Spending the night at the airport
Chiang Mai Airport is not one of the most comfortable for spending the night, as resting options are limited and most commercial establishments close in the late afternoon/evening. If you have a very early flight or a long layover, it is advisable to bring a sleeping bag or blanket, eye mask, and earplugs. Also keep in mind that the air conditioning can be intense during the night.
Where to rest: The best spots are the armrest-free benches near the main entrance (landside area), where the lights are somewhat dimmer. In the domestic departures area there are also some padded seats. The VIP lounges offer greater comfort, but all close at night. If the budget allows, hotels within less than 1 km from the airport are the most practical option for a long layover; some offer free shuttle service.
Luggage: The AIRPORTELs luggage storage service operates on the first floor of both terminals from 7:00 am to midnight (150 baht/day per standard piece). Keep in mind that it does not operate during the early morning, so if you arrive after midnight you will have to wait until it reopens or keep your luggage with you.
Food and drinks: Commercial establishments generally close between 9:00 and 10:00 pm. Unlike Bangkok or Phuket, CNX does not have 24-hour dining options, so it is advisable to stock up on water and some food before they close. There are beverage and snack vending machines available during the night.
Wi-Fi: Free, with 60-minute renewable sessions (network @AirportTrueFreeWiFi).