AI seems to think that the priority fast track lane is still available for the over 70's, but first hand information is of course best.
Yes, the priority fast track lane for passengers over 70 at Bangkok's Suvarnabhumi Airport is still available in July 2025. This service, along with other priority groups like business class passengers, continues to be offered at the airport's priority lane.
Details:
Priority Lane:
Instead of a separate fast track lane, passengers over 70 are directed to the Priority lane, which is also used by business class and other eligible travelers.
Location:
This Priority lane is situated to the right of the regular immigration lanes, often indicated by signs like "Thai Passport & Priority".
Eligibility:
Passengers over 70, along with business class, first class, disabled, and pregnant passengers, are eligible for this service.