$23 Cheap Flights to Castleisland

View $23 flight on Sat, Feb 28, 2026Opens in a new window

Popular airlines to Castleisland

How much is the cheapest flight to Castleisland?

Prices were available within the past 7 days and start at $23 for one-way flights and $43 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Mon, Apr 13 - Tue, Apr 14
LTN
London
KIR
Killarney
$43 Roundtrip, found 1 day ago
$43
Roundtrip
found 1 day ago
Select Ryanair flight, departing Mon, Apr 13 from London to Killarney, returning Tue, Apr 14, priced at $43 found 1 day ago
Ryanair
Sat, Feb 28 - Sat, Mar 7
HHN
Frankfurt
KIR
Killarney
$47 Roundtrip, found 3 days ago
$47
Roundtrip
found 3 days ago
Select Ryanair flight, departing Sat, Feb 28 from Frankfurt to Killarney, returning Sat, Mar 7, priced at $47 found 3 days ago
Ryanair
Mon, Apr 27 - Sat, May 2
DUB
Dublin
KIR
Killarney
$48 Roundtrip, found 5 hours ago
$48
Roundtrip
found 5 hours ago
Select Ryanair flight, departing Mon, Apr 27 from Dublin to Killarney, returning Sat, May 2, priced at $48 found 5 hours ago
Ryanair
Mon, Mar 16 - Tue, Mar 17
DUB
Dublin
KIR
Killarney
$49 Roundtrip, found 5 hours ago
$49
Roundtrip
found 5 hours ago
Select Ryanair flight, departing Mon, Mar 16 from Dublin to Killarney, returning Tue, Mar 17, priced at $49 found 5 hours ago
Ryanair
Thu, May 14 - Thu, May 21
DUB
Dublin
KIR
Killarney
$49 Roundtrip, found 5 days ago
$49
Roundtrip
found 5 days ago
Select Ryanair flight, departing Thu, May 14 from Dublin to Killarney, returning Thu, May 21, priced at $49 found 5 days ago

Find the cheapest month to fly from Columbus (CMH) to Shannon (SNN)

April is typically the cheapest month to fly

From $554 - $1,658 per traveler.

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Frequently asked questions

What month is the cheapest to fly to Castleisland?
The cheapest month to fly to Castleisland is January, with average fares around $388. This month is more affordable as it falls after the holiday season, when travel demand typically decreases. You can also find competitive prices in February, March, and August.*Prices based on flights available on Expedia in the last year.
Which US cities have the cheapest flights to Castleisland?
Looking for affordable flights to Castleisland? Consider flying from these US cities:

  • Fairbanks (FAI)
  • Sacramento (SAC, SMF)
  • Pittsburgh (PIT)
  • Boston (BOS)
  • Newark (EWR)

with prices usually starting around $239.
Which US cities fly direct to Castleisland?
You can fly directly to Castleisland (SNN) from these US cities:

  • Boston (BOS)
  • New York (JFK)
  • Newark (EWR)
  • Chicago (ORD)

How to find a cheap flight to Castleisland?
To find a cheap flight to Castleisland, be flexible with your dates. Traveling in the off-season or shoulder season can help you save. Mid-week flights are usually less expensive, too. Use flight search engines, like Expedia, to compare airlines, flight times and routes all in one place to find affordable rates. You may find that flights with layovers are cheaper than direct flights. You can also set up Price Tracking and receive alerts when fares go up or down.
Which airlines fly to Castleisland?
You can fly to Castleisland with several airlines:

  • Aer Lingus
  • American Airlines
  • British Airways
  • Ryanair
  • United
  • United Airlines

Where do you fly into Castleisland?
If you're heading to Castleisland, you have several airport options:

  • The closest major airport is Shannon (SNN), about 49 miles from the city center, which is a hub for Aer Lingus, United, and Delta, with other airlines like 4Y and Ryanair also operating here.
  • Cork (ORK) is another option, about 72 miles away, serving as a hub for Aer Lingus, KLM, and Hop!, with Lufthansa, CL also operating here.
  • Killarney (KIR-Kerry), about 6 miles away, serving as a hub for Ryanair and RK.

What is the cheapest airport to fly to in Castleisland?
The most affordable airport to fly into in Castleisland is typically Shannon (SNN), which is about 49 miles from the city center. This makes it a practical choice for travelers heading to the area.*Prices based on flights available on Expedia in the last year.
Which budget airlines fly to Castleisland?
Looking for affordable flights to Castleisland? There are 1 budget carriers to choose from:

  • Ryanair: serves Killarney (KIR), Shannon (SNN), Cork (ORK)

What is the best month to visit Castleisland?
The best time to visit Castleisland is during the shoulder seasons of May, September, or October. These months offer mild weather, longer daylight hours, and fewer crowds, allowing you to explore the beautiful County Kerry without the peak summer rush.
How far in advance should I book a flight to Castleisland?
For domestic travel to Castleisland, booking 3-12 months in advance usually gets you the best deals. For international flights to Castleisland, aim to book around 1 month ahead to snag the best fares. For added peace of mind, use Expedia's Price Drop Protection™ when you make your booking. It's free to use for Gold and Platinum members on the Expedia app. Once a qualifying flight is purchased, we'll automatically check your flight on Expedia until the day of your departure and notify you if there are price changes. If your flight price drops after you book, we'll automatically award the price difference in OneKeyCash™* into your One Key account after your trip ends.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What day of the week is cheapest day to buy a plane ticket to Castleisland?
Tuesday is typically the cheapest day to buy a plane ticket to Castleisland, with an average price of about $283. This lower fare is likely due to fewer travelers booking flights midweek. If Tuesday isn't an option, consider looking for flights on Monday. Use Expedia's Price Tracking tool to monitor prices for your trip and receive alerts when fares go up or down.*Cheapest day to book based on flights available on Expedia in the last year.
What is the most expensive month to fly to Castleisland?
June is the most expensive month to fly to Castleisland, with average return ticket prices around $484. This is about 12% higher than the average throughout the past year, as summer travel begins and demand increases. If you're looking for more affordable options, consider visiting in January or February when prices are typically lower.*Prices based on flights available on Expedia in the last year.
What public holidays or seasonal events might make flights to Castleisland more expensive?
When planning your trip to Castleisland, keep in mind that flights may be pricier around Saint Patrick's Day on March 17, as this holiday marks the start of the tourist season in Ireland. Additionally, the summer months, particularly June through August, can see higher prices due to increased travel demand.
How far is the airport from central Castleisland?
The airport serving Castleisland is Killarney (KIR-Kerry), located approximately 6 miles southwest of the city center. This makes it a convenient option if you are heading to or from the area.
How can I track flight prices to Castleisland?
Our Price Tracking tool allows you to monitor fares to Castleisland. You can view flight price history and see predictions of future prices as available. When you're signed into your Expedia account, you can set up flight price alerts too. This way, you'll receive notifications when prices go up or down, so you know when it's the right time to book.
How to get a cheap last-minute flight to Castleisland?
It is possible to find cheap, last-minute flights to Castleisland, especially if you can be flexible with your dates, times and route. Whether you're planning a spontaneous getaway or need to travel for business, there are plenty of last-minute flight deals on Expedia. You can also bundle your flight and hotel for even more savings with a package deal.
Can I earn miles booking a flight to Castleisland with Expedia?
You can earn miles when booking a flight to Castleisland on Expedia. Before confirming your booking, just select the frequent flyer program name and enter your program number. For even more rewards, join One Key™—our free travel rewards program. One Key members earn OneKeyCash™* on eligible bookings for every dollar spent.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Can I save money by booking a Castleisland trip package?
Book a Castleisland flight and hotel package deal on Expedia, and you can make significant savings. It's simple to bundle your accommodations and flights, and you can also add car rentals and activities to create your own customized Castleisland trip. Plus, nothing beats the convenience of booking everything in the same place.
Can I change or cancel my flight to Castleisland?
It's often possible to cancel or change your flight to Castleisland using Expedia. Many airlines let you cancel your flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may offer to reschedule your flight rather than provide a direct refund. To find affordable flights to Castleisland with flexible change policies, select "No cancel fee" or "Changes included" when you search. Need more information? Visit our Customer Service Portal.

*Flight schedules are subject to change.

Book with confidence

Tips to find the cheapest flights to Castleisland

The cheapest day to fly

Get started finding a cheap flight to Castleisland on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

April is the cheapest month to fly to Castleisland. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Castleisland. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Castleisland, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Castleisland

The lowest price for round-trip flights to Castleisland in 2026 starts from from $43, while one-way tickets start from from $23. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Castleisland. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Castleisland

Ryanair are just some of the airlines that can typically offer cheap tickets to Castleisland. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Castleisland and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Castleisland, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Castleisland. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Castleisland plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Castleisland

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Castleisland.

Stopover savings

The cheapest tickets to Castleisland are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Castleisland. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Castleisland for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Castleisland. Simply download the free Expedia app to your smart device and activate Castleisland flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Castleisland. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

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

Tips to find the cheapest flights to Castleisland

Travel information

Destination airport
Kerry
Destination airport IATA code
KIR
Destination city name
Killarney
Roundtrip price
$43

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*Available to One Key members.