Commencing 01 October 2019, a number of changes will be introduced that can reward you with more miles.

The new earning structure provides more miles in many classes of service, depending on the paid fare and introducing new tier status bonus miles.

Class of Service Miles

When flying with THAI in Royal First Class, Royal Silk Class and Economy Class on stated booking classes, more miles will be earned.

Actual miles flown plus class of service miles will continue to be Qualifying Miles that determine Royal Orchid Plus tier status.

Class of Service	Booking Class	Current Mileage Accrual	New Mileage Accrual Effective from 01 October 2019 Onwards
Royal First Class	F	150%	250%
	A, P	150%	200%
Royal Silk Class	C, D	125%	150%
	J, Z	125%	125%
Premium Economy	U	110%	110%
Economy	Y, B	100%	110%
	M, H, Q	100%	100%
	T, K, S	75%	75%
	G	50%	50%
	V, W	25%	25%

- All members continue to earn 500 minimum miles on all THAI operated flights.

- For THAI Smile flights, Platinum and Gold members earn 500 minimum miles, Silver and Basic members earn 200 minimum miles.

New Tier Status Bonus Miles

Having and aspiring to Platinum, Gold and Silver status will be even more rewarding with new Tier Status Bonus Miles earned on international THAI flights.

Tier Status	Additional Percentage of Flown Miles ( Effective from 01 October 2019 Onwards )
Platinum	20%
Gold	10%
Silver	5%

* Tier Status Bonus Miles are not Qualifying Miles that determine membership status within the Royal Orchid Plus program.

Tier Status Bonus Miles are earned according to the tier status with each flown qualifying flight. These additional miles are calculated on top of actual miles flown and any applicable class of service bonus miles. As an example, one-way travel between Bangkok and London with actual miles of 5,928 would earn the following tier status bonus miles.

Platinum (20% Tier Status Bonus Miles)	Earned Miles ( Effective from 01 October 2019 Onwards)
Royal First Class (Ex : Travel in booking class F)	14,820 miles (earn miles 250% calculated from actual miles including class of service miles) 2,964 tier status bonus miles 17,784 total earned miles
Gold (10% Tier Status Bonus Miles )	Earned Miles ( Effective from 01 October 2019 Onwards)
Royal Silk Class (Ex : Travel in booking class C)	8,892 miles (earn miles 150% calculated from actual miles including class of service miles) 889 tier status bonus miles 9,781 total earned miles
Silver (5% Tier Status Bonus Miles)	Earned Miles ( Effective from 01 October 2019 Onwards)
Economy Class (Ex: Travel in booking class Y)	6,521 miles (earn miles 110% calculated from actual miles including class of service miles) 326 tier status bonus miles 6,847 total earned miles