Deconstructing the Base Fare
The number that first catches your eye—the base fare—is simply the airline's charge for transporting you from point A to point B. In today's competitive aviation market, carriers use this low figure as a powerful marketing tool to attract customers. This
practice, known as 'unbundling,' separates the core service of the flight from everything else. Think of the base fare as the price for just the seat itself. A decade ago, this price might have included a meal and checked baggage, but that model is now largely history. Airlines now generate a significant portion of their income from ancillary, or extra, services, which means the base fare is just the starting point of your total expenditure.
The Non-Negotiable: Taxes and Levies
A significant chunk of the extra cost comes from mandatory government taxes and statutory fees, over which airlines have no control. Every ticket includes a Goods and Services Tax (GST), which is 5% for economy class and was raised to 18% for business class as of late 2025. Beyond GST, you will also see an Aviation Security Fee (ASF), which funds the security services at airports. While individually small, these compulsory charges are collected by the airline and passed on to government bodies, forming a fixed addition to every ticket price.
For the Airport: UDF and Other Fees
Another layer of charges goes directly to the airport operators for infrastructure development and maintenance. The two most common are the User Development Fee (UDF) and the Passenger Service Fee (PSF). The UDF is particularly notable as it varies significantly from one airport to another and is used to finance the construction and modernisation of terminals and runways. Recently, passengers have seen steep hikes in UDF at several privatised airports across the country, sometimes increasing by several hundred percent over a few years, making it a contentious component of the final ticket price. These fees are approved by the Airports Economic Regulatory Authority (AERA) but are a direct cost passed on to the traveller.
The World of Ancillary Charges
This is where the costs can truly add up, as these 'optional' services often feel essential. The most common ancillary charges include fees for selecting a seat—whether you prefer a window, aisle, or extra legroom. While recent government directives have pushed for more seats to be available for free selection, airlines still charge for a significant portion of preferred spots. Checked baggage is another major cost, with many low-cost carriers now offering 'zero-baggage' fares where you must pay for any luggage beyond a small cabin bag. Other common add-ons include pre-booked meals, travel insurance that may be pre-selected in your booking flow, and charges for priority boarding. These services, which generate a growing percentage of airline revenue, are the primary reason the final price often looks so different from the advertised one.
The Booking Platform's Cut
Finally, there’s the often-debated 'convenience fee'. This charge is levied by the airline or online travel agent simply for the service of booking the ticket online using a credit or debit card. While it’s presented as a fee for providing a booking facility, it is essentially a processing surcharge that gets added at the final payment step. Though the DGCA has mandated that this fee be displayed clearly before the final payment, it remains a frustrating final addition for many travellers who feel it's a cost for a service that should be standard in the digital age.
