PHL - SOU

$917 Find Cheap Flights from Philadelphia to Southampton

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Southampton departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Southampton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Southampton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Southampton, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Philadelphia to Southampton (PHL-SOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Southampton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Southampton

Wed, Nov 19 - Fri, Nov 28
Aer Lingus Logo
5:30 pm - 8:45 amPHL-SOU
10h 15m1 stop
Aer Lingus Logo
9:30 am - 4:00 pmSOU-PHL
11h 30m1 stop
$917Aer Lingus
Find Deal
Wed, Nov 19 - Fri, Nov 28
Aer Lingus Logo
9:22 am - 8:45 amPHL-SOU
18h 23m2 stops
Aer Lingus Logo
9:30 am - 4:00 pmSOU-PHL
11h 30m1 stop
$921Aer Lingus
Find Deal
Wed, Nov 19 - Fri, Nov 28
Aer Lingus Logo
9:22 am - 8:45 amPHL-SOU
18h 23m2 stops
Aer Lingus Logo
9:30 am - 4:00 pmSOU-PHL
11h 30m1 stop
$922Aer Lingus
Find Deal
Sat, Oct 25 - Sat, Nov 1
KLM Logo
5:06 pm - 6:25 pmPHL-SOU
20h 19m2 stops
KLM Logo
9:25 am - 10:30 amSOU-PHL
29h 05m2 stops
$1,057KLM
Find Deal
Tue, Mar 3 - Fri, Mar 6
Delta Logo
7:20 pm - 5:00 pmPHL-SOU
16h 40m2 stops
Delta Logo
8:40 am - 12:22 amSOU-PHL
20h 42m2 stops
$1,194Delta
Find Deal
Tue, Mar 3 - Fri, Mar 6
Delta Logo
6:10 pm - 5:00 pmPHL-SOU
17h 50m2 stops
Delta Logo
8:40 am - 10:56 pmSOU-PHL
19h 16m2 stops
$1,195Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
British Airways Logo
5:30 pm - 8:45 amPHL-SOU
10h 15m1 stop
British Airways Logo
6:25 pm - 1:10 pmSOU-PHL
23h 45m3 stops
$1,410British Airways
Find Deal
Tue, Mar 3 - Fri, Mar 6
British Airways Logo
5:30 pm - 11:55 amPHL-SOU
13h 25m1 stop
British Airways Logo
12:15 pm - 4:15 pmSOU-PHL
33h 00m2 stops
$1,468British Airways
Find Deal
Sat, Oct 25 - Sat, Nov 1
 Logo
5:20 am - 9:45 amPHL-SOU
23h 25m3 stops
 Logo
1:55 pm - 5:00 pmSOU-PHL
31h 05m2 stops
$1,489
Find Deal
Sat, Oct 25 - Sat, Nov 1
 Logo
5:20 am - 9:45 amPHL-SOU
23h 25m3 stops
 Logo
9:30 am - 4:54 pmSOU-PHL
35h 24m3 stops
$1,583
Find Deal

Everything you should know

Top airlines
Aer Lingus
Cheapest • from $917 (round-trip)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$917
Aer Lingus
Wed 11/19Fri 11/28
PHL - SOU • 1 stop
Cheapest one-way
$2,806
Multiple Airlines
Thu 12/11
PHL - SOU • 3 stops
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Booking Insights

KAYAK's insights & trends for Philadelphia to Southampton flights

Get data-powered insights and trends into flights from Philadelphia to Southampton to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Philadelphia to Southampton?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Philadelphia to Southampton were found on Aer Lingus ($917) and KLM ($1,057).

Good to know

Cheapest flight$917
Flight from Philadelphia to Southampton

When to book flights from Philadelphia to Southampton

Are your dates flexible? Find out the best times to travel from Philadelphia to Southampton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Southampton

  • What is the cheapest flight from Philadelphia to Southampton?

    In the last 3 days, the lowest price for a flight from Philadelphia to Southampton was $2,806 for a one-way ticket and $917 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Southampton?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Philadelphia and on arrival in Southampton.

  • Which airports will I be using when flying from Philadelphia to Southampton?

    Philadelphia and Southampton are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Southampton Eastleigh.

  • Which aircraft models fly most regularly from Philadelphia to Southampton?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Southampton?

    SkyTeam, and oneworld are the airline alliances operating flights between Philadelphia and Southampton, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Philadelphia to Southampton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Southampton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Southampton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Southampton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Southampton with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SOU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Southampton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Southampton from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Philadelphia to Southampton

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Southampton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Southampton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1271 reviews
7.3Boarding
6.9Entertainment
7.1Comfort
6.5Food
8.0Crew
Airline reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

6.0 GoodAnonymous, Sep 2025IND - DUB
Read more Aer Lingus reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

Overall it was good experience and it was my first trip with Aer Lingus. One thing I was embarrassed was that someone occupied my seat so I was asked to use another seat. Due to this unhappy happening I almost missed the connecting flight because the random seat was far from the flight door. Food was fine, I liked the macaroni and cheese with fresh bread.

I was very disappointed that the online sys allowed me to get the boarding pass for the second leg of the trip, when I clearly request it for both flights!

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

Information on your arrival and departure airports

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