The Department of Highways is preparing to open a trial use. M6 Motorway. or. Special Highway No. 6. Bang Pa-in to Nakhon Ratchasima (Korat) route. Covering a total distance of 196 kilometers, it will allow the public to travel free to the Northeast during the 2026 Songkran festival, aiming to ease heavy traffic during this long holiday period.
Thairath Online. Here is a summary of the information for you. M6 Motorway Bang Pa-in to Nakhon Ratchasima. When does free trial use start, and where are the entry points? Check the Bangkok inbound and outbound routes to plan your trip more easily.
The Department of Highways is preparing to open a trial service for the M6 Motorway from Bang Pa-in through Pak Chong to Nakhon Ratchasima, covering 196 kilometers, from 10 to 19 April 2026 (10 days). This aims to accommodate traveler volume, reduce congestion on Mittraphap and Phahonyothin roads, and improve travel convenience to the Northeast during the 2026 Songkran festival.
Where is the M6 Motorway Bang Pa-in to Nakhon Ratchasima located? The Department of Highways recommends three options for driving from Bangkok to access the M6 Motorway to Nakhon Ratchasima, following signs marked "Number 6" along the route as follows."Number 6"is visible along the entire route as follows.
1. At Bang Pa-in toll plaza from Kanchanaphisek Road (Eastern Ring Road).
2. From Kanchanaphisek Road (Western Ring Road).
3. From Phahonyothin Road outbound (in front of Mahachulalongkornrajavidyalaya University).
During the 2026 Songkran holidays, the Department of Highways is offering the public a trial use of Special Highway No. 6, or"M6 Motorway"Bang Pa-in to Nakhon Ratchasima route. Check the Bangkok inbound and outbound routes as detailed below.
Free trial opening dates: From 00:01 on 10 April 2026 until 24:00 on 13 April 2026.
M6 Motorway entry and exit points: : Bang Pa-in toll plaza, Hin Kong toll plaza, Saraburi toll plaza, Kaeng Khoi toll plaza, and Pak Chong toll plaza. Additionally, the Department of Highways will open the "Muak Lek toll plaza" for the first time to help relieve traffic onto Mittraphap Road (Highway 2) and provide another travel option for the public.
Free trial opening dates: From 06:00 on 14 April 2026 until 24:00 on 19 April 2026.
M6 Motorway entry and exit points: : Pak Chong toll plaza, Kaeng Khoi toll plaza, Saraburi toll plaza, Hin Kong toll plaza, or exit at Bang Pa-in toll plaza. These connect to Phahonyothin Road and the Western and Eastern Kanchanaphisek Ring Roads.
There will be a temporary closure from Bang Pa-in interchange to Pak Chong toll plaza on Tuesday, 14 April 2026, from 00:00 to 06:00 to switch traffic directions and prepare for inbound traffic.
Since this is a trial service period, only four-wheeled vehicles are permitted, with a speed limit not exceeding 80 km/h. Currently, this route has no gas stations, electric vehicle charging points, or service shops.
Therefore, the Department of Highways advises travelers to study the route and prepare well before departure, refuel, and bring sufficient food and water before entering the motorway. For more information, contact the Department of Highways hotline 1586, available 24 hours, toll-free.
Source of information:Intercity Highway Division,,Department of Highways Facebook page