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Cheap flights from London to Killarney from £21

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ORK
6 12月 — 13 12月1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Killarney are usually found in January or February, booked 28 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from London to Killarney

Keep the following information in mind while searching for London to Killarney flight deals. Data was last updated 6 11月 2025.

Round-trip from

£45

One-way from

£21

Popular in

April

Cheapest in

January

Average price

£68
Ryanair
  • Ryanair
  • 13/2-15/2
  • Nonstop
  • 2h 40m total
  • London to Killarney
Search Deals
Ryanair
  • Ryanair
  • 3/1
  • Nonstop
  • 1h 30m total
  • London to Killarney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from London to Killarney

Enter your travel dates to find the best prices.

Cheapest flights from London to Killarney
Explore the most affordable flight options available from London to Killarney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 11月 2025.

週二 11/1111:55STN - KIR
Nonstop1h 30mRyanair
週五 14/1115:30KIR - STN
Nonstop1h 30mRyanair
Deal found 5/11£29
週二 11/1114:20LTN - KIR
Nonstop1h 20mRyanair
週五 14/1118:00KIR - LTN
Nonstop1h 20mRyanair
Deal found 5/11£35
週四 11/1208:55LTN - KIR
Nonstop1h 20mRyanair
週一 15/1213:40KIR - LTN
Nonstop1h 20mRyanair
Deal found 5/11£51
週六 13/1212:35LTN - KIR
Nonstop1h 20mRyanair
週一 15/1213:40KIR - LTN
Nonstop1h 20mRyanair
Deal found 5/11£53
週四 18/1208:55LTN - KIR
Nonstop1h 20mRyanair
週二 23/1216:05KIR - LTN
Nonstop1h 20mRyanair
Deal found 4/11£64
週六 13/1209:00STN - KIR
Nonstop1h 30mRyanair
週一 15/1217:25KIR - STN
1 stop5h 35mRyanair
Deal found 5/11£70
週五 7/1109:10LTN - KIR
Nonstop1h 20mRyanair
週二 11/1116:05KIR - LTN
Nonstop1h 20mRyanair
Deal found 5/11£72
週四 18/1206:00STN - KIR
1 stop4h 00mRyanair
週二 23/1213:50KIR - STN
Nonstop1h 30mRyanair
Deal found 4/11£77
週四 20/1108:55LTN - KIR
Nonstop1h 20mRyanair
週日 23/1110:25KIR - LTN
1 stop22h 30mRyanair
Deal found 4/11£95
週四 11/1206:30STN - KIR
1 stop3h 30mRyanair
週一 15/1217:25KIR - STN
1 stop5h 35mRyanair
Deal found 4/11£97
週四 11/1221:40LGW - KIR
1 stop12h 20mRyanair
週一 15/1217:25KIR - LGW
1 stop3h 30mRyanair
Deal found 5/11£102
週六 13/1222:30LGW - KIR
1 stop11h 30mRyanair
週一 15/1210:25KIR - LGW
1 stop7h 00mRyanair
Deal found 4/11£108

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Killarney 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 6 11月 2025.
Use the filters below to find and compare flights from London to Killarney that are best for you.

Fly from

London

Fly to

Killarney

Route

Depart

Return

Price

LondonMilltown (Kerry)

LTN - KIR

LTNKIR

London Luton

週四 11/12

08:55-10:15

Nonstop1h 20m

Milltown (Kerry)

週一 15/12

13:40-15:00

Nonstop1h 20m

£51

LondonMilltown (Kerry)

LTN - KIR

LTNKIR

London Luton

週四 18/12

08:55-10:15

Nonstop1h 20m

Milltown (Kerry)

週二 23/12

16:05-17:25

Nonstop1h 20m

£64

LondonMilltown (Kerry)

STN - KIR

STNKIR

London Stansted

週六 13/12

09:00-10:30

Nonstop1h 30m

Milltown (Kerry)

週一 15/12

17:25-23:00

1 stop5h 35m

£70

LondonMilltown (Kerry)

STN - KIR

STNKIR

London Stansted

週四 18/12

06:00-10:00

1 stop4h 00m

Milltown (Kerry)

週二 23/12

13:50-15:20

Nonstop1h 30m

£77

LondonMilltown (Kerry)

LTN - KIR

LTNKIR

London Luton

週六 13/12

12:35-13:55

Nonstop1h 20m

Milltown (Kerry)

週一 15/12

17:25-22:00

1 stop4h 35m

£77

LondonMilltown (Kerry)

LTN - KIR

LTNKIR

London Luton

週四 20/11

08:55-10:15

Nonstop1h 20m

Milltown (Kerry)

週日 23/11

10:25-08:55

1 stop22h 30m

£95

LondonMilltown (Kerry)

STN - KIR

STNKIR

London Stansted

週四 11/12

06:30-10:00

1 stop3h 30m

Milltown (Kerry)

週一 15/12

17:25-23:00

1 stop5h 35m

£97

LondonMilltown (Kerry)

LGW - KIR

LGWKIR

London Gatwick

週四 11/12

21:40-10:00

1 stop12h 20m

Milltown (Kerry)

週一 15/12

17:25-20:55

1 stop3h 30m

£102

LondonMilltown (Kerry)

LGW - KIR

LGWKIR

London Gatwick

週六 13/12

22:30-10:00

1 stop11h 30m

Milltown (Kerry)

週一 15/12

10:25-17:25

1 stop7h 00m

£108

LondonMilltown (Kerry)

STN - KIR

STNKIR

London Stansted

週六 13/12

13:30-17:10

1 stop3h 40m

Milltown (Kerry)

週一 15/12

17:25-21:20

1 stop3h 55m

£109

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 50 results
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Best time to book a flight from London to Killarney

Have a flexible travel schedule? Discover the best time to fly to Killarney from London 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 London to Killarney

How far ahead should I book a flight from London to Killarney?

Use this chart to determine the optimal time to book a return flight from London to Killarney. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from London to Killarney, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London to Killarney?

Currently, January is the cheapest month in which you can book a flight from London to Killarney (average of £20). Flying from London to Killarney in August is currently the most expensive (average of £34). 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 LON to K1R?

Find hourly flight availability from London to Killarney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 11月 2025.

It’s optimal to fly from London to Killarney in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London to Killarney?

Use this chart to determine the cheapest time to fly return from London to Killarney. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Killarney flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Killarney

Explore weekly flight availability from London to Killarney. 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 6 11月 2025.

The most flights from LON to K1R are scheduled on a Monday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost for a return flight from London to Killarney?

Reviews of airlines servicing Killarney

Get insights into the airlines that provide service to Killarney. 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 Killarney. Reviews last updated 6 11月 2025.
Read through reviews of airlines operating flights from London to Killarney, such as Ryanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.8
Okay
5,186 reviews
Check prices

Entertainment

5.6

Boarding

6.7

Overall

6.8

Crew

7.5

Food

6.0

Comfort

6.5

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight
Ryanair
6.8
Okay
5,186 reviews
Ryanair
6.8
Okay
5,186 reviews
Check prices

Entertainment

5.6

Boarding

6.7

Overall

6.8

Crew

7.5

Food

6.0

Comfort

6.5

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight

Related info for your journey

Find useful and relevant information for your journey from London to Killarney. 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 London to Killarney?

    There are many flights that can get you from London to Killarney in 1h 20m. Fly via Ryanair to get the fastest option. There are 389 mi between London and Killarney. All flights are typically direct.

  • What are the most popular routes from London to Killarney?

    The most popular flight routes from London to Killarney are London Luton - Milltown (Kerry), London Gatwick - Milltown (Kerry) and London Stansted - Milltown (Kerry).

  • What are the most reliable airlines from London to Killarney?

    Before booking your flight to Killarney from London, check out the most reliable airlines to get you to your destination on time: British Airways (84%), Qatar Airways (84%), Aer Lingus( 84%).

  • What are the cheapest flights from London to Killarney?

    Looking for the cheapest flight from London to Killarney? While on average our users pay £137, our data indicates the cheapest price to be £84. The most popular route (London Luton - Milltown (Kerry)), is priced around £45.

  • Can I find deals for flights from London to Killarney that include hotel bookings?

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

  • How can I find direct flights from London to Killarney?

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

  • Can I find deals for business class flights from London to Killarney?

    Yes. Cheapflights offers flight deals from London to Killarney 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 London to Killarney?

    Currently, January is the cheapest month in which you can book a flight from London to Killarney (average of £20). Flying from London to Killarney in August is currently the most expensive (average of £34). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from London to Killarney

Discover the top 3 airlines that operate flights from London to Killarney. 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 6 11月 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£27Average£81FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£85Average£148FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£196Average£260FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Killarney?

Cheapflights makes it easy to find London to Killarney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Killarney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Killarney from London.

Can Cheapflights find flights from London to Killarney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Killarney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Killarney become cheaper?

Yes! Start tracking prices for London to Killarney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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