United Airlines announced Friday that it is increasing its baggage check-in fees after American Airlines made a similar move earlier this week.
Starting with tickets booked on Saturday, economy class passengers on domestic flights will be charged $5 more.
That increases the price to $35 if they pay online at least 24 hours before the flight and $40 afterward.
The fee for a second checked bag also increases by $5, rising to $45 in advance online and $50 at the airport.
Passengers in premium cabins, holders of United-branded credit cards and customers with elite status in the airline's frequent flyer program will still be able to check their bags for free, United said.
United's economy class passengers on domestic flights will be charged $5 more for a checked bag. AP
United follows American Airlines and JetBlue's move to increase baggage fees. AP
Earlier this week, American Airlines increased its first checked bag fee on domestic flights from $30 to $35 if paid in advance and to $40 at the airport.
Additionally, the fee for a second bag has increased from $40 to $45.
American also increased baggage fees for short international flights.
Alaska Airlines increased baggage fees for most economy passengers in January, and JetBlue followed suit earlier this month.
Baggage fees have become a reliable source of revenue for airlines since American introduced them in 2008 when jet fuel prices soared.
In 2022, the most recent full year for which statistics are available, U.S. airlines collected $6.8 billion in checked baggage fees, led by American at $1.4 billion and United at $1.1 billion U.S. dollar.