The '6-month rule' means many countries refuse entry if your passport expires less than 6 months after your arrival. Most of Asia, Africa, the Middle East, and South America enforce it; the Schengen area requires only 3 months beyond departure; Canada, Mexico, Japan, and the UK require only validity for the duration of stay — but airlines often enforce 6 months anyway.
How the rule works
Countries want assurance your document won't expire mid-stay, leaving you stranded or unable to be deported. The check happens twice: the airline verifies validity at check-in (they get fined for transporting inadmissible passengers), then border control checks again.
There is no single global standard — the requirement depends on your destination and sometimes your nationality. As a U.S. citizen, the safest rule: never travel internationally with under 6 months remaining.
Countries by validity requirement
Always confirm on the country-specific page — requirements in our database cover 190+ destinations.
| Requirement | Examples |
|---|---|
| 6 months beyond arrival | China, Thailand, Vietnam, Egypt, UAE, Saudi Arabia, Brazil (recommended), India, Kenya, Indonesia |
| 3 months beyond departure | Schengen area: France, Italy, Spain, Germany, Greece + 24 more |
| Duration of stay only | Canada, Mexico, Japan, United Kingdom, Bermuda, Morocco |
| Must be valid on arrival | New Zealand (3 months post-departure recommended), Australia (duration of stay) |
The airline problem
Even where the 6-month rule isn't law — Mexico, Canada, Japan — many airlines apply it at check-in because staff default to the strictest standard (Timatic, the industry database, lists it conservatively). A valid passport denied at the gate is a valid complaint but a ruined trip.
What to do if yours is too close
- Renew now — routine processing runs ~4-6 weeks (renewal guide)
- Traveling in under 14 days? Use expedited options — couriers can turn it around in 24-72 hours
- Check exact rules for your destination on our visa requirements pages
The 6-Month Passport Validity Rule: Which Countries Enforce It — FAQ
Can I travel if my passport expires in 5 months?
Does the 6-month rule apply to connecting flights?
My child needs a passport — does the rule apply to kids too?
Does the 6-month rule apply to cruises?
Country entry requirements
Related guides
Entry rules change without notice. Always verify with official government sources (travel.state.gov, embassy websites) before booking. Last reviewed October 2026. This page may contain partner links — see our affiliate disclosure.