A4 Bus Bangkok is a shuttle bus service connecting Don Mueang International Airport (DMK) with the historical center of Bangkok City. The Don Muang Airport Bus A4 is running from DMK Airport to Khao San Road and Sanam Luang. To make your airport transfer easier, you can take this bus from Khao San Road to Don Muang Airport directly.
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Don Muang Airport A4 Bus
The A4 bus route is the best way to go from Don Muang Airport to many areas of Bangkok City, such as Khao San Road and Sanam Luang, without changing buses or taking another kind of Bangkok public transportation.
All buses running on the Don Muang A4 bus route are new blue air-conditioned buses.
If you are traveling with large luggage or just don't like using public transportation in foreign countries, enjoy a hassle-free trip to the city by booking a private transfer here: Private Don Mueang Airport (DMK) Transfers.
Bangkok A4 Bus Route
The A4 bus route spans from Don Muang Airport to the historical center of Bangkok, with Khao San Road and Sanam Luang being the final destinations on the route.
Bus Stop at Don Muang Airport
Previously, all Don Muang Airport buses were parking on the first floor of Terminal 1 (Exit No. 6). Starting from 1 March 2025, the pick-up point was changed. Now you can only board DMK buses at Service Hall next to the International Passenger Terminal (Terminal 1), on the north side of the terminal building (parking lots 1-2).
Main Stops on A4 Bus Route
The bus route passes these important bus stops:
- Yommarat
- Lan Luang
- Phanfa Bridge (for boarding the Khlong Saen Saep Boat)
- Democracy Monument
- Khao San Road
- Sanam Luang (for Bangkok Old Town)
- Tha Prachan Pier and Tha Chang Pier (for taking the Chao Phraya Express Boat Service)
A4 Bus Route Map
A full list of bus stops on the Don Muang Airport shuttle bus A4 route with their exact locations can be found on the A4 bus route map below. "Inbound" bus stops are used when traveling on the A4 bus from Don Muang Airport to Bangkok; "outbound" bus stops are used when taking the A4 bus to Don Muang Airport from the city.
Bangkok A4 Bus Fare
The current Bangkok A4 bus fare is 50 THB per person.
The ticket can be bought on board. The bus fare can be paid in cash or by Visa or MasterCard, as the new payment method was recently implemented.
Bangkok A4 Bus Timetable
The Bangkok A4 bus service operates daily, from 06:10 to 23:00.
The expected frequency of the A4 bus is every 30-40 minutes.
Pay attention that A4 bus departures from 21:00 are less frequent than during the daytime. According to this timetable found at the airport, the bus A4 schedule after 21:00 was the following: 21:10, 22:10, and 23:00 (last bus).
The journey to the final destination of this Don Muang Airport bus route usually takes about 1 hour, but it can take more if traffic conditions are really harsh.
Other Don Muang Airport Bus Routes
There are 3 more bus routes starting at Don Mueang International Airport (DMK):
The most important information about all Don Muang Airport bus routes can be found here: Bangkok Don Mueang Airport Bus.
For more information about Bangkok public bus service, check here: Bangkok Bus.
Tips
To simplify things for traveling on Bangkok public transportation, such as the BTS SkyTrain and MRT Yellow Line or Pink Line, consider getting a Bangkok Rabbit Card, as with it you won't need to queue up and buy separate tickets for each ride. Even if this card can't be used on the Don Mueang Airport bus, it's still worth it in most cases, as BTS lines are used most frequently for exploring the city.
Stay connected during your trip on the airport bus. If your mobile phone is eSIM compatible, you can get eSIM Thailand by instant email delivery and use it right after landing in Bangkok. Otherwise, book a discounted Thailand SIM card and pick it up at the airport.
When you have connecting flights at different airports in Bangkok, you can use a free shuttle bus between BKK and DMK airports to save time and money.
In case you are still wondering what the best area is to stay in Bangkok, the answer can be found in the guide to Bangkok's best areas. And yes, Khao San Road is one of them!
