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Frontier Airlines, an ultra low-cost air carrier have round trip airfares travelling from Atlanta (ATL) to San Jose Costa Rica (SJO) for $ 191, nonstop. On Frontier, your low airfare will take you from point A to point B with the only allowance of a personal item that fits under the seat in front of you. There is no seat selection, no carry-on bag and no change.

Travel Availability:[INDENT]Departs ATL: Aug 19, 26; Sept 2, 9, 16, 23, 30; Oct 14, 28
Returns: Aug 26; Sept 3, 9, 16, 23, 30; Oct 7, 14, 21, 28; Nov 4