Mileage Upgrade Award on THAI
Mileage Upgrades One way One sector	Economy Class (Y, B, M) only to Royal Silk Class	Economy Class (all other booking classes except V, W) to Royal Silk Class	Economy Class (all booking classes except V, W) to Premium Economy Class	Premium Economy Class to Royal Silk Class	Royal Silk Class to First Class
Up to 1,000 miles Between Bangkok and: Chittagong, Dhaka, Hanoi, Ho Chi Minh City, Kuala Lampur, Kunming, Penang, Phnom Penh, Singapore, Vientiane, Yangon Between : Chiang Mai-Kunming, Karachi-Muscat, Dubai-Kuwait, Taipei-Seoul,	16,000	20,000	12,000	N / A	N / A
1,000 – 2,000 miles Between Bangkok and: Bandar Seri Begawan, Bangalore, Chennai, Chengdu, Colombo, Denpasar, Guangzhou, Hong Kong, Hyderabad, Jakarta, Kolkata, Manila, Mumbai, New Delhi, Shanghai, Taipei, Xiamen Between: Hong Kong-Seoul, Phuket Taipei-Phuket, Manila-Osaka	20,000	25,000	17,000	N / A	35,000
2,000– 4,800 miles Between Bangkok and : Beijing, Brisbane, Busan, Dubai, Fukuoka, Islamabad, Karachi, Kuwait, Lahore, Melboume, Moscow, Muscat, Nagoya, Osaka, Perth, Seoul, Sydney, Tokyo	24,000	30,000	20,000	N / A	40,000
Between: Phuket-Perth,
4,801-8,000 miles Between Bangkok and: Athens, Auckland, Copenhagen, Frankfurt, Johannesburg, London, Madrid, Milan, Munich, Paris, Rome, Stockholm, Zurich	32,000	40,000	25,000	28,000	50,000
8,001-12,500 miles Between Bangkok and: Los Angeles, New York	40,000	50,000	30,000	35,000	60,000

Upgrades subject to aircraft configuration.

Between Bangkok and Copenhagen or Stockholm mileage upgrades are from Economy class to Premium Economy Class and from Premium Economy Class to Royal Silk Class only