Alton Airport
Daylight today(Aug 30, 2026, local time)
About 13h 3m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Alton Airport
Alton Airport is a small airport in Alton, United States. It sits at an elevation of 766 ft (233 m). It observes America/Chicago local time. The nearest airport is Thayer Memorial Airport (K42M), about 13.8 nm to the sw.
Summary generated from this airport’s structured data — reference only.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (0)
No runway data recorded for this airport.
Airspace in this area(1)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| LINDBERGH C 0900-1030 & 1300-1430 MON-FRI & BY NOTAM | Special use | Danger | 8000 ft MSL | 17999 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Nearby airports
Great-circle distance and true bearing from Alton Airport.
Frequently asked questions
Where is Alton Airport located?
Alton Airport is small airport located in Alton, United States, at an elevation of 766 ft (233 m).
What time zone is Alton Airport in?
Alton Airport is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Alton Airport?
The magnetic variation (declination) at Alton Airport is approximately 1.1° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Alton Airport?
The nearest airport to Alton Airport is Thayer Memorial Airport (K42M), about 13.8 nm to the sw, followed by Howell Valley Airport and Mountain View Airport.
Is the information on this page suitable for flight planning?
No. Alton Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.