SPS Thailand Co., Ltd.

From the terminal building, take a free shuttle bus to the Airport Bus Terminal. At the Bus Terminal, take 552 (not 552A) bound for On Nut BTS Station (34 Bahts). Get off at the 'Sukhumvit 58/89' bus stop (You better ask a bus conductor. There is no announcement). It takes approximately 30-60 minutes depending on traffic conditions.

✔ If the bus 552 does not come for a long time...

Technically speaking, the bus 552 operates around the clock (24 hours). However, even if the bus 552 does not come for a long time, or the staff of the Airport Bus Terminal says, "You have missed the last 552," or something, please do not use a taxi from the bus terminal. They may be more malicious than drivers waiting at the terminal building.

Instead, you can take 552A and get off at the final bus stop, "Samut Plakan." and then catch a central-bound 2, 25, 38, 46, 48, 116, 507, 508, 511, 513, 544, or 545 bus.

This is definitely a cheaper option than using those dangerous taxis from the Airport Bus Terminal.

✔ After you get off at Sukhumvit 58/89 bus stop...

There is a walking bridge near 'Sukhumvit 58/89' bus stop. Cross the bridge to the other side of Sukhumvit Road. It's the entrance of 'Sukhumvit Soi 89' (this street is well-marked). Go in Soi 89. You will find our guesthouse on the left side (about 200m away from the entrance of Soi 89). We have a black big signboard that says "Sukhumvit On Nut Community Center/Guesthouse" outside.