Not so long ago, airlines were offering bonus miles for online check-in. While that is no longer true, there are still some real bonuses that make it worth your while to try to hit the computer before you arrive at the airport.
First, the obvious one. A boarding pass in advance, buys a little more time with a late arrival at the airport. Advance boarding passes won’t help with checked baggage cutoffs, or help speed up security lines, but it means the seat won’t automatically be given away 30 minutes before the flight. (Although passengers still must be on board ten minutes in advance.)
Second, while any regular Southwest flier knows that boarding priority generally depends on check-in time, advance check-in can help with seats on other airlines as well. On British Airways, for example, travelers on most discount tickets can only get advance seat assignments when they check in online 24 hours in advance. But most carriers will give passengers a chance to select or change their seat assignments.
Third — and this could be the most important issue — it’s a chance to fix potential problems in advance. If for any reason there’s an issue with the ticket; somehow the computer thinks it’s a paper ticket, there’s a schedule change that didn’t get communicated, a change during the trip caused a mistaken no-show message — the list is endless — finding out before getting to the airport can avoid a last minute nightmare.
Hotels have increasingly recognized the online check-in advantage, and more and more chains are putting boarding pass printers in their lobbies. (Hint: While they’re supposed to be for registered guests, a discreet traveler might be able to use them even when they aren’t staying at the hotel in question. But you didn’t read it here.)
In addition, it’s possible to check in online even without printer access, as most airline systems don’t realize that a boarding passes hasn’t actually been printed when the check-in process is completed. Then the boarding pass can be printed at the airport.
But with or without a boarding pass, the online process at worst takes a few minutes. At best, it can save a trip.


