By NaJade · DJ in Bangkok · Published October 20, 2026
The Chao Phraya Express Boat is Bangkok’s river bus, running along the Chao Phraya between Nonthaburi in the north and Sathorn in the centre. Boats are identified by flag colour: the orange flag stops at most piers for around 19 baht (October 2026), while the blue-flag tourist boat costs 40 baht a ride or 150 baht for a day pass and runs every day. Board at Sathorn Pier, next to BTS Saphan Taksin.
I take the river whenever I can — it is the one Bangkok commute where you get a breeze, a view of Wat Arun and no traffic at all. It is also confusing the first time: there is no big map on the boat, the flags all look similar, and the conductor wants cash fast. Once you know the flag system, it becomes the easiest way to reach the old city.
Go to Sathorn Pier at BTS Saphan Taksin. On weekdays, the orange-flag express boat is the cheapest ride to the old town at around 19 baht. Every day, the blue-flag tourist boat costs 40 baht a trip or 150 baht for a day pass and stops at Wat Arun. Carry small notes — most fares are paid in cash.
What the Flag Colours Mean
Every Chao Phraya Express boat flies a coloured flag on its roof. The colour tells you how many piers it stops at and what it costs. Fares are flat per trip and are linked to diesel prices, so they moved several times during 2026 — these were the rates after the 5 October 2026 change:
| Flag | Route | Fare (Oct 2026) | Best for |
|---|---|---|---|
| Orange | Nonthaburi – Wat Rajsingkorn | 19 baht | Most visitors: stops at nearly every central pier |
| Yellow | Nonthaburi – Sathorn | 24 baht | Faster commuter runs, skips piers |
| Green-yellow | Pak Kret – Sathorn | 17–36 baht | Going far north to Pak Kret |
| Red | Nonthaburi – Sathorn | 33 baht | Limited-stop rush-hour service |
| Blue (tourist boat) | Sathorn – Phra Arthit | 40 baht or 150 baht day pass | Sightseeing, weekends, Wat Arun |
The express flags are commuter services and run mostly on weekdays, concentrated around the morning and evening rush, with timetables that change. The blue-flag tourist boat runs every day from morning to early evening, roughly every 30 minutes. Check the board at the pier, or the operator’s site at chaophrayaexpressboat.com, before you plan around a specific boat.
The Piers Visitors Actually Use
Each pier has a number and a name, painted on a sign at the end of the jetty. These are the ones that matter for a first trip, from south to north:
| Pier | What’s there |
|---|---|
| Sathorn (Central Pier) | Connects to BTS Saphan Taksin — the main starting point |
| Si Phraya | Riverside hotels, River City Bangkok |
| Ratchawong | Chinatown and Sampeng market |
| Tha Tien | Wat Pho; cross-river ferry to Wat Arun |
| Tha Chang | Grand Palace and Wat Phra Kaew |
| Phra Arthit | Khao San Road and Banglamphu |
The orange flag does not stop at Wat Arun itself. Get off at Tha Tien and take the small cross-river ferry, or use the blue-flag tourist boat, which calls there directly. For what to see once you land, see things to do in Bangkok and the Bangkok in 3 days itinerary.
How to Ride: Step by Step
- Take the BTS to Saphan Taksin and follow signs to Sathorn Pier, a short walk from Exit 2.
- Pick your queue. Tourist boat tickets are sold at their own desk; express boats have separate lanes. Staff will point you to the right one if you say your destination.
- Check the flag as the boat arrives. Boats stop for only a few seconds — step on promptly, but carefully.
- Pay the fare. On express boats a conductor with a metal ticket tube collects cash on board, or you pay at the pier kiosk. Have small notes and coins ready.
- Watch the pier signs and move to the back of the boat a stop before yours.
Cash is the safe bet on the river, so keep 20s and coins in your pocket — our money in Bangkok guide explains where to get small notes without paying ATM fees.
Express Boat vs Tourist Boat vs Long-Tail
- Orange flag: cheapest and most local. Crowded at rush hour, no commentary, weekday-focused.
- Blue-flag tourist boat: more than double the price but still cheap, runs daily, English commentary, simpler stops. The 150-baht day pass only pays off from the fourth ride.
- Private long-tail boats: negotiated per boat, usually for canal tours in Thonburi. Agree the price and duration before you get in, and ignore touts at the pier who say the public boat is “closed” — see Bangkok scams to avoid.
Tips From the River
- Go mid-morning or late afternoon for softer light and fewer commuters. Sunset from the boat, with Wat Arun lit up, is hard to beat.
- Dress for the temples you are heading to. Shoulders and knees covered — see what to wear in Bangkok.
- Keep your phone in a zipped pocket. Boats rock, and the river does not give things back.
- Let people off first and give up seats for monks, older passengers and children.
- Rain and high water can disrupt service in the wet season; the Tourism Authority of Thailand posts major travel notices.
For how the boat fits with the BTS, MRT and Grab, read how to get around Bangkok.
A Note From NaJade
Some of my favourite moments in this city have been on that orange boat, record bag between my feet, heading to a sound check near the old town while the rest of Bangkok sat in traffic. It costs less than a coffee and it is still the best view in the city. My only advice: do not overthink the flags. If you are a visitor with a free day, buy the tourist boat day pass and hop on and off; if you are going somewhere on a weekday morning, ride the orange flag like a local. Just keep small change ready, step on with purpose, and smile at the conductor.
More: how to get around Bangkok, where to stay in Bangkok, the best markets in Bangkok, and Thai etiquette for visitors.
Frequently Asked Questions
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About the Author
NaJade is a Bangkok-based DJ playing progressive house, melodic EDM, pop, and Thai music across clubs, rooftops, and weddings in Thailand — and has lived in the city long enough to have made every one of these mistakes at least once. Find him on YouTube, Instagram, and TikTok.
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