A short change between two trains works when you count every step and keep room for a late arrival. When the sum looks thin, the safer choice is a later second train.
It is easy to look at two timings on a screen and think a short gap is fine. The gap on the screen does not include the walk, the security check or the stairs with a suitcase.
What happens between the two trains?
Count the real steps, in order:
- The first train arrives, and doors open.
- You collect your bags and walk off the platform.
- You may have to leave the station, then pass a new bag check to re-enter.
- You find the new hall or gate, then the platform.
- You board and put the bags away.
Expect X-ray bag checks at station entrances, and arrive 30 to 40 minutes before departure at major stations[1]. If your plan means passing a new entrance, treat that as part of the gap. You also need your passport for the platform gates[2].
Is it the same station?
Check this before anything else. A change that stays in one station is easier than one between two stations, which can be far apart. Our station location guide explains how the choice of station changes your travel day.
If the station is the same but the halls are different, ask on the day, and give yourself more time than the screen suggests.
What about the tickets?
Two separate tickets mean two separate promises. If the first train is late, the second does not wait for you.
Read the changing and refunding guide before you buy. A later second train, or a ticket you can change, protects you.
Also keep the sale window in mind. Tickets usually go on sale 15 days before departure and cannot be bought earlier[3]. Your second leg may not be open when you book the first, so put the booking day in your calendar and check the date again nearer the time.
How do you build a safer plan?
Choose the later second train when you travel with luggage, parents or small children. A calm hour in the station café is better than a run through a crowded hall.
Keep the night in mind too. If the connection is the last of the day, the next night’s hotel near the station removes the risk altogether. The arrival time guide shows how early to be at the second station.
What about a flight and a train?
A flight into a train is a different problem, because bags, immigration and distance come into it. Read our flight to train connection guide for that.
What should you do next?
Write the gap, then count the steps. If you cannot make the sum comfortable, move one train later. For the common mistakes, see the first-time train mistakes guide, or browse the getting around topic page.