Passport Validity and the Six-Month Rule

What the six-month rule is

Many countries will not admit a visitor whose passport expires within six months of arrival, and some airlines will not even let you board a flight to such a country if your passport is inside that window. The logic is that a country does not want you there on a document about to expire. It is not universal — some destinations require only that your passport be valid for the length of your stay — but the six-month standard is common enough that it is the safe assumption for international travel.

Check before you book, not at the airport

The worst place to discover a passport problem is the check-in counter, because there is nothing anyone can do for you there. Before you book an international trip, look at your passport's expiration date and count six months back from it — that is the last arrival date many countries will accept. If your trip lands after that, renew before you travel. Confirm your specific destination's rule from an official source, since a handful of countries are stricter or more lenient than the six-month norm.

If your passport is close to expiring

Renewals take time, and processing windows change, so start early — weeks to months, depending on where you are and whether you pay for expedited service. Do not book nonrefundable international travel on a passport you are not sure will clear the destination's rule; the fare is not refundable just because your document fell short. If a trip is urgent and your passport is close, look into expedited renewal before you commit to dates.

• Count six months back from your passport's expiry — that is your safe last-arrival date for most countries.
• Some countries also require a blank visa page or two, so check page count as well as dates.
• A damaged passport can be refused even if the dates are fine — replace a worn one before an international trip.
• Children's passports expire sooner than adults' and are easy to overlook.

Book the trip with the rule built in

Because the requirement depends on your destination and your document, it pays to confirm it before money changes hands. Call (708) 866-8751 and a licensed agent flags the destination's passport rule as you book, so your itinerary is not one an airline turns away at the gate. The agent books the flights; entry itself always rests with the destination's authorities.