VivaColombia is the latest airline to explore the possibility of standing seats on planes.
The airline’s founder and CEO William Shaw said: “There are people out there right now researching whether you can fly standing up.
“We’re very interested in anything that makes travel less expensive.”
The Colombian airline, which currently flies daily from Medellin to Miami, is expanding its aircraft fleet.
The first of 50 new Airbus 320s will start service in May 2018, with more seats and lower maintenance costs.
It will also be more fuel efficient; savings which are expected to be passed onto customers.
But the concept of standing seating has been repeatedly blocked by civil aviation authorities.
Civil Aviation Director Alfredo Bocanegra told RCN radio in Colombia: “People have to travel like human beings.
“Anyone who has ridden on public mass transit knows that it’s not the best when you’re standing.”
Airbus first put forward the idea of standing seats in 2003.
Since then many airlines have proposed the new model, including Ryanair in 2010.
Under the proposals, passengers would still have to wear seatbelts around the waist.
The seats would be comparable to “bar stools” and would allow airlines to increase capacity by about 40 per cent.