Sukhothai 4N
Like Jojoone, I think that’s a bit too long. Three nights would give you plenty of time to visit Old Sukhothai and Old Si Satchanalai without rushing.
Lampang 3N
I found this town pretty ugly, and it’s where all the package tours stop for one night just to take a horse-drawn carriage ride in a long line to the famous temple on the outskirts before continuing their crazy day 🤪 to Sop Ruak and then Chiang Rai. Thankfully, there are beautiful temples in plenty of other towns. I never felt like going back to Lampang—you seem keen on it, maybe as a way to break up the trip, so okay, but more than two nights? Good grief!
Doi Inthanon 2N (could be swapped with Chiang Mai—see "Luggage" note below)
Chiang Mai 4N
So you’d go straight from Lampang to Doi Inthanon without stopping in Chiang Mai? That means heading northwest to Lamphun, then southwest to Ban Hong, then northwest again to Chom Thong before turning southwest toward Mae Sariang and the park entrance… Hmm. If I were you, I’d skip that kind of zigzagging—it barely shortens the trip, and I’d do what everyone else does: go via Chiang Mai.
This is the first time I’ve heard someone say they want to stay two nights "up there." Usually, people do a day trip from Chiang Mai, often arranged through their accommodation or a local agency. Since I’ve never been to Doi Inthanon, I can’t say whether two nights is worth it, but if it’s possible, why not?
Chiang Mai 4N
(...)
Are there luggage storage options in Chiang Mai?
Arriving in Chiang Mai *after* Doi Inthanon? No, I definitely wouldn’t do it that way.
After Lampang (if you can’t bring yourself to skip it), I’d spend my 4 nights in Chiang Mai first, then head to Doi Inthanon and return to Chiang Mai for one more night. (Three full days in Chiang Mai the first time seems like a reasonable minimum.) Even if you cut Doi Inthanon down to a day trip, keeping 5 nights in Chiang Mai would still make sense.
I don’t know if there are luggage lockers in Chiang Mai, but any of the many accommodations there will happily (and usually for free) store your bags during an excursion—even for several days—if you’ve stayed with them before. They’ll be even happier if you booked the excursion or car rental through them.
dragging around 3 suitcases at 23kg each
You’re traveling with 8 people?
I have 3 nights to fill between Sukhothai and Chiang Mai (or further north). Any ideas?
Phayao:
A quiet town with a nice lake—great for a 2-kilometer stroll along the promenade starting around 4–5 PM, when locals gather to walk, relax, or join in activities you might get invited to. Most accommodations are busy on weekends* with Thai tourists, but there’s very little foreign tourism. There’s a walking street on Fridays and Saturdays starting at 4 PM, an evening food market where you can sit and eat all week, plus other restaurants and street food spots. It’s easy to reach by bus from Chiang Mai in about 2.5 hours, with plenty of departures to Bangkok and Chiang Rai.
2–3 nights would be ideal.
Nan:
A small, peaceful provincial capital with several uniquely styled temples (different from other provinces) that are rightly famous. There are bike lanes that cars actually respect, little traffic, and lots of accommodations—mostly busy on weekends* with Thai tourists, but very few foreign visitors. Plenty of restaurants, too. You can get there by bus from Phayao (1 daily, 4 hours), with multiple buses from Chiang Mai (6–7 hours), 1 daily from Chiang Rai (5 hours), and several buses and low-cost flights to Bangkok.
3–4 nights would be great, or more if you explore the surrounding province.
*For weekends, book your accommodation in advance.
Buses from Nan (note: the Nan-Phayao-Chiang Mai route on Greenbus no longer exists):



