Can I use a bus ticket as proof of onward travel when entering Thailand on a visa exempt entry?

When entering Thailand on a 30-day visa exempt entry, you can use a bus ticket as proof of onward travel; however, it may be more challenging to find a suitable bus route that crosses the border. Many travelers recommend purchasing a cheap one-way airline ticket for this purpose, as it's easier to obtain and can be discarded if necessary. Additionally, your airline may have specific requirements regarding onward travel proof, so it's advisable to confirm their policies beforehand.