I'm arriving into Union station early in the morning, departing at 10pm
I know I can check my luggage for the journey, but can't find an earliest time, the latest is 45 mins.
This was the page that I found that information on
Amtrak.com Washington, DC (WAS) Union Station
I'm also aware that there is a luggage locker service, located in the station complex but the price per item per hour seemed steep.
Hoping this is an easy answer