 stops
£692Multiple Airlines
Sat, 1 Aug - Sat, 8 Aug
Multiple Airlines Logo
20:25 - 17:25
PHL
-
LTN
16h 00m
1 stop
Multiple Airlines Logo
09:00 - 18:55
LTN
-
PHL
14h 55m
1 stop
£692Multiple Airlines
Fri, 24 Jul - Sun, 2 Aug
Multiple Airlines Logo
15:25 - 00:30
PHL
-
LTN
28h 05m
3 stops
Multiple Airlines Logo
18:15 - 21:34
LTN
-
PHL
32h 19m
3 stops
£693Multiple Airlines
Wed, 12 Aug - Fri, 4 Sep
Multiple Airlines Logo
20:25 - 15:45
PHL
-
LTN
14h 20m
1 stop
Multiple Airlines Logo
09:40 - 18:55
LTN
-
PHL
14h 15m
1 stop
£694Multiple Airlines
Mon, 10 Aug - Tue, 25 Aug
Multiple Airlines Logo
20:25 - 12:45
PHL
-
LTN
11h 20m
1 stop
Multiple Airlines Logo
08:15 - 20:00
LTN
-
PHL
16h 45m
2 stops
£695Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
20:25 - 11:25
PHL
-
LTN
10h 00m
1 stop
Multiple Airlines Logo
11:00 - 18:55
LTN
-
PHL
12h 55m
1 stop
£695Multiple Airlines
Sun, 19 Jul - Sun, 26 Jul

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 5 June 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

Cheapest return flight

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Tue 4/8

09:21-09:15

2 stops18h 54m

London Luton

Tue 11/8

09:40-18:55

1 stop14h 15m

£677

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Tue 18/8

20:25-15:30

1 stop14h 05m

London Luton

Tue 1/9

09:40-18:55

1 stop14h 15m

£684

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sat 1/8

20:25-16:05

1 stop14h 40m

London Luton

Sat 8/8

09:00-20:00

2 stops16h 00m

£690

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Tue 7/7

10:05-00:50

3 stops33h 45m

London Luton

Tue 14/7

11:40-16:05

3 stops33h 25m

£691

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sat 1/8

20:25-16:05

1 stop14h 40m

London Luton

Sat 8/8

09:00-20:00

2 stops16h 00m

£692

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Fri 24/7

20:25-17:25

1 stop16h 00m

London Luton

Sun 2/8

09:00-18:55

1 stop14h 55m

£692

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Wed 12/8

15:25-00:30

3 stops28h 05m

London Luton

Fri 4/9

18:15-21:34

3 stops32h 19m

£693

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Mon 10/8

20:25-15:45

1 stop14h 20m

London Luton

Tue 25/8

09:40-18:55

1 stop14h 15m

£694

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Mon 24/8

20:25-12:45

1 stop11h 20m

London Luton

Mon 31/8

08:15-20:00

2 stops16h 45m

£695
Fastest return journey

PhiladelphiaLondon

PHL - LTN

PHLLTN

Philadelphia

Sun 19/7

20:25-11:25

1 stop10h 00m

London Luton

Sun 26/7

11:00-18:55

1 stop12h 55m

£695

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 00m

Direct flights

None
The fastest flight from Philadelphia to London Luton Airport takes 10h 00m
There are no direct flights from Philadelphia to London Luton Airport. There are no popular flight routes from Philadelphia to London Luton Airport.

Frequently asked questions about flying from Philadelphia to London Luton Airport

  • 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 00m.

  • 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.

Frequently asked questions about flying from Philadelphia to London Luton Airport

  • 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
Gatwick
Luton
Wembley
Slough
Maidstone
Southend-on-Sea
Ipswich
Ilford
Canterbury
Guildford
Hayes
Folkestone
Chelmsford
Dover
Bedford
Chichester
Harlow
Colchester

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.

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