PHL - SOU

$743 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 9/14. 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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Flights 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

dim., sept. 14 - lun., sept. 22
 Logo
3:25 pm - 7:30 pmPHL-SOU
23h 05m2 stops
 Logo
8:00 pm - 9:38 pmSOU-PHL
30h 38m2 stops
dim., sept. 14 - lun., sept. 22
 Logo
10:35 am - 7:30 pmPHL-SOU
27h 55m3 stops
 Logo
8:00 pm - 2:38 pmSOU-PHL
23h 38m2 stops
sam., sept. 13 - mar., sept. 23
Delta Logo
6:00 am - 8:45 amPHL-SOU
21h 45m2 stops
Delta Logo
9:20 am - 11:55 pmSOU-PHL
19h 35m2 stops
$946Delta
Find Deal
dim., sept. 14 - lun., sept. 22
Aer Lingus Logo
8:30 pm - 8:15 amPHL-SOU
30h 45m1 stop
Aer Lingus Logo
8:00 pm - 7:00 pmSOU-PHL
28h 00m1 stop
$957Aer Lingus
Find Deal
dim., sept. 14 - lun., sept. 22
Aer Lingus Logo
7:00 am - 9:10 amPHL-SOU
21h 10m2 stops
Aer Lingus Logo
8:00 pm - 7:00 pmSOU-PHL
28h 00m1 stop
$974Aer Lingus
Find Deal
sam., sept. 13 - mar., sept. 23
Aer Lingus Logo
8:30 pm - 9:10 amPHL-SOU
31h 40m1 stop
Aer Lingus Logo
9:10 am - 7:00 pmSOU-PHL
14h 50m1 stop
$1,021Aer Lingus
Find Deal
sam., sept. 13 - mar., sept. 23
Aer Lingus Logo
10:20 am - 9:10 amPHL-SOU
41h 50m2 stops
Aer Lingus Logo
9:10 am - 7:00 pmSOU-PHL
14h 50m1 stop
$1,025Aer Lingus
Find Deal
sam., janv. 3 - mar., févr. 3
Aer Lingus Logo
6:35 pm - 7:40 pmPHL-SOU
20h 05m2 stops
Aer Lingus Logo
8:10 pm - 6:32 pmSOU-PHL
27h 22m2 stops
$1,027Aer Lingus
Find Deal
sam., oct. 18 - lun., oct. 20
British Airways Logo
6:30 pm - 3:25 pmPHL-SOU
15h 55m2 stops
British Airways Logo
9:40 am - 7:00 pmSOU-PHL
14h 20m1 stop
$1,800British Airways
Find Deal
mer., sept. 10 - jeu., sept. 18
British Airways Logo
7:20 pm - 4:00 pmPHL-SOU
15h 40m1 stop
British Airways Logo
9:40 am - 7:00 pmSOU-PHL
14h 20m1 stop
$1,904British Airways
Find Deal
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 Delta ($946) and Aer Lingus ($957).

Good to know

Cheapest flight$743
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 $743 for a round-trip ticket.

  • 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.
7.1
Aer LingusOverall score based on 1168 reviews
8.0Crew
7.0Comfort
6.4Food
7.2Boarding
6.8Entertainment
Airline reviews

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

2.0 MediocreAnonymous, Jul 2025LHR - DUB
Read more Aer Lingus reviews

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

Charging for coffee on a business class fare??? And to not even mention it? Inexcusable. Boarding and disembarking was pathetic. Could not use a jetway on either end. Had to use stairs and walk across tarmac at origination and use stairs and be bussed to terminal at destination.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

No entertained. food and beverages were not complimentary. they lost my checked luggage which made my 10 day vacation unpleasant.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

It was fine. We were delayed leaving but a situation of too many planes, not the airlines fault.

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

Information on your arrival and departure airports

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