Booking a flight is the most important thing when you are planning a trip whether domestic or international. While some prefer a more economic option by searching cheap flights, other don’t mind shelling out a little extra for a better class of travel or a superior airline. Goes without saying flight booking online is the way to go about it, the more systematic traveller plans his holidays in advance and hence makes his flight bookings at least a month prior to his travel date. But there are also the impromptu traveller or a business traveller who cannot always plan his trips in advance. Such people prefer to avail the various flight discounts and other offers promising perks when paid through a certain bank using a promo code on a flight booking. For both domestic and international flights out of India, Delhi’s Indira Gandhi International Airport is the veritable hub. The Delhi airport operates flights to all the major metros such as Bangalore, Chennai, Kolkata, Hyderabad, Pune and Mumbai, aside from providing decent non-stop and indirect connectivity to tier 2 and 3 cities and even smaller hill stations. The prominent domestic carriers include Air India, the national carrier, apart from IndiGo, Jet Airways, Vistara, SpiceJet, and GoAir. For international destinations across Europe, America and Asia, the Delhi airport is the hub, and the airlines servicing these destinations include Lufthansa, AirAsia, Emirates, China Southern, British Airways, Etihad Airways, Qatar Airways among others. Some of the busiest flight sectors are Delhi to Mumbai and vice-versa, Delhi to Bangalore and vice-versa, Delhi to Chennai and vice-versa, Delhi to Hyderabad and vice-versa, Delhi to Pune and vice-versa, and Delhi to Kolkata and vice-versa. And cheap flight tickets sales are popularly announced on these routes, and even on popular holiday sectors like Delhi to Goa or Mumbai to Goa. While making your flight booking ensure you correctly enter your travel dates, the number of passengers and your preferred class of travel whether economy, premium economy or business class, and then search. Browse the list of flights available for the date and which one has a more suitable timing.