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Answered3 months ago

Is it mandatory to provide a departure flight on the THIM form for immigration in Thailand?

THIM and TDAC notice
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Anonymous *************
asked Aug 9, 2026
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THIM departure flight mandatory?

TDAC we could leave this blank.

THIM makes us check a reason why we can't provide but I fear checking "other" would trigger scrutiny at immigration.

FayI, I've entered BKK over 12x with DTV and TDAC departure left blank, never been asked to show an onward flight.
Answer summary
The discussion revolves around the THIM form and the necessity of providing a departure flight for immigration in Thailand. Multiple users share their experiences, indicating that leaving the departure flight blank or choosing 'Other' on the form can be a viable option without facing issues at immigration. However, some express concerns about potential scrutiny. It's generally suggested that travelers plan to extend their stay if they are on long-term visas.
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Chris *****
Chris *****
Other (Please specify) -> DTV Visa
Pee ******
Pee ******
The last time at immigration just a month ago, the officer told me that in the THIM I need to leave the departure date blank and check the 2nd option of long term visa the next time. That was my experience.
Ivan ************
Ivan ************
Pee Tong was this with a DTV? I'm wondering if this is considered a "long term visa" in this context
Pee ******
Pee ******
@Ivan ***********
No, I am on a retirement visa. According to AI, in your case of the DTV visa it guided me to this YouTube channel which says to select you will extend your visa while in Thailand. You can also check AI yourself.

It also says you can leave it blank as it is optional.

Sorry, this is the help I can provide for your case.

************************************************
Mark *********
Mark *********
Right in front of you, plan to extend
Denis **********
Denis **********
I've decided to try THIM last time and checked 2nd option (long-term visa) here for me and my wife. All went flawless, no question from lady on passport control.
Dom ********
Dom ********
Just say you plan to extend
Brandon ************
Brandon ************
If you're actually worried then just fill out the TDAC. But there's only one TDAC system so they're not going to see it regardless.
Steve *******
Steve *******
Pick Other and explain your reason.

You're supposed to tell the truth, the potential scrutiny isn't up to you.
Elías ********
Elías ********
Nope

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