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Winter weather is causing flight delays and cancellations. Experts have tips on what to do when your itinerary gets scrambled by a storm. Airlines are required to provide refunds for customers whose flights are canceled for any reason. Airlines will try to put you on a later flight, but that depends on there being open seats.

Southwest Airlines canceled over 300 flights Tuesday at Denver International Airport. This is just one of the thousands of cancellations nationwide over the past few days.

The American Automobile Association predicts national travel will be back up to pre-pandemic levels, with 54.6 million people traveling more than 50 miles for the holiday.

As the airline industry works to cut its carbon dioxide emissions, a team of researchers believe they've found a "runway" to 100% sustainable aviation fuel.

JetBlue has agreed to buy Spirit Airlines in a $3.8 billion deal, a day after Spirit and Frontier Airlines dropped their merger proposal.

Spirit Airlines said Thursday it was again postponing a shareholder vote on a proposed merger with Frontier Airlines to continue talks with Frontier and rival bidder JetBlue Airways. The vote was delayed from Friday until at least July 15.

Shares of Spirit Airlines rose Thursday after it postponed a vote for the second time on a proposed merger with Frontier Airlines, allowing for a bidding war over the budget airline between Frontier and JetBlue Airways to play out.

One of the biggest changes is that the Department of Transportation would no longer require airlines to consider emotional support animals as service animals, as they have in the past.

U.S. airlines are increasing their emissions of climate-changing gases much faster than they are boosting fuel efficiency, according to an environmental…

The FAA says the issue that affected Southwest, Delta and other carriers has been resolved. But with hundreds of flights affected, the delays could linger.