Plains Airport (S34), Montana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Plains Airport (S34) is a public-use, non-towered field in Plains, Montana, sitting at 2,467 feet elevation and serving low-volume business aviation traffic in the western part of the state. A single paved runway handles operations, with both 100LL and Jet A available despite the field being unattended. There is no customs facility onsite, and international arrivals must clear through Kalispell (KGPI), roughly 57 nautical miles away.
Runways
Plains Airport has one paved runway, 13/31, 4,650 ft long and 75 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Plains Airport has Jet A and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Plains Airport does not clear customs. The nearest port of entry is Glacier Park International (KGPI), 57 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Plains Airport recorded 10 business aviation movements in 2025. Traffic peaks in January, May, July and September.
Business jet movements, FAA TFMSC count. Peak month January, 2 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Plains Airport averages 12.2 days above 90°F in July and 29.9 freeze days in December. August is the warmest month, with average highs of 86.7°F, and December the coldest, at 33.3°F.
Weather station is 12.7 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Plains Airport has published operating constraints in two categories: runway notes and other notes.
PAPI is activated for runway 31; MIRL for runway 13/31 is controlled via CTAF.
For clearance delivery, contact Salt Lake ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Plains Airport has five airfields within 49 NM. The closest is Thompson Falls (KTHM), 16.29 NM west.
Source: Skystar calculation from official coordinates.
Skystar at S34
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 S34.
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 runway is available at S34 in Plains, Montana?
Plains Airport (S34) has one paved runway, designated 13/31, measuring 4,650 feet long and 75 feet wide with an asphalt surface. This is the only runway serving the field, and it accommodates the airport's business aviation traffic. There is no parallel or crosswind runway option at this location.
Is fuel available at KS34 for a business aircraft stop?
Plains Airport (S34) offers both 100LL and Jet A fuel on the field. The airport itself is unattended, so pilots and dispatchers should plan fueling logistics accordingly rather than expecting staffed service. Both fuel types listed cover typical piston and turbine aircraft needs for a stop in this part of Montana.
Can international flights clear customs directly at Plains Airport?
No, Plains Airport (S34) does not have customs service onsite. The nearest customs clearance point is Kalispell (KGPI), located approximately 56.68 nautical miles away. Flights requiring customs processing need to route through Kalispell before or after a stop at Plains.
How much business aviation traffic does S34 see according to FAA data?
Plains Airport (S34), located near the US-Canada border region of Montana, is tracked in FAA TFMSC data as seeing cross-border business aviation traffic rather than total field activity. The 2025 data shows 10 business aviation operations recorded across scattered months including January, May, July, and September, reflecting the airport's low overall traffic tier.