Experts say consolidation and market power have left consumers paying more for less

• How do people in the US describe customer service in 2026?

When Delta Airlines charged Marie Duggan, an economic historian visiting Oaxaca, Mexico, $1,200 to change a scheduled flight to the United States, she was so angry she cancelled and booked a cross-border nighttime bus ride instead.

Duggan thought Delta’s price increase to fly to Phoenix instead of San Francisco, at twice the price of a one-way flight to Phoenix, was an insult and a rip-off. So she took a $250 flight on Aeromexico to Hermosillo, in the north-western state of Sonora, and then a $59 bus across the Mexico border.