It is a common misconception in travel that when an airline offers a ticket for an extremely low price (e.g., €10 or €20), the airport fees and government taxes are somehow waived or paid for by the airline for free.
The reality is that this is false. All mandatory airport fees and government taxes are always included in the final price you pay when booking your ticket, even if the base fare is zero.
Here is a detailed breakdown of how ticket prices are constructed and why mandatory fees can never truly disappear.

1. The Composition of an Airline Ticket Price
A. The Mandatory Taxes and Charges (The Inescapable Part)
This portion is fixed (or relatively fixed) for a given route and is non-negotiable by the airline. The funds collected are mandatory and are passed on to the respective authorities:
| Type of Charge | Purpose | Determined By |
| Airport Taxes (Passenger Service Charge) | Payment for the use of the airport’s infrastructure, check-in facilities, baggage handling systems, and runways. | The specific Airport Authority |
| Government Taxes (e.g., Air Passenger Duty) | Levied by the state/country, covering government services like immigration, customs, and national security oversight. | The Government of the Country |
| Security Fees (Security Surcharges) | Funds mandatory security screening (metal detectors, X-rays, security personnel). | Airport or Government |
| Fuel Surcharge (Carrier-Imposed Surcharge) | Although often listed under “Taxes,” this is a fee imposed by the airline itself to cover fluctuating fuel costs. It is generally unavoidable. | The Airline |
B. The Airline Base Fare (The Flexible Part)
This is the actual amount the airline receives for providing the seat and the flight service. This is the only component the airline can manipulate to run sales or promotions.
2. The Low-Cost Model: Zeroing Out the Base Fare
The mystery of the €20 ticket is solved when you look at how low-cost carriers (LCCs) structure their revenue:
The “Loss Leader” Strategy
When a low-cost airline advertises a ticket for $10 or $20, it is using the “Loss Leader” marketing tactic. They set the Base Fare to zero or even a negative number to attract bookings.
Practical Example:
- Mandatory Taxes and Fees on a route: €18
- Advertised Ticket Price: €20
- Airline Base Fare: €2
In this scenario, the airline only makes €2 profit on the ticket itself, while €18 is directly forwarded to the airport and government.
What if the Advertised Price is only €15?
- Mandatory Taxes and Fees: €18
- Advertised Ticket Price: €15
- Airline Base Fare: -€3
The airline is technically subsidizing the flight by €3 per passenger to guarantee the flight is full.
Why The Airline Does This
The airline does not generate profit from the base ticket price; it generates profit from Ancillary Revenue (add-ons). The cheap ticket acts as bait to get the passenger to book and then pay for the extras:
- Checked Baggage Fees: The single biggest source of non-fare revenue.
- Seat Selection Fees: Paying extra to choose a window or aisle seat.
- Priority Boarding: Paying to board first.
- Web Check-in Fees: (Sometimes charged if not done online in time).
A passenger who books a €15 ticket often ends up paying €50 to €100 for the flight plus all the necessary add-ons, ensuring the airline achieves a large overall profit margin despite the low base fare.
3. Mandatory Disclosure and the Law
Crucially, in Europe and many other regions, consumer protection laws require airlines to display the final, all-inclusive price to the consumer at the initial stage of booking.
This means:
- No Hidden Fees: When you see a flight listed for €20, that €20 is the total price you pay, and it already includes all the mandatory taxes and fees.
- Transparency: Airlines are no longer allowed to list a “€1 Base Fare” and then surprise the customer with a “€40 Tax” on the final payment page.
The taxes are therefore paid by you as the consumer, but they are collected and remitted by the airline as part of the total ticket price.
