Why it happens
- Passport has too little validity left for the destination or the transit country.
- Visa missing, wrong type, or not yet valid.
- No onward or return ticket where the destination requires one.
- A required pre-arrival form or authorisation was not completed. Check the country guides on this site.
- A transit visa is needed at a layover.
What it means for your rights
Under EU air passenger rules, being refused boarding because travel documents are missing can remove your right to compensation, although the airline's own terms may still give you a refund or rebooking. Always ask the airline for the reason in writing.
Check before you fly
- Check passport validity and blank pages against the destination and every transit country.
- Check visa type, entry dates and number of entries.
- Check whether a pre-arrival card or authorisation is needed and use only the official site.
- Check the airline's own document page for your route.
- Carry printed and digital copies of everything.
General information only
This guide is information, not legal or immigration advice. Rules and procedures change, so confirm with the official authority before you act. If you need legal help, speak to a qualified lawyer.
Questions and answers
Is the 6-month passport rule universal?
No. Many countries ask for six months of validity, others three, and some only the length of stay. Check the rule for your destination and each transit stop.
Sources
Facts were read in these sources on 2026-10-18. Reported means a news source said it and we could not confirm it on an official site.