Jerome County Airport (KJER), Idaho
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Jerome County Airport (KJER) is a public-use, non-towered field in Jerome, Idaho, serving primarily business aviation traffic with a single paved runway. The airport sits roughly 47 nautical miles from the nearest metro area and about 92 nautical miles from the closest customs facility at Boise (KBOI). With Jet A, Jet A+, and 100LL fuel on hand and daily attendance from 0800 to 1700 local, KJER functions as a regional option for turbine and piston operators in south-central Idaho.
Runways
Jerome County Airport has one paved runway, 09/27, 5,002 ft long and 75 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Fuel and airfield services
Jerome County Airport has Jet A, Jet A+ and 100LL available on the field. Fueling is available from 8am to 5pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Jerome County Airport does not clear customs. The nearest port of entry is Boise Air Trml / Gowen Field (KBOI), 92 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Jerome County Airport recorded 1,190 business aviation movements in 2025. Traffic peaks in January, May and December. Business aviation traffic at KJER is concentrated toward the winter months of December and January, with a corresponding dip in June, according to FAA TFMSC data.
Business jet movements, FAA TFMSC count. Peak month December, 111 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Jerome County Airport averages 17.1 days above 90°F in July and 29.0 freeze days in January. July is the warmest month, with average highs of 89.6°F, and January the coldest, at 35.7°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Jerome County Airport has published operating constraints in three categories: access, runway notes and other notes.
A group of towers 700 feet tall stands 1.3 nautical miles east-northeast of the field, 2,500 feet right of the runway 27 approach course.
For clearance delivery, contact Twin Falls Approach; when that approach facility is closed, contact Salt Lake ARTCC instead.
Runway 09/27 medium intensity lighting is pilot-controlled; activate by clicking the CTAF frequency five times.
The parallel taxiway is marked with reflectors.
Source: FAA Chart Supplement.
Nearby airfields
Jerome County Airport has five airfields within 48 NM. The closest is Joslin Field / Magic Valley Regional (KTWF), 14.77 NM south.
Part of the Sun Valley area.
Source: Skystar calculation from official coordinates.
Skystar at KJER
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 KJER.
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 does KJER offer for business aircraft?
Jerome County Airport (KJER) has a single paved runway, 09/27, measuring 5,002 feet long and 75 feet wide with an asphalt surface. This length accommodates most light and midsize business jets under normal weight and density altitude conditions. The airport sits at a field elevation of 4,053 feet, which operators should factor into performance planning, particularly during summer months. There is no second runway or crosswind option, so wind conditions along the 09/27 axis are the primary planning consideration. The airport is non-towered, so runway use follows standard CTAF procedures.
Is KJER a towered airport, and how is traffic coordinated?
Jerome County Airport, identified as KJER, is non-towered, meaning pilots coordinate arrivals and departures over a common traffic advisory frequency rather than through a control tower. Instrument approach clearances are handled by Twin Falls Approach, and when that facility is closed, Salt Lake ARTCC takes over the coordination function. The airport is attended daily from 0800 to 1700 local time. Runway lighting for 09/27 is pilot-controlled, activated by clicking the CTAF frequency five times. Operators flying into KJER outside these hours or without radio contact should plan accordingly for self-announced procedures.
What fuel is available at Jerome County Airport?
Jerome County Airport (KJER) offers both 100LL avgas and Jet A fuel, including a premium Jet A+ grade. This makes the field usable for a mix of piston, turboprop, and light-to-midsize jet traffic. The airport is attended between 0800 and 1700 local daily, which is the window during which fuel service can reliably be arranged. Business aviation accounts for the large majority of annual operations at KJER, consistent with the fuel mix on offer. Operators should confirm fuel availability directly ahead of arrival, particularly for after-hours operations.
Are there any obstacles to be aware of near KJER?
Yes, Jerome County Airport (KJER) has a documented obstacle relevant to the runway 27 approach: a group of towers reaching 700 feet, located 1.3 nautical miles east-northeast of the field and 2,500 feet right of the runway 27 approach course. Pilots flying visual or instrument approaches to runway 27 should account for this obstruction in their approach planning. The parallel taxiway at KJER is marked with reflectors, which is a helpful reference for low-light or night operations. No other obstacles are noted in the airport's general remarks. Terrain and obstacle awareness remain part of standard approach briefings at this field.
Does business aviation traffic at KJER vary by season?
Yes, business aviation traffic at Jerome County Airport (KJER) is concentrated in certain months rather than spread evenly across the year, based on FAA TFMSC data for 2025. December and January show the highest monthly operation counts, at 111 and 110 respectively, while June sees the lowest count at 84. Total annual business aviation operations at KJER reach 1,190 out of 1,329 total operations recorded. Operators planning flights into KJER during peak months may want to account for comparatively higher activity levels. This pattern is drawn directly from the reported monthly operations data.