If you are flexible with your travel dates, always consider that you can buy extremely cheap train tickets if you avoid travelling in the weekends and if you choose to travel during the low season.
For short distances like between Lamphun and Chiang Mai, busses and carpooling are good alternatives to the train, thanks to their low costs. Also, busses have the advantage of getting to the smallest towns where the is no train station.
Which stations serve the rail line Lamphun - Chiang Mai?
The trains to Chiang Mai will leave from Lamphun and will arrive at Chiang Mai.
When are the first and last trains from Lamphun to Chiang Mai scheduled?
With the fastest connections you will be in Chiang Mai in 15 minutes, but on average it takes 19 minutes. The first train headed to Chiang Mai is at 03:01, while the last one leaves Lamphun at 19:02.