Check Baggage Rules on a Multi-Airline Trip

List each flight number, operating airline, booking reference and ticket number. A codeshare flight may be sold by one airline and flown by another. Mark clearly whether the flights are on one ticket or separate purchases; do not guess from the fact that they appear in one itinerary email.

Open the baggage page or booking confirmation tied to each segment. Save the current allowance and any prepaid baggage receipt. If details conflict, ask the airline that issued the ticket for a written explanation before departure.

Compare cabin and checked limits for every segment, including personal items. Use the strictest limit only as a planning shortcut; the official allowance for each leg still controls at check-in or boarding. Weigh the packed bag, not only the empty suitcase.

A small regional aircraft can have different cabin handling. Verify rules for batteries, medicines and special equipment from the operating carrier and relevant airport rather than relying on a generic packing checklist.

For each connection, ask whether the bag will be tagged to the final airport or must be collected and checked in again. Separate tickets, border formalities and airport changes can require collection even when the flights look connected on a map.

If you must reclaim a bag, add time for immigration, the carousel, customs, moving terminals, security and the next check-in deadline. A short transfer that works with cabin baggage may fail with a checked case.

Store ticket references, baggage receipts and the carrier's reply offline. Put essential medicine, documents and one change of clothes in compliant cabin baggage. Check the baggage tag destination when handing over the case.

If a connection is missed or a bag is delayed, speak to the responsible airline at the airport and keep the report number. Do not assume a separately booked onward carrier will protect the next flight. The itinerary plan should include a safe fallback, not only the fastest connection.