Another advantage(?) of checking in online is (apart from known seat allocation), If there is a queues at check in, you can go th baggage drop (if you have bags) where the queues are generally shorter.
However it doesn't work at all airports. I flew with Monarch Scheduled and checked in on line both ways. It worked fine in the UK but the return leg was a bit of a fiasco as the check-in clerk would not accept my preprinted boarding cards. She would only check me in in the normal way. I needn't have bothered visiting the Internet Cafe to check in for the flight home.
Last edited by Dawdler; 28th Apr 2011 at 22:53.
Reason: spelling (!)