Cheap Flights from Chiang Rai to Udon Thani

FAQ

• Which airlines offer direct flights from Chiang Rai to Udon Thani?

  At the moment, you can catch a nonstop flight from Chiang Rai to Udon Thani with the following airlines, including: Thai AirAsia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Chiang Rai to Udon Thani?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chiang Rai to Udon Thani is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• When are flight tickets from Chiang Rai (CEI) to Udon Thani (UTH) the cheapest?

  The cheapest months to fly from Chiang Rai to Udon Thani is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chiang Rai to Udon Thani on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Chiang Rai to Udon Thani on October 27, 2025 with Thai Vietjet Air, with prices starting at NZD 85.

• Which airports can I fly to for Udon Thani from Chiang Rai?

  You can land at any one of the following hubs in Udon Thani, with Chiang Rai International Airport to Udon Thani International Airport (CEI-UTH) is by far the most common option on this route: Udon Thani International Airport (UTH).

• Is there any time difference between Chiang Rai and Udon Thani?

  The time difference between Udon Thani and Chiang Rai is 0h.

• How do I change or cancel my ticket from Chiang Rai to Udon Thani?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.