The great thing is you only have to renew every 10 yrs. My DH had to travel to Japan with his company , so he's had his renewed twice - so simple to do - just don't let it expire!
FWIW, you can renew up to 5 years after it expires.
Renew by Mail if All of the Following are True:
Your Most Recent U.S. Passport:
....
Was issued within the last 15 years
Within the last 15 years = the 10 years it was valid for, plus 5 years of being expired. I totally took advantage of that a few years ago, so it definitely works!
I know that. I did say closed loop cruises and US airports. IIRC, it is also good for Canada /Mexico border crossings.
I knew the limitation for international airports when we purchased them. We only fly in the US and take closed loop cruises. (whereas a birth certificate would suffice- but that is another discussion)
Of course it works for *domestic* flights; it's a form of photo ID. Anyone saying that it doesn't work for airlines absolutely positively means *international*, there's NO reason to think they meant that it doesn't work for domestic air travel. Heck, a friend of mine used her EXPIRED passport for identification for domestic airline travel. (you don't even HAVE TO have photo ID...just bring what you have and give yourself plenty of time, and an innocent person can get on a domestic-destination flight if they can find enough info on you)
And it's well known that *certain* closed-loop cruises don't require a passport.
Thing is...there's no NEED to get a passport card for closed-loop or domestic travel! The NEED for the passport CARD is for those going to Mexico and Canada by land.
those of us wanting the OP to make SURE she doesn't want to get the passport are talking about international travel where she would NEED the proper passport.
110 plus 25 for the book...140 plus 25 for the proper passport....it's really not THAT much of a difference but you get a whole, literal, WORLD for the passport vs the card.
(what I don't understand is the concept of getting the card AND the passport...if you have a passport, what do you need the card for???)