The busiest time of the week for travel from St Louis to El Portal by train is at 4:00 p.m. on Wednesday. When planning to travel around this time, tickets should be booked well in advance as they may sell out. Around 4:00 p.m. on Wednesday is when the fewest number of train tickets are sold. If you’re looking for a little extra space, the train departing at this time is the least likely to be crowded.