Cheap Flights from Koh Samui (USM) to Udon Thani (UTH)

Frequently Asked Questions

• What are the cheapest flights from Koh Samui to Udon Thani (USM-UTH)?

  Based on Trip.com data, Bangkok Airways offers one-way fares as low as US$131 on Cheapest nonstop routes (e.g. USM to UTH on Sat, Dec 20), while Bangkok Airways offers Cheapest nonstop round-trips from US$265 departing on Thu, Jan 22 and returning on Fri, Jan 23.

• Which airlines offer direct flights from Koh Samui to Udon Thani?

  At the moment, you can catch a nonstop flight from Koh Samui to Udon Thani with the following airlines, including: Bangkok Airways 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 Koh Samui 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 Koh Samui 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.

• How can I find the best deals on flights from Koh Samui to Udon Thani?

  To find best deals on flights from Koh Samui to Udon Thani, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Dec 20, with one-way flights priced at just US$131.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Bangkok Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Udon Thani travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Koh Samui (USM) to Udon Thani (UTH) the cheapest?

  The cheapest months to fly from Koh Samui to Udon Thani is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Koh Samui to Udon Thani on?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Koh Samui to Udon Thani on December 20, 2025 with Bangkok Airways, with prices starting at US$130.

• Which airports can I fly to for Udon Thani from Koh Samui?

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

• Is there any time difference between Koh Samui and Udon Thani?

  The time difference between Udon Thani and Koh Samui is 0h.

• How do I change or cancel my ticket from Koh Samui 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.