I am planning to hike a portion of the Kungsleden in August 2025. I plan to take the night train from Stockholm to Abisko and I realize the soonest I can book is 90 days in advance. For my return, I want to take the train from Gallivare to Stockholm. Any special advice?
No, SJ does not release their tickets 90 days in advance, but in batches. Usually four times per year. The tickets for August should be available in the spring or early summer. Do you have anything else planned since you're returning from Gällivare?
https://www.thelocal.se/20240425/swedens-railway-company-sj-opens-ticket-bookings-for-summer-season
Might be helpful. From last year but shows the timing last year.