Airports US K7A4
Small Airport
K7A4
K7A4

🇺🇸 Foster Field

Apple River, US-IL, US 990 ft America/Chicago
Updated Feb 15, 2026

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K7A4 in 20 seconds
Foster Field serves Apple River, US.
AirportRoutes · updated Feb 15, 2026
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Where is Foster Field located?

Foster Field is located in Apple River, US, at an elevation of 990 ft. Its IATA code is — and ICAO code is K7A4.