When flying from Nebraska to Ghana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Great question - OMA to ACC just means Omaha Eppley Airfield Airport to Accra Kotoka Airport. Now you’ll know what these unique codes when you look for flights! Kumasi Airport (KMS), Tamale Airport (TML), Takoradi Airport (TKD), Sunyani Airport (NYI), Wa Airport (WZA) are other airports near this flight route and their unique identifiers/IATA codes.