Common questions
How early should I arrive at Chicago Union Station?
Amtrak asks for 30 minutes, and this example lands close to it. Regular riders often cut it finer (ten to twenty minutes) when they already know the door, board, and stairs. Every row is editable. More if you are checking a bag: Amtrak publishes no single cutoff; budget 45 minutes as a conservative default. Union Station is two rooms people mix up: the Great Hall with the skylight, and the boarding concourse the trains leave from. Wait in the Great Hall; Amtrak calls trains there about 45 minutes out, and you walk through to the gate when yours is called. The two connect underground, so the walk is indoors and a few minutes long.
When should I leave for Chicago Union Station?
Work backward from departure: gate closes 5 minutes before departure, the 12 minutes you should already be at the gate, the walk out, the wait for it to be posted, parking, then the drive (25 minutes in the default plan). Replace that with your own route. The leave-by moment is the first travel row, "Drive to CHI" by default.
Should I arrive earlier than that to get a seat?
If seating matters, yes. Northeast Regional coach has no seat assignments, so the queue decides who sits where. People who care get in line well before the thirty-minute mark. Acela and Business Class are assigned, so none of this applies there.
How late is too late at Chicago Union Station?
Amtrak's gates may close three to ten minutes before departure, so the gate closing is the real deadline. This plan assumes five minutes. At the busiest stations, riders report closer to two. That last step is the one that decides it.
Is a train really different from a flight?
On timing, yes. No routine screening and no counter an hour out, so the two-hour flying habit usually leaves you waiting. Bigger stations have reintroduced gated boarding and a concourse queue, which is why the plan budgets standing time. The building still matters: several rooms, one board, and a platform that can be minutes from where you are when the track goes up.
What happens if I miss the train?
Assume you lose the fare. Amtrak's policy: tickets are non-refundable and non-changeable once the train has departed; a no-show forfeits that segment. Being put on the next train is a courtesy, not something to plan around. The row that matters is "Gate closes", not the departure time above it.
Flying instead? The airport pages use the same kind of plan with security. The leave time calculator works for any appointment, and the wake-up time calculator runs it back to the alarm.
