Caldwell Executive Airport (KEUL), Idaho
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Caldwell Executive Airport (KEUL) is a non-towered public-use field in Caldwell, Idaho, sitting at 2,431 feet elevation about 18.58 nautical miles from the Boise metro area. The airport supports business aviation traffic alongside training and general aviation activity, with a single paved runway serving jet, turboprop, and helicopter operators. Fuel, parking, and pattern procedures at KEUL are structured to separate fixed-wing turbine traffic from rotorcraft training operations on the field.
Runways
Caldwell Executive Airport has one paved runway, 12/30, 5,500 ft long and 100 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Fuel and airfield services
Caldwell Executive Airport has Jet A, Jet A+ and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Caldwell Executive Airport does not clear customs. The nearest port of entry is Boise Air Trml / Gowen Field (KBOI), 19 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Caldwell Executive Airport recorded 1,049 business aviation movements in 2025. Traffic peaks in August. Business aviation traffic at KEUL peaks in August and dips in February, with spring and fall months also showing elevated activity relative to winter.
Business jet movements, FAA TFMSC count. Peak month August, 118 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Caldwell Executive Airport has published operating constraints in three categories: access, runway notes and other notes.
For clearance delivery, contact Big Sky Approach.
MIRL for runway 12/30 is activated via CTAF. PAPI for runways 12 and 30 operates continuously.
Runway 12 is the calm wind runway.
Preferred parking for jet and large turboprop aircraft is available on the terminal apron on the north side of the runway.
The preferred helicopter traffic pattern is southwest of the runway.
A radio tower, 363 feet above ground level, is located 1.4 miles north of the airport.
Fuel is available 24 hours by credit card. Jet A is available from a truck Monday through Saturday from 1500 to 2300Z. Contact the airport for Jet A and after-hours callout.
The transient ramp is preferred for use by training helicopters for launch and recovery.
The FBO monitors frequency 122.85.
Source: FAA Chart Supplement.
Nearby airfields
Caldwell Executive Airport has five airfields within 37 NM. The closest is Nampa Municipal (KMAN), 6.10 NM southeast.
Part of the Boise area.
Source: Skystar calculation from official coordinates.
Skystar at KEUL
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 KEUL.
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 KEUL offer for business aircraft?
Caldwell Executive Airport (KEUL) has a single paved runway, 12/30, measuring 5,500 feet long and 100 feet wide with an asphalt surface. This length accommodates most light and midsize jets as well as turboprops operating in and out of the field. Runway 12 is designated as the calm wind runway. The runway is equipped with medium intensity runway lighting activated via CTAF, and PAPI is available on both 12 and 30, operating continuously. There is no tower at KEUL, so all runway and pattern coordination is handled through CTAF.
Is Jet A fuel available at Caldwell Executive Airport?
Caldwell Executive Airport (KEUL) carries 100LL, Jet A, and Jet A+ fuel types. Jet A is delivered from a truck Monday through Saturday during a set window, while 100LL is available 24 hours by credit card. Aircraft needing Jet A outside the truck schedule, or after hours, require a callout arrangement rather than self-service access. Dispatchers planning Jet A uplift at KEUL should confirm timing against the truck delivery schedule rather than assuming round-the-clock availability.
Where should jet and turboprop aircraft park at Caldwell Executive?
Preferred parking for jet and large turboprop aircraft at Caldwell Executive Airport (KEUL) is on the terminal apron located on the north side of the runway. Helicopter operations are directed elsewhere on the field: training helicopters are asked to use the transient ramp for launch and recovery, and the preferred helicopter traffic pattern sits southwest of the runway. This separation keeps fixed-wing turbine traffic and rotorcraft activity apart on a non-towered field. Crews should plan taxi routing with this parking segregation in mind when arriving at KEUL.
Does KEUL have customs clearance on site?
Caldwell Executive Airport does not have customs processing on site. The nearest customs-capable airport is KBOI, located approximately 18.54 nautical miles away. International arrivals into Caldwell Executive need to route their customs clearance through KBOI rather than clearing directly at KEUL. Dispatchers building international itineraries through KEUL should factor in this separate customs stop when sequencing the arrival.
How does business aviation traffic vary by season at Caldwell Executive Airport?
Business aviation traffic at Caldwell Executive Airport (KEUL) is concentrated in certain months rather than spread evenly through the year, according to FAA TFMSC data covering border-crossing operations. August recorded the highest monthly count at 118 operations, while February was the lowest at 66. Spring and fall months such as April and October also showed elevated activity compared to the winter low points. Total business aviation operations for the tracked period reached 1,049 out of 1,411 annual operations overall. Crews scheduling flights into KEUL should anticipate busier ramp conditions during the higher-traffic months.