I am a British Citizen and currently living in the UK and planning to return back to Thailand early May to live. I am married to a Thai national and will be applying for a single entry O Type visa based on marriage. 

 

My question is, do I have to book a return air ticket or can I just book a single ticket to Thailand?

 

Thanks in advance. 

I've done the same, single was fine.

 

I've entered Thailand dozens of times on tourist visas and visa exeptions, and now on my non-O based on marriage, never been asked for a return ticket, only once asked to show the 20k in cash.

Edited February 12, 20197 yr by pr9spk

No you don't need an onward flight.

Edited February 12, 20197 yr by elviajero

As you are entering with a visa an onward flight is not mandated. Expect to be queried at check-inn unless the agent has the experience to search for the visa in your passport. 

Thanks for the replies. Appreciated.