<Tr> <Th> Based aircraft </Th> <Td> 305 </Td> </Tr> <Tr> <Td_colspan="2"> Source: San Luis Obispo County Regional Airport Statistics Reports </Td> </Tr> <P> San Luis Obispo County Regional Airport (IATA: SBP, ICAO: KSBP, FAA LID: SBP), McChesney Field is a civil airport near San Luis Obispo, California . Three passenger airlines currently serve the airport operating flights to five airline hubs in the western United States: Denver (DEN), Los Angeles (LAX), Phoenix (PHX), San Francisco (SFO) and Seattle (SEA). The airport was established in 1939 and used by the U.S. military between 1939 and 1945 . </P> <P> In 1933 Pacific Seaboard Air Lines single engine Bellanca CH - 300s flew twice daily each way Los Angeles - Santa Barbara - Santa Maria - San Luis Obispo - Paso Robles - Monterey - Salinas - San Jose - San Francisco . Pacific Seaboard later moved its operation to the eastern U.S., was renamed Chicago and Southern Air Lines, and became a large domestic and international airline that in 1953 was acquired by and merged into Delta Air Lines . </P>

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