Flight attendant unions at the two carriers are pushing in opposite directions as federal officials decide whether and on what terms to allow the deal.

The loan will help accelerate Redwood Materials’ plans to produce components for electric car batteries from new and recycled sources.

The company canceled thousands of flights around Christmas, disrupting travel for about two million people.

The airline canceled 16,700 flights before and after Christmas as it struggled to recover from bad weather.

The breach exposed information like names, addresses and phone numbers and lasted more than a month, the company reported in a securities filing.

Southwest Airlines’ chief executive, Bob Jordan, said frigid temperatures and mistakes by the company caused its meltdown around Christmas.

Southwest Airlines’ chief executive, Bob Jordan, said frigid temperatures and mistakes by the company caused its meltdown around Christmas.

NOTAM alerts — short for Notice to Air Mission — are crucial to planning flights.

The move will allow two new versions of the jet to be certified without major modifications, but it requires safety changes on all Max models.

United plans to take delivery of the planes over an eight-year span to refresh its fleet and increase fuel efficiency, with an option to buy...