Airlines

• Iran briefly closes airspace as U.S. tensions rise, flights rerouted across region - Iran temporarily closed most of its airspace late Wednesday, forcing airlines to reroute flights as tensions with the United States escalated.
• Allegiant to buy rival budget airline Sun Country in $1.5 billion cash and stock deal - Budget airlines in the U.S. like Allegiant and Sun Country have faced a surge in costs following the pandemic and the increase in domestic capacity.
• Boeing's airplane deliveries are the highest in 7 years. Now it's about to pick up the pace - Boeing is set to outline its production increase plans later this month after it's expected to post its best year for deliveries since 2018.
• Airlines restore Caribbean flights after U.S. lifts airspace restrictions tied to Venezuela strikes - Airlines including United and Delta began restoring flights to Puerto Rico and other Caribbean destinations early Sunday after aviation authorities lifted temporary airspace restrictions.
• Airlines cancel hundreds of Caribbean flights after U.S. attacks on Venezuela - U.S. airlines cancel hundreds of Caribbean flights after U.S. strikes on Venezuela.
• Winter storm puts airlines to the test. Here's what travelers need to know - Airlines waived change fees ahead of a large winter storm and low temperatures after the busy Christmas holiday.
• U.S. admits liability in Army helicopter collision with American Airlines jet that killed 67 people - The U.S. admitted fault in the deadly Army Black Hawk helicopter collision on Jan. 29 that killed all 67 people on board.
• Frontier Airlines replaces CEO Barry Biffle with carrier's president - Frontier Airlines is replacing its CEO, Barry Biffle, with the carrier's president.
• Southwest CEO says airline 'actively pursuing' network of airport lounges - Southwest's CEO said the carrier is weighing a network of airport lounges
• Trump administration waives $11 million fine for Southwest Airlines' 2022 holiday meltdown - The Trump administration said it will forgive the last $11 million of a fine against Southwest Airlines that stems from the carrier's 2022 holiday meltdown.