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Cheap flights from Philadelphia to London from $432

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 7/28. 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 Philadelphia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:25 pm - 12:50 pm
PHL
-
SEN
16h 25m
2 stops
Multiple Airlines Logo
6:30 am - 9:34 pm
SEN
-
PHL
20h 04m
2 stops
$1,045Multiple Airlines
Wed, Aug 19 - Mon, Aug 31
Multiple Airlines Logo
3:25 pm - 12:50 pm
PHL
-
SEN
16h 25m
2 stops
Multiple Airlines Logo
6:30 am - 10:46 pm
SEN
-
PHL
21h 16m
3 stops
$1,050Multiple Airlines
Wed, Aug 19 - Mon, Aug 31
Multiple Airlines Logo
10:05 am - 7:35 pm
PHL
-
SEN
28h 30m
3 stops
Multiple Airlines Logo
8:10 am - 9:33 pm
SEN
-
PHL
42h 23m
3 stops
$1,109Multiple Airlines
Sun, Jun 7 - Fri, Jun 12
Multiple Airlines Logo
6:00 am - 7:35 pm
PHL
-
SEN
32h 35m
3 stops
Multiple Airlines Logo
7:25 am - 10:43 pm
SEN
-
PHL
20h 18m
3 stops
$1,145Multiple Airlines
Thu, Jun 4 - Sun, Jun 7
Multiple Airlines Logo
10:05 am - 4:40 pm
PHL
-
SEN
25h 35m
3 stops
Multiple Airlines Logo
7:55 am - 9:33 pm
SEN
-
PHL
18h 38m
3 stops
$1,167Multiple Airlines
Wed, May 27 - Sat, Jun 6
Multiple Airlines Logo
6:00 am - 7:35 pm
PHL
-
SEN
32h 35m
3 stops
Multiple Airlines Logo
8:05 pm - 10:43 pm
SEN
-
PHL
31h 38m
3 stops
$1,184Multiple Airlines
Thu, Jun 4 - Mon, Jun 8
Multiple Airlines Logo
3:25 pm - 2:00 pm
PHL
-
SEN
17h 35m
2 stops
Multiple Airlines Logo
8:25 am - 6:55 pm
SEN
-
PHL
39h 30m
3 stops
$1,200Multiple Airlines
Thu, Sep 17 - Wed, Sep 30
Multiple Airlines Logo
10:05 am - 2:00 pm
PHL
-
SEN
22h 55m
3 stops
Multiple Airlines Logo
8:25 am - 6:55 pm
SEN
-
PHL
39h 30m
3 stops
$1,210Multiple Airlines
Thu, Sep 17 - Wed, Sep 30
Multiple Airlines Logo
10:05 am - 7:35 pm
PHL
-
SEN
28h 30m
3 stops
Multiple Airlines Logo
8:10 am - 2:48 pm
SEN
-
PHL
35h 38m
3 stops
$1,267Multiple Airlines
Thu, May 28 - Fri, Jun 5
Multiple Airlines Logo
10:05 am - 7:35 pm
PHL
-
SEN
28h 30m
3 stops
Multiple Airlines Logo
6:30 am - 9:33 pm
SEN
-
PHL
20h 03m
2 stops
$1,282Multiple Airlines
Sat, May 23 - Tue, May 26

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to London Southend 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 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Philadelphia to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Wed 8/19

3:25 pm-12:50 pm

2 stops16h 25m

London Southend

Mon 8/31

6:30 am-9:34 pm

2 stops20h 04m

$1,045

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Wed 8/19

3:25 pm-12:50 pm

2 stops16h 25m

London Southend

Mon 8/31

6:30 am-10:46 pm

3 stops21h 16m

$1,050

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Sun 6/7

10:05 am-7:35 pm

3 stops28h 30m

London Southend

Fri 6/12

8:10 am-9:33 pm

3 stops42h 23m

$1,109

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Thu 6/4

6:00 am-7:35 pm

3 stops32h 35m

London Southend

Sun 6/7

7:25 am-10:43 pm

3 stops20h 18m

$1,145

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Wed 5/27

10:05 am-4:40 pm

3 stops25h 35m

London Southend

Sat 6/6

7:55 am-9:33 pm

3 stops18h 38m

$1,167

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Thu 6/4

6:00 am-7:35 pm

3 stops32h 35m

London Southend

Mon 6/8

8:05 pm-10:43 pm

3 stops31h 38m

$1,184

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Thu 9/17

3:25 pm-2:00 pm

2 stops17h 35m

London Southend

Wed 9/30

8:25 am-6:55 pm

3 stops39h 30m

$1,200

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Thu 9/17

10:05 am-2:00 pm

3 stops22h 55m

London Southend

Wed 9/30

8:25 am-6:55 pm

3 stops39h 30m

$1,210

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Thu 5/28

10:05 am-7:35 pm

3 stops28h 30m

London Southend

Fri 6/5

8:10 am-2:48 pm

3 stops35h 38m

$1,267

PhiladelphiaLondon

PHL - SEN

PHLSEN

Philadelphia

Sat 5/23

10:05 am-7:35 pm

3 stops28h 30m

London Southend

Tue 5/26

6:30 am-9:33 pm

2 stops20h 03m

$1,282

Flights are sorted by cheapest round-trip flights first.

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

When to book flights from Philadelphia to London Southend Airport

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

Cheap Philadelphia to London Southend Airport (PHL to SEN) flight deals and tips

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

Fastest flight time

17h 35m

Direct flights

None
The fastest flight from Philadelphia to London Southend Airport takes 17h 35m
There are no direct flights from Philadelphia to London Southend Airport. There are no popular flight routes from Philadelphia to London Southend Airport.
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Frequently asked questions about flying from Philadelphia to London Southend Airport

  • How far is Philadelphia to London Southend by plane?

    The distance between Philadelphia and London Southend is about 3570.8 mi. Flights usually cover this in 17h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Philadelphia Airport to London Southend Airport refresh daily.

  • How old do you have to be to fly from Philadelphia Airport to London Southend 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 Southend Airport.

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

    The travel and health documents required for your trip to London Southend Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Southend Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Philadelphia to London Southend Airport

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Philadelphia from London Southend Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Cobham
Folkestone
Romford
Uxbridge
Guildford

Why use momondo?

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

It is quick and easy to find Philadelphia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Flights from Philadelphia to London 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 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?

If you are not ready to book a flight from Philadelphia to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Southend Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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