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$548+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOU
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 January 21, 2026.

This Delta deal was found by Cheapflights users on 1/20. 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.
Sun 3/155:33 pm
PHL
-
SOU
2 stops34h 47m
Delta
Tue 3/248:50 am
SOU
-
PHL
2 stops28h 32m
Delta
Deal found 1/20$766
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 3/178:29 pm
PHL
-
SOU
2 stops40h 56m
Delta
Mon 3/235:40 pm
SOU
-
PHL
2 stops33h 20m
Delta
Deal found 1/20$772
This Delta deal was found by Cheapflights users on 1/20. 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 3/196:00 am
PHL
-
SOU
2 stops22h 20m
Delta
Mon 3/235:40 pm
SOU
-
PHL
2 stops31h 43m
Delta
Deal found 1/20$816
This KAYAK deal was found by Cheapflights users on 1/20. 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.
Tue 8/258:25 pm
PHL
-
SOU
1 stop18h 05m
Aer Lingus
Mon 9/78:00 pm
SOU
-
PHL
1 stop27h 55m
Aer Lingus
Deal found 1/20$897
This Gurufare deal was found by Cheapflights users on 1/19. 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.
Thu 3/55:30 pm
PHL
-
SOU
1 stop10h 15m
Multiple Airlines
Thu 3/129:30 am
SOU
-
PHL
2 stops17h 01m
Multiple Airlines
Deal found 1/19$918
This Ovago deal was found by Cheapflights users on 1/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:00 am
PHL
-
SOU
2 stops21h 45m
Aer Lingus
Thu 3/129:30 am
SOU
-
PHL
2 stops28h 09m
Aer Lingus
Deal found 1/19$939

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$766
(Delta)

One-way from

$548
(KAYAK)

Popular in

June

Cheapest in

September

Average price

$709
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 ($193 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 21, 2026.
Use the filters below to find and compare flights from Philadelphia to Southampton that are best for you.

Fly from

Philadelphia

Fly to

Southampton

Route

Depart

Return

Price

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/16

8:40 am-8:20 am

2 stops19h 40m

Southampton Eastleigh

Wed 3/25

5:35 pm-12:57 am

2 stops35h 22m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/16

6:59 am-8:20 am

2 stops21h 21m

Southampton Eastleigh

Tue 3/24

8:50 am-9:22 am

2 stops28h 32m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 3/15

5:33 pm-8:20 am

2 stops34h 47m

Southampton Eastleigh

Mon 3/23

5:40 pm-11:00 pm

2 stops33h 20m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 3/15

5:33 pm-8:20 am

2 stops34h 47m

Southampton Eastleigh

Tue 3/24

8:50 am-9:22 am

2 stops28h 32m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Mon 3/16

10:28 am-8:20 am

2 stops17h 52m

Southampton Eastleigh

Mon 3/23

5:40 pm-9:23 pm

2 stops31h 43m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 3/18

7:36 pm-5:25 pm

2 stops17h 49m

Southampton Eastleigh

Tue 3/24

8:50 am-9:22 am

2 stops28h 32m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 3/18

5:00 pm-5:25 pm

2 stops20h 25m

Southampton Eastleigh

Mon 3/23

5:40 pm-9:23 pm

2 stops31h 43m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 3/15

5:33 pm-8:20 am

2 stops34h 47m

Southampton Eastleigh

Wed 3/25

5:35 pm-12:57 am

2 stops35h 22m

$766

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Tue 3/17

8:29 pm-5:25 pm

2 stops40h 56m

Southampton Eastleigh

Wed 3/25

8:50 am-11:42 am

2 stops30h 52m

$772

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Tue 3/17

8:29 pm-5:25 pm

2 stops40h 56m

Southampton Eastleigh

Tue 3/24

8:50 am-9:22 am

2 stops28h 32m

$772

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 13 results
1
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 Expedia the most. Expedia 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 $534). 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.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated January 21, 2026.
Read reviews from past customers who have flown Aer Lingus from Philadelphia to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,440 reviews

Crew

8.0

Comfort

7.1

Boarding

7.4

Overall

7.2

Entertainment

6.9

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,440 reviews
Aer Lingus
7.2
Good
1,440 reviews

Crew

8.0

Comfort

7.1

Boarding

7.4

Overall

7.2

Entertainment

6.9

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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 40m. Fly via Delta to get the fastest option. The distance between Philadelphia and Southampton is about 3507 mi.

  • What is the cheapest airline to fly from Philadelphia to Southampton round-trip?

    According to our current data, Aer Lingus ($969), offers the cheapest pricing from Philadelphia to Southampton.

  • 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 $534). 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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Alternative routes for Philadelphia to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Philadelphia to Southampton

Discover the top airline that operate flights from Philadelphia to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$969Average$1,157FlexibilityNo cancel feeOn-timeN/A

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