Stanford Field (U12), Idaho
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Stanford Field (U12) is a public-use, unattended airport serving St Anthony, Idaho, at an elevation of 4,966 feet. The field offers a single paved runway, 04/22, and reports 100LL and Jet A fuel availability via self-service. Traffic is modest, with FAA TFMSC data showing 53 business aviation operations in 2025, and the nearest customs facility is at KBZN, roughly 112 nautical miles away. Pilots operating into this rural Idaho strip should note the mix of paved and gravel runway activity and the terrain features surrounding the approach paths.
Runways
Stanford Field has one paved runway, 04/22, 4,500 ft long and 50 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Stanford Field has Jet A and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Stanford Field does not clear customs. The nearest port of entry is Bozeman Yellowstone International (KBZN), 112 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Stanford Field recorded 53 business aviation movements in 2025. Traffic peaks in September. Business aviation traffic at U12 concentrates in the summer and early fall, with September, July, and June showing the highest monthly operation counts in the 2025 FAA TFMSC data.
Business jet movements, FAA TFMSC count. Peak month September, 14 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Stanford Field averages 5.5 days above 90°F in July and 30.9 freeze days in January. July is the warmest month, with average highs of 83.4°F, and January the coldest, at 27.6°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Stanford Field has published operating constraints in three categories: access, runway notes and other notes.
An 85-foot power line crosses the extended centerline 2,600 feet from the runway, on the approach to Runway 04.
Crop dusters operate from a gravel runway adjacent to and north of the paved runway during the agricultural season.
Activate REILs for Runway 04 and 22, and MIRL for Runway 04/22, using CTAF.
A 5-foot fence is located at the runway edge, 90 feet to the left.
Numerous close-in obstructions, including a fence, signs, and trees, are located in the primary surface.
On Runway 04/22, Runway 04 has a 25:1 slope to the displaced threshold.
A 21:1 slope applies to the displaced threshold.
Trees 55 feet tall are located 490 feet from the runway, 110 feet to the left.
Activate the beacon using CTAF.
Fuel is available 24 hours via credit card service.
For clearance delivery, contact Salt Lake ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Stanford Field has four airfields within 46 NM. The closest is Rexburg-Madison County (KRXE), 8.71 NM southwest.
Part of the Jackson Hole area.
Source: Skystar calculation from official coordinates.
Skystar at U12
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 U12.
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 fuel is available at U12 / Stanford Field?
Stanford Field (U12) offers both 100LL and Jet A fuel. Service is unattended, with a 24-hour credit card system available for self-service fueling. There is no staffed FBO presence, so pilots should plan fueling accordingly before or after hours. This setup is typical for a lower-traffic general aviation field in rural Idaho.
Is there customs service at U12?
U12 / Stanford Field does not have customs service onsite. The nearest customs facility is at KBZN, located approximately 112 nautical miles away. Pilots requiring customs clearance near St Anthony, Idaho should plan to route through KBZN or coordinate arrangements in advance, since this small field has no onsite customs capability.
What obstacles should pilots be aware of near U12?
Stanford Field (U12) has several close-in obstructions affecting approach and departure planning. A 5-foot fence sits near the runway threshold, and numerous close-in obstructions including fences, signs, and trees are located in the primary surface. Additionally, 55-foot trees are noted 490 feet from the runway, 110 feet to the left, and an 85-foot power line crosses the extended centerline on the approach to Runway 04.
Does U12 have any seasonal agricultural operations?
Yes, Stanford Field (U12) sees seasonal activity from crop dusters, which operate from a gravel runway adjacent to and north of the paved runway during the agricultural season. Pilots transiting the area during this period should be aware of this additional traffic pattern near the airport, separate from the paved Runway 04/22 operations.