Alaska Airlines said on Wednesday it had completed its $1.9 billion acquisition of Hawaiian Airlines after reaching an agreement with the U.S. Department of Transportation.

Key Takeaways Alaska Airlines' acquisition of Hawaiian Airlines received the approval of the Department of Transportation (DOT) Tuesday after the airlines agreed to a number of terms designed to protect travelers.

Climate technology firm AIR COMPANY said it has secured backing from aviation fuel supplier Avfuel in its latest funding round as it looks to convert carbon dioxide into a range of more climate-friendly products.