I booked a flight to Puebla Mexico on Mexicana using Expedia. I had recently been in Mexico and had a rather nightmarish experience getting out of Mexico via Mexico City Airport in the middle of the night. For women traveling alone, Mexico City Airport should only be used in the daytime. So, when I decided to return to Mexico I was very very careful in booking my flight. I booked a red eye going to Mexico because BART offers safe convenient transportation to San Francisco Airport until midnight I would need to leave via North Berkeley Bart... read full review »