The cheapest times to fly from SEA to KIR are

  • January 1st to March 25th
  • May 14th to June 10th
  • October 1st to December 9th (except the week of October 15th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to KIR is early November. Prices can be as high as $2311 for Saturday flights during early August, or as low as $610 for Wednesday flights around early November.


When to Fly to Kerry

Flying from Seattle, WA (SEA) to Kerry County (KIR) will usually cost between $629 to $1212 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $675. Due to high demand the most expensive time to fly is early August, with an average price of $1308. Planning your trip to low-cost times can easily save you $633 on economy flights and even more on first-class flights. Generally, any price below $770 can be considered a good price for a round-trip SEA to KIR flight.

See below for a graph of average weekly prices for the SEA to KIR route. All prices are for round-trip tickets in USD.

SEA to KIR Flight Prices

Compared to other flights, the SEA to KIR flight is cheaper than the average and costs less than the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to KIR, and Tuesday the cheapest day to fly back into SEA. Saturdays are the most expensive days to fly to Kerry, and Sundays are the most expensive days to return to Seattle. Selecting flights on the least expensive days could save you up to $189 (18%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $744. Return trip prices are from the KIR to SEA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SEA to KIR can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 4 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SEA to KIR while comparing.

Destination alternative #1: Shannon Airport (SNN) in Shannon

  • 44 miles (71 km) away from KIR
  • Usually 10.40% less expensive than KIR
  • 1-layover flights available

See SEA to SNN flights

Destination alternative #2: Cork Airport (ORK) in Cork

  • 50 miles (80 km) away from KIR
  • Usually 8.12% less expensive than KIR
  • 1-layover flights available

See SEA to ORK flights


Flight Hacking SEA to KIR

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SEA to KIR — but Champion Traveler does!

Hack #1: Dublin (SEA > DUB > KIR)

  • Price for both tickets: $687
  • Average savings: $83 (10.79%)

See SEA to DUB flights


Flight Questions Answered

Still have questions about flying from SEA to KIR? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Aer Lingus, Air Canada, American, British Airways, Finnair, Iberia, KLM, United, and potentially more during busy seasons.

How far away is it from Kerry Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 4496 miles or 7236 kilometers.

How long does it take to fly from SEA to KIR?

The real-world flight time for a nonstop SEA to KIR flight is about 9 hour 4 minutes.

How many flights go between Seattle, WA and Kerry County?

It depends on the day of the week and the date, but a typical day might have around 7 available flights from SEA to KIR.


Airport Location Info


Departing Airport

Origination code SEA
Origination airport name Seattle/Tacoma International Airport
City Seattle, WA
Country the United States
Latitude 47.5
Longitude -122.3

Return Airport

Destination code KIR
Destination airport name Kerry Airport
City Kerry County
Country Ireland
Latitude 52.2
Longitude -9.5


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.