Thailand forum

My partner and I are thinking about a trip to Thailand this year. It will be the first trip for both of us, and we'd be keen to see a few different sides to Thailand. At the moment, I have a vague idea of the itinerary in my head, which I think gives a nice balance of relaxation and time in each place versus seeing a couple different places. I'd love to get the opinions of people more experienced than us in travelling to this part of the world though!


At the minute, my very vague itinerary is as follows:
* Fly into Bangkok from London, and spend approx 3-4 days in Bangkok. Potentially do a day trip to Ayutthaya or Kanchanaburi .
* Fly from Bangkok to Chiang Mai and spend approx 2 days there.
* Fly from Chiang Mia to Phuket and spend approx 3 days there.
* Fly from Phuket to Bangkok and spend another 2-3 days there, doing another day trip to Ayutthaya or Kanchanaburi (potentially staying for a night in the latter).
* Fly from Bangkok to London.


Is the above achievable or is it over-stretching our time (approx 2 weeks) there? If so, I think Chiang Mai would be the best place to cut out (?). We have two seasons in which we can visit, dictated by my partner's work - either sometime from April to October, or October to March. I gather than visiting from April to October would be much preferable to visiting from October to March; is that correct?

Any advice, recommendations, etc. which you could offer to help us firm up our plans would be much appreciated!