Cheap Flights from Killarney (KIR) to Kos (KGS)

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Find available prices by choosing your travel dates.
Flights from Killarney (KIR) to Kos (KGS)
Origin airport
Kerry
Destination airport
Kos Island Intl.
Distance
2063 mi

Killarney to Kos Flights

The cheapest times to fly from Killarney to Kos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Killarney to Kos are during the month of . You can find some of the cheapest flights from Killarney to Kos with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Killarney to Kos

Sunday is one of the best days to book for cheap flights from Killarney to Kos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Killarney to Kos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Killarney to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Killarney to Kos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Killarney to Kos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS) cost?
Discover the latest flight deals from KIR to KGS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from KIR to KGS?
The cheapest flights from KIR to KGS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from KIR to KGS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from KIR to KGS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS)?
There are no daily direct flights departing from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you’ll be cruising above the clouds in no time.
What day of the week has the most flights from KIR to KGS?
Generally you’ll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS)?
To reach Kos Island Intl. Airport (KGS) on time, select a flight that leaves Kerry Airport (KIR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS) last-minute?
Booking your ticket from KIR to KGS just before your getaway is generally more expensive. However, if you’re flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a KIR to KGS flight and hotel package?
Compared with arranging hotels and flights separately, booking a KIR to KGS flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one convenient place will take the stress out of planning your trip. Just secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Kerry Airport (KIR) to Kos Island Intl. Airport (KGS)?
You can usually cancel or reschedule your KIR to KGS flight. However, if it’s been more than 24 hours since booking, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.