Your Guide to Bangkok's BTS Skytrain: Sukhumvit and Silom Lines

The BTS Skytrain is the fastest way to cross Bangkok without touching the city's notorious traffic. Riding above the streets on elevated tracks, this BTS Skytrain Bangkok network covers two color-coded routes, the Sukhumvit Line and the Silom Line, plus a short connector called the Gold Line.

This guide covers every station on both lines, current 2026 fares, operating hours, how the system connects to the rest of Bangkok's transit network, and which BTS stations foreign buyers and expats tend to prefer for renting or buying property.

What Is the BTS Skytrain?

Officially the Bangkok Mass Transit System, the BTS Skytrain first opened on December 5, 1999, and has expanded steadily ever since. It is operated by Bangkok Mass Transit System Public Company Limited (BTSC) under a concession from the Bangkok Metropolitan Administration (BMA).

The core network consists of two lines that share a single fare system, often called the Green Line: the Sukhumvit Line (Light Green) and the Silom Line (Dark Green). They meet at Siam station in the heart of downtown Bangkok. A separate, shorter monorail called the Gold Line links the Silom Line to the ICONSIAM riverside district and runs on its own ticket.

The BTS Sukhumvit Line (Light Green Line): Bangkok's Longest Route

The BTS Sukhumvit Line (Light Green Line) runs 47 stations from Khu Khot in the north, through Pathum Thani and central Bangkok, down to Kheha in Samut Prakan province to the south. It passes through some of the city's busiest commercial strips, including Mo Chit, Siam, Asok, and Phrom Phong, before continuing out along Sukhumvit Road toward the eastern suburbs.

Neighborhoods like On Nut and Ari have grown into some of the most popular residential pockets along the line, each with a distinct character worth exploring on its own.

The BTS Silom Line (Dark Green Line): Business District to the River

The BTS Silom Line runs 14 stations from National Stadium, through the Silom and Sathorn financial district, across the Chao Phraya River, and out to Bang Wa on the Thonburi side of the city. It is shorter than the Sukhumvit Line but carries heavy commuter traffic through Bangkok's core business area.

Historic pockets on the Thonburi side, such as Talat Phlu, sit alongside the corporate towers near Sala Daeng, where the line meets the MRT Silom station on the Blue Line.

The BTS Gold Line: A Separate Ticket to ICONSIAM

The Gold Line is a small automated monorail with just 3 stations: Krung Thon Buri, Charoen Nakhon, and Khlong San. It connects to the Silom Line at Krung Thon Buri and primarily serves the ICONSIAM shopping complex and the fast-growing riverside neighborhoods of Khlong San district.

The Gold Line runs on its own flat fare and is not included in the BTS One-Day Pass, so a separate ticket is needed when transferring from the Green Line.

BTS Fares and Tickets in 2026

Fares on the Sukhumvit and Silom lines follow a single distance-based structure. Under the Bangkok Metropolitan Administration's fare adjustment, effective November 1, 2025, the old flat 15 baht rate on the outer extensions was replaced with distance-based pricing, and the maximum through fare rose to 65 baht.

Operating Hours and Train Frequency

The system's stated operating window is 6:00 AM to midnight, though some end stations see trains as early as 5:30 AM. During weekday peak periods, from 7:00 to 9:00 AM and 4:00 to 7:00 PM, trains run as often as every 2 to 3 minutes on the busiest short-run segments, with full end-to-end services closer to every 5 minutes. Outside those windows, and on weekends, expect a train roughly every 5 to 8 minutes.

Connecting to Bangkok's Other Transit Lines

Siam station is the only point where the Sukhumvit and Silom lines cross platforms directly. Beyond that, the BTS links to several other systems across the city:

• MRT Blue Line: interchanges at Mo Chit, Ha Yaek Lat Phrao, Asok, Sala Daeng, and Bang Wa

• Airport Rail Link: connects at Phaya Thai station on the Sukhumvit Line

• MRT Yellow Line: connects at Samrong station

• MRT Pink Line: connects at Wat Phra Sri Mahathat station

• Gold Line: connects at Krung Thon Buri station on the Silom Line

For a full picture of how these systems fit together, see the complete guide to Bangkok's train network, covering the BTS, MRT, Airport Rail Link, and SRT in one place.

Tips for Using the BTS Skytrain

• Buy a Rabbit Card at any station to skip the single ticket queues and top it up as needed

• Avoid the 7 to 9 AM and 4 to 7 PM rush if possible, especially through Siam and Asok

• Allow extra time to change lines at Siam station, which gets crowded during peak hours

• Use the BTS Skytrain fare calculator or a maps app to confirm the exact fare before boarding

• Remember the Gold Line needs its own ticket even when connecting straight from the Silom Line

Best BTS Stations for Foreign Buyers and Expats to Live Near

Proximity to a BTS station remains one of the strongest price drivers in Bangkok's condo market. According to Cushman and Wakefield Thailand data reported by the Bangkok Post, newly launched condo units averaged 120,364 baht per square metre citywide in the first half of 2026, up 9.4 percent from late 2025. That figure accelerated sharply in the second quarter alone, to 150,420 baht per square metre, as roughly 90 percent of that quarter's launches concentrated along the Sukhumvit Line outside the central business district.

Thonglor, Phrom Phong, and Asok remain the classic expat corridor, popular for international schools, malls, and restaurants. Browse current properties near BTS Thonglor or wider condos for sale in Bangkok to compare current listings along the line.

Ari draws a younger, cafe-focused crowd at more moderate prices, while Sala Daeng and Chong Nonsi on the Silom Line suit anyone working in the Silom and Sathorn financial district. Further out along either line, units cost less, but the commute into the centre takes longer.

Foreign buyers can hold a condo unit freehold as long as total foreign ownership in the building stays within the 49 percent quota. Land itself cannot be owned outright by a foreigner. The usual routes are a registered leasehold of up to 30 years or a Thai company structure, and a licensed Thai lawyer should confirm the right approach for any specific purchase.

For a broader look at where value is shifting along the network, see this Skytrain investment guide.

Start Exploring the BTS Skytrain

Whether the goal is a shorter commute, easier access to Bangkok's malls and restaurants, or a condo within walking distance of a station, the BTS Skytrain shapes how most of the city gets around. Use the station tables above to map out a route, check current fares before heading out, and browse listings along the line that fit the lifestyle and budget in mind.