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Reference only — not for real-world navigation.

3IN7

Chain-O-Lakes Airport · South Bend

Key Facts

Essential technical summary for MSFS 2020/2024 and X-Plane.

ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
743 ft / 226 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Chain-O-Lakes Airport (3IN7), located in South Bend, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 3 active runways with a maximum elevation of 743 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.

Airport Details

Full geographical and organizational metadata.

Full Name
Chain-O-Lakes Airport
ICAO / IATA
3IN7 / —
Municipality
South Bend
Country
Region
US-IN — Indiana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
743 ft

Pilot Toolbox

External charts, live tracking and weather reports.

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Runways & ILS Approach Data

Detailed dimensions and instrument landing frequencies.

Runway 15 / 33
UNLIT
Runway Length: 2,100 ft / 640 m
Runway Width: 125 ft / 38 m
Surface Type: TURF-SAND-F
Heading: —° / —°
RWY 15
No ILS / Visual Only
RWY 33
No ILS / Visual Only
Runway 06 / 24
UNLIT
Runway Length: 1,500 ft / 457 m
Runway Width: 110 ft / 34 m
Surface Type: TURF-SAND-F
Heading: —° / —°
RWY 06
No ILS / Visual Only
RWY 24
No ILS / Visual Only
Runway 09 / 27
UNLIT
Runway Length: 1,330 ft / 405 m
Runway Width: 85 ft / 26 m
Surface Type: TURF-SAND-F
Heading: —° / —°
RWY 09
No ILS / Visual Only
RWY 27
No ILS / Visual Only

Communication Frequencies

Air traffic control and advisory channels.

No frequency data available.

Nearby Airports

Alternative airports in the vicinity (km & nm).

KSBNILS
South Bend Regional Airport
6 km / 3 nm
KVPZILS
Porter County Municipal Airport
59 km / 32 nm
KGYYILS
Gary Chicago International Airport
88 km / 48 nm
KAZOILS
Kalamazoo Battle Creek International Airport
92 km / 50 nm
KGUSILS
Grissom Air Reserve Base
114 km / 62 nm

Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026