Different check-in regulations depending on the airline
Different airlines have different regulations regarding latest check-in times. Check with your airline before travellling. You must be prepared to show identification so take your ID card or passport with you, depending on where you are travelling.
Self-service check-in machines
Certain airlines offer self-service check-in machines where you check-in yourself and then take care of baggage labelling and check-in. There are also machines for electronic tickets. Tickets and boarding cards are printed when you swipe your credit/debit card. These options are especially convenient when queues are long at the traditional check-in desks.