Airline Baggage Allowances Explained (Before You Get to the Gate)
Your allowance depends on fare and airline, not on aircraft: full-service economy typically includes a cabin bag plus a checked bag on long-haul, while low-cost base fares often include only a small under-seat bag — everything else is paid.
Airline Baggage Allowances Explained (Before You Get to the Gate): questions people actually ask
Does economy include a checked bag?
On full-service long-haul, usually yes (20–23 kg). On low-cost base fares, almost never — it is an add-on.
What happens if my cabin bag is overweight at the gate?
Expect a gate fee, which is typically the highest version of the baggage charge. Pre-booking baggage online is cheaper.
Do infants and children get baggage allowances?
Children do; infants on laps usually get a small allowance plus a pushchair. Check the airline’s family policy.
The three bag types
Personal item: under the seat (laptop bag or handbag size). Cabin bag: the overhead bin roller, size-limited per airline. Checked bag: the hold, with a weight allowance typically 20–23 kg economy on full-service long-haul.
Low-cost fare family traps
The advertised low fare usually covers only the personal item. Cabin bags and hold bags are add-ons whose price rises near departure — buying baggage at booking is almost always cheaper than at the gate, where fees peak.
Interline and codeshare wrinkles
On connecting itineraries the most restrictive allowance usually applies across the ticket. Codeshares can apply the marketing carrier’s rules — check the operating airline’s table before assuming your usual allowance.
Why does your baggage allowance depend on route and fare?
The same airline applies different rules on different continents — a transatlantic economy ticket and a US domestic ticket on the identical carrier can carry different bag counts. The deciding factor is the fare class letter printed on your booking, not the airline name on the tail, which is why the allowance is a check at booking time rather than at packing time.
Weight-versus-piece systems, the personal-item reality at the gate, and paid-seat bundled baggage all change the effective answer — the personal-item and bag-count guides carry the enforcement details.
Whose rules apply on a connection?
On a single interline ticket, bags are checked through under the most restrictive allowance among the segments. On a self-transfer, no such rule exists: you collect and recheck, and each ticket enforces its own limits and fees — the connection inherits the strictest regime of all.
That asymmetry is one more reason the self-transfer decision is made with baggage in hand, not after it.