According to http://www.delta.com/planning_reservations/plan_flight/international_travel_information/visa_passport_information/index.jsp
National India (IN) /Destination Thailand (TH)
Visa required, except for Those traveling as a tourist can
obtain a visa on arrival, for a max. stay of 15 days provided
holding: For details, click here
- Holders of normal passports issued to nationals of India.
- Applicable only at Bangkok (BKK and DMK), Chiang Mai (CNX),
Chiang Rai (CEI), Hat Yai (HDY), Krabi (KBV), Phuket (HKT),
Samui Int'l (USM), Sukhothai Int'l (THS), Surat Thani (URT)
and Utapao (UTP) airports.
- Passport photo facilities are only available at Bangkok
Int'l Airport (BKK).
Additional Information:
- Visitors who are visa exempt are required to hold documents
for their next destination.
- Visitors over 12 years of age are required to hold
sufficient funds to cover their stay (at least THB 10,000.-
per person or THB 20,000.- per family).