How long is a flight from richmond to omaha?

Assuming you meant

• the US city of Richmond, Virginia and Omaha, the place in Douglas County, Nebraska, USA

Did you mean?

• Richmond, the town in London, England and Omaha, the largest city in the state of Nebraska, United States, and is the county seat of Douglas County, Richmond, the affluent town in southwest London, England and is part of the London Borough of Richmond upon Thames and The Omaha Amtrak station, the train station in Omaha, Nebraska, United States served by Amtrak, the national railroad passenger system
• the US city of Richmond, Virginia and The Omaha Amtrak station, the train station in Omaha, Nebraska, United States served by Amtrak, the national railroad passenger system