Should you memorize passport number?
Should you memorize passport number? A valid alternative is to memorize your passport number and the expiry date, so that when required, you will not need to “pull out” the original.
Can you travel with an incorrect passport?
Any error on your passport MUST be corrected otherwise your passport may not be considered valid to use for travel. If the error is a minor error (minor spelling error for example), then you may be able to still use that passport for travel and update it once you return.
Can I change passport number after booking a flight?
You can go to the Airline's website to “manage my reservation”, and update your passport information there. If you have a problem you can call the airline, or contact them through social media.