Yes, for traveling from some countries, it is not necessary to fly with Thai Airways.
And for travel from certain countries Can use the existing tickets of other airlines. To enter free quarantine as well But must contact the embassy To claim And must be the same flight ticket announced by the embassy, such as Norway, Germany
I've traveled to Canada. And going back again But because of COVID So i delay the trip Finally, my tourist visa expired in October 2020, so I applied again. But visa application results have not been issued until now So my fiance Therefore applying for a visa to come to Thailand