Electronic visa-on-arrival services are now operative at three major airports and will soon be available at two others, according to the immigration bureau.
Acting chief Surachate Hakparn said on Thursday booths had been opened at Suvarnabhumi, Don Mueang and Phuket airports for visitors who applied in advance for e-visas via the immigration police online service.
The same facility would be ready at Chiang Mai airport next Monday and at Krabi airport in the near future, he said.
Visitors could use the "E-VOA" service at www.evisathailand.com from 1-30 days before arrival and pass through the special lanes in about a minute, instead of waiting in queues an hour or more.
They could fill in the forms and pay visa fees in advance. The service is available for visitors from 21 countries, Pol Maj Gen Surachate said.