The cheapest times to fly from KIR to STL are

  • January 8th to March 4th
  • March 19th to April 1st
  • April 30th to June 10th
  • October 8th to December 9th (except the weeks of October 22nd, October 29th, and November 26th)

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 KIR to STL is early May. Prices can be as high as $3622 for Saturday flights during late November to early December, or as low as $705 for Tuesday flights around early May.


When to Fly to St. Louis

Flying from Kerry County (KIR) to St. Louis, MO (STL) will usually cost between $978 to $1381 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early May with an average ticket price of $902. Due to high demand the most expensive time to fly is late November to early December, with an average price of $1496. Planning your trip to low-cost times can easily save you $593 on economy flights and even more on first-class flights. Generally, any price below $1097 can be considered a good price for a round-trip KIR to STL flight.

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

KIR to STL Flight Prices

Compared to other flights, the KIR to STL flight is priced close to the average and costs about as much as the average flight leaving from Kerry. The average price per mile (for a direct flight) is $0.18, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $124 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1079. Return trip prices are from the STL to KIR 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 KIR to STL can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 51 minutes may not be realistic.


Flight Hacking KIR to STL

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 KIR to STL — but Champion Traveler does!

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

  • Price for both tickets: $771
  • Average savings: $326 (29.72%)

See KIR to BOS flights

Hack #2: Boston, MA (KIR > BOS > STL)

  • Price for both tickets: $807
  • Average savings: $291 (26.48%)

See KIR to DUB flights

Hack #3: Chicago, IL (KIR > ORD > STL)

  • Price for both tickets: $807
  • Average savings: $290 (26.44%)

See KIR to ORD flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Aer Lingus, Air Canada, American, British Airways, Delta, United, and potentially more during busy seasons.

How far away is it from St Louis Lambert International Airport to Kerry Airport?

The distance between the two airports is roughly 3814 miles or 6138 kilometers.

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

The real-world flight time for a nonstop KIR to STL flight is about 7 hour 51 minutes.

How many flights go between Kerry County and St. Louis, MO?

It depends on the day of the week and the date, but a typical day might have around 9 available flights from KIR to STL.


Airport Location Info


Departing Airport

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

Return Airport

Destination code STL
Destination airport name St Louis Lambert International Airport
City St. Louis, MO
Country the United States
Latitude 38.7
Longitude -90.4


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.