Air travel

Alaska Airlines planes sit on the tarmac at Sea-Tac International Airport Friday evening, Aug. 10, 2018, in SeaTac, Wash. An airline mechanic stole an Alaska Airlines plane without any passengers and took off from Sea-Tac International Airport in Washington state on Friday night before crashing near Ketron Island, officials said. (AP Photo/Elaine Thompson)

In this July 6, 2018, photo, Chinese security personnel watch as travelers check in for flights at the American Airlines check-in counters at the Beijing Capital International Airport in Beijing. China is applauding U.S. airlines for bending to its demand that they cease referring to Taiwan as its own country on their websites, as American Airlines, Delta and United are among a wave of international carriers to remove references to Taiwan on their websites ahead of a Wednesday, July 25, 2018, deadline set by Chinese authorities. (AP Photo/Mark Schiefelbein)

President Donald Trump salutes as he arrives at Andrews Air Force Base after attending the Veterans of Foreign Wars of the United States National Convention, Tuesday, July 24, 2018, at Andrews Air Force Base, Md. (AP Photo/Evan Vucci)

This undated photo provided by Michael Dellagrazie of Staten Island, N.Y., via his attorney Evan Oshan, shows Dellagrazie's Pomeranian named Alejandro, who was found dead in its carrier Wednesday, May 30, 2018, at a cargo facility at Detroit Metropolitan Airport. The dog was traveling with Delta Air Lines and was making a temporary stop in Michigan on its way to Newark, N.J., from Phoenix. It had been flying alone in the cargo section according to Oshan. (Courtesy of Michael Dellagrazie via AP)

In this Monday, May 7, 2018, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, arrives at an airport in Dalian, China. Unlike his dictator father, who famously shunned air travel, North Korean leader Kim Jong Un jetted off to the northeastern Chinese city of Dalian this week, becoming the first North Korean ruler to travel abroad in that manner in 32 years. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

In this Monday, May 7, 2018, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, arrives at an airport in Dalian, China. Unlike his dictator father, who famously shunned air travel, North Korean leader Kim Jong Un jetted off to the northeastern Chinese city of Dalian this week, becoming the first North Korean ruler to travel abroad in that manner in 32 years. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)