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$629+ Cheap flights from Philadelphia (PHL) to Southampton (SOU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOU
Mar 27 — Apr 31
Fri 3/27
Fri 4/3
1 adult, Economy
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Cheap flight deals from Philadelphia to Southampton

Cheapest flights from Philadelphia to Southampton
Explore the most affordable flight options available from Philadelphia to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2026.

This KLM deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:33 pm
PHL
-
SOU
2 stops19h 27m
KLM
Thu 4/99:05 am
SOU
-
PHL
2 stops20h 52m
KLM
Deal found 2/21$784
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
PHL
-
SOU
2 stops21h 35m
Delta
Thu 4/169:05 am
SOU
-
PHL
2 stops20h 54m
Delta
Deal found 2/22$906
This KAYAK deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:50 pm
PHL
-
SOU
1 stop10h 05m
Multiple Airlines
Thu 4/98:00 pm
SOU
-
PHL
1 stop27h 55m
Multiple Airlines
Deal found 2/21$949
This Justfly.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:12 am
PHL
-
SOU
2 stops29h 18m
Aer Lingus
Mon 9/78:00 pm
SOU
-
PHL
1 stop27h 55m
Aer Lingus
Deal found 2/24$959
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am
PHL
-
SOU
2 stops21h 35m
Delta
Wed 10/79:05 am
SOU
-
PHL
2 stops20h 16m
Delta
Deal found 2/25$965
This BusinessClass deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:25 pm
PHL
-
SOU
1 stop18h 05m
Multiple Airlines
Thu 4/169:10 am
SOU
-
PHL
1 stop10h 50m
Multiple Airlines
Deal found 2/22$976
This Gurufare deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:50 pm
PHL
-
SOU
1 stop19h 40m
Multiple Airlines
Thu 9/108:00 pm
SOU
-
PHL
1 stop20h 45m
Multiple Airlines
Deal found 2/25$984
This oojo deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:20 am
PHL
-
SOU
2 stops25h 30m
Aer Lingus
Wed 10/79:10 am
SOU
-
PHL
1 stop14h 45m
Aer Lingus
Deal found 2/25$990
This oojo deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:50 am
PHL
-
SOU
2 stops27h 00m
Aer Lingus
Thu 4/169:10 am
SOU
-
PHL
1 stop10h 50m
Aer Lingus
Deal found 2/22$1,008

Find flight deals from Philadelphia to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$784
(KLM)

One-way from

$629
(KAYAK)

Popular in

June

Cheapest in

September

Average price

$753
Provider with most accurate pricing for Philadelphia-Southampton Eastleigh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Southampton Eastleigh flights.
Search Deals
From Philadelphia to Southampton Eastleigh
Search Deals
One-way flight from Philadelphia to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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, Cheapflights users made 2,558,603 searches. Data last updated February 25, 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

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/23

5:33 pm-5:00 pm

2 stops19h 27m

Southampton Eastleigh

Thu 4/9

9:05 am-12:57 am

2 stops20h 52m

$784

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Thu 4/9

6:00 am-8:35 am

2 stops21h 35m

Southampton Eastleigh

Thu 4/16

9:05 am-12:59 am

2 stops20h 54m

$906

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/23

9:50 pm-11:55 am

1 stop10h 05m

Southampton Eastleigh

Thu 4/9

8:00 pm-6:55 pm

1 stop27h 55m

$949

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/23

9:54 am-11:55 am

2 stops22h 01m

Southampton Eastleigh

Thu 4/9

8:00 pm-6:55 pm

1 stop27h 55m

$960

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 4/11

8:25 pm-8:40 am

1 stop31h 15m

Southampton Eastleigh

Sat 4/18

9:10 am-3:05 pm

1 stop10h 55m

$1,069

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 7/31

9:12 am-8:40 am

2 stops18h 28m

Southampton Eastleigh

Fri 8/7

9:10 am-4:10 pm

1 stop12h 00m

$1,125

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 6/27

10:34 pm-7:30 pm

2 stops39h 56m

Southampton Eastleigh

Fri 7/10

8:00 pm-6:46 pm

2 stops27h 46m

$1,252

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 6/27

8:25 pm-4:50 pm

1 stop15h 25m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Sorted by cheapest first

Compare providers for flights from Philadelphia to Southampton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Southampton in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Southampton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Southampton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Southampton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Southampton flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Southampton

What is the cheapest month to book a flight from Philadelphia to Southampton?

Currently, April is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $142). Flying from Philadelphia to Southampton in June is currently the most expensive (average of $531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Southampton?

    There are many flights that can get you from Philadelphia to Southampton in 19h 27m. Fly via KLM, Delta, or Aer Lingus to get the fastest option. The distance between Philadelphia and Southampton is about 3507 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Philadelphia to Southampton that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Southampton.

  • Can I find deals for business class flights from Philadelphia to Southampton?

    Yes. Cheapflights offers flight deals from Philadelphia to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Southampton?

    Currently, April is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $142). Flying from Philadelphia to Southampton in June is currently the most expensive (average of $531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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