Last Updated: 6th January, 2026

Train Number 21 from Bangkok (Krung Thep Aphiwat) to Ubon Ratchathani – Complete Timetable & Travel Duration

Train Number 21 operates between Bangkok (Krung Thep Aphiwat) and Ubon Ratchathani, stopping at 18 stations across Thailand.

Departure from Bangkok (Krung Thep Aphiwat) at 06:10 and arrival in Ubon Ratchathani at 14:00. Total journey time is approximately 7h 50m. Major stops include Don Mueang, Rangsit, Ayutthaya, Saraburi, Kaeng Khoi Junction.

Train 21 Route Overview

Departure

Bangkok (Krung Thep Aphiwat)

Departs at 06:10

Direct Railway Route

Arrival

Ubon Ratchathani

Arrives at 14:00

Estimated Travel Time

7h 50m

Operating Schedule

Runs Daily (7 Days a Week)

Full Timetable for Train No. 21

Below is the complete station-by-station schedule including arrival and departure times for Train 21 from Bangkok (Krung Thep Aphiwat) to Ubon Ratchathani.

Station	Arrival	Departure
Bangkok (Krung Thep Aphiwat)	05:50	06:10
Don Mueang	06:25	06:27
Rangsit	06:36	06:37
Ayutthaya	06:58	06:59
Saraburi	07:33	07:34
Kaeng Khoi Junction	07:44	07:45
Pak Chong	08:43	08:44
Nakhon Ratchasima	10:01	10:11
Thanon Chira Junction	10:17	10:18
Lam Plai Mat	11:13	11:14
Buri Ram	11:34	11:37
Krasang	11:53	11:54
Surin	12:09	12:11
Sikhoraphum	12:32	12:33
Uthumphon Phisai	13:01	13:02
Si Sa Ket	13:18	13:20
Kanthararom	13:38	13:39
Ubon Ratchathani	14:00	-

Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday

Journey Details

Departure: Train #21 (Special Exp.) departs from Bangkok (Krung Thep Aphiwat) at 06:10.

• Stops at Don Mueang, arriving at 06:25 and departing at 06:27.

• Stops at Rangsit, arriving at 06:36 and departing at 06:37.

• Stops at Ayutthaya, arriving at 06:58 and departing at 06:59.

• Stops at Saraburi, arriving at 07:33 and departing at 07:34.

• Stops at Kaeng Khoi Junction, arriving at 07:44 and departing at 07:45.

• Stops at Pak Chong, arriving at 08:43 and departing at 08:44.

• Stops at Nakhon Ratchasima, arriving at 10:01 and departing at 10:11.

• Stops at Thanon Chira Junction, arriving at 10:17 and departing at 10:18.

• Stops at Lam Plai Mat, arriving at 11:13 and departing at 11:14.

• Stops at Buri Ram, arriving at 11:34 and departing at 11:37.

• Stops at Krasang, arriving at 11:53 and departing at 11:54.

• Stops at Surin, arriving at 12:09 and departing at 12:11.

• Stops at Sikhoraphum, arriving at 12:32 and departing at 12:33.

• Stops at Uthumphon Phisai, arriving at 13:01 and departing at 13:02.

• Stops at Si Sa Ket, arriving at 13:18 and departing at 13:20.

• Stops at Kanthararom, arriving at 13:38 and departing at 13:39.

Arrival: The train arrives at its destination, Ubon Ratchathani, at 14:00.

Note: This train operates daily. Please verify the schedule before your journey as timings may vary.

Train No. 21 - Frequently Asked Questions

What time does Train 21 depart from Bangkok (Krung Thep Aphiwat)?

Train 21 departs from Bangkok (Krung Thep Aphiwat) at 06:10. Passengers are advised to arrive at the station at least 15–30 minutes before departure time.

What time does Train 21 arrive in Ubon Ratchathani?

Train 21 arrives at Ubon Ratchathani at 14:00. Arrival times may vary slightly depending on operational conditions.

How long is the journey on Train 21?

The total travel time from Bangkok (Krung Thep Aphiwat) to Ubon Ratchathani on Train 21 is approximately 7h 50m. The duration may differ depending on stops and track conditions.

How many stations does Train 21 stop at?

Train 21 stops at 18 stations between Bangkok (Krung Thep Aphiwat) and Ubon Ratchathani, including major stations such as Don Mueang, Rangsit, Ayutthaya, Saraburi, Kaeng Khoi Junction.

On which days does Train 21 operate?

Train 21 operates daily (7 days a week) between Bangkok (Krung Thep Aphiwat) and Ubon Ratchathani.

Is Train 21 operated by Thailand Railway?

Yes, Train 21 is operated by the State Railway of Thailand (SRT) and follows the official Thailand railway timetable.

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