Written September 2026
For one person on a long trip in the UK, driving usually wins on pounds and the train wins on hours. Petrol for a 200-mile run costs less than most walk-up rail fares, then city parking and the motorway crawl claw a chunk of that back. So the honest answer is: it depends, and the margin is thinner than either side admits.
But if anyone you know is driving even part of that way, the question changes completely, and it gets a better answer.
Fares are set route by route, not by the mile, so where you board changes the price more than almost anything else. A lift along someone's existing drive can put you on a platform where the same journey costs a fraction of the full fare, and you skip the parking question entirely. Partway, our free iPhone app, checks every station along the driver's route and prices the train from each, so you swap at the one that actually wins.
On one search we ran on 1 September 2026: heading from Bath to Manchester while a friend drove home to Birmingham, the through fare from Bath came back at £116.80. Riding along and hopping out at Sandwell and Dudley, a seven minute detour for the driver, the fare to Manchester was £49.00. Same afternoon, same destination, and the app showed both numbers before anyone left the house.
A full car changes the maths: four people splitting petrol beats four tickets almost every time. And sometimes your destination sits so close to the driver's route that being taken all the way is simply the right answer. Partway checks that too, and says so when doing nothing beats every station. Here is how the partway swap works in practice.
Next time the drive-or-train debate starts, see if a lift covers part of it, then let Partway price the swap with real trains and real fares. Free, no sign-up.