By Public Transit
Yaowarat and Phahurat can directly be reached by metro if you are coming from Silom, Sukhumvit or Ratchadaphisek. The only station close to the district is Hua Lamphong at the eastern side. The metro ride from Silom takes about five minutes, while the ride from Sukhumvit takes about ten minutes. Trains leave every five to ten minutes for a fare of about 16 to 41 baht. From the metro station, it is a 20 minute walk to the centre of Yaowarat.
By ship
Due to its location at the Chao Phraya River, most visitors enter Yaowarat and Phahurat using the Chao Phraya Express Boat service. A single trip from Rattanakosin or Silom takes about 20 minutes and costs around 18 baht. The most important stops are the Rachawongse and Si Phraya piers, both of which are served by all lines. Rachawongse is an ideal stop for central Yaowarat, while Si Phraya is close to the southeastern part of the district. Phahurat can best be reached using the Memorial Bridge pier saphan phut, which is only attended by no-flag and orange flag lines. Other piers that could be useful are Rachini and Marine Department, both of which are only served by no-flag lines.
If you're coming from Thonburi, you can cross the river by taking a ferry. There is a ferry service from Kanlayanamit to Pak Khlong Talat, from Dindaeng to Rachawongse and from Klongsan to Si Phraya. Ferries leave about every 15 minutes for just 3 baht.
By train
Yaowarat and Phahurat can easily be reached from Hualamphong Train Station, which is located at the eastern border of the district. Trains come in and go to many destinations in Thailand, including Ayutthaya, Kanchanaburi, Chiang Mai and Southern Thailand.
By bus
The bus system in Bangkok is complex, but it is actually one of the cheapest ways to travel around the city. Many lines run through the district, but let's start with a warning: as Yaowarat Road is a one-way road, bus lines only use it in westwards direction to Rattanakosin. Buses going east use Charoen Krung Road instead!
Ordinary and air-conditioned bus 25 is the most important bus route. It starts in the far southeast of Sukhumvit Road, then follows that road northwest before heading through Ratchaprasong intersection for Siam Square, Ratchadamri Road, Silom intersection, Rama IV Road, Hualamphong Train Station and then runs right through Yaowarat Road and Phahurat Road. This route can also be taken from the other direction, then it comes from Tha Chang pier near the Grand Palace in Rattanakosin and takes Charoen Krung Road instead of Yaowarat Road.
From Khao San Road, catch ordinary circular bus 56 which runs along Tanao Road at the eastern tip of Khao San Road and then goes south through Maha Chai Road and Chakphet Road get off after the Merry King department store for Phahurat Road and Sampeng Lane; don't miss it, as it will cross the bridge to Thonburi right after. Ordinary bus 4 comes from Silom intersection along Rama IV Road and passes Hualamphong Train Station through Yaowarat Road and then goes southwest over the Phra Pok Klao bridge to Thonburi as with all routes, in eastwards direction Yaowarat Road is skipped in favour of Charoen Krung Road.