Revisit the full itinerary
Check whether a change adds another transit country or alters the destination. New connections can create different document questions and airline procedures.
Compare passport validity and entry requirements with the revised plan. Use official destination information for current rules and the airline for its check-in process.
Keep the essentials accessible
Have booking references, accommodation details and useful contacts close. Read travel advice again before departure when the new route is settled.
This article offers general information. Requirements depend on the traveller and itinerary; confirm current rules with the appropriate authorities.
