S1 Bus is Bangkok's shuttle bus service, connecting Suvarnabhumi International Airport (BKK) with the historical center of Bangkok City. Taking Bangkok Bus S1 is the cheapest way to reach Khao San Road and Sanam Luang from Suvarnabhumi Airport directly.
Suvarnabhumi Airport S1 Bus
All buses running on Suvarnabhumi Airport S1 Bus route are air-conditioned. Older buses are orange but a number of new blue buses used on S1 Bus route is increasing. New buses are more comfortable as there's more space for dropping your backpack.
Bangkok S1 Bus Fare
Current Bangkok S1 Bus fare is 60 THB per person.
The ticket can be bought on board. So far the bus fare needs to be paid by cash only but there are plans to implement other payment methods too.
Bangkok S1 Bus Timetable
Bangkok S1 Bus service operates daily, from 6:00 to 20:00*.
The expected frequency of S1 Bus: every 30 minutes.
The journey to the final destination usually takes about 1.5 hours, depending on traffic conditions.
Important! *The noted S1 Bus service time from 6:00 to 20:00 is for departures from Suvarnabhumi Airport only! From Sanam Luang (Khao San Road) S1 Bus departs approximately 1 hour later (approximate service time - from 07:00 to 21:00).
Bangkok S1 Bus Route
S1 Bus runs from Suvarnabhumi Airport to the historical center of Bangkok with Khao San Road and Sanam Luang being the final destinations on the route.
Bus Stop at Suvarnabhumi Airport
S1 buses at Suvarnabhumi Airport park on the first floor of passengers terminal (Gate 7).
Main Stops on S1 Bus Route
Khao San Road
Tha Prachan and Tha Chang Piers (for taking Chao Phraya Express Boat Service)
S1 Bus Route Map
Full list of bus stops on Suvarnabhumi Airport shuttle bus S1 route with their exact locations can be found on the S1 Bus route map below. Bus stops on "Blue Line" are used when traveling on S1 Bus from Suvarnabhumi Airport to Bangkok, "Red Line" bus stops are used when taking S1 Bus to Suvarnabhumi Airport from the city.
Other Travel Options
Suvarnabhumi International Airport (BKK) is connected to Bangkok City by the train, which is known as Airport Rail Link. If you're arriving at Suvarnabhumi airport or departing from it, the easiest and cheapest way to travel from/to the airport is taking Airport Rail Link. However, you need to change to a bus, taxi or tuk-tuk if you want to reach Khao San Road from the last Airport Rail Link Station (Phaya Thai). For more detailed information check how to take Airport Rail Link from Suvarnabhumi Airport (BKK).
If using public transportation seems to be too complicated for you, book a private transfer online and the driver will be waiting for you at the airport holding a sign with your name on it. It's definitely the most comfortable way to reach the city and not to get lost in Bangkok on the first day of your trip. Private transfer from Suvarnabhumi Airport to Central Bangkok can be booked here: [Sale] Private Suvarnabhumi Airport Transfers (BKK) for Bangkok.
More useful information about facilities at the airport can be found here: Suvarnabhumi International Airport (BKK).
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If you have connecting flights at different airports in Bangkok, use free shuttle between BKK and DMK airports.
Don Mueang Airport (DMK) is served by 5 shuttle bus routes that can be found here: Airport Bus Service to and from Bangkok Don Mueang Airport (DMK).
If you are staying in Pratunam area instead of Khao San Road, check How to get from Bangkok Suvarnabhumi Airport (BKK) to Pratunam Area.
What is the best area to stay in Bangkok? The answer can be found here: Guide to Bangkok Best Areas.
Check for the best hotel deals in Bangkok below.
Check our Frequently Asked Questions about public transportation in Bangkok and ask your own question if it's not answered there yet.