How strict are Istanbul airport carry-on baggage size checks? (Ajet and other airlines)

If a cabin bag exceeds the limit, a soft duffel or backpack may sometimes fit into the sizer, while an oversized rigid suitcase is very unlikely to pass. If the suitcase is essential, it is better to add checked baggage on the airline’s website in advance; otherwise, travel with a soft bag.

Recent reports from AJet domestic flights suggest that carry-on checks can be very light: some passengers were allowed through with standard small cabin suitcases without any weighing or measuring. This does not override the official limits, but it indicates that enforcement can be selective on some flights.

At Sabiha Gökçen airport, self-service scales are located in the departures area before the check-in counters, near the luggage wrapping stations. Travellers report that carry-on bags are sometimes not checked at all at check-in.

Ajet's official carry-on limit is 40×30×15 cm, up to 4 kg. A bag measuring 45×26×14 cm technically exceeds the length limit (45 vs. 40 cm). Even if other dimensions are smaller, one oversized parameter can result in the bag being rejected at the gate.

At Istanbul airports, carry-on bags can be checked multiple times — at check-in, at the gate, and just before boarding. Staff often physically measure bags, so it's risky to assume a slightly oversized bag will slip through.

In addition to the main carry-on (36×30×27 cm), some airlines allow a small personal item free of charge — a backpack up to 12×36×30 cm, a handbag, or a briefcase. Always check your specific airline's rules before flying.

A small bag of sweets around 23×18×18 cm typically qualifies as a personal item — it's well within most size limits. Still, it's safest to pack it inside your main bag or be ready to show it separately if asked.

Budget carriers operating through Istanbul typically offer no complimentary food or drinks — they function as no-frills shuttle flights. Water may be provided on request, but don't expect any in-flight service.