ATIS vs NOTAM explained: compare purpose, content, timing and pilot use, including why an ATIS broadcast never replaces a NOTAM briefing.
ATIS is a frequently updated airport broadcast giving pilots current weather, runway, approach and operational information. A NOTAM is a formally issued notice about a hazard, closure or change affecting flight operations over a stated place and period. ATIS supports immediate terminal decisions; NOTAMs form part of the wider pre-flight briefing.
Within our Aviation & Real-World Flying coverage, we treat ATIS and NOTAMs as complementary sources, not alternatives. Our explanation of how pilots use ATIS information codes covers the broadcast workflow; saying “with Alpha” confirms receipt of that ATIS edition, not every applicable NOTAM.
ATIS and NOTAM compared
ATIS is a local operational snapshot, while a NOTAM is a published notice with defined applicability and validity.
| Feature | ATIS | NOTAM |
|---|---|---|
| Primary purpose | Reduce repetitive radio calls by broadcasting current terminal information | Notify airspace users of hazards, outages, restrictions and operational changes |
| Typical coverage | One airport and its immediate terminal operation | An aerodrome, route, procedure, navigation aid, airspace area or other affected facility |
| Delivery | Continuous recorded voice broadcast or digital ATIS | Text or structured data obtained through an aeronautical briefing system |
| Timing | Reissued when reportable weather or operational information changes, with a phonetic code such as Alpha or Bravo | Has an effective period, conditions and location; it may be cancelled, replaced or marked permanent pending publication elsewhere |
| Pilot action | Obtain it before contacting the relevant controller and report the information code | Review applicable notices during planning and check for updates as required |
ATIS normally includes local weather, runway and approach in use, and other immediate operational details. It is broader than an automated weather broadcast, as our comparison of ATIS with AWOS and ASOS explains.
NOTAMs cover matters such as runway or taxiway closures, unserviceable navigation aids, lighting failures, cranes, airspace restrictions and temporary procedure changes. Some affect the departure or destination airport; others may apply hundreds of miles along the route.
Can ATIS include NOTAM information?
Yes, ATIS may repeat selected NOTAM information that is immediately relevant to operations at that airport.
For example, an ATIS recording might state that a taxiway is closed or an approach is unavailable. That does not mean the broadcast contains every NOTAM for the airport, route, alternate airports or surrounding airspace. ATIS has limited broadcast time and is designed for concise terminal information.
A common mistake we see is treating an ATIS code as proof that the entire aeronautical briefing is complete. It proves only that the pilot has received the identified ATIS edition.
Does receiving ATIS replace checking NOTAMs?
No. Pilots still need an appropriate NOTAM briefing even after receiving ATIS.
- During flight planning: review notices affecting the departure, destination, alternates, route, airspace, procedures and navigation facilities.
- Before departure: check for new, replaced or cancelled notices according to the applicable operating procedure.
- Near departure or arrival: obtain the latest ATIS for immediate weather, runway, approach and airport information.
- Before acting: resolve any discrepancy rather than assuming the shorter or newer-looking message overrides the other.
The exact briefing source and update requirements depend on the country, operator and type of flight. The principle does not change: NOTAM first for published applicability; ATIS for the immediate terminal picture.
What about ATIS and NOTAMs in flight simulators?
A simulator’s built-in ATIS may model weather and runway selection without modelling the real NOTAM system. A runway can therefore be NOTAM-closed in the real world yet appear usable in the simulator, or custom scenery may show construction that the simulated ATIS never mentions.
When reproducing a real flight, do not infer that a facility is operational merely because the simulator permits its use. Decide whether the session follows real-world notices, the simulator’s generated conditions or a multiplayer network’s operational instructions, then apply that choice consistently.
What if ATIS and a NOTAM appear to conflict?
Treat an apparent conflict as unresolved until its timing, scope and status have been checked.
Compare the ATIS observation and issue time with the NOTAM’s effective period, usually expressed in UTC. Also check location identifiers, daily time windows, conditions and whether another notice has replaced or cancelled it. A future closure or a restriction active only during specified hours can easily appear contradictory when it is not.
If both genuinely seem applicable, ask the relevant controller or operational briefing provider before proceeding. ATC can issue an amended clearance or pass newer information, but a clearance does not automatically cancel a NOTAM, remove a closure or authorise a regulatory violation. Our guide to ATC instructions and recorded airport information explains that distinction.