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Cheap flights from Southampton to Kilkenny from £51

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DUB
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Southampton Eastleigh to Kilkenny are usually found in February or January, booked 49 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Southampton to Kilkenny

Keep the following information in mind while searching for Southampton to Kilkenny flight deals. Data was last updated 16 January 2026.

Round-trip from

£98

One-way from

£51

Popular in

June

Cheapest in

February

Average price

£123
Aer Lingus
  • Aer Lingus
  • 11/2-18/2
  • Nonstop
  • 3h 20m total
  • Southampton to Kilkenny
Search Deals
Aer Lingus
  • Aer Lingus
  • 21/1
  • Nonstop
  • 1h 35m total
  • Southampton to Kilkenny
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Southampton to Kilkenny

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Kilkenny
Explore the most affordable flight options available from Southampton to Kilkenny. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2026.

Wed 11/212:25
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Wed 18/210:10
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 14/1£98
Thu 5/220:10
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Mon 9/207:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 15/1£105
Wed 4/309:25
SOU
-
DUB
1 stop12h 20m
Multiple Airlines
Wed 11/313:55
DUB
-
SOU
Nonstop1h 40m
Multiple Airlines
Deal found 15/1£106
Thu 12/220:10
SOU
-
DUB
Nonstop1h 40m
Multiple Airlines
Mon 16/218:25
DUB
-
SOU
1 stop14h 25m
Multiple Airlines
Deal found 13/1£109
Wed 4/212:25
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Tue 10/213:55
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 15/1£110
Tue 27/112:25
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Thu 29/107:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 14/1£112
Sat 31/109:30
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Sun 1/207:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 13/1£113
Sun 1/320:10
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Sun 8/307:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 14/1£113
Sat 28/215:20
SOU
-
DUB
1 stop16h 25m
Multiple Airlines
Sat 7/307:00
DUB
-
SOU
Nonstop1h 45m
Multiple Airlines
Deal found 14/1£115
Sun 8/216:05
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Mon 9/207:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 15/1£116
Fri 30/120:10
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Mon 2/207:00
DUB
-
SOU
Nonstop1h 45m
Aer Lingus
Deal found 13/1£117

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Kilkenny 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 858,174 searches. Data last updated 16 January 2026.
Use the filters below to find and compare flights from Southampton to Kilkenny that are best for you.

Fly from

Southampton

Fly to

Kilkenny

Route

Depart

Return

Price

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Wed 4/3

16:05-17:40

Nonstop1h 35m

Dublin

Wed 11/3

13:55-15:35

Nonstop1h 40m

£109

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 5/2

20:10-21:50

Nonstop1h 40m

Dublin

Mon 9/2

07:00-08:45

Nonstop1h 45m

£112

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Tue 17/3

09:20-08:45

1 stop23h 25m

Dublin

Fri 20/3

07:00-08:45

Nonstop1h 45m

£113

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Sat 28/2

15:20-07:45

1 stop16h 25m

Dublin

Sat 7/3

07:00-08:45

Nonstop1h 45m

£115

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Sun 8/2

20:10-21:50

Nonstop1h 40m

Dublin

Mon 9/2

19:05-08:50

1 stop13h 45m

£130

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 30/1

14:25-16:55

1 stop26h 30m

Dublin

Mon 2/2

07:00-08:45

Nonstop1h 45m

£130

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Sun 1/3

18:20-09:20

1 stop15h 00m

Dublin

Sun 8/3

07:00-08:45

Nonstop1h 45m

£130

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 19/2

17:35-22:10

1 stop4h 35m

Dublin

Sun 22/2

07:00-08:45

Nonstop1h 45m

£139

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 5/2

17:55-22:25

1 stop4h 30m

Dublin

Mon 9/2

13:10-17:15

1 stop4h 05m

£146

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 30/1

17:35-22:10

1 stop4h 35m

Dublin

Tue 3/2

08:50-17:05

1 stop8h 15m

£157

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 21 results
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2
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Best time to book a flight from Southampton to Kilkenny

Have a flexible travel schedule? Discover the best time to fly to Kilkenny from Southampton with our price prediction graph.
Estimated return 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 Southampton to Kilkenny

How far ahead should I book a flight from Southampton to Kilkenny?

Use this chart to determine the optimal time to book a return flight from Southampton to Kilkenny. Price data was last updated on 9 January 2026.

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Southampton to Kilkenny. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Southampton to Kilkenny?

Currently, February is the cheapest month in which you can book a flight from Southampton to Kilkenny (average of £19). Flying from Southampton to Kilkenny in December is currently the most expensive (average of £32). 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 SOU to K1L?

Find hourly flight availability from Southampton to Kilkenny. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Kilkenny as you normally would.

Weekly flight availability from Southampton to Kilkenny

Explore weekly flight availability from Southampton to Kilkenny. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 January 2026.

The most flights from SOU to K1L are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Kilkenny

Get insights into the airlines that provide service to Kilkenny. 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 Kilkenny. Reviews last updated 16 January 2026.
Read reviews from past customers who have flown with KLM, Aer Lingus, andRyanair from Southampton to Kilkenny. 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.
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,440 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,435 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Ryanair
6.9
Okay
5,244 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,681 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Kilkenny. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Southampton to Kilkenny?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Kilkenny. 4 airlines have flights from Eastleigh to Kilkenny on a regular basis. Booking flights from Southampton Eastleigh to Kilkenny should not be difficult; the airport handles an average of 5 outbound flights to Kilkenny per day.

  • How popular is this Southampton to Kilkenny flight route?

    This flight path from Southampton Eastleigh to Kilkenny was viewed by 1,382 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Southampton to Kilkenny?

    Departing from Southampton to Kilkenny will take you 1h 35m. The distance between Southampton and Kilkenny is about 268 mi. All flights are typically direct.

  • What are the most reliable airlines from Southampton to Kilkenny?

    The top 3 most reliable airlines when flying from Southampton to Kilkenny are Qatar Airways (85%), Aer Lingus (78%) and Emerald Airlines (78%).

  • What are the cheapest flights from Southampton to Kilkenny?

    Looking for the cheapest flight from Southampton to Kilkenny? While on average our users pay £122, our data indicates the cheapest price to be £50. The most popular route (Southampton Eastleigh - Dublin), is priced around £105.

  • Can I find deals for flights from Southampton to Kilkenny that include hotel bookings?

    Yes. In addition to deals on Southampton to Kilkenny flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southampton to Kilkenny?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Kilkenny.

  • Can I find deals for business class flights from Southampton to Kilkenny?

    Yes. Cheapflights offers flight deals from Southampton to Kilkenny 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 Southampton to Kilkenny?

    Currently, February is the cheapest month in which you can book a flight from Southampton to Kilkenny (average of £19). Flying from Southampton to Kilkenny in December is currently the most expensive (average of £32). 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 Southampton to Kilkenny

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Southampton to Kilkenny

Discover the top 4 airlines that operate flights from Southampton to Kilkenny. 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 858,174 searches. Data last updated 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£33Average£52FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£84Average£214FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£86Average£140FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£126Average£145FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Kilkenny?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southampton to Kilkenny. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Kilkenny?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southampton to Kilkenny for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southampton to Kilkenny with no change fees?

Certainly. Search results for flights to Kilkenny from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Southampton to Kilkenny become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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