Allegiant Air is known for charging extra for everything from selecting your seat to booking flights online.
But it doesn’t end there, as the airline has now begun charging passengers for carry-on bags.
Customers booking tickets with Allegiant from Wednesday (April 4) will be allowed one personal item such as a briefcase, purse or laptop free of charge in the cabin, as long as it can fit under the seat.
But those with a larger carry-on bag will have to pay between $10 (£6) and $30 (£19) one-way, if booked online and in advance.
According to Allegiant’s list of baggage charges, the carry-on bag fee varies based on factors including the flight’s origin, length and destination.
Customers who don’t pay in advance for their carry-on bag will be charged a flat $35 (£22) fee at the airport.
The new charges will not affect travellers who have already booked flights with Allegiant – only those making reservations with the carrier from April 4.
A sign of things to come?
The Las Vegas based airline has taken a leaf out of Spirit Airlines’ book and become the second major US carrier to charge passengers to bring bags into the plane cabin.
Spirit Airlines began charging up to $45 (£28) for carry-on bags in 2010 – a fee that has helped to boost the airline’s bottom line.
Carry-on bag fees generate an estimated $50 million (£31m) in revenue for the airline annually, according to a report by consultancy IdeaWorks.
Both Allegiant and Spirit Airlines operate an ‘ultra-low-fare’ model and therefore at a much lower cost base to network airlines like Delta or American Airlines.
This allows them to undercut rival airlines with lower fares, while charging passengers for everything else.