Passport validity rules: the free checker that tells you if you will be turned away

Being denied boarding for passport validity is one of the most avoidable travel failures there is — and one of the most common. The passport is in date, the visa is fine, and the airline still refuses at check-in because the destination requires validity beyond the return date.
The free TRAVELYTES™ Passport Validity Checker answers the question in seconds: /passport-checker.
The two rules that catch travellers out
The six-month rule. Many destinations across Asia, the Middle East, Africa and Latin America require your passport to be valid for at least six months beyond your date of entry. Thailand, Indonesia, Vietnam, the UAE, Egypt and Turkey are common examples.
The three-month rule (Schengen). The Schengen Area requires validity of at least three months beyond your intended date of departure from the area, and the passport must have been issued within the previous ten years. Post-Brexit UK passports with extra months carried over from an old renewal are a recurring failure point.
A handful of destinations only require validity for the duration of stay, and some pairs of countries have bilateral exemptions. Always check the destination, not the average.
The rules nobody reads until it is too late
- Blank pages. Several countries require one or two entirely blank pages for entry stamps. A full passport is a refused entry.
- Damage. Water damage, a detached laminate or a torn corner can invalidate a passport at the border regardless of the expiry date.
- Ten-year issue rule. Under Schengen rules an old carried-over extension does not count; issue date matters as much as expiry.
- Onward travel. Airlines check validity against the whole itinerary, not just the first leg.
What the checker does
- Takes your expiry date, issue date and travel dates, then applies the destination rule set.
- Returns a clear pass, caution or fail, with the specific reason.
- Shows the latest date you can safely travel on your current passport, and the date by which you should renew.
- Flags Schengen ten-year issue-date problems that a simple expiry check misses.
It runs in your browser, needs no document upload, and is free.
Renewal timing, in practice
Renew when you are within nine months of expiry if you travel internationally at all. Standard UK processing is normally a few weeks but surges seasonally, and you generally cannot travel on the old book once it is submitted. For business travel programmes, a nine-month renewal trigger removes almost all validity failures from the pipeline.
For teams, not just individuals
Corporate travel and mobility. Passport validity is a compliance risk with a booking cost attached: a denied boarding is a rebooked fare, a lost hotel night and a missed meeting. Add a validity check to the approval step.
Crew, tour operators and cruise lines. High-frequency travellers hit expiry mid-rotation. A scheduled quarterly check across the roster is cheaper than a crew replacement.
Retail and travel-retail partners. A free, genuinely useful checker is an easy thing to hand a customer at the point of sale.
Deployed and contracted personnel. Multi-country movement makes both validity and blank-page requirements harder to track manually.
Then check your Schengen days
Validity and allowance are two separate gates. Once the passport clears, confirm your day count with the Schengen 90/180 calculator — the rules are explained in how to calculate Schengen days without getting banned.
And for the flight itself, the cabin environment is the part travellers underestimate: see how to avoid travel dehydration.
Check your passport now: /passport-checker.
Further reading from Simon Calder (The Independent)
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