Bus Siam Square to Rayong from ฿301 | Tickets & Timetables

Trip Overview

The average bus between Siam Square and Rayong takes 5h and the fastest bus takes 4h 14m. There is a bus service every few hours from Siam Square to Rayong. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

5h
Duration: 200 km
Distance: ฿301
Average price: Hourly
Frequency

Bus

best

Take the bus from สยามเซ็นเตอร์;Siam Center to หน้าท่ารถตู้ต่างจังหวัด หมอชิต 2;Front Mochit 2 Intercty Van Terminalbus 2-52
Take the bus from Mochit Terminal Platform 3 to Rayong Tour Office Sai 4bus

5h 21m

฿197–334

Siam Square to Rayong bus times

Buses run hourly between Siam Square and Rayong. The earliest departure is at 6:15 AM in the morning, and the last departure from Siam Square is at 10:00 PM which arrives into Rayong at 8:30 AM. All services require a transfer at สยามเซ็นเตอร์;Siam Center and take an average of 5h. The schedules shown below are for the next available departures.

Departing Thursday, June 18, 2026

8:45 AM → 1:40 PM
4h 54m • 1 change
9:45 AM → 2:30 PM
4h 44m • 1 change
10:45 AM → 3:30 PM
4h 44m • 1 change
11:45 AM → 4:30 PM
4h 44m • 1 change
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Departing Friday, June 19, 2026

6:15 AM → 10:35 AM
4h 19m • 1 change
7:15 AM → 12:00 PM
4h 44m • 1 change
8:00 AM → 12:50 PM
4h 49m • 1 change
8:45 AM → 1:40 PM
4h 54m • 1 change
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Departing Saturday, June 20, 2026

6:15 AM → 10:35 AM
4h 19m • 1 change
7:15 AM → 12:00 PM
4h 44m • 1 change
8:00 AM → 12:50 PM
4h 49m • 1 change
8:45 AM → 1:40 PM
4h 54m • 1 change
Show more

Departing Sunday, June 21, 2026

6:15 AM → 10:35 AM
4h 19m • 1 change
7:15 AM → 12:00 PM
4h 44m • 1 change
8:00 AM → 12:50 PM
4h 49m • 1 change
8:45 AM → 1:40 PM
4h 54m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Siam Square to Rayong? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Map of how to get from Siam Square to Rayong.

Launch map view

Distance: 199.8 km
Duration: 5h

What companies run services between Siam Square, Thailand and Rayong, Thailand?

You can take a vehicle from Siam Square to Rayong Tour Office Sai 4 via สยามเซ็นเตอร์;Siam Center, หน้าท่ารถตู้ต่างจังหวัด หมอชิต 2;Front Mochit 2 Intercty Van Terminal, and Mochit Terminal Platform 3 in around 5h 21m.

Operators

Siam Square to Rayong buses

Trip Overview

Bus