FlightAware operates a worldwide network of Mode S/ADS-B receivers. In addition to typical secondary surveillance data, FlightAware
receives the flight identification that is typed into the transponder or flight management system (FMS).
When entering the flight identification into your transponder or FMS, it is important to use the exact ident that is filed on the
flight plan. For example, if operating Delta Airlines flight 123, enter DAL123 and not DL123, 123, DELTA123, or the tail number.
type in the correct number. Leading zeros (e.g., DAL0123) are accepted but not necessary.
Best flight tracking is provided to aircraft equipped with 1090MHz ADS-B out.
Operators that use call sign similarity (CSS) tools to operate flights as a call sign rather than a flight number should send their ident/flight #
mappings to FlightAware. FlightAware supports a
simple comma separated value (CSV) format called FlightAware Call Sign Disambiguation (FACSD) that can be exported in Excel or from any standard operational/scheduling system.
The first line of the FACSD file is a header that should contain, in CSV format, header fields in the following order:
- Format name: FACSD
- Version number: 1.0
- Flight ident style: ICAO (e.g., SIN) or IATA (e.g., SQ)
- Airport code style: ICAO (e.g., LFPG) or IATA (e.g., CDG)
Each subsequent line is a flight mapping in CSV format in the following order:
- Published Flight Identifier (e.g., BAW123)
- Origin Airport Code (in format speciifed above)
- Destination Airport Code (in format speciifed above)
- Call Sign (e.g., BAW24G)
- Effective From Date (local to flight origin)
- Effective To (End) Date (local to flight origin)
Example #1 (ICAO ident, ICAO Airport Code) - Preferred
Example #2 (ICAO ident, IATA Airport Code)
Example #3 (IATA ident, ICAO Airport Code)
Example #4 (IATA ident, IATA Airport Code)
You can email the CSV file in the body of a message or as an attachment to email@example.com. Please allow one business day
Although we do support position-only flight tracking, our systems work best when we have a flight plan. Accordingly, we recommend
filing and flying IFR, even for local, re-positioning, and test flights.
In FIRs outside of US/Canada/Europe/Australia/New Zealand where we do not receive flight plans from the ANSP, customers of
FlightAware Global can use the FlightAware Flight Plan Advisory System (FPAS) to enter the
summary of a VFR or IFR flight. High volume operators can contact us for API access
to FPAS that can accept automated exports from your scheduling, dispatch, or filing system.