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Cheap flights from London to Killarney from £16

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ORK
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Killarney are usually found in January or March, booked 40 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap 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 15 August 2026.

Sun 6/915:50 -
Nonstop1h 30m
Wed 9/916:00 -
Nonstop1h 30m
Deal found 11/8£28
Sun 30/815:50 -
Nonstop1h 30m
Thu 3/917:20 -
Nonstop1h 30m
Deal found 10/8£30
Mon 14/908:30 -
Nonstop1h 30m
Thu 17/917:20 -
Nonstop1h 30m
Deal found 10/8£30
Tue 8/909:00 -
Nonstop1h 30m
Tue 15/910:55 -
Nonstop1h 30m
Deal found 11/8£31
Fri 4/908:35 -
Nonstop1h 25m
Tue 8/914:40 -
Nonstop1h 25m
Deal found 11/8£32
Fri 11/913:05 -
Nonstop1h 30m
Tue 15/910:55 -
Nonstop1h 30m
Deal found 11/8£33
Wed 2/914:05 -
Nonstop1h 30m
Fri 4/915:00 -
Nonstop1h 30m
Deal found 14/8£33
Wed 2/915:55 -
Nonstop1h 25m
Wed 9/917:45 -
Nonstop1h 25m
Deal found 10/8£33
Thu 10/915:25 -
Nonstop1h 30m
Thu 17/917:20 -
Nonstop1h 30m
Deal found 13/8£34
Fri 11/908:35 -
Nonstop1h 25m
Tue 15/914:40 -
Nonstop1h 25m
Deal found 11/8£34
Fri 16/1013:05 -
Nonstop1h 30m
Sun 18/1017:45 -
Nonstop1h 30m
Deal found 11/8£36
Thu 27/813:05 -
Nonstop1h 25m
Fri 4/910:25 -
Nonstop1h 25m
Deal found 11/8£36

Find flight deals from London to Killarney

Keep the following information in mind while searching for London to Killarney flight deals. Data was last updated 15 August 2026.

Round-trip from

£28

One-way from

£16

Popular in

August

Cheapest in

January

Average price

£100
Ryanair
  • Ryanair
  • 6/9-9/9
  • Nonstop
  • 3h 00m total
  • London to Killarney
Search Deals
Ryanair
  • Ryanair
  • 12/10
  • Nonstop
  • 1h 30m total
  • London to Killarney
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£11 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 August 2026
Search Deals

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 15 August 2026.
Use the filters below to find and compare flights from London to Killarney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMilltown (Kerry)

STN London Stansted - KIR Milltown (Kerry)

STNKIR

London Stansted

Sun 6/9

15:50-17:20

Nonstop1h 30m

Milltown (Kerry)

Wed 9/9

16:00-17:30

Nonstop1h 30m

£28
Fastest return journey

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Fri 4/9

08:35-10:00

Nonstop1h 25m

Milltown (Kerry)

Tue 8/9

14:40-16:05

Nonstop1h 25m

£32

LondonMilltown (Kerry)

STN London Stansted - KIR Milltown (Kerry)

STNKIR

London Stansted

Sun 6/9

15:50-17:20

Nonstop1h 30m

Milltown (Kerry)

Tue 8/9

10:55-12:25

Nonstop1h 30m

£33

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Fri 11/9

14:30-15:55

Nonstop1h 25m

Milltown (Kerry)

Fri 18/9

10:25-11:50

Nonstop1h 25m

£33

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Sun 6/9

14:05-15:30

Nonstop1h 25m

Milltown (Kerry)

Wed 9/9

17:45-19:10

Nonstop1h 25m

£34

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Wed 2/9

15:55-17:20

Nonstop1h 25m

Milltown (Kerry)

Fri 4/9

16:20-17:45

Nonstop1h 25m

£34

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Thu 10/9

13:05-14:30

Nonstop1h 25m

Milltown (Kerry)

Fri 11/9

16:20-17:45

Nonstop1h 25m

£36

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Mon 31/8

12:50-14:15

Nonstop1h 25m

Milltown (Kerry)

Wed 2/9

17:45-19:10

Nonstop1h 25m

£47

LondonMilltown (Kerry)

LTN London Luton - KIR Milltown (Kerry)

LTNKIR

London Luton

Fri 28/8

08:35-10:00

Nonstop1h 25m

Milltown (Kerry)

Wed 2/9

17:45-19:10

Nonstop1h 25m

£53

LondonMilltown (Kerry)

STN London Stansted - KIR Milltown (Kerry)

STNKIR

London Stansted

Fri 30/10

15:25-16:55

Nonstop1h 30m

Milltown (Kerry)

Sun 1/11

17:20-18:50

Nonstop1h 30m

£56

Flights are sorted by cheapest return flights first.

Deals found on 10/8

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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 15 August 2026.

It’s optimal to fly from London to Killarney in the afternoon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

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 15 August 2026.

The most flights from LON to K1R are scheduled on a Friday (23 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (18 on average).

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

Airfare is below average for this route at the moment.
London to Killarney flights typically cost between £56 and £152 in September.
The cheapest return price found within the last 5 days was £28 on Ryanair (6 Sept–9 Sept).

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 8 August 2026.

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

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 15 August 2026.
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
6.9
Okay
5,468 reviews
Check prices

Overall

6.9

Comfort

6.5

Entertainment

5.7

Food

6.0

Boarding

6.7

Crew

7.5

Reviews

1 / 20
2.0
Mediocre

Nadia,Mar 2026

STN - TLL

Terrible they overbooked a didn't let 2 of our friends on, absolute shambles
Ryanair
6.9
Okay
5,468 reviews
Ryanair
6.9
Okay
5,468 reviews
Check prices

Overall

6.9

Comfort

6.5

Entertainment

5.7

Food

6.0

Boarding

6.7

Crew

7.5

Reviews

1 / 20
2.0
Mediocre

Nadia,Mar 2026

STN - TLL

Terrible they overbooked a didn't let 2 of our friends on, absolute shambles

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 30m. Fly via Ryanair to get the fastest option. There are 415 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 Stansted - Milltown (Kerry) and London Gatwick - 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: Qatar Airways (97%), Aer Lingus (97%), British Airways( 97%).

  • What are the cheapest flights from London to Killarney?

    Looking for the cheapest flight from London to Killarney? While on average our users pay £127, our data indicates the cheapest price to be £86. The most popular route (London Luton - Milltown (Kerry)), is priced around £32.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£31Average£71FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£81Average£150FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£89Average£216FlexibilityNo cancel feeOn-time70%
Search British Airways 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 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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