Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Philadelphia to London from £535

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 23/8. 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
Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Philadelphia to London

Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
15:29 - 17:35
PHL
-
SOU
21h 06m
2 stops
KLM Logo
17:20 - 16:17
SOU
-
PHL
27h 57m
2 stops
£745KLM
Tue, 25 Aug - Mon, 7 Sep
KLM Logo
13:15 - 08:45
PHL
-
SOU
14h 30m
2 stops
KLM Logo
17:20 - 18:04
SOU
-
PHL
29h 44m
2 stops
£782KLM
Thu, 27 Aug - Thu, 10 Sep
Multiple Airlines Logo
16:20 - 19:30
PHL
-
SOU
22h 10m
2 stops
Multiple Airlines Logo
20:00 - 15:41
SOU
-
PHL
24h 41m
2 stops
£785Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
Aer Lingus Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Aer Lingus Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£808Aer Lingus
Wed, 22 Jul - Wed, 29 Jul
Aer Lingus Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Aer Lingus Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£809Aer Lingus
Thu, 30 Jul - Thu, 6 Aug
Aer Lingus Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Aer Lingus Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£809Aer Lingus
Mon, 13 Jul - Mon, 20 Jul
Delta Logo
05:40 - 08:45
PHL
-
SOU
22h 05m
2 stops
Delta Logo
09:15 - 22:07
SOU
-
PHL
17h 52m
2 stops
£816Delta
Wed, 22 Jul - Wed, 29 Jul
Multiple Airlines Logo
20:25 - 07:20
PHL
-
SOU
29h 55m
2 stops
Multiple Airlines Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£827Multiple Airlines
Thu, 27 Aug - Thu, 10 Sep
Aer Lingus Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Aer Lingus Logo
09:20 - 18:55
SOU
-
PHL
14h 35m
1 stop
£879Aer Lingus
Tue, 25 Aug - Mon, 7 Sep
Multiple Airlines Logo
20:25 - 19:30
PHL
-
SOU
18h 05m
1 stop
Multiple Airlines Logo
06:45 - 18:55
SOU
-
PHL
17h 10m
2 stops
£888Multiple Airlines
Mon, 13 Jul - Mon, 20 Jul

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

Aer Lingus flights from Philadelphia to Southampton

Our best Aer Lingus deals on Philadelphia to Southampton flight tickets
Aer Lingus
22 Jul
PHL20:25Philadelphia
18h 05m
1 stop
SOU19:30Southampton Eastleigh
29 Jul
SOU09:20Southampton Eastleigh
14h 35m
1 stop
PHL18:55Philadelphia
£808
Aer Lingus
30 Jul
PHL20:25Philadelphia
18h 05m
1 stop
SOU19:30Southampton Eastleigh
6 Aug
SOU09:20Southampton Eastleigh
14h 35m
1 stop
PHL18:55Philadelphia
£809
Aer Lingus
13 Jul
PHL20:25Philadelphia
18h 05m
1 stop
SOU19:30Southampton Eastleigh
20 Jul
SOU09:20Southampton Eastleigh
14h 35m
1 stop
PHL18:55Philadelphia
£809

Delta flights from Philadelphia to Southampton

Our best Delta deals on Philadelphia to Southampton flight tickets
Delta
22 Jul
PHL05:40Philadelphia
22h 05m
2 stops
SOU08:45Southampton Eastleigh
29 Jul
SOU09:15Southampton Eastleigh
17h 52m
2 stops
PHL22:07Philadelphia
£816
Delta
9 Aug
PHL10:00Philadelphia
26h 35m
2 stops
SOU17:35Southampton Eastleigh
15 Aug
SOU09:15Southampton Eastleigh
35h 56m
2 stops
PHL16:11Philadelphia
£890
Delta
13 Jul
PHL08:05Philadelphia
19h 40m
2 stops
SOU08:45Southampton Eastleigh
20 Jul
SOU09:15Southampton Eastleigh
17h 52m
2 stops
PHL22:07Philadelphia
£891

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to Southampton 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 16 June 2026.
Use the filters below to find and compare flights from Philadelphia to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Tue 25/8

15:29-17:35

2 stops21h 06m

Southampton Eastleigh

Mon 7/9

17:20-16:17

2 stops27h 57m

£745

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Thu 27/8

13:15-08:45

2 stops14h 30m

Southampton Eastleigh

Thu 10/9

17:20-18:04

2 stops29h 44m

£782

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Thu 30/7

16:20-19:30

2 stops22h 10m

Southampton Eastleigh

Thu 6/8

20:00-15:41

2 stops24h 41m

£785
Fastest return journey

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 22/7

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Wed 29/7

09:20-18:55

1 stop14h 35m

£808

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Thu 30/7

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Thu 6/8

09:20-18:55

1 stop14h 35m

£809

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 13/7

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Mon 20/7

09:20-18:55

1 stop14h 35m

£809

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 22/7

05:40-08:45

2 stops22h 05m

Southampton Eastleigh

Wed 29/7

09:15-22:07

2 stops17h 52m

£816

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Thu 27/8

20:25-07:20

2 stops29h 55m

Southampton Eastleigh

Thu 10/9

09:20-18:55

1 stop14h 35m

£827

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Tue 25/8

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Mon 7/9

09:20-18:55

1 stop14h 35m

£879

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 13/7

20:25-19:30

1 stop18h 05m

Southampton Eastleigh

Mon 20/7

06:45-18:55

2 stops17h 10m

£888

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Philadelphia to Southampton

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 airline that flies from Philadelphia to Southampton Eastleigh?

Aer Lingus is the most popular carrier operating from Philadelphia to Southampton Eastleigh

Which airlines fly to Southampton?

Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to Southampton from Philadelphia according to our data. Virgin Atlantic is the first choice among our users, with 36% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 13 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from Philadelphia to Southampton

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

Cheap Philadelphia to Southampton (PHL to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Southampton

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from Philadelphia to Southampton takes 14h 30m
There are no direct flights from Philadelphia to Southampton. There are no popular flight routes from Philadelphia to Southampton.
Search flight deals

Frequently asked questions about flying from Philadelphia to Southampton

  • How far is Philadelphia to Southampton Eastleigh by plane?

    A flight from Philadelphia to Southampton Eastleigh will travel around 3499.1 mi. By plane, this route typically takes 14h 30m.

  • When did momondo last update prices for flights from Philadelphia Airport to Southampton Eastleigh Airport?

    Prices for flights from Philadelphia Airport to Southampton Eastleigh Airport are updated daily.

  • How old do you have to be to fly from Philadelphia Airport to Southampton Eastleigh 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 Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh 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 Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Southampton. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Southampton from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Philadelphia to Southampton flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Philadelphia to Southampton 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 Southampton 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
Thu 16/7
Thu 23/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom