1) How to go from Suvarnabhumi Airport(aka BKK Airport) to DMK Airport?
I followed the instructions in this blog http://www.pausethemoment.com/bkk-to-dmk-for-free/ for going to DMK airport from Suvarnabhumi Airport(BKK). I had about 7 hours to catch the next flight at DMK to go to Surat Thani which was more than sufficient time. The free shuttle from BKK airport took about 50 minutes to reach DMK airport.
2) How to reach Hug hostel Rooftop in Chiang Mai (CNX) Airport?
Hug hostel Rooftop is located in Old city Chiang Mai, near the Old city North Gate stop. Getting to old city from Airport takes about 15 minutes by taxi. The Chiang Mai airport has taxi that charges 125 THB to take to old city. Hug hostel Rooftop is an average hostel, the bathrooms were spacious but the sharing rooms were dorm type beds with little privacy. Since it had one single door for all the dorm members, there is a chance that you might be disturbed a lot during night or the time when you need a little relaxing. Grab taxi works in Chiang Mai but the price can vary depending the time of travel so early or late night taxi might be expensive. for eg: My early morning taxi to Airport from the hostel cost me 190 THB.
Old city North Gate stop is the place to get Songthaew (Red taxi) that takes to popular places like Doi Suthep temple located on top of mountain charging 60 THB one way.
3) How to reach Nonze hostel, Pattaya from Suvarnabhumi Airport?
4) How to reach Bangkok from Nonze hostel, Pattaya?
If you want to reach BKK airport, you may need to catch the bus terminal located at Near Food Mart Supermarket, Thappraya Road, South Pattaya.
5) How to reach BKK airport from Nana BTS station?
There are 3 days BTS metro passes available if you plan to roam around Bangkok. Since I was not staying for 3 full days I opted for a regular metro card that cost me 200 THB out of which 100 THB is not refundable and 100 THB is a usable amount for metro travel. I took a metro from Nana BTS station and took a train towards Mo Chit BTS station, alighted at Phaya Thai BTS station. Then I followed the directions by walk to go to Airport Rail Link(SRTET City Line) which required a token of 45 THB to take to Suvarnabhumi Airport(BKK). This total journey takes about 40 minutes.

