Yellow Flag Boat Bangkok is a public river ferry line operated by Chao Phraya Express Boat in Bangkok. If you are looking for the most affordable way to explore the Chao Phraya River and the riverside tourist attractions during the daytime, discover the Bangkok Yellow Flag Boat timetable, route, and ticket price.
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Bangkok Chao Phraya River Boats
The Chao Phraya Express Boat service operates along the Chao Phraya River and, together with cross-river ferries, connects both banks of the river in Bangkok. The public boat service is very useful for commuting in the central part of the city as well as for sightseeing, with a number of Bangkok’s top attractions, such as the Grand Palace, Wat Arun, and others, situated by the river.
Here you will find the most important information about an affordable Bangkok river boat route that is operating instead of the Orange Flag Boat during some hours - the Chao Phraya Express Boat Yellow Flag Line.
Yellow Flag Boat Bangkok - Chao Phraya Express Boat
Yellow Flag is the express service running from Nonthaburi Pier (N30) to Sathorn Pier (Central). Previously, this express boat service was operating on weekdays and during rush hour only. Currently, Bangkok Yellow Flag boats also operate between 09:10 and 15:20 on weekdays and all day on weekends and public holidays, when they change the Orange Flag Boat, with several additional stops added to the route during these hours.
Bangkok Yellow Flag Boat Route
The original Chao Phraya Express Yellow Flag Boat service, which is aimed at speeding up boat trips during rush hour, is offered at 15 piers along the Chao Phraya River, making traveling on it significantly faster than the Orange Boat with a double number of stops. The route ends at the Central Pier, which is also called Sathorn Pier and is the main hub of Bangkok river boats, where you can conveniently transfer to the BTS SkyTrain at BTS Saphan Taksin station to reach different areas in Bangkok by train.
Original Bangkok Yellow Flag Boat Route
The original Chao Phraya Express Yellow Flag Boat route used by Yellow Flag boats that operate only on weekdays from 06:00 to 08:05 in the morning and from 17:15 to 19:05 in the evening is as follows (south to north):
- Central Pier / Sathorn Pier – connection with BTS Saphan Taksin station
- N3 / Si Phraya Pier
- N4 / Marine Department Pier
- N5 / Rachawongse Pier – Chinatown, Sampheng Market
- N7 / Rajinee Pier – Ferry Crossing to the Old Portuguese Quarter and Santa Cruz Church, close to MRT Blue Line Sanam Chai station
- N9 / Tha Chang Pier – Grand Palace and Wat Phra Kaew (Temple of the Emerald Buddha)
- N10 / Prannok (Wang Lang) Pier – Wang Lang Market
- N11 / Thonburi Railway Station Pier – Bangkok Thonburi train station
- N12 / Phra Pinklao Bridge Pier – National Museum of Royal Barges
- N15 / Thewet Pier - 200 m from the pier of Khlong Phadung Krung Kasem Boat
- N18 / Payap Pier
- N21 / Kiak Kai Pier
- N22 / Bang Po Pier - connection with MRT Bang Pho station
- N24 / Rama 7 Bridge Pier
- N30 / Nonthaburi (Pibul 3) Pier
Extended Bangkok Yellow Flag Boat Route
Starting from 18 March 2026, the Bangkok Yellow Flag Boat has changed the Orange Flag Boat not only between 09:10 and 15:20 on weekdays but also all day on weekends and public holidays.
During these off-peak hours, the Yellow Flag Boat route is extended and is similar to the Orange Flag Boat route with 24 stops on the route that are as follows (south to north):
S3 / Wat Rajsingkorn Pier (close to Ramada Plaza Bangkok Menam Riverside)
Central Pier / Sathorn Pier – connection with BTS Saphan Taksin station (next to Shangri-La Bangkok)
I⭐ / ICONSIAM Pier – ICONSIAM shopping mall and the BTS Gold Line (nearby Millennium Hilton Bangkok & The Peninsula Bangkok)
N3 / Si Phraya Pier (next to Royal Orchid Sheraton Riverside Hotel Bangkok)
N5 / Ratchawong Pier – Chinatown (next to PIER 808 Hostel)
N6 / Memorial Bridge Pier – Memorial Bridge
N7 / Rajinee Pier – close to MRT Sanam Chai station (nearby Riva Arun Bangkok)
N8 / Tha Tien Pier – Wat Pho (nearby Sala Rattanakosin Bangkok)
Pay attention that even in the daytime, the Bangkok Yellow Flag Boat doesn't stop at Wat Arun. To get there directly, you need to take the Blue Flag Boat. Otherwise, you can drop off at Tha Tien Pier and use the river-crossing ferry service.
N9 / Tha Chang Pier – Grand Palace and Wat Phra Kaew
N10 / Prannok (Wang Lang) Pier – Wang Lang Market (nearby Baan Wanglang Riverside)
N11 / Thonburi Railway Station Pier – Bangkok Thonburi train station
N12 / Phra Pinklao Bridge Pier – National Museum of Royal Barges
N13 / Phra Arthit Pier – Khao San Road (nearby Riva Surya Bangkok)
N15 / Thewet Pier - 200 m from the pier of Khlong Phadung Krung Kasem Boat
N16 / Krung Thon Bridge Pier (nearby The Royal River Hotel)
N18 / Payap Pier
N21 / Kiak Kai Pier
N22 / Bang Po Pier - connection with MRT Bang Pho station
N23 / Wat Soi Thong Pier
N24 / Rama 7 Bridge Pier
N27 / Wat Tuek Pier
N28 / Wat Khien Pier
N29/1 / Rama 5 Bridge Pier
N30 / Nonthaburi (Pibul 3) Pier
The latest route map of both Yellow Flag Boat routes in comparison with other Bangkok river boat routes can be seen below.
Bangkok Yellow Flag Boat Price & Tickets
The Chao Phraya Express Yellow Flag Boat ticket price after the latest decrease from 1 May 2026 is 23 THB for a single trip.
Yellow Flag Boat tickets can be bought at the ticket desk found at the pier. Normally separate desks are set up for different boat services.
If you are going to take single trips on ordinary riverboat lines, you can make traveling easier by purchasing a Rabbit Card that can be topped up and used for traveling not only with Chao Phraya Express Boat but also with BTS SkyTrain, MRT Yellow Line, and MRT Pink Line. The Rabbit card can also be conveniently picked up at the airport by booking online here: Rabbit Card online.
Chao Phraya Tourist Boat (Blue Flag) has separate tickets. You can buy a one-day pass for 150 THB and hop on and hop off the Blue Flag Boat as many times as you wish throughout the day (book online Chao Phraya Tourist Boat tickets). It is also possible to buy a ticket for a single trip on this boat that costs 40 THB.
A bigger discount for Chao Phraya Tourist Boat tickets is offered here: Chao Phraya Tourist Boat Bangkok Hop-On-Hop-Off Sightseeing Boat.
Bangkok Yellow Flag Boat Timetable
The Chao Phraya Express Yellow Flag Boat timetable from 18 May 2026 is the following:
Original Route Nonthaburi-Sathorn
Monday-Friday:
- From Nonthaburi: 06:00, 06:20, 06:40, 07:00, 07:15, 07:45, 08:05
- From Sathorn: 17:15, 17:35, 18:00, 18:20, 18:40, 19:05
Extended Route Nonthaburi-Wat Rajsingkorn
Yellow Flag boats on the extended route operate daily.
Between 08:10 and 15:40, the Bangkok Yellow Flag Boat has changed the Orange Flag Boat with an extended route that spans to Wat Rajsingkorn and makes more stops on the way. Starting from 13 March 2026, the Yellow Flag Boat has fully changed the Orange Flag Boat on weekends and public holidays.
Monday-Friday:
- From Nonthaburi: 08:10, 08:40, 09:10, 09:40, 10:10, 10:40, 11:00, 11:20, 11:40, 12:10, 12:40, 13:10, 13:40, 14:10, 14:40, 15:10, 15:40
- From Wat Rajsingkorn: 08:10, 08:40, 09:10, 09:40, 10:10, 10:40, 11:00, 11:20, 11:40, 12:10, 12:40, 13:10, 13:40, 14:00, 14:20, 14:40, 15:00, 15:20
Saturday & public holidays:
- From Nonthaburi: 07:30, 08:00, 08:40, 09:20, 10:00, 10:40, 11:10, 11:40, 12:10, 12:40, 13:10, 13:40, 14:00, 14:20, 14:40, 15:00, 15:20, 15:45, 16:10, 16:40, 17:00
- From Wat Rajsingkorn: 08:40, 09:20, 10:00, 10:40, 11:10, 11:40, 12:10, 12:40, 13:10, 13:40, 14:10, 14:40, 15:00, 15:20, 15:40, 16:00, 16:20, 16:40, 17:00, 17:20, 17:45
Sunday:
- From Nonthaburi: 08:40, 09:20, 10:00, 10:40, 11:10, 11:40, 12:10, 12:40, 13:10, 13:40, 14:00, 14:20, 14:40, 15:00, 15:20, 15:45, 16:10, 16:35, 17:00
- From Wat Rajsingkorn: 09:40, 10:20, 11:00, 11:40, 12:10, 12:40, 13:10, 13:40, 14:10, 14:40, 15:00, 15:20, 15:40, 16:00, 16:20, 16:40, 17:00, 17:20, 17:45
Other Chao Phraya Boat Types in Bangkok
There are currently 5 types of Bangkok riverboats operated by the Chao Phraya Express Boat company. The types of boats are differentiated by the color of the flag: blue, orange, yellow, green-yellow, and red. Different types of express boats stop at different piers along the way.
Blue Flag Boat Bangkok is a Chao Phraya tourist boat service running from Phra Arthit Pier to Sathorn Pier. From 11:30 to 19:00, the route is extended all the way to Asiatique the Riverfront. The Chao Phraya Tourist Boat is one of the best ways to explore Bangkok’s attractions along the Chao Phraya River, as you can use it not only for single trips but also as a hop-on, hop-off service by purchasing a one-day Chao Phraya Tourist Boat ticket.
Orange Flag Boat Bangkok is the most affordable express boat service, running all the way from Nonthaburi Pier (N30) to Wat Rajsingkorn Pier (S3) on weekday mornings and later afternoons.
Green Yellow Flag boats run from Pakkret Pier (N33) to Sathorn Pier (Central), but they are even less frequent than Yellow Flag boats and operate on weekdays and during rush hour only.
Red Flag express boats operate between Nonthaburi Pier (N30) and Sathorn Pier (Central) only on weekdays and during rush hour only.
Thai Smile Boat, previously known as MINE Smart Ferry, is an electric Bangkok riverboat service also operating on the Chao Phraya River. It's a more environmentally friendly alternative to the Chao Phraya Express Boat. Thai Smile Boat currently operates 2 routes in Bangkok.
Chao Phraya Express Boat services are complemented by Bangkok’s cross-river ferries, available at most of the main piers for crossing to the opposite bank of the river.
Tips
What is the best area to stay in Bangkok if you are willing to use riverboats as your main mode of transportation in Bangkok? The answer can be found here: Where to Stay in Bangkok.
For a special experience on the Chao Phraya River, choose one of the scenic Bangkok River Dinner Cruises.
Join the Ayutthaya Day Tour with River Cruise and visit the ancient city of Ayutthaya, the capital of Siam. Enjoy a river cruise and take in the beautiful scenery and sites along the Chao Phraya River on the way back from Ayutthaya to Bangkok.
