PHL - SOU

$717 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 8/6. 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

Wed, Aug 6 - Wed, Aug 20
Aer Lingus Logo
8:30 pm - 4:35 pmPHL-SOU
15h 05m1 stop
Aer Lingus Logo
9:10 am - 7:00 pmSOU-PHL
14h 50m1 stop
$717Aer Lingus
Find Deal
Wed, Aug 6 - Wed, Aug 20
KLM Logo
12:02 pm - 8:45 amPHL-SOU
15h 43m2 stops
KLM Logo
9:20 am - 12:56 amSOU-PHL
20h 36m2 stops
$894KLM
Find Deal
Wed, Aug 6 - Wed, Aug 20
Aer Lingus Logo
10:25 am - 8:40 amPHL-SOU
17h 15m2 stops
Aer Lingus Logo
9:10 am - 7:00 pmSOU-PHL
14h 50m1 stop
$921Aer Lingus
Find Deal
Wed, Jul 30 - Wed, Aug 6
Aer Lingus Logo
10:15 am - 8:40 amPHL-SOU
17h 25m2 stops
Aer Lingus Logo
9:10 am - 7:00 pmSOU-PHL
14h 50m1 stop
$925Aer Lingus
Find Deal
Wed, Jul 30 - Wed, Aug 6
KLM Logo
12:02 pm - 8:45 amPHL-SOU
15h 43m2 stops
KLM Logo
9:20 am - 9:34 pmSOU-PHL
17h 14m2 stops
$944KLM
Find Deal
Wed, Jul 30 - Wed, Aug 6
Aer Lingus Logo
6:45 pm - 7:30 pmPHL-SOU
19h 45m1 stop
Aer Lingus Logo
8:00 pm - 11:55 amSOU-PHL
20h 55m1 stop
$1,044Aer Lingus
Find Deal
Sat, Jul 19 - Sat, Jul 26
Aer Lingus Logo
9:25 pm - 9:10 amPHL-SOU
30h 45m2 stops
Aer Lingus Logo
9:40 am - 11:45 amSOU-PHL
31h 05m1 stop
$1,225Aer Lingus
Find Deal
Fri, Jul 18 - Sat, Jul 26
Aer Lingus Logo
10:15 am - 8:40 amPHL-SOU
17h 25m2 stops
Aer Lingus Logo
9:40 am - 7:00 pmSOU-PHL
14h 20m1 stop
$1,286Aer Lingus
Find Deal
Fri, Aug 15 - Fri, Aug 22
British Airways Logo
6:35 pm - 3:25 pmPHL-SOU
15h 50m2 stops
British Airways Logo
9:40 am - 7:00 pmSOU-PHL
14h 20m1 stop
$1,943British Airways
Find Deal
Fri, Aug 15 - Sat, Aug 23
British Airways Logo
6:35 pm - 3:25 pmPHL-SOU
15h 50m2 stops
British Airways Logo
9:40 am - 7:00 pmSOU-PHL
14h 20m1 stop
$1,993British Airways
Find Deal
Useful Info

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 ($717) and KLM ($894).

Good to know

Cheapest flight$717
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 $952 for a one-way ticket and $717 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.

  • Which is the best airline for flights from Philadelphia to Southampton, Aer Lingus or British Airways?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Southampton are Aer Lingus and British Airways. With an average price for the route of $1,051 and an overall rating of 7.1, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,054 and an overall rating of 6.6.

  • 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 airlines 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 1118 reviews
7.2Boarding
7.0Comfort
6.8Entertainment
7.9Crew
6.4Food
Airline reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

4.0 OkayLeo, May 2025DUB - LHR
Read more Aer Lingus reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

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

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