Thailand Tightens Airport Security Amid Cambodia Border Tensions – Essential Travel Tips to Stay Safe, Avoid Delays, and Explore Alternative Routes for Smooth Entry in 2025

Published on December 16, 2025

As tensions escalate along the Thailand–Cambodia border, Thailand’s immigration authorities have implemented tighter airport security measures to ensure that only legitimate travellers can enter the country. These enhanced protocols come in response to the border clashes and security concerns related to the ongoing military conflict between Thai and Cambodian forces.

In a safety alert issued by Thai authorities, travellers heading to Thailand are advised to expect longer immigration checks and more rigorous screening at major international airports, particularly Suvarnabhumi Airport and Don Mueang International Airport in Bangkok. The measures primarily affect visa-exempt travellers from Cambodia and other neighbouring regions, with additional focus on those suspected of links to military or paramilitary groups.

How Airport Security Measures Will Affect Travel to Thailand

Thailand has confirmed that these heightened security measures are being implemented not only at the border but also in key international airports. With concerns growing over the potential spillover of conflict, the Thai government has tightened controls on visa-free arrivals and transit passengers. This is primarily aimed at preventing unauthorised or suspicious individuals from entering the country during a period of heightened national security concerns.

While tourists are generally unaffected, certain groups, such as Cambodian nationals and individuals from volatile regions, may experience delays or denial of entry if they fail to meet stricter visa criteria. Immigration officials have already denied entry to multiple individuals under the new regulations as part of an effort to ensure safety during this sensitive time.

Travel Tips for Staying Safe Amid Heightened Security

If you’re planning to travel to Thailand during this period of increased border security, it’s important to stay prepared and informed. Here are essential travel tips to ensure a smooth entry:

1. Verify Your Visa and Entry Requirements Before Travelling

While most tourists are not directly impacted, travellers arriving from Cambodia or other countries near the Thai border should be aware of stricter entry requirements. Thai immigration authorities have stated that those seeking to enter Thailand via visa‑exemption must present additional documentation to prove the purpose of their visit. If you’re uncertain about your visa status or need additional documentation, contact the nearest Thai embassy or consulate before booking flights.

2. Expect Longer Wait Times at Airports

With heightened screening, expect longer processing times at airport immigration. Arrive at least three hours early for international flights and prepare for additional questioning or documentation requests. Be sure to have your passport, boarding pass, and any supporting documents (such as hotel reservations or travel insurance) ready for inspection.

3. Stay Updated on Government Travel Alerts

Keep an eye on official government advisories for real-time updates on any changes to entry rules. The Thai government and the Department of Foreign Affairs in your home country will provide crucial information regarding travel restrictions, border conditions, or any shifts in security measures.

You can access real-time updates on travel advisories and entry regulations from trusted sources like the Thai Ministry of Foreign Affairs and immigration departments. Regularly check these sites to stay informed about any last-minute changes.

4. Have Alternative Travel Routes and Options in Case of Delays

For those who may face issues entering Thailand due to stricter airport security, alternative travel routes should be considered. While Bangkok is a major gateway, Chiang Mai, Phuket, and other regional airports offer entry points with fewer delays. Look for connecting flights through Singapore, Kuala Lumpur, or Hong Kong, which may provide more lenient transit regulations.

5. Be Prepared for Random Spot Checks

Be aware that spot checks might also occur on domestic flights or buses, especially for foreign nationals. Immigration officers have been conducting checks on all inbound and outbound travel to ensure that travellers do not bypass the new security protocols.

What to Do if You’re Denied Entry or Face Problems at Immigration

In rare cases, a traveller might be denied entry to Thailand despite having the correct documentation. If this happens:

• Contact your embassy or consulate immediately for assistance. Most governments have teams available to assist citizens with entry issues.
• Be calm and cooperative with Thai immigration authorities. The process may be lengthy, but remaining respectful and patient can help resolve the situation more efficiently.
• If you’re denied entry, you may be allowed to stay at the airport for further processing or be sent back to your country of origin. Make sure to keep your contact information on hand for emergency purposes.

Why Is Thailand Tightening Security?

The heightened airport security is directly tied to the rising tensions between Thailand and Cambodia over disputes at their border. Thailand has witnessed border skirmishes in recent weeks, and the government is taking steps to prevent any potential spillover into the country.

These tensions have led to a greater focus on internal security, with immigration authorities ramping up checks on anyone entering from the Cambodian border. With national security a priority, Thailand has opted for these security measures to prevent any unauthorised infiltration that might disrupt the peace and safety of citizens and travellers alike.

Despite these measures, Thailand remains open for tourism. The government assures visitors that legitimate tourists with valid documents will experience minimal disruption, though it’s crucial to prepare in advance for potential delays.

Alternative Routes and Border Options for Cambodian Nationals

Cambodian nationals, in particular, are encouraged to obtain a proper visa through an embassy or consulate before travelling to Thailand. The Thai government is recommending that Cambodian visitors avoid attempting to enter via visa‑exemption if possible, as additional screening and restrictions may apply.

For travellers still hoping to visit Thailand while avoiding border conflicts, consider alternative entry points like Phuket or Chiang Mai via indirect flights from regional cities in Southeast Asia, such as Ho Chi Minh City or Vientiane.

Stay Safe and Prepared When Travelling to Thailand

As Thailand’s border tensions with Cambodia persist, travel security is understandably tight. While the additional airport security measures may seem inconvenient, they are necessary to ensure the safety and smooth entry for all visitors. By following the advice from government authorities, ensuring your documents are in order, and staying updated on real-time alerts, you can avoid unnecessary delays and travel disruptions.

Thailand’s airports remain operational, and the country continues to welcome legitimate tourists. Whether you’re heading to the bustling streets of Bangkok, the stunning beaches of Phuket, or the cultural wonders of Chiang Mai, staying informed and prepared will ensure a safe and smooth journey during this period of heightened security.