On this page, you’ll find a clear and structured list of standard IATA airline delay codes, grouped by category. Use it to quickly identify the root cause behind operational delays and improve your report accuracy.
PASSENGERS BAGGAGE
11: Late check-in, acceptance of passengers after deadline
12: CHECK-IN, congestion in check-in area
13: Check-in error
14: Oversales, booking errors
15: BOARDING, discrepancies and paging, missing checked-in passenger at gate
16: Commercial Publicity, Passenger Convenience, VIP, Press, Ground meals and missing personal items
17: Catering order, late or incorrect order given to supplier
18: Baggage processing, sorting, etc.
19: PRM, Boarding/Deboarding of passengers with reduced mobility
CARGO/MAIL
21: LATE CARGO, Missing or incorrect Documentation (eg. NOTOC), errors, etc.
22: Late positioning
23: Late acceptance
24: Inadequate packing
25: Oversales, booking errors
26: Late preparation in warehouse
27: Mail Oversales, packing, etc.
28: Mail Late positioning
29: Mail Late acceptance
RAMP/HANDLING
31: LID/LOADSHEET, Aircraft documentation late or inaccurate, weight and balance (Loadsheet), general declaration, passenger manifest, etc. (LID after STD - 8)
32: RAMP HANDLING, Lack of Ground Staff, missing equipment or breakdown.
33: Loading Equipment, lack of or breakdown, e.g. container pallet loader, lack of staff
34: Servicing Equipment, lack of or breakdown, lack of staff, e.g. steps
35: CLEANING, Aircraft Cleaning
36: REFUELLING, Late Fuelling, Defuelling, fuel supplier
37: CATERING, Catering, late delivery or loading
38 (GU): ULD, Containers, pallets, lack of or breakdown
39 (GT): Technical equipment, lack of or breakdown, lack of staff, e.g. pushback
TECHNICAL/DEFECTS
41: TECH DEFETCS, Aircraft defects including MEL procedures
42: SCHEDULED AIRCRAFT MAINTENANCE, late release
43: Non-scheduled maintenance, special checks and / or additional works beyond normal maintenance
44: Spares and maintenance equipment, lack of or breakdown
45: AOG (Aircraft on ground for technical reasons) Spares, to be carried to another station
46: AIRCRAFT CHANGE for technical reasons
47: Standby aircraft, lack of planned standby aircraft for technical reasons
48: Scheduled cabin configuration and version adjustment
DAMAGE TO AIRCRAFT
51: DAMAGE DURING FLIGHT OPS, bird or lightning strike, turbulence, heavy or overweight landing
52: DAMAGE DURING GROUND OPS, collisions (other than during taxiing), loading/offloading damage, contamination, towing, extreme weather conditions.
EFD, AUTOMATED EQUIPMENT FAILURE
55: Departure Control System, Check-in, weight and balance (loadcontrol), computer system error, baggage sorting, gate-reader error or problems
56: Cargo preparation/documentation system
57: FLIGHT PLAN, Failure of flight plan system, Late flight plan
58: Other computer systems
OPERATION
61: Flight plan, late completion or change of flight documentation
62: OPERATIONAL REQUIREMENTS, fuel, load alteration, Pilot EFB Failure, Weight Change
63: LATE CREW, Late crew boarding or departure procedures
64: Flight deck crew shortage, Crew rest
65: Flight deck crew special request or error not within operational requirements
66: Late cabin crew boarding or departure procedures
67: Cabin crew shortage
68: LATE CABIN CREW, Cabin crew error, late accomodation of pax or special request
69: Captain request for security check, extraordinary
WEATHER
71: Departure station
72: Destination station
73: En route or Alternate
75: DE-ICING OF AIRCRAFT, removal of ice/snow, frost prevention
76: REMOVAL OF SNOW/ICE/WATER/SAND, Removal of contamination from airport/runway
77: ADVERSE WEATHER CONDITION, Ground handling impaired by adverse weather conditions
AIR TRAFFIC FLOW MANAGEMENT RESTRICTION
80: SELF-MANOEUVRING STAND, (Max 4 minutes for B737-800 & A320 / 6 minutes for 8200)
81: SLOT, ATC restriction en-route or capacity
82: ATC restriction due to staff shortage or equipment failure en-route
83: ATC restriction at destination
84: ATC restriction due to weather at destination
AIRPORT & GOVERNMENT AUTHORITIES
85: SECURITY, Mandatory security
86: IMMIGRATION, Customs, Health
87: AIRPORT FACILITIES, parking stands, ramp congestion, buildings, gate limitations, ...
88: Restrictions at airport of destination, airport/runway closed due obstruction, industrial action, staff shortage, political unrest, noise abatement, night curfew, special flights, ...
89: RESTRICTION AT THE AIRPORT OF DEPARTURE, airport/runway closed due obstruction, industrial action, staff shortage, political unrest, noise abatement, night curfew, special flights, start-up and pushback, ...
COMPANY DELAY
91: Passenger or Load Connection, awaiting load or passengers from another flight. Protection of stranded passengers onto a new flight.
92: Through Check-in error, passenger and baggage
93: LATE ARRIVAL FROM PREVIOUS FLIGHT, Aircraft rotation, late arrival of aircraft from another flight or previous sector
94: Cabin crew rotation
95: Crew rotation, awaiting crew from another flight (flight deck or entire crew)
96: OPERATIONAL CONTROL, rerouting, diversion, consolidation, aircraft change for reasons other than technical
MISCHELLANEOUS
97: Industrial action within own airline
98: Industrial action outside own airline, excluding ATS
99: Miscellaneous, not elsewhere specified