Wittman Regional (KOSH), Wisconsin
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Wittman Regional Airport, KOSH, serves Oshkosh, Wisconsin with four paved runways, including an 8,002-foot main runway capable of handling a wide range of business aircraft. The field is towered and sits roughly 47 nautical miles from the nearest metro area, with fuel available in 100LL and A+ grades and Jet A on the field. Annual operations recorded through FAA TFMSC for 2025 total 5,486, with business aviation accounting for 3,268 of those movements. Customs processing is not available onsite; the nearest facility is Appleton International, about 16.52 nautical miles away.
Runways
Wittman Regional has four paved runways. The longest, 18/36, is 8,002 ft long and 150 ft wide, with a concrete surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Wittman Regional has Jet A+ and 100LL available on the field. The airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Wittman Regional does not clear customs. The nearest port of entry is Appleton International (KATW), 17 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Wittman Regional recorded 3,268 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at KOSH concentrates heavily in July, when operations climb to nearly three times the level seen in most other months of the year.
Business jet movements, FAA TFMSC count. Peak month July, 736 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Wittman Regional averages 2.8 days above 90°F in July and 29.7 freeze days in January. July is the warmest month, with average highs of 81.3°F, and January the coldest, at 26.0°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Wittman Regional has published operating constraints in four categories: access, runway notes, environmental and other notes.
Runway 23 and runway 27 approach ends are closely aligned. Verify the correct runway and compass heading prior to departure.
When the control tower is closed, pilots activate the MALSR on runway 36, REIL on runways 18 and 27, and HIRL on runways 09/27 and 18/36 via CTAF. HIRL on runway 18/36 is preset to low intensity from sunset to sunrise and can be increased in intensity and activated via CTAF. PAPI on runways 09, 27, 18, and 36 operates continuously.
The approach ratio is 34:1 to the displaced threshold.
Runways 13/31, 05/23, and taxiways C, H, and P are not available to aircraft with more than 30 passenger seats.
Birds are present on and in the vicinity of the airport.
A+ and 100LL fuel are available for a fee after hours.
For clearance delivery, if unable to contact on the FSS frequency, contact Chicago ARTCC.
Surface conditions are not monitored between 2200 and 0500 hours.
Source: FAA Chart Supplement.
Nearby airfields
Wittman Regional has five airfields within 35 NM. The closest is Fond Du Lac County (KFLD), 13.14 NM south.
Part of the Milwaukee and Madison area.
Source: Skystar calculation from official coordinates.
Skystar at KOSH
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 KOSH.
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 KOSH?
Wittman Regional Airport, KOSH, operates four paved runways. Runway 18/36 is the longest at 8,002 feet with a 150-foot width and a concrete surface. Runway 09/27 offers 6,179 feet, also 150 feet wide and concrete. Two shorter asphalt runways, 05/23 at 3,424 feet and 13/31 at 3,061 feet, are each 75 feet wide. Runways 13/31 and 05/23 carry restrictions for larger aircraft, detailed separately in airport remarks.
Is there a restriction on aircraft using certain runways at KOSH?
Yes, Wittman Regional Airport restricts runways 13/31 and 05/23, along with taxiways C, H, and P, from use by aircraft with more than 30 passenger seats. This limits those surfaces to smaller general aviation and business aircraft. Operators of larger transport-category equipment should plan on runway 18/36 or 09/27, both of which are longer, wider, and unrestricted by this passenger-seat limitation. Dispatchers planning flights into KOSH with higher-capacity aircraft need to account for this when filing runway preferences.
How does KOSH handle customs and international arrivals?
Wittman Regional Airport, KOSH, does not have onsite customs processing. The nearest customs facility is at Appleton International, KATW, located approximately 16.52 nautical miles away. Operators arriving from international origins need to route through KATW or another customs airport before or after landing at KOSH. This absence of onsite customs should factor into trip planning for any flight crossing a border into Oshkosh.
When is the control tower staffed at KOSH?
The Wittman Regional Airport attendance schedule runs Monday through Friday from 0700 to 1900 local time, and Saturday through Sunday from 0800 to 1700. Outside these hours, the airport reverts to pilot-controlled lighting procedures on CTAF, activating the MALSR on runway 36, REIL on runways 18 and 27, and HIRL on runways 09/27 and 18/36. HIRL on 18/36 stays preset at low intensity from sunset to sunrise and can be increased via CTAF. PAPI on runways 09, 27, 18, and 36 operates continuously regardless of tower hours.
What is the seasonal traffic pattern like at KOSH?
Wittman Regional Airport sees a sharp spike in business aviation operations during July, with 736 operations recorded against a monthly average closer to 250 for the rest of the year, according to FAA TFMSC data for 2025. Every other month ranges between roughly 164 and 291 operations, showing comparatively steady activity. This July concentration means ramp space, fuel availability, and parking should be confirmed well ahead of arrival during that month. Dispatchers scheduling trips into KOSH outside of July can expect more typical general aviation traffic levels.