49IL in 20 seconds
Walnut Creek Airport serves Somonauk, US.
AirportRoutes · updated Dec 8, 2025
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Common questions about 49IL
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Where is Walnut Creek Airport located?
Walnut Creek Airport is located in Somonauk, US, at an elevation of 666 ft. Its IATA code is — and ICAO code is 49IL.