[1] In the year ending December 31, 2022 the airport had 12,276 aircraft operations, average 34 per day: 89% general aviation, 6% airline, and 5% air taxi.

President Barack Obama landed at the airport twice, first in 2008 during his presidential campaign, and on May 8, 2015, to address the graduating class of 2015 from Lake Area Technical Institute.

This route continued through South Dakota with additional stops in Huron, Pierre, Phillip, Rapid City, and Spearfish.

On August 15, 2016, Aerodynamics, Inc. (later California Pacific Airlines) began flying to Watertown with daily service to Denver, via Pierre, using Embraer 145 jet aircraft.

Air service to Watertown resumed on April 3, 2019, with SkyWest Airlines operating as United Express, using 50-seat Canadair Regional Jet 200s.

[5] Denver Air Connection was selected for a new contract starting July 1, 2021; at that time, SkyWest also announced their intentions to remain in the Pierre and Watertown markets.

Sun Country Airlines flew several seasonal charter Boeing 737-800s to Laughlin/Bullhead City International Airport in Arizona, known as "casino or gamblers' flights," in coordination with travel agencies in Watertown.