Promo Code: CMPANAMA715. Passengers traveling to Panama from San Francisco for 3 nights or more. Save on Scheduled Air and Hotel Packages via Copa Airlines! Book: July 17 - August 13, 2015. Travel: September 17, 2015 - January 31, 2016. Savings: $25 per person for 3 - 5 nights. $50 per person for 6 nights or more..