Question: Which airport mainly serves flights to several airline hubs in the western U.S., Los Angeles International Airport or Fresno Yosemite International Airport?
Context: The Fresno Air Attack Base was established in 1955 By the US Forest Service, Sierra National Forest and is located at the Fresno Yosemite International Airport.  The US Forest Service leases office space to the California Department of Forestry and Fire Protection's (CAL FIRE) Fresno/Kings Unit.  In 1994, it was completely rebuilt to become a model modern AirTanker Base which includes a modern interagency communication/command center. KGPE, virtual channel 47 (UHF digital channel 34), is a CBS-affiliated television station located in Fresno, California, United States.  The station is owned by Nexstar Media Group, as part of a duopoly with NBC affiliate KSEE-TV (channel 24).  The two stations share studio facilities located on McKinley Avenue in East Fresno (several blocks from Fresno Yosemite International Airport); KSEE maintains transmitter facilities located on Bear Mountain (near Meadow Lakes). The Yosemite Area Regional Transportation System, also known as YARTS, is a public transit bus line based in Merced, California.  YARTS provides scheduled service into popular locations within Merced, Mariposa, Mono, Madera, and Fresno counties, including Yosemite National Park and Fresno Yosemite International Airport. KSEE, virtual channel 24 (UHF digital channel 38), is an NBC-affiliated television station located in Fresno, California, United States.  The station is owned by the Nexstar Media Group, as part of a duopoly with CBS affiliate KGPE (channel 47).  The two stations share studio facilities located on East McKinley Avenue in East Fresno (several blocks from Fresno Yosemite International Airport); KSEE maintains transmitter facilities located on Bear Mountain (near Meadow Lakes). KMPH-TV, virtual channel 26 (UHF digital channel 28), is a Fox-affiliated television station serving Fresno, California, United States that is licensed to Visalia.  The station is owned by the Sinclair Broadcast Group as part of a duopoly with CW affiliate KFRE-TV (channel 59).  The two stations share studio facilities located on East McKinley Avenue in eastern Fresno (one mile southwest of Fresno Yosemite International Airport); KMPH maintains transmitter facilities located on Big Baldy Mountain in northwestern Tulare County. Fresno Yosemite International Airport (IATA: FAT, ICAO: KFAT, FAA LID: FAT) , formerly Fresno Air Terminal, is a joint civil-military public airport in eastern Fresno, in Fresno County, California.  Located approximately 64 miles south of Yosemite National Park on California State Route 41, it is the closest airfield to the Park with scheduled passenger airline jet service.  Situated near California State Route 168 and California State Route 180, the airport covers 1728 acres .  It maintains two runways and one helipad.  Fresno Yosemite International is the air transport center for the San Joaquin Valley, with flights to several airline hubs in the western United States.  International flights to Mexico are available through Aeroméxico and Volaris.  The airport is also home to the Fresno Air National Guard Base and the 144th Fighter Wing (144 FW) of the California Air National Guard. Shanghai Pudong International Airport (IATA: PVG, ICAO: ZSPD) is one of two international airports of Shanghai and a major aviation hub of China.  Pudong Airport mainly serves international flights, while the city's other major airport Shanghai Hongqiao International Airport mainly serves domestic and regional flights.  Located about 30 km east of the city center, Pudong Airport occupies a 10000 acre site adjacent to the coastline in eastern Pudong.  The airport is operated by Shanghai Airport Authority (, ). KFRE-TV, virtual channel 59 (UHF digital channel 36), is a CW-affiliated television station serving Fresno, California, United States that is licensed to Sanger.  The station is owned by the Sinclair Broadcast Group as part of a duopoly with Fox affiliate KMPH-TV (channel 26).  The two stations share studio facilities located on McKinley Avenue in eastern Fresno (one mile southwest of Fresno Yosemite International Airport); KFRE maintains transmitter facilities located on Bear Mountain (near Meadow Lakes). Los Angeles International Airport (IATA: LAX, ICAO: KLAX, FAA LID: LAX) is the largest and busiest airport in the Greater Los Angeles Area and the state of California, the second busiest airport in the United States, as well as one of the largest international airports in the world.  It is the only airport in the world to serve as a hub for five major airlines. Western Airlines (IATA: WA, ICAO: WAL, Call sign: Western) was a large airline based in California, with operations throughout the western United States including Alaska and Hawaii, and western Canada, as well as to New York City, Boston, Washington D.C. and Miami on the U.S. east coast and also into Mexico.  The airline also served other international destinations such as London, England and Nassau, Bahamas during its existence.  Western had hubs at Los Angeles International Airport, Salt Lake City International Airport, and the former Stapleton International Airport in Denver.  Before it merged with Delta Air Lines in 1987 it was headquartered at Los Angeles International Airport (LAX).  The company's slogan for many years was ""Western Airlines...The Only Way To Fly!""
Answer: Fresno Yosemite International Airport