Sidney-Richland Regional (KSDY), Montana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Sidney-Richland Regional Airport (KSDY) serves the Sidney, Montana area with a public-use, non-towered field offering two paved runways and both 100LL and Jet A fuel. Business aviation accounts for a substantial share of the airport's annual operations, and the field sits closer to North Dakota's Williston Basin International than to most other regional airports, with customs clearance available only at KXWA some 37.65 nautical miles away.
Runways
Sidney-Richland Regional has two paved runways. The longest, 01/19, is 5,705 ft long and 100 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Sidney-Richland Regional has Jet A and 100LL available on the field. Fueling is available from 6am to 7pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Sidney-Richland Regional does not clear customs. The nearest port of entry is Williston Basin International (KXWA), 38 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Sidney-Richland Regional recorded 2,358 business aviation movements in 2025. Traffic peaks in January and February. Business aviation traffic at KSDY is concentrated in the winter months, peaking in January and February before declining through the summer and reaching its lowest levels in the fall.
Business jet movements, FAA TFMSC count. Peak month January, 282 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Weather station is 2.2 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Sidney-Richland Regional has published operating constraints in three categories: runway notes, pavement strength and other notes.
MIRL lighting for runways 01/19 and 11/29, REIL for runways 01, 19, 11, and 29, and PAPI for runways 01, 19, 11, and 29 are all pilot-activated via CTAF.
PCR VALUE: 180/F/D/Y/T
PCR VALUE: 211/F/D/Y/T
For airport conditions, contact airport management. Surface conditions are unmonitored from 0400 to 1300 Zulu.
Flocks of waterfowl are present in the vicinity of the airport.
For clearance delivery, if unable to contact on the FSS frequency, contact Salt Lake ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Sidney-Richland Regional has five airfields within 48 NM. The closest is Williston Basin International (KXWA), 37.65 NM northeast.
Source: Skystar calculation from official coordinates.
Skystar at KSDY
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$2,400.00 catering order at KSDY.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KSDY?
Sidney-Richland Regional, identified as KSDY, operates two paved asphalt runways. Runway 01/19 is the longer of the two at 5,705 feet, with a width of 100 feet. Runway 11/29 measures 4,024 feet long and is also 100 feet wide. Both runways are lit, with MIRL on each and REIL plus PAPI available on all four runway ends. Pilots activate the lighting system themselves through CTAF since the field is non-towered.
Is KSDY a towered airport?
KSDY, Sidney-Richland Regional Airport, is a non-towered field. Traffic coordination and runway lighting activation are handled through CTAF rather than a control tower. The airport keeps an attendance schedule of 0600-1900 daily, but surface condition monitoring is unavailable between 0400 and 1300 Zulu. Pilots needing clearance delivery information who cannot reach the airport on the FSS frequency are instructed to contact Salt Lake ARTCC instead.
Does Sidney-Richland Regional have on-site customs clearance?
Sidney-Richland Regional Airport does not have customs service on site. The nearest customs-equipped airport is KXWA, located approximately 37.65 nautical miles away. Flight crews requiring customs clearance near KSDY need to plan their routing through that facility instead. This distance is worth factoring into fuel and timing plans for any international arrival into the Sidney area.
What fuel is available at KSDY?
Sidney-Richland Regional, KSDY, stocks both 100LL avgas and Jet A fuel. Fuel availability aligns with the field's published attendance schedule of 0600-1900 daily, all days of the week. Operators planning arrivals outside that window should account for the unattended status of the field. With both fuel types on hand, the airport supports a mix of piston and turbine business aircraft.
How much business aviation traffic does KSDY see, and is it seasonal?
Sidney-Richland Regional Airport, KSDY, logged 2,358 business aviation operations in 2025 according to FAA TFMSC data, out of 5,453 total annual operations. Traffic is concentrated in the winter months, with January recording 282 business aviation operations and February 268, the two highest months of the year. Activity tapers through the summer, with monthly counts falling into the mid-150s to mid-160s by August and November. This pattern gives KSDY a clear seasonal weighting toward the colder months rather than an even year-round distribution.