Blue Line MRT Map: Bangkok’s 43 Stations & Fares 2024

The MRT Blue Line is Bangkok’s connective tissue — 43 stations threading through markets, offices, and neighborhoods that buses simply cannot reach. For commuters mapping their route in 2024, this line is less a nice-to-know and more a survival skill. This guide walks through every station, the fare system, and how the Blue Line stacks up against the BTS Skytrain, all anchored to the latest available data.

Number of Stations: 43 · Line Length: 48.6 km · Opened: 2017 · Operator: BEM · Daily Ridership: 500,000+

This technical overview confirms the operational parameters of Bangkok’s underground and elevated metro corridor.

What is the Blue Line MRT?

The Blue Line MRT is Bangkok’s third rapid transit corridor, running from Tha Phra in the west through the city’s central business district to Lak Song in the southeast. Operated by Bangkok Expressway and Metro (BEM), it opened in phases between 2004 and 2019, with the final western extension completing in December 2019 (Wikipedia). The line carries more than 500,000 passengers daily across its 43 stations, making it the busiest route in the MRT network.

Route Overview

The line stretches approximately 48.6 km, with the central section running underground through areas like Sukhumvit and Silom, and outer sections running elevated on concrete viaducts. This mix of tunnel and elevated track is unusual — most Asian metros commit to one or the other — but it reflects Bangkok’s constrained central corridor where tunneling was the only viable option.

Operator and History

BEM operates the Blue Line under a concession from the Bangkok Metropolitan Administration. The initial 14-station segment from Bang Sue to Hua Lamphong opened on July 3, 2004, serving as the MRT’s inaugural line (Wikipedia). Subsequent phases extended both ends: eastward to Tao Poon in 2017, then southward through the Old Town with stations like Wat Mangkon and Sam Yot opening in July 2019, and finally westward to Tha Phra in late 2019.

What are the MRT stations list?

The Blue Line’s 43 stations run from BL01 (Tha Phra) to BL38 (Lak Song) in the west, and BL10 (Tao Poon) eastward. Station codes follow the “BL” prefix followed by a sequential number. The line splits geographically, with the western leg serving areas like Bang Khae and the main corridor running through the city center.

Stations from North to South

The northern terminus section includes Bang Sue (BL11), Phahon Yothin (BL14), Lat Phrao (BL15), and Ratchadaphisek (BL18), serving dense residential neighborhoods that rely heavily on the MRT for commutes into the central business district. Park & ride facilities are available at Lat Phrao, Phra Ram 9, and Sam Yan stations (Wikipedia).

A sample of key stations demonstrates the phased rollout from 2004 through 2019.

The southern extension through the Old Town added stations like Wat Mangkon (BL29) and Sam Yot (BL30) with stacked platform configurations to accommodate narrow street widths, while the September 2019 openings at Bang Khae and Lak Song introduced elevated side-platform stations for the first time on this line.

Key Interchange Stations

Interchange points define how the Blue Line connects with Bangkok’s broader transit ecosystem. Bang Sue (BL11) serves as the northern anchor, linking to SRT commuter rail, the Airport Rail Link, and the planned high-speed rail to Chiang Mai. Tao Poon (BL10) connects eastward riders to the Purple Line. Phetchaburi (BL21) links to Makkasan, where travelers can board the Airport Rail Link to Suvarnabhumi Airport (Wikipedia).

Is Blue Line MRT or BTS?

The Blue Line is an MRT line, operated by BEM, not the BTS Skytrain. This distinction matters because the two systems have different ticketing systems, different infrastructure standards, and different fare structures. MRT lines run underground through central Bangkok, while BTS lines (the Skytrain) run elevated on above-ground viaducts.

MRT vs BTS Differences

Bangkok’s MRT network consists of four lines: Blue, Purple, Yellow, and Pink, with Blue being the longest and most heavily used (Transit Bangkok). The Yellow and Pink lines are operated by BTS, not BEM — an arrangement that creates a two-operator ecosystem under the MRTA framework. In central Bangkok, MRT lines are tunneled underground; outside the central zone, both MRT and BTS lines can be elevated.

The infrastructure, operator, and operational history differ substantially between the two systems.

The practical implication for riders: a journey across town using both systems requires separate top-ups and potentially a transfer at interchange stations like Silom or Sukhumvit, where BTS and MRT stations share proximity but are not integrated under one fare gate.

How much is the blue line in Bangkok?

MRT fares in Bangkok are distance-based, starting around THB 16 for short trips and scaling upward for longer journeys. The system accepts the MRT Rabbit card, bank contactless cards, and single-ride tokens purchased at station kiosks. Tourist passes offering unlimited rides over set periods are available at major stations for visitors who plan frequent use.

Fare Structure

Fares typically range from THB 16 to THB 42 depending on distance traveled. A trip from Bang Sue to Hua Lamphong (14 stations) would fall at the higher end of that range, while a single-station hop costs the minimum fare. Children, seniors, and disabled riders qualify for discounted fares upon presenting appropriate identification.

Ticket Types

• MRT Rabbit Card: Reloadable stored-value card accepted across all MRT lines. Available at station counters with a THB 100 deposit plus loaded value.
• Single-ride Token: Paper token purchased for individual journeys. Requires exact fare or change at kiosk.
• Contactless Bank Card: Visa, Mastercard, and certain debit cards with contactless capability are accepted directly at gantries — no need for a separate card.
• Tourist Pass: Unlimited rides for 1, 3, or 5 consecutive days. Ideal for visitors covering multiple attractions in a short timeframe.

Which is better in Bangkok, MRT or BTS?

Neither system is universally better — the answer depends on where you’re going. The MRT Blue Line dominates north-south travel through Bangkok’s central corridor, while the BTS Skytrain excels in serving the Sukhumvit and Silom commercial districts that lie along its elevated routes. Choosing the right line means matching your destination to the network geometry.

Coverage Comparison

The BTS Skytrain covers Sukhumvit Road (the longest urban avenue in Thailand) and the riverside Silom district with stations at Nana, Asok, Phrom Phong, and Sala Daeng. The MRT Blue Line reaches areas the Skytrain cannot, including Bang Sue (connecting to railway and airport services), the Old Town temples near Wat Mangkon, and the Thonburi west bank via Tha Phra.

Crowd and Speed

MRT Blue Line trains run at shorter headways during peak hours than some BTS lines, but the underground stations mean longer vertical walks (escalators and elevators are available at most but not all stations). BTS elevated stations offer faster boarding access from street level, though during rush hour the Skytrain’s platforms at Asok and Siam can become severely congested.

The implication: for travelers staying in the Sukhumvit-Silom axis, the BTS gets you closer to hotels and shopping. For anyone heading to Chatuchak market, the railway station, or the Old Town, the Blue Line MRT is non-negotiable.