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$408+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOU
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$854
(Delta)

One-way from

$408
(Ovago)

Popular in

June

Cheapest in

September

Average price

$672
Provider with most accurate pricing for Philadelphia-Southampton Eastleigh flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Southampton Eastleigh flights.
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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. 19% potential increase in price ($191 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 November 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 November 20, 2025.

This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:37 pmPHL - SOU
2 stops23h 23mDelta
Tue 12/98:40 amSOU - PHL
2 stops18h 00mDelta
Deal found 11/19$854
This Ovago deal was found by Cheapflights users on 11/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:30 pmPHL - SOU
1 stop10h 15mAer Lingus
Fri 11/289:30 amSOU - PHL
1 stop11h 30mAer Lingus
Deal found 11/18$1,031
This KLM deal was found by Cheapflights users on 11/17. 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.
Tue 11/1812:37 pmPHL - SOU
2 stops14h 33mKLM
Wed 11/195:30 pmSOU - PHL
2 stops28h 09mKLM
Deal found 11/17$1,060
This Ovago deal was found by Cheapflights users on 11/17. 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.
Tue 11/185:30 pmPHL - SOU
1 stop13h 25mAer Lingus
Wed 11/194:05 pmSOU - PHL
1 stop28h 55mAer Lingus
Deal found 11/17$1,164
This Ovago deal was found by Cheapflights users on 11/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:45 pmPHL - SOU
2 stops17h 45mMultiple Airlines
Fri 11/289:30 amSOU - PHL
2 stops27h 26mMultiple Airlines
Deal found 11/18$1,425
This British Airways deal was found by Cheapflights users on 11/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:30 pmPHL - SOU
1 stop10h 15mBritish Airways
Tue 12/92:35 pmSOU - PHL
2 stops30h 40mBritish Airways
Deal found 11/17$1,457
This KAYAK deal was found by Cheapflights users on 11/17. 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.
Sun 12/215:30 pmPHL - SOU
1 stop10h 15mAer Lingus
Wed 1/712:25 pmSOU - PHL
1 stop30h 40mAer Lingus
Deal found 11/17$1,537

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 November 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

Fri 12/5

12:37 pm-5:00 pm

2 stops23h 23m

Southampton Eastleigh

Tue 12/9

8:40 am-9:40 pm

2 stops18h 00m

$854

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 5/16

8:25 pm-8:40 am

2 stops31h 15m

Southampton Eastleigh

Sun 5/24

9:10 am-7:00 pm

1 stop14h 50m

$1,105

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Fri 12/5

5:30 pm-8:45 am

1 stop10h 15m

Southampton Eastleigh

Tue 12/9

2:35 pm-4:15 pm

2 stops30h 40m

$1,457

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Wed 4/29

8:30 pm-7:30 pm

1 stop18h 00m

Southampton Eastleigh

Mon 5/4

6:20 pm-4:40 pm

2 stops27h 20m

$1,468

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sun 12/21

5:30 pm-8:45 am

1 stop10h 15m

Southampton Eastleigh

Wed 1/7

12:25 pm-2:05 pm

1 stop30h 40m

$1,537

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 1/3

7:50 am-7:40 pm

3 stops30h 50m

Southampton Eastleigh

Sat 1/10

9:30 am-9:20 pm

3 stops40h 50m

$1,749

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 5/9

8:25 pm-8:40 am

2 stops31h 15m

$408

PhiladelphiaSouthampton

PHL - SOU

PHLSOU

Philadelphia

Sat 5/9

9:15 am-7:30 pm

3 stops29h 15m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Southampton flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, March is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $310). 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.

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 November 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 in the evening, which can drop the price by up to 30% 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 November 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
1,377 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.1

Crew

8.0

Boarding

7.4

Food

6.6

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
1,377 reviews
Aer Lingus
7.2
Good
1,377 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.1

Crew

8.0

Boarding

7.4

Food

6.6

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 23h 23m. 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, March is the cheapest month in which you can book a flight from Philadelphia to Southampton (average of $310). 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.

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

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