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$340+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap 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 August 20, 2025.

Round-trip from

$898
(Delta)

One-way from

$340
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$685
From Philadelphia to Southampton Eastleigh
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One-way flight from Philadelphia to Southampton Eastleigh
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Highest demand for flights based on searches. 18% potential increase in price ($185 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 20, 2025.

This Delta deal was found by Cheapflights users on 8/20. 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.
Wed 10/81:42 pmPHL - SOU
2 stops14h 03mDelta
Wed 10/229:20 amSOU - PHL
2 stops14h 54mDelta
Deal found 8/20$898
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:30 pmPHL - SOU
1 stop18h 00mAer Lingus
Wed 10/229:10 amSOU - PHL
2 stops36h 15mAer Lingus
Deal found 8/20$944
This Delta deal was found by Cheapflights users on 8/18. 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.
Fri 9/1910:45 amPHL - SOU
2 stops17h 00mDelta
Mon 9/225:35 pmSOU - PHL
2 stops30h 46mDelta
Deal found 8/18$988
This Delta deal was found by Cheapflights users on 8/18. 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.
Wed 9/171:35 pmPHL - SOU
2 stops14h 10mDelta
Mon 9/225:35 pmSOU - PHL
2 stops28h 45mDelta
Deal found 8/18$998
This Delta deal was found by Cheapflights users on 8/18. 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 9/186:25 pmPHL - SOU
2 stops17h 35mDelta
Thu 9/259:20 amSOU - PHL
2 stops15h 01mDelta
Deal found 8/18$1,058
This Ovago deal was found by Cheapflights users on 8/19. 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.
Fri 10/36:50 pmPHL - SOU
1 stop15h 55mMultiple Airlines
Fri 10/108:00 pmSOU - PHL
1 stop20h 45mMultiple Airlines
Deal found 8/19$1,084
This Mytrip deal was found by Cheapflights users on 8/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:35 pmPHL - SOU
3 stops34h 05mMultiple Airlines
Wed 10/229:00 amSOU - PHL
2 stops36h 00mMultiple Airlines
Deal found 8/20$1,091
This KLM deal was found by Cheapflights users on 8/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:00 pmPHL - SOU
2 stops13h 45mKLM
Sat 10/116:05 pmSOU - PHL
2 stops27h 55mKLM
Deal found 8/20$1,094
This Gurufare deal was found by Cheapflights users on 8/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:30 pmPHL - SOU
1 stop31h 40mAer Lingus
Sat 10/119:40 amSOU - PHL
1 stop14h 20mAer Lingus
Deal found 8/20$1,098

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 August 20, 2025.
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

Wed 10/8

1:42 pm-8:45 am

2 stops14h 03m

Southampton Eastleigh

Wed 10/22

9:20 am-7:14 pm

2 stops14h 54m

$898

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 10/8

8:30 pm-7:30 pm

1 stop18h 00m

Southampton Eastleigh

Wed 10/22

9:10 am-4:25 pm

2 stops36h 15m

$944

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 9/19

1:35 pm-8:45 am

2 stops14h 10m

Southampton Eastleigh

Thu 9/25

5:35 pm-6:24 pm

2 stops29h 49m

$988

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 9/19

10:45 am-8:45 am

2 stops17h 00m

Southampton Eastleigh

Mon 9/22

5:35 pm-7:21 pm

2 stops30h 46m

$988

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 9/19

10:45 am-8:45 am

2 stops17h 00m

Southampton Eastleigh

Wed 9/24

5:35 pm-4:38 pm

2 stops28h 03m

$988

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 9/19

6:00 am-8:45 am

2 stops21h 45m

Southampton Eastleigh

Tue 9/23

5:35 pm-4:10 pm

2 stops27h 35m

$988

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 9/17

6:00 am-8:45 am

2 stops21h 45m

Southampton Eastleigh

Wed 9/24

5:35 pm-4:38 pm

2 stops28h 03m

$998

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 9/17

1:35 pm-8:45 am

2 stops14h 10m

Southampton Eastleigh

Thu 9/25

9:20 am-7:21 pm

2 stops15h 01m

$998

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 9/17

1:35 pm-8:45 am

2 stops14h 10m

Southampton Eastleigh

Tue 9/23

9:20 am-7:21 pm

2 stops15h 01m

$998

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 9/17

1:35 pm-8:45 am

2 stops14h 10m

Southampton Eastleigh

Mon 9/22

5:35 pm-5:20 pm

2 stops28h 45m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 15 results
1
2

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, November is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $787). Flying from Philadelphia to Southampton in June is currently the most expensive (average of $1,308). 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.

What is the cheapest time of day to fly from PHL to SOU?

Find hourly flight availability from Philadelphia to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Philadelphia to Southampton, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 18% versus a flight in the morning.

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 August 20, 2025.
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
1,225 reviews

Boarding

7.3

Crew

8.0

Entertainment

6.9

Food

6.5

Overall

7.2

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
Aer Lingus
7.2
Good
1,225 reviews
Aer Lingus
7.2
Good
1,225 reviews

Boarding

7.3

Crew

8.0

Entertainment

6.9

Food

6.5

Overall

7.2

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.

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 14h 03m. Fly via 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.

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

    According to our current data, Aer Lingus ($880), 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, November is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $787). Flying from Philadelphia to Southampton in June is currently the most expensive (average of $1,308). 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

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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$880Average$1,148FlexibilityNo cancel feeOn-timeN/A

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