Key Takeaways Like rival Delta Air Lines, United Airlines posted a sizable increase in quarterly premium revenue, notching 10% year-over-year gains.On its earnings call Wednesday morning, United executives made frequent note of their basic economy offerings after the carrier reported 20% revenue improvement for its cheapest tickets.

Shares of United Airlines Holdings Inc. rallied in after-hours trading Tuesday, after the airline reported fourth-quarter results that beat expectations and offered an upbeat first-quarter profit outlook,

JetBlue now operates transatlantic and transcontinental flights with its Mint cabin, a business-class product that goes toe-to-toe with the premium offerings of many US carriers. Alaska Airlines, which has had business class for years now,