Mine took 13 days, but I think they may have been having issues with their system when I applied in November. Should leave plenty of time to be safe :)
The Ministry of Foreign Affairs website and the Thai airways website says you need either proof of vaccination or a PCR test + $50,000 covid insurance, but Trunk says you don't need anything, you only need to follow the airline and destination countries requirements.
I contacted Thai airways to see if they can clarify, but have not received a response.
×Get your flights (You're required to have proof onward travel, so be careful if you only have a one way ticket)
×Book a Test and Go hotel that includes airport transfer, Day 1 PCR and Day 5 ATK tests ( I was able to book mine on Agoda, but you can also find a list here:
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×Get insurance with $20,000 minimum covid cover for the duration of your stay
×Register all that information + your vaccination certificate with Thailand pass.
Also, if your holiday is less than 30 days you can arrive by visa exemption if you're a Netherlands passport holder so you don't have to worry about applying for anything in that regard.
If you apply for the visa beforehand make sure you apply with plenty of time to spare to avoid the stress I went through lol. I applied 2 weeks before my flight and almost didnt get it in time.