PG 3039400 Economy KHR CNX Chiang Mai TH Thailand PNH Phnom Penh KH Cambodia airfare.com 2009-12-11T00:00:00Z TG 4446375 Economy KHR CNX Chiang Mai TH Thailand PNH Phnom Penh KH Cambodia airfare.com 2009-11-22T00:00:00Z CZ 6563100 Economy KHR CNX Chiang Mai TH Thailand PNH Phnom Penh KH Cambodia airfare.com 2009-11-22T00:00:00Z