Passengers check in at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
Passengers check in at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
A flight takes off at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
A flight takes off at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
People walk to San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
People walk to San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
A passenger walks at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
Passengers wait in line to check in at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
People bid farewell before walking to San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)
A flight takes off at San Francisco International Airport in San Francisco, California, the United States on Dec. 20, 2025. An estimated of 122.4 million people are expected to travel between Dec. 20 and Jan. 1, according to American Automobile Association. (Photo by Ziyu Julian Zhu/Xinhua)