Arch Reactor Heliport
Daylight today(Aug 31, 2026, local time)
About 13h 4m 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 Arch Reactor Heliport
Arch Reactor Heliport is a heliport in St Louis, United States. It observes America/Chicago local time. The nearest airport is St Louis Downtown Airport (CPS), about 4.2 nm to the se.
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(4)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| ST LOUIS CLASS B AREA E EXCLUDES AREA A,B,C AND D | Class B | Controlled | 3000 ft MSL | 8000 ft MSL |
| ST LOUIS CLASS B AREA G | Class B | Controlled | 3500 ft MSL | 8000 ft MSL |
| ST LOUIS CLASS B AREA L | Class B | Controlled | 5000 ft MSL | 8000 ft MSL |
| CAHOKIA CLASS D | Class D | Controlled | GND | 2900 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Gateway Arch | 630 ft | 430 ft | — |
| Obstacle | 594 ft | 538 ft | — |
| Obstacle | 587 ft | 466 ft | — |
| Buenger Hall - Dorm D | 577 ft | 587 ft | — |
| Obstacle | 558 ft | 459 ft | — |
| Obstacle | 436 ft | 390 ft | — |
| Obstacle | 436 ft | 390 ft | — |
| Obstacle | 400 ft | 505 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Arch Reactor Heliport.
Frequently asked questions
Where is Arch Reactor Heliport located?
Arch Reactor Heliport is heliport located in St Louis, United States.
What time zone is Arch Reactor Heliport in?
Arch Reactor Heliport is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Arch Reactor Heliport?
The magnetic variation (declination) at Arch Reactor Heliport is approximately 2° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Arch Reactor Heliport?
The nearest airport to Arch Reactor Heliport is St Louis Downtown Airport (CPS), about 4.2 nm to the se, followed by King Airport and Aero Estates Airport.
Is the information on this page suitable for flight planning?
No. Arch Reactor Heliport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.