Cheap Flights from Washington (IAD) to Killarney (KIR)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Killarney (KIR-Kerry)

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Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR) cost?
Secure a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR)?
is the most affordable month to fly from IAD to KIR. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IAD to KIR flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to KIR?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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 Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR) last-minute?
Last-minute fares from IAD to KIR are usually more expensive. To lock in the lowest rates, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book an IAD to KIR flight and hotel package?
Booking an IAD to KIR flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Kerry Airport (KIR)?
It's generally possible to reschedule or cancel your IAD to KIR flight. However, if the booking was made more than 24 hours ago, 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 information on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Kerry
Distance
3279 mi

Book with confidence

Washington to Killarney Flights

The cheapest times to fly from Washington to Killarney

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 Washington to Killarney are during the month of . You can find some of the cheapest flights from Washington to Killarney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Killarney

Sunday is one of the best days to book for cheap flights from Washington to Killarney: 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 Washington to Killarney

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 Washington to Killarney 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 Washington to Killarney 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 Washington to Killarney 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.

 

Washington to Killarney Flights

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*Available to One Key members.