Photo Gallery: Southwest Airlines first flight out of Burbank Bob Hope Airport to San Francisco

Flight attendants like Amy Schulte, right, wait to board the first Southwest Airlines Burbank-to-San Francisco flight out of the Bob Hope Airport, in Burbank on Wednesday, January 6, 2016. The airport already served SFO but with a different airline.

Passengers Tracy Martinez, left, Judy Rossi, center, and Linda Bakker, right, enjoy celebratory cake for the first Southwest Airlines Burbank-to-San Francisco flight out of the Bob Hope Airport, in Burbank on Wednesday, January 6, 2016. The airport already served SFO but with a different airline.

A passenger heads out to the board the first Southwest Airlines Burbank-to-San Francisco flight out of the Bob Hope Airport, in Burbank on Wednesday, January 6, 2016. The airport already served SFO but with a different airline.

Passengers board the first Southwest Airlines Burbank-to-San Francisco flight out of the Bob Hope Airport, in Burbank on Wednesday, January 6, 2016. The airport already served SFO but with a different airline.

A cake was served to passengers to celebrate the first Southwest Airlines Burbank-to-San Francisco flight out of the Bob Hope Airport, in Burbank on Wednesday, January 6, 2016. The airport already served SFO but with a different airline.