Boulder Municipal (KBDU), Colorado
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Boulder Municipal Airport (KBDU) sits at 5,288 feet elevation in Boulder, Colorado, roughly 23 nautical miles from the Denver metro area and about 9 nautical miles from the nearest customs facility at KBJC. The field is non-towered and operates two paved runways, including a dedicated glider strip alongside the main asphalt runway, with attendance and fuel service scheduled 0800-1700 daily. Business aviation activity here is modest, reflecting the airport's role as a regional field rather than a jet destination, and glider operations share the traffic pattern with powered aircraft under specific separation procedures.
Runways
Boulder Municipal has two paved runways. The longest, 08/26, 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
Boulder Municipal has 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
Boulder Municipal does not clear customs. The nearest port of entry is Rocky Mountain Metro (KBJC), 9 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Boulder Municipal recorded 183 business aviation movements in 2025. Traffic peaks in October. Business aviation traffic at KBDU builds through the year and peaks in September and October, well above the quieter winter months.
Business jet movements, FAA TFMSC count. Peak month October, 27 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
Boulder Municipal has published operating constraints in four categories: access, runway notes, noise procedures and other notes.
Glider operations occur on a strip located 60 feet parallel to the runway.
The landing area is undefined and used for glider operations only, with 197 feet of separation between centerlines.
Simultaneous approaches and departures from runway 8/26 and 8G/26G are not authorized. Powered aircraft must yield to gliders on final approach or initiate a go-around for adequate spacing.
Midfield pattern entry from the south is for glider use only.
For clearance delivery, contact Denver Approach.
Glider activity occurs daily from sunrise to sunset southeast of the airport, between the airport and a power plant, from 6,300 to 9,000 feet. Avoidance is recommended, and extreme caution should be exercised when transiting the area.
PAPI on runway 26 must be activated; MIRL on runway 8/26 is controlled via CTAF.
Departure turns below 512 feet are not authorized. Trees 40 to 60 feet tall create a 27-degree obstacle clearance slope to the displaced threshold. Runway 08 is the calm-wind runway.
On runway 08, a 10-foot tree located 277 feet from the displaced threshold and 14 feet to the right creates an approach slope of 47:1.
Trees 25 to 55 feet tall outline Hayden Lake, located 200 feet from the runway 08G threshold and 250 feet from the runway 8 and 8G thresholds.
Traffic pattern altitude for runway 08/26 is 1,012 feet AGL.
Simultaneous runway operations on runway 8/26 and 8G/26G are prohibited.
A noise abatement procedure is in effect; contact the airport manager or see the Boulder, Colorado airport website for details.
100LL self-serve fuel is available 24 hours a day.
The surface measures 3,000 feet by 20 feet of chip-and-seal at the west end, with 1,100 feet of grass at the east end.
During west winds, severe turbulence should be expected. A 300-foot safety area is outlined with red reflectors, with a 130-foot dropoff east of the marked area.
Parachute jump activity and waterfowl are present on and in the vicinity of the airport.
Source: FAA Chart Supplement.
Nearby airfields
Boulder Municipal has five airfields within 25 NM. The closest is Vance Brand (KLMO), 8.04 NM north.
Part of the Denver area.
Source: Skystar calculation from official coordinates.
Skystar at KBDU
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 KBDU.
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 runways are available at KBDU?
KBDU, Boulder Municipal Airport, has two paved runways. Runway 08/26 is 4,100 feet long and 75 feet wide with an asphalt surface. A second runway, 08G/26G, shares the same 4,100-foot length but is only 20 feet wide with an asphalt-turf surface, and it is used primarily for glider operations run parallel to the main runway.
Is fuel available at Boulder Municipal Airport?
Boulder Municipal Airport offers both 100LL and Jet A fuel. The 100LL grade is available via self-serve around the clock, per the field's remarks. Attendance and standard services otherwise follow the published 0800-1700 daily schedule, so pilots needing attended fuel service or other support should plan around those hours.
Can simultaneous operations be conducted on KBDU's two runways?
No, simultaneous runway operations on 8/26 and 8G/26G are prohibited at KBDU. Simultaneous approaches and departures between the main runway and the glider runway are also not authorized. Powered aircraft must yield to gliders on final approach or execute a go-around to maintain adequate spacing, reflecting the airport's active glider traffic.
Where can pilots clear customs near Boulder Municipal Airport?
Boulder Municipal Airport does not have customs service onsite. The nearest customs facility is at KBJC, located approximately 9.3 nautical miles away. Pilots requiring customs clearance in this area of Colorado should plan their arrival through KBJC rather than KBDU.