IATA Consultant common mistakes
IATA Consultant · Understand the traps and how to avoid them.
Treating IATA numeric codes as interchangeable - for example writing a three-digit city code where an airline numeric code belongs, or confusing an IATA two-letter airline designator with its three-letter ICAO designator when a question asks for the code shown on a ticket.
Candidates memorise lists of codes without learning what each code type identifies or where it appears in the journey (city vs. airport vs. airline accounting vs. airline operational). Under time pressure the familiar-looking number gets picked regardless of the category the question names.
What to do instead
Build a one-page code taxonomy and drill by category, not by list: two-letter airline designator, three-letter ICAO designator, three-digit airline accounting code, three-letter city code, three-letter airport code. For each, write one sentence on what document or system it appears in, then practise 20 mixed items where you must first name the category before choosing the answer.
Answering geography and time-zone questions from memory of the destination rather than from the direction of travel - for example assuming a flight eastward always loses calendar days, or mis-stating elapsed time by ignoring the date line crossing.
Everyday travel experience is sparse and asymmetric: most candidates have flown more in one hemisphere than the other, so intuition about north/south seasonality and east/west date change is unreliable. The exam deliberately tests the general rule, not the familiar route.
What to do instead
Work elapsed-time and date-change questions with a written procedure every time: local departure time, UTC offset of origin, flight duration, UTC offset of destination, then convert. For seasonality, state the rule out loud (northern summer is southern winter; the tropics have wet and dry seasons rather than four seasons) before reading the options.
Confusing the roles of the carrier, the validating carrier, and the marketing carrier on a multi-airline itinerary, and therefore mis-answering who is responsible for the fare, the ticket, or carriage.
The terms sound similar and candidates learn them from a single example where all three are the same airline, so the distinction never becomes visible. Questions that split the roles expose the gap.
What to do instead
Learn the definitions as three separate one-line rules and attach each to a document: the validating carrier is the airline whose plate and accounting code appear on the ticket and who owns the fare calculation; the marketing carrier is the airline whose flight number is shown; the operating carrier actually flies. Then take five interline itineraries and label all three roles on each before checking any answer.
Treating minimum connecting time as a single airport-wide number, so a question about a terminal change, an international-to-domestic transfer, or a separate-ticket connection gets answered with the standard domestic figure.
Candidates memorise one MCT value per airport and never learn that MCT varies by terminal pair, by direction (domestic to international differs from international to domestic), by carrier, and by whether baggage must be reclaimed. Separate tickets carry no protected connection at all.
What to do instead
Study MCT as a table with rows for terminal pair and direction rather than a single figure, and add a written rule that separate tickets have no MCT protection and no involuntary rebooking right. Practise connection questions by first stating which terminal pair and direction applies, then selecting the time.
Mixing up the baggage liability regimes - applying the Montreal Convention weight limit to a US domestic segment, or quoting the older Warsaw limit for a journey where Montreal applies - and ignoring that the limit is per passenger, not per bag.
The two conventions share vocabulary and the limits have changed over time, so candidates retain a remembered number without the conditions attached to it. Questions that specify the itinerary direction are designed to catch exactly this.
What to do instead
Write the applicability rule first (Montreal for most international carriage among states party to it; US domestic carriage governed by the carrier's own tariff and DOT rules), then the limit and the fact it is per passenger. Rehearse with three short scenarios where you must name the governing regime before quoting any figure, and never quote a limit you cannot tie to a regime.
Reading a fare as a single price rather than as a set of conditions, and choosing the cheapest fare basis in a scenario where its advance-purchase, minimum-stay, or change penalties make it unusable for the passenger's stated plans.
Fare displays foreground the amount and background the rules, so candidates optimise on the visible number. Exam scenarios almost always include a constraint (a date change is likely, a stay spans a Saturday, travel is tomorrow) that invalidates the cheapest option.
What to do instead
Adopt a fixed order of work for every fare question: extract the passenger's constraints from the scenario, list them, then test each candidate fare against the constraints before comparing price. Practise by writing the constraint list first and only then looking at the fare options, so price cannot anchor the decision.
Applying the fare calculation and mileage principles without the directional logic - building a fare construction that prices each segment separately, or ignoring the maximum permitted mileage and the surcharge that applies when it is exceeded.
Candidates learn the mechanics of the calculation (NUC conversion, rounding, IATA rate of exchange) but not the logic that governs whether a through fare may be used at all, so they compute correctly on an invalid construction.
What to do instead
Separate the topic into two passes and never merge them: pass one decides whether the journey qualifies for a through fare (direction, via points, transfer rules, maximum permitted mileage), pass two does the arithmetic. Drill pass one alone on ten itineraries by writing 'valid through fare yes/no and why' before touching any numbers.
Confusing reservation status codes with segment or service codes - treating HK, HL, HN, UC, and UN as interchangeable, or misreading an SSR such as a special meal or wheelchair request as a confirmed seat.
The codes differ by one letter and the distinctions matter only in edge cases (waitlisted, holding confirmed, unable to confirm), which candidates rarely encounter in their own travel. The exam tests the edge cases precisely because they drive airport and rebooking decisions.
What to do instead
Make a two-column table: status code and its operational meaning for the passenger and for the agent. Learn the difference between a segment status (is the flight confirmed?) and an SSR (is a service requested, and is it confirmed?). Then read five realistic PNR extracts and state, for each, whether the passenger has a confirmed seat and a confirmed service.
Handling a disruption scenario by quoting the passenger's legal rights from the wrong jurisdiction, or promising a hotel and meals as a universal entitlement regardless of the cause of delay and the rules of the operating carrier's country.
Candidates generalise from a single well-publicised regulation and apply it worldwide. In reality compensation depends on jurisdiction, on whether the cause is within the carrier's control, and on the ticket's own conditions, so a confident universal answer is usually wrong.
What to do instead
Learn a three-question frame and apply it to every disruption question: where did the disruption occur and which jurisdiction's rules apply, was the cause within the carrier's control, and what does the fare rule and conditions of carriage say. Answer only after all three are stated; if the scenario lacks one, the correct response is often that the entitlement cannot be determined.
Responding to a service or counselling scenario with a product recommendation before establishing the passenger's constraints, and failing to document the transaction - no record of what was advised, no PNR remark, no confirmation of the passenger's acknowledgement of restrictions.
Candidates treat customer service as a personality trait rather than a procedure, so they answer warmly but unsystematically. The exam rewards the sequence: needs, options, advice, confirmation, documentation, and it penalises advice given without a record.
What to do instead
Memorise a short counselling sequence and use it as the skeleton for every service answer: establish needs and constraints, present suitable options with their conditions, confirm the passenger understands the restrictions, then document the advice in the record. Practise by writing the sequence out and mapping each exam option to the step it represents, discarding options that skip a step.