 | Sivatel Bangkok Hotel | 5.0 star rating | 75 | Langsuan-Wireless Road |
 | SK Mahanakhon Hotel Bangkok | 3.0 star rating | 18 | Chinatown-Old City |
 | Sky Dome Resotel Bangkok Hotel | 4.0 star rating | 95 | Ladprao- Chatuchak |
 | Sky Inn 1 Hotel Bangkok | 2.0 star rating | 15 | Sukhumvit |
 | Sky Inn 2 Hotel Bangkok | 2.0 star rating | 15 | Sukhumvit |
 | Sky Suites Hotel Bangkok | 2.0 star rating | 15 | Sukhumvit |
 | Skyy Hotel Bangkok | 4.0 star rating | 70 | Sukhumvit |
| Skyy Residence Hotel Bangkok | 3.0 star rating | 29 | Sukhumvit |
| Sleep Withinn Hotel Bangkok | 3.0 star rating | 60 | Khao San |
 | Smart Suites Bangkok Hotel | 2.0 star rating | 26 | Sukhumvit |
 | S.M. Grande Residence Hotel Bangkok | 3.0 star rating | 103 | Sukhumvit |
 | Smile Buri House Hotel Bangkok | 2.0 star rating | 21 | Khao San |
 | Sofitel Bangkok Sukhumvit Hotel | 5.0 star rating | 345 | Sukhumvit |
 | So Good Hostel Hotel Bangkok | 2.0 star rating | 6 | Sukhumvit |
 | Solo Express Bangkok Hotel | 3.0 star rating | 28 | Sukhumvit |
 | Solo Sukhumvit 2 Hotel Bangkok | 4.0 star rating | 42 | Sukhumvit |
 | Somerset Amar Garden Hotel Bangkok | 4.0 star rating | 5 | Sukhumvit |
 | Somerset Ekamai Bangkok Hotel | 4.0 star rating | 211 | Sukhumvit |
 | Somerset Lake Point Hotel Bangkok | 4.0 star rating | 432 | Sukhumvit |
 | Somerset Park Suanplu Hotel Bangkok | 4.0 star rating | 235 | Sathorn |
 | Somerset Sukhumvit Thonglor Hotel Bangkok | 4.0 star rating | 262 | Sukhumvit |
 | Somewhere Koh Sichang Hotel Bangkok | 4.0 star rating | 20 | Khao San |
 | So Sofitel Bangkok Hotel | 5.0 star rating | 238 | Sathorn |
 | Sourire @ Rattanakosin Hotel Bangkok | 3.0 star rating | 38 | Chinatown-Old City |
 | Spenza Hotel Pratunam Bangkok | 3.0 star rating | 94 | Pratunam-Petchburi |
| Ssip Boutique Dhevej Bangkok Hotel | 4.0 star rating | 12 | Khao San |
 | S Sukhumvit Suites Hotel Bangkok | 3.0 star rating | 73 | Sukhumvit |
 | STABLE LODGE BY ASPIRA Hotel Bangkok | 3.0 star rating | 41 | Sukhumvit |
| Star Inn Hotel Bangkok | 2.0 star rating | 29 | Sukhumvit |
| Star Suite Service Aparment Hotel Bangkok | 2.0 star rating | | Sukhumvit |
 | Steve Boutique Hostel Hotel Bangkok | 2.0 star rating | 10 | Khao San |
 | St. James Hotel Bangkok | 3.0 star rating | 78 | Sukhumvit |
 | St. Regis Bangkok Hotel | 5.0 star rating | 227 | Siam-Ratchadamri |
 | Studio Nana Hotel Bangkok | 2.0 star rating | 37 | Sukhumvit |
 | STUDIO SUKHUMVIT 11 BY ICHECK INN Hotel Bangkok | 3.0 star rating | 23 | Sukhumvit |
 | Studio Sukhumvit 18 by iCheck inn Hotel Bangkok | 2.0 star rating | 24 | Sukhumvit |
 | Suk11 Hostel Hotel Bangkok | 2.0 star rating | 70 | Sukhumvit |
 | Sukhumvit 12 Bangkok Hotel & Suites | 4.0 star rating | 97 | Sukhumvit |
| Sukhumvit Crown Hotel Bangkok | 2.0 star rating | | Sukhumvit |
 | Suklutai Apartment Hotel Bangkok | 2.0 star rating | | Chinatown-Old City |
 | Summit Pavilion Bangkok Hotel | 3.0 star rating | 229 | Suvarnabhumi Airport |
 | Summit Windmill Golf Residence Hotel Bangkok | 5.0 star rating | 70 | Suvarnabhumi Airport |
 | Sun City Hotel Bangkok | 3.0 star rating | 15 | Sukhumvit |
 | Suneta Hostel Khaosan Hotel Bangkok | 2.0 star rating | 3 | Khao San |
| Sunny Residence Hotel Bangkok | 3.0 star rating | | Suvarnabhumi Airport |
 | Sunny Residence Hotel Bangkok | 3.0 star rating | 64 | Suvarnabhumi Airport |
 | Suphan Lake Hometel Hotel Bangkok | 3.0 star rating | 36 | Suvarnabhumi Airport |
 | Suriwongse Hotel Bangkok | 3.0 star rating | | Silom |
 | Suriwongse Tower Inn Hotel Bangkok | 2.0 star rating | 57 | Silom |
 | Suvarnabhumi Mansion Hotel Bangkok | 2.0 star rating | 20 | Suvarnabhumi Airport |