Sidney-Richland, MT Airport
- URL: Sidney-Richland, MT (SDY)
- Time zone: GMT -7
- Service telephone: +1 406 480-1820 (mobile) / 406 433-2415 (office)
- Address: Sidney-Richland Municipal Airport, P.O.Box 1050, 540 Airport Road, Sidney, MT 59270, USA
- Operating company: Sidney Richland Airport Authority
- Flight distribution on the days of the week: Monday (14.29%), Tuesday (14.29%), Wednesday (14.29%), Thursday (14.29%), Friday (14.29%), Saturday (14.29%), Sunday (14.29%)
- Alternative spelling: Sidney-MT, Sidney-Richland Municipal Airport, Сидней, Монтана, سيدني، مونتانا, シドニー (モンタナ州), 悉尼 (蒙大拿州)
