Gomes, 32, pleaded guilty earlier this year to taking the money from the backpack of a visitor on Feb. 6.
"I hope this sends a message to the public that they can trust the government will pursue these cases and when they travel, they can be assured that their luggage won't be rifled through and items stolen," said Assistant U.S. Attorney Darren Ching, who handled the case.
Two other former TSA employees have also been prosecuted for taking items from luggage. Benny Arcano and Christopher Cardona admitted stealing yen worth thousands of dollars from Japanese tourists in 2004 and 2005.
The two pleaded guilty and are awaiting sentencing.