Author: Zach Wichter, USA TODAY

Delta Air Lines announces at CES that free Wi-Fi is rolling out on its planes, in addition to other inflight entertainment improvements.

Winter weather is moving in across the Plains and Midwest, and airlines are already beginning to issue waivers and cancel flights.

Winter weather is moving in across the Plains and Midwest, and airlines are already beginning to issue waivers and cancel flights.

Online booking platform Hopper shows Dec. 22, 23, 26 and Jan. 3 will be the busiest days to fly this holiday season.

Sustainable aviation fuel still releases CO2 in the atmosphere, but it remains better for the environment in many ways than traditional fossil fuel.

Spirit Airlines announced a fare sale ahead of the holidays that will offer tickets for as little as $44 early in the New Year.

Amtrak offered a sneak preview of its new trainsets, which are expected to cover most East Coast and Pacific Northwest routes by 2031.

Amtrak offered a sneak preview of its new trainsets, which are expected to cover most East Coast and Pacific Northwest routes by 2031.

Amtrak offered a sneak preview of its new trainsets, which are expected to cover most East Coast and Pacific Northwest routes by 2031.

American Airlines will update its AAdvantage loyalty program, making it easier to start earning perks but harder to reach the first tier of status.