Travel Info

We are excited to welcome you to the 20th Siam Physics Congress (SPC2025), held from 11-13 June 2025 at the Pullman Khon Kaen Raja Orchid, Khon Kaen, Thailand. Below is detailed travel information to help you plan your journey to Khon Kaen.

By Air

Khon Kaen is easily accessible by air from major cities within Thailand.

  • Khon Kaen Airport (KKC) is the main airport serving the city, with daily flights from Bangkok and other regional airports.
  • From Bangkok (Suvarnabhumi or Don Mueang Airports):
  • Thai AirAsia, Nok Air, and Thai Lion Air offer direct flights from Don Mueang International Airport (DMK) to Khon Kaen, with a flight time of approximately 1 hour.
  • Thai Smile operates direct flights from Suvarnabhumi Airport (BKK) to Khon Kaen.
  • Other Domestic Routes: Khon Kaen also connects with cities like Chiang Mai, Hat Yai, and Phuket via domestic flights.
  • Upon arrival at Khon Kaen Airport, you can take a taxi or use a ride-hailing service (Grab) to reach the Pullman Khon Kaen Raja Orchid, which is about a 20-minute drive from the airport.

By Train

Khon Kaen is well connected to the Thai railway network with daily train services from Bangkok.

  • Bangkok to Khon Kaen:
  • Trains depart from Bangkok’s Hua Lamphong Station and Bang Sue Grand Station. The journey takes approximately 7-8 hours, depending on the train service.
  • You can choose between express trains, rapid trains, and sleeper trains for overnight travel.
  • Once you arrive at Khon Kaen Railway Station, the conference venue is a 10-minute drive by taxi or Grab.

By Bus

Khon Kaen is connected to several cities by an extensive bus network, with frequent services from Bangkok and other provinces.

  • Bangkok to Khon Kaen:
  • Buses leave from Bangkok’s Mo Chit Bus Terminal and take approximately 6-7 hours to reach Khon Kaen.
  • Several bus companies operate this route, including Nakhonchai Air, The Transport Company, and Sombat Tour. You can choose between VIP, first-class, and standard buses.
  • The Khon Kaen Bus Terminal 3 is located about 15 minutes from the conference venue, accessible by taxi or Grab.

By Car

For those who prefer driving, Khon Kaen is about 450 km from Bangkok and can be reached in approximately 5-6 hours by car. We look forward to seeing you at SPC2025! If you need further assistance with your travel arrangements, please contact the organizing team at [conference email].