Copa Airlines has a great $270 round trip economy fare for San Francisco to Guatemala GUA for travel departures from mid-January to April. These months coincide with the dry season in Guatemala and are considered to be the best time of year for travel to this region.
Copa Airlines San Francisco SFO – Panama City PTY – Guatemala GUA – PTY – SFO
Copa economy booking code A earns 100% miles with Air Canada Aeroplan and SAS Eurobonus. Most other Star Alliance programs earn 50% flight miles.