Mendiola and his girlfriend left home at about 4 a.m. for Logan Airport, where they took Southwest flight 3219 to Denver, departing at 6:35 a.m.
In Denver, they had a one-hour layover before taking the exact same plane, still flight 3219, to San Antonio.
After a 2 hour and 15 minute layover in San Antonio, they flew to New Orleans on flight 1719.
Thirty minutes later, they took the same plane (still flight 1719) to Phoenix.
Another 40 minutes on the ground, and they took the same plane yet another time (once again, flight 1719) to Las Vegas.
Finally, after another 35 minutes on the ground, they boarded flight 1719 one last time, for San Francisco, arriving at 11:25 p.m. local time, 21 hours after their departure