There are 2 left luggage counters at the Suvarnabhumi Airport:
Each item deposited will be charged at the rate of THB 100 per 24-hour period.
Items stored for over 24 hours will be charged at a rate of THB 50 per 12-hour period (any part of the 12 hour will be charged at THB 50).
If the items are deposited for more than 3 months (92 days), the charge per 24-hour period will be THB 200.00 per item. Any deposits not collected within 6 months (180 days) will - become the property of the depository.
NO jewelry, watches, antiques, gold, cash, credit cards, perishable goods, fragile articles, electric appliances, mobile phone, shaver, CD player, MP3 player, portable computer, camera (film or digital) or VDO camera accepted.
They will issue a slip to you, be aware, without that piece of paper you will not be able to reclaim your bags without an incredible amount of hassle, so do not lose it.
PS. It is very useful if you are having a layover in Bangkok.
Enjoy the unique experience to reach Maeklong Railway Market (umbrella pulldown market) by taking a local train. Then, visit Damnoen Saduak, the most famous floating market in Thailand filled with colorful boat vendors to explore. Private tour.
Enjoy a relaxed and romantic evening on board a scenic cruise along Bangkok’s Chao Phraya River. as you admire Bangkok's evening skyline, including traditional temples and modern skyscrapers. You’ll also be entertained by an Indian dancer, for an unforgettable evening. This cruise is a fun way to finish off a day of sightseeing in Bangkok.