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Answereda year ago

Do I need to complete a TDAC before boarding my flight to Thailand?

THIM and TDAC notice
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David *********
asked Dec 5, 2025
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I was just informed that I have to have a TDAC filed before I board my first flight out of US Just a heads up for everyone it is Alaska airlines
Answer summary
The post discusses the requirement of filing a TDAC (Thailand Digital Arrival Card) before boarding the first flight to Thailand, specifically with Alaska Airlines. Comments indicate mixed experiences, with some suggesting that filing it ahead of time is more convenient to avoid long lines at immigration. It is also noted that the TDAC can be completed anytime before arriving in Thailand, even upon arrival at the airport.
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TG *********
TG *********
Yeah the lines queing up at immigration to fill out last minute TDAC is huge. Best to do it right before you depart. Make sure you use the official Thai government website and not one of the pay scam sites.

Official Thailand Digital Arrival Card (TDAC) – No Fees Required
**************************************
Dennis **********
Dennis **********
Difers from airline to airline, 3 trips this year 1 airline asked to see it other 2 didn't
David *********
David *********
OP
When I flew back in the spring it never came up until I got to immigration in Bangkok
Pete ********
Pete ********
@Dennis *********
Which airline?
Dennis **********
Dennis **********
@Pete *******
EVA asked to see it , Qantas and China Southern didn't
Pete ********
Pete ********
@Dennis *********
Thanks, I'm flying EVA
Kim *********
Kim *********
@Dennis *********
stupid to ask for that since it can be filled out when he arrives.
Dennis **********
Dennis **********
@Kim ********
they might be afraid of it being rejected in Bangkok and then having to fly them home , who knows what there reasoning is
Kim *********
Kim *********
@Dennis *********
hmm - maybe
Tom ********
Tom ********
It's just the new version of the old paper arrival card, nothing to stress about, fill it in up to 72 hours before you fly.
Greg ******
Greg ******
Airlines should not be enforcing entry BS.
Nga ****
Nga ****
@Greg *****
if immigration denies you entry, the airline is responsible for flying you back. So why wouldn’t they enforce the so called BS entry policy?
Greg ******
Greg ******
The airline should not be responsible for entry requirements.
Milan ********
Milan ********
The government makes them pay for your deportation, so they have a strong interest in ensuring you have the right paperwork before you board.
Greg ******
Greg ******
The government should not hold an airline responsible for the actions of an individual.
Michael *******
Michael *******
They are trying to be helpful to avoid snarl ups in arrival halls -just like the days when hosties handed them out before flight landed called customer service I think😉
Tommi *******
Tommi *******
@Greg *****
Agree but they sure are.. Cebu Pacific denied me due to a minor discrepancy on my Visa to Vietnam.
Jo **********
Jo **********
@Tommi ******
it really depends on the airline. In 20 years coming to Thailand many times per year never been asked by Singapore Airlines or KLM.
Jo **********
Jo **********
@Greg *****
I completely agree with you. especially an entree card
Charmae *******
Charmae *******
And ???
Roger ********
Roger ********
Alaska Airl8nes was your first flight and they demanded proof that the TDAC was completed?

Just very odd since Alaska Airlines doesn't have a flight to Bangkok and the rules are that it can be done anytime before immigration in Thailand so it can even be done at the airport, or at least BKK, on arrival.
John *********
John *********
@Roger *******
but he is David English 🤦🏻‍♀️😹
Christopher **********
Christopher **********
If this was the original flight on a single ticket, Alaska might be the only time a person would check in. In this case, Alaska might be the one to ensure immigration will be possible. I have had United check things (eg COVID vaccine and insurance when it was required) even though the trip was United then ANA after Tokyo.
Jack ****************
Jack ****************
@Roger *******
yeah, last time I came back it wasn't on my radar (avoid news mostly) and had to do it during my bkk transfer. 5 or 6 kiosks and only me. It's really for tourists- if you live in Thailand the forms are broken. Or were anyway.
Neil ********
Neil ********
Takes 5 minutes at home ( 72 hour window) and the queue at BKK hours to get access and you are tired.
John ***********
John ***********
@Neil *******
Not something I would want to do on arrival.
Jo **********
Jo **********
@John **********
no but last time I entered I forgot to do it. So I did it when we taxied to the gate at Bangkok airport!
Jo **********
Jo **********
@John **********
I live in Thailand so have a Thai phone sim
John ***********
John ***********
@Jo *********
The advantage of having an international or eSIM so you have data when you land.
Colin **********
Colin **********
***********************************************************************************************************************************************************************************************************
Trapper *******
Trapper *******
You can do it after you land as well... A lot more convenient to do it 3 days prior though 😉
Todd *********
Todd *********
@Trapper ******
not if they don’t let you board the aircraft
Sean **********
Sean **********
@Trapper ******
especially inconvenient if one does not have access to Wi-Fi or cell data 😜
Jeff *************
Jeff *************
@Sean *********
airport has free WiFi when you get there it can be done, but smarter to do it before you leave from the US
Trapper *******
Trapper *******
@Sean *********
True true...

Thankfully they have kiosks for those folks 😜
IndigoG********
IndigoG********
Nothing new about that...
19
Kim *********
Kim *********
IndigoGrape5836 it certainly is new - and incorrect. Can be done when arrived.
Graham ******
Graham ******
@Kim ********
why wait?
Kim *********
Kim *********
@Graham *****
no reason at all and that was not what I was saying or implying. I was commenting on a wrong answer that said "nothing new about that" to the information that the TDAC had to be done before travelling.
Graham ******
Graham ******
@Sean *********
their plane their rules
Sean **********
Sean **********
@Graham *****
no reason to wait. But for me, it should also not be a requirement to get on a plane.
Sean **********
Sean **********
IndigoGrape5836 actually, Alaska Airlines asking would be classed as new in my book.
Graham ******
Graham ******
@Sean *********
My last two flights to Thailand I was asked at check in if I had completed the TDAC
Sean **********
Sean **********
@Graham *****
2025 flights from the US, Japan, Philippines and Vietnam. Not one asked.

I did of course have it done once it was a requirement because I don’t wait last minute unless I forget.

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