Qatar Airways Booking Based at the Qatar Airways Tower in Doha, Qatar Airways is one of the best options for traveling to or from Qatar. The airline has 237 aircraft in its fleet through which it covers 172 national and international destinations. The airline operated from its various hubs from which the airline's main hub is located at Hamad International Airport. From providing a Qatar Airways online booking option to check-in, you can access all services without going anywhere. Also, if you want to know everything about Qatar Airlines services, you should go through this post since here you will get all the required information. How to check-in online for Qatar Airlines? The check-in desk generally opens 3 hours before departure and closes 1 hour before departure for Qatar Airways Economy flights. For first and business class flights, the check-in desk closes 45 minutes before departure. You can check-in 24 hours prior to scheduled departure for the cheapest Qatar Airways booking departing or arriving in the US. For the check-in desk, it is recommended that everyone arrive at the airport three hours before departure. You can even register via your smartphone by downloading the Qatar Airways app. Mobile phone check-in begins 36 hours prior to departure and ends 90 minutes prior to departure.