Sontimer Airport

Saint Peters, US πŸ‡ΊπŸ‡Έ Closed Airport

ICAO

US-10155

IATA

-

Elevation

443 ft

Region

US-MO

Local Time

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Airport Information

GPS Code: Not available

Local Code: Not available

Location: 38.808673Β° N, -90.613522Β° E

Continent: NA

Type: Closed Airport

Keywords: 46MO Sontheimer

Terminal Information Not Available
Terminal arrivals and departures are only available for airports with scheduled commercial service and IATA codes.

External Links

Nearby Points of Interest

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For Pilots

Designation Length Width Surface Status

Type Description Frequency

Ident Name Type Frequency

Airport Closure Information

Last updated: Nov 21, 2025
Closure Date

Circa 1981-1982. The airport was last depicted on the 1981 St. Louis Sectional Chart and was officially listed as 'Airport Closed' in the 1982 AOPA Airports USA directory.

Reason for Closure

Urban encroachment and economic factors. The rapid suburban growth of St. Peters during the late 1970s and early 1980s made the land significantly more valuable for residential development than for use as a private airfield. The property was sold and redeveloped to meet housing demand.

Current Status

The airport site has been completely redeveloped and no longer exists. The land is now occupied by a dense residential neighborhood, specifically the Tanglewood subdivision, and is adjacent to Laurel Park in St. Peters. There are no visible remnants of the runway, hangars, or any other airport infrastructure.

Historical Significance

Sontimer Airport was a small, privately-owned general aviation airfield. It was established sometime between 1968 and 1972 and was owned by William Sontimer. The airport featured a single unpaved turf runway, designated 18/36, with a length of approximately 2,100 feet. It primarily served local private pilots and their light aircraft, contributing to the general aviation community in St. Charles County before the area became heavily developed. It was never a commercial or military facility and its significance was purely local.

Reopening Prospects

None. The prospect of reopening Sontimer Airport is zero. The land has been fully and permanently repurposed for residential use. Reacquiring the numerous private properties, demolishing the homes, and reconstructing an airport in a now-populated suburban area is legally, financially, and politically impossible.

Nearby Airports

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Columbia Regional Airport
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St. Louis Lambert International Airport
STL β€’ KSTL
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Spirit of St Louis Airport
SUS β€’ KSUS
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~17 km away
St Louis Regional Airport
ALN β€’ KALN
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Scott AFB/Midamerica Airport
BLV β€’ KBLV
Belleville, US
Medium Airport Scheduled Service
~74 km away
Quincy Regional Airport Baldwin Field
UIN β€’ KUIN
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Medium Airport Scheduled Service
~135 km away
Columbia Regional Airport
COU β€’ KCOU
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Medium Airport Scheduled Service
~139 km away
Abraham Lincoln Capital Airport
SPI β€’ KSPI
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Medium Airport Scheduled Service
~140 km away
Waldmeister Farm Airport
45MO
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Barnes St Peters Hospital Heliport
8MO0
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Progress West Hospital Heliport
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Brussels Heliport
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Distances are approximate and calculated as straight-line distances.