Thai Airways Fare Classes: Royal Orchid Plus Miles
Type the booking class letter from your Thai Airways ticket to see its cabin and the Royal Orchid Plus miles it earns, as published by Thai Airways.
Thai Airways fare classes
Each Thai Airways booking class earns a percentage of the miles flown in Royal Orchid Plus miles on THAI-operated flights, with a minimum of 500 miles per flight in the classes that earn. The miles flown times the class percentage, without the tier bonus, are your Qualifying Miles toward the tiers.
| Fare | Cabin | Miles earned | Minimum per flight |
|---|---|---|---|
| Royal First | |||
| F | Royal First | 250% | 500 miles |
| P | Royal First | 200% | 500 miles |
| Royal Silk (business) | |||
| C | Royal Silk | 150% | 500 miles |
| D | Royal Silk | 150% | 500 miles |
| J | Royal Silk | 125% | 500 miles |
| Z | Royal SilkAlso Premium Economy Plus, on THAI A330-300 flights from and to Bangkok and a few cities, at the same 125%. | 125% | 500 miles |
| Premium Economy | |||
| A | Premium EconomyFor flights flown on or after 1 July 2026. Before that A was a First class earning 200%. | 110% | 500 miles |
| U | Premium Economy | 110% | 500 miles |
| Economy | |||
| Y | Economy | 110% | 500 miles |
| B | Economy | 110% | 500 miles |
| M | Economy | 110% | 500 miles |
| H | Economy | 100% | 500 miles |
| Q | Economy | 100% | 500 miles |
| T | EconomyThai Airways' table gives 100%; one line of its rules text says 75%. | 100% | 500 miles |
| K | Economy | 75% | 500 miles |
| S | Economy | 75% | 500 miles |
| V | EconomyThai Airways' table and rules page give 75%; one line of its text says 25%. | 75% | 500 miles |
| G | Economy | 50% | 500 miles |
| W | Economy | 25% | 500 miles |
| L | Economy | No miles | None |
| Not eligible for miles | |||
| O | Not eligible | No miles | None |
| I | Not eligible | No miles | None |
| X | Not eligible | No miles | None |
| E | Not eligible | No miles | None |
| N | Not eligible | No miles | None |
| R | Not eligible | No miles | None |
The percentage is of the actual miles flown on THAI-operated flights. Thai Airways says discounted or promotional fares with a designated booking class or route can earn fewer miles or none, that miles may not be credited on joint-agreement or codeshare flights, and that charter flights, award tickets (generally booked in O, I, X or E) and industry-discount tickets earn nothing. On an upgrade, including a paid upgrade at the airport, miles follow the fare originally paid. Thai Airways does not list which booking classes belong to its fare brands, so this chart shows the classes only.
Calculate what this flight earnsMiles and Qualifying Miles
| Cabin | Booking classes | Share of the miles flown |
|---|---|---|
| Royal First | F | 250% |
| Royal First | P | 200% |
| Royal Silk | C, D | 150% |
| Royal Silk | J, Z | 125% |
| Premium Economy | A, U | 110% |
| Economy | Y, B, M | 110% |
| Economy | H, Q, T | 100% |
| Economy | K, S, V | 75% |
| Economy | G | 50% |
| Economy | W | 25% |
| Economy | L | No miles |
| Not eligible | O, I, X, E, N, R | No miles |
- Miles on a THAI flight are the distance flown times the percentage, with a minimum of 500 miles per flight. Thai Airways measures distance between the origin and destination as set by THAI or Star Alliance airlines; a change of flight number is credited per flight, while a continuing flight number (even with an aircraft change) is credited from the origin to the final destination.
- Tier status bonus: Silver 5%, Gold 10% and Platinum 20% extra on international flights operated by THAI (flight numbers with 3 digits). The calculator explains this bonus but does not add it, because Thai Airways describes it both as a share of the miles flown and of its standard mileage accumulation.
- Qualifying Miles: the actual miles flown on THAI and Star Alliance flights plus the class bonus. Tier bonus, promotional and other partner miles are excluded. Thai Airways does not say whether the 500-mile minimum counts, so the calculator leaves it out of Qualifying Miles. Platinum counts only miles on THAI Royal First or Royal Silk.
- First flight bonus: 2,500 bonus miles on your first THAI flight.
- Distances: Thai Airways publishes miles from Bangkok only, for example 5,928 to London, 4,679 to Sydney, 2,869 to Tokyo, 1,049 to Hong Kong, 889 to Singapore and 365 to Chiang Mai.
- Partner flights: miles on Star Alliance airlines follow the paid booking class on the operating airline; Thai Airways publishes no partner table on its earning page, and codeshare flights bought from the marketing carrier may not earn.
- Validity: miles are valid for 3 years; miles earned in each quarter expire at the end of the same quarter 3 years later.
Silver, Gold and Platinum
| Tier | To reach it | To keep it | Tier bonus |
|---|---|---|---|
| Silver | 10,000 Qualifying Miles in 12 months, or 15,000 in 24 months | 10,000 in a 12-month period of the status, or 15,000 in the 24 months before it expires | 5% |
| Gold | 50,000 in 12 months, or 80,000 in 24 months, or 40 international THAI sectors in 12 months | 50,000 in a 12-month period, 40 international sectors, or 80,000 in the 24 months before it expires | 10% |
| Platinum | 80,000 miles on THAI Royal First or Royal Silk, in each of 2 consecutive rolling 12-month periods | 80,000 on THAI Royal Silk or Royal First in each of the 2 consecutive 12-month periods before it expires | 20% |
- Flights in classes T, K, S, G, V, W and L do not count toward the 40 international sectors for Gold.
- Silver members get 3,000 bonus miles each time the status is reached or kept, Gold 5,000 and Platinum 10,000.
- Gold and Platinum cards carry Star Alliance Gold benefits, including Star Alliance Gold lounge access and priority check-in on eligible flights.
- Thai Airways has announced new qualification criteria that were scheduled for 5 August 2026 and then postponed; the current criteria and terms remain in force. Gold and Platinum status that expired or expires from 1 June to 31 December 2026 is extended to 30 June 2027.
Good to know
- How many miles does a Thai Airways flight earn?
- The distance flown times the percentage for the booking class, with a minimum of 500 miles per THAI flight: 250% in F, 200% in P, 150% in C and D, 125% in J and Z, 110% in A, U, Y, B and M, 100% in H, Q and T, 75% in K, S and V, 50% in G and 25% in W. Classes L, O, I, X, E, N and R earn no miles.
- Do Royal Orchid Plus members earn a tier bonus?
- Silver members get an extra 5%, Gold 10% and Platinum 20% on international flights operated by THAI (flight numbers with 3 digits). Tier bonus miles are not Qualifying Miles.
- What are Qualifying Miles?
- The actual miles flown on THAI and Star Alliance flights plus the class of service bonus. Bonus and promotional miles and other partner miles are excluded. Silver needs 10,000 in 12 months or 15,000 in 24 months, Gold 50,000 in 12 months, 80,000 in 24 months or 40 international THAI sectors in 12 months, and Platinum 80,000 on THAI Royal First or Royal Silk in each of 2 consecutive 12-month periods.
- What does booking class A earn on Thai Airways?
- For flights flown on or after 1 July 2026, A is a Premium Economy class earning 110% of the miles flown. For flights before that date it was a First class earning 200%.
- Do miles expire?
- Royal Orchid Plus miles are valid for 3 years: miles earned in each quarter expire at the end of the same quarter 3 years later.
One line of text on Thai Airways' earning page says T earns 75% and V 25%, while its table and its Mileage Accumulation Rules page give T 100% and V 75%. This chart follows the table.
Source: Thai Airways. Earn miles on THAI | Mileage accumulation rules | Royal Orchid Plus status and benefits | Program conditions | Earn miles on Star Alliance airlines | Official miles calculator
Thai Airways and Royal Orchid Plus are trademarks of Thai Airways International. This page is unofficial and not affiliated with or endorsed by Thai Airways. Information is provided for reference only and may not reflect the most current program terms.
Crediting Thai Airways flights to another program? See what they earn with United MileagePlus or Aeroplan.
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