Will I encounter issues at the airport flying to Thailand with my children on one-way tickets?

You effectively have 2 options:

1) have an actual visa (SETV, METV) - the airlines won't bother you about exit tickets.

2) have an exit ticket to meet the requirements for no-visa entry. The airlines will be the problem at check-in time because they are responsible for your repatriation costs if there is a problem at entry.

Get a cheap, disposable ticket to anywhere outside of Thailand. This will satisfy the airline and immigration requirement even if you never plan to use it.

There are lots of options and the flight does not have to be from CNX.

Look for cheap flights on the low cost carriers from DMK to anywhere close: KUL, SIN, MNL, HKG, etc.

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If the baby is under 2 she won't need an exit ticket.

Everyone else will.

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IF you can show that you will travel overland by bus to an adjoining country a bus or train itinerary / tickets will also suffice (ie: BKK to Malaysia) but may cost more than a cheap air ticket.

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Depending on the carrier you may also be able to say that you will travel overland and be allowed to sign a waiver absolving the airline of the costs (you bear the responsibility and costs) if there is a problem at entry.

The ONLY way you're really going to know is to contact your airline BEFORE you show up at the check in counter and see what their actual policy is.

With the high number of cheap frill air fares and the inability to change dates more and more travelers are opting for a one way ticket. One tickets also allow travelers to travel overland to other onward destinations

You will have far more problems with the airline checking in without a valid visa in your passport and no proof of onward travel.

Once you board the plane you won't have any issues when you land in thailand with passport control stamping into the country.

There is no such thing as a 30 day visa :o If you show up here without having bought a visa from a thai consulate before hand and are stamped in for 30 days you came into the country on a 30 day visa exempt entry.

I just asked this question this morning and got lots of helpful answers. Search for my name in the group to see them.

did you BUY tourist visas from the thai consulate in your country BEFORE you're coming here?