Harlem Airport (48S), Montana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Harlem Airport (48S) is a public-use, non-towered field in Harlem, Montana, sitting at 2,643 feet elevation. Business aviation traffic through 48S remains modest, reflecting its role serving a small regional area rather than a metro hub, with the nearest metro area roughly 220 nautical miles distant. The field offers one paved runway alongside a turf strip, and customs clearance for international arrivals is handled at Havre City-County Airport (KHVR), about 39 nautical miles away, since no customs service is available onsite.
Runways
Harlem Airport has two paved and unpaved runways. The longest, 11/29, is 4,100 ft long and 75 ft wide, with an asphalt surface.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Harlem Airport does not clear customs. The nearest port of entry is Havre City-County (KHVR), 39 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Harlem Airport recorded 271 business aviation movements in 2025. Traffic peaks in April. Business aviation traffic at 48S concentrates in spring and late-year months, with April, September, and December each recording the highest monthly operations counts.
Business jet movements, FAA TFMSC count. Peak month April, 34 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Harlem Airport averages 11.7 days above 90°F in July and 30.6 freeze days in January. July is the warmest month, with average highs of 85.0°F, and January the coldest, at 28.2°F.
Weather station is 2.1 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Harlem Airport has published operating constraints in two categories: runway notes and other notes.
Pilot-activated MIRL runway 11/29 and PAPI runway 29 lighting, controlled via CTAF.
Runway marked with white cones spaced 200 feet apart; most cones are currently missing.
Runway 15/33 has large gopher holes and tall grass throughout the surface.
For clearance delivery, contact Salt Lake Air Route Traffic Control Center.
Source: FAA Chart Supplement.
Nearby airfields
Harlem Airport has three airfields within 40 NM. The closest is Edgar G Obie, 18.99 NM west.
Source: Skystar calculation from official coordinates.
Skystar at 48S
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.
$1,200.00 catering order at 48S.
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 is the runway situation at Harlem Airport (48S)?
Harlem Airport, local identifier 48S, has two runways. Runway 11/29 is paved asphalt at 4,100 feet long and 75 feet wide, the primary surface for business aviation traffic. Runway 15/33 is a 1,933-foot turf strip. Pilots should note the turf runway has documented surface conditions that affect its usability.
Is fuel available at 48S?
Harlem Airport does not have confirmed fuel service data on file. The field is unattended (UNATNDD), with no staffed attendance schedule reported. Operators planning a stop at 48S should confirm fuel availability directly before arrival, since no fuel type is listed in current airport data.
Where do I clear customs near Harlem Airport?
Harlem Airport (48S) has no customs service onsite. The nearest customs clearance point is Havre City-County Airport (KHVR), located approximately 39.3 nautical miles away. Flights requiring customs processing near 48S must plan to route through KHVR rather than expecting onsite clearance at Harlem.
What condition is runway 15/33 in at 48S?
Runway 15/33 at Harlem Airport is a turf surface measuring 1,933 feet, and current condition reports note large gopher holes and tall grass throughout the runway. This is separate from the paved 11/29 runway, which serves as the primary surface. Pilots should account for these surface conditions when evaluating 15/33 for operations at 48S.