American Airlines is ditching the ability to pay with cash at its Miami hub.
The cashless move means payments for any additional fees, like checked and excess baggage charges, and upgrades, are only accepted with debit or credit cards.
The new measures take effect from today, January 18.
It will ultimately lead to faster service for all, American says.
"Moving away from cash allows American to assist customers more efficiently. It also reduces the complexity of work for our agents who will no longer have to worry about handling cash, find exact change or close out a cash drawer at the end of the day," spokeswoman Alexis Aran Coello said.
"In general, our ticket counter agents support the transition to a cashless environment."
There is still an option for customers who do not possess plastic.
American has teamed up with Ready Credit to let travelers convert cash into a prepaid Visa debit card with a value of up to $1,000.
It has 11 ReadyStation kiosks in the terminal.
Ready Credit charges a $5 fee for each card transaction.
"We are mindful of the impact this may have on travelers from international destinations. However, we have noticed that many travelers who are returning to a country where (U.S. dollars) is not the accepted currency will often add more funds to their cards as it is a cost effective method of converting," Aran Coello said.
She says American has now moved to cashless transactions only at more than 50 locations.