From Bangkok, there are 3 routes to Chachoengsao;

1. Use highway No.304, via Min Buri, with the distance of 82 kilometers.
2. Use Bang Na – Trat highway, turn left before reaching the bridge over Bang Pakong River to highway No.314. The total distance is 100 kilometers.
3. Use highway No.3, via Samut Prakarn and Bang Pakong, then turn left to highway No.314. The total distance is 106 kilometers.

There are buses leaving from 2 bus terminals: From Mor Chit 2 Bus Terminal. First and second-class air-conditioned buses leave every 40 minutes during 06:00 – 17:00 hrs. Regular buses leave every 30 minutes during 05:40 – 19:00 hrs. From Eastern Bus Terminal (at Ekkamai) First class air-conditioned buses leave every 40 minutes during 06:30 – 17:00 hrs. Regular buses leave every 30 minutes during 05:40 – 19:00 hrs. The fare is up to 80 Baht.

The trains from Hua Lamphong Station to Chachoengsao leave every day, 9 trains/day, both regular and air-conditioned during 06:00 – 17:25 hrs.

Travelling by boat is quite popular in the riverside cities or towns including Bangkok, Nonthaburi, Ayutthaya, Samut Songkhram, Nakhon Pathom, and Kanchanaburi. In those provinces, river excursions are operated by local tour operators. Boats for rent are also available at major piers. The price should be established before beginning the trip.

Between Bangkok and Nonthaburi, regular boats run along the Chao Phraya River with frequent stops to pick up and drop their passengers. The boats are usually crowded during the rush hours of a working day.