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Flights from Ubon Ratchathani to Koh Samui

Find the cheapest flights from Ubon Ratchathani to Koh Samui within the next three months. Book one-way flights from IDR 1,778,183 or return tickets from IDR 4,673,339.

      • UBP 20:45
        10h 25m
        1 stop
        USM 07:10
        Ubon Ratchathani - Koh Samui | Mon, Jan 12 | Thai AirAsia
        USM 06:45
        9h 45m
        1 stop
        UBP 16:30
        Koh Samui - Ubon Ratchathani | Mon, Jan 19 | Bangkok Airways
        IDR 4,673,339 IDR 7,406,703
        37% OFF
        37% OFF
        IDR 7,406,703 IDR 4,673,339
      • UBP 09:20
        21h 50m
        1 stop
        USM 07:10
        Ubon Ratchathani - Koh Samui | Mon, Jan 12 | Thai Lion Air
        USM 06:45
        9h 10m
        1 stop
        UBP 15:55
        Koh Samui - Ubon Ratchathani | Mon, Jan 19 | Bangkok Airways
        IDR 4,807,943 IDR 7,406,703
        35% OFF
        35% OFF
        IDR 7,406,703 IDR 4,807,943
      • UBP 10:10
        11h 10m
        1 stop
        USM 21:20
        Ubon Ratchathani - Koh Samui | Thu, Dec 11 | Thai AirAsia
        USM 07:55
        12h 30m
        1 stop
        UBP 20:25
        Koh Samui - Ubon Ratchathani | Sun, Dec 14 | Bangkok Airways
        IDR 5,164,524 IDR 7,406,703
        30% OFF
        30% OFF
        IDR 7,406,703 IDR 5,164,524
      • UBP 08:40
        22h 30m
        1 stop
        USM 07:10
        Ubon Ratchathani - Koh Samui | Mon, Jan 12 | Thai Airways
        USM 06:45
        10h 40m
        1 stop
        UBP 17:25
        Koh Samui - Ubon Ratchathani | Mon, Jan 19 | Bangkok Airways
        IDR 5,303,850
        28% OFF
        IDR 7,406,703 IDR 5,303,850
      • UBP 09:20
        12h
        1 stop
        USM 21:20
        Ubon Ratchathani - Koh Samui | Thu, Dec 11 | Thai Lion Air
        USM 07:15
        8h 40m
        1 stop
        UBP 15:55
        Koh Samui - Ubon Ratchathani | Sun, Dec 14 | Bangkok Airways
        IDR 5,393,586
        27% OFF
        IDR 7,406,703 IDR 5,393,586
      • UBP 21:30
        14h 15m
        1 stop
        USM 11:45
        Ubon Ratchathani - Koh Samui | Thu, Jan 15 | Nokair Airline
        USM 06:45
        8h 20m
        1 stop
        UBP 15:05
        Koh Samui - Ubon Ratchathani | Thu, Jan 22 | Bangkok Airways
        IDR 5,403,032
        27% OFF
        IDR 7,406,703 IDR 5,403,032
      • UBP 12:45
        18h 25m
        1 stop
        USM 07:10
        Ubon Ratchathani - Koh Samui | Mon, Jan 12 | Thai Vietjet Air
        USM 06:45
        9h
        1 stop
        UBP 15:45
        Koh Samui - Ubon Ratchathani | Mon, Jan 19 | Bangkok Airways
        IDR 5,426,646
        27% OFF
        IDR 7,406,703 IDR 5,426,646
      • UBP 20:45
        15h
        1 stop
        USM 11:45
        Ubon Ratchathani - Koh Samui | Thu, Jan 15 | Thai AirAsia
        USM 06:45
        13h 30m
        1 stop
        UBP 20:15
        Koh Samui - Ubon Ratchathani | Thu, Jan 22 | Bangkok Airways
        IDR 5,462,068
        26% OFF
        IDR 7,406,703 IDR 5,462,068
      • UBP 16:35
        19h 10m
        1 stop
        USM 11:45
        Ubon Ratchathani - Koh Samui | Thu, Jan 15 | Thai Lion Air
        USM 06:45
        9h 10m
        1 stop
        UBP 15:55
        Koh Samui - Ubon Ratchathani | Thu, Jan 22 | Bangkok Airways
        IDR 5,480,960
        26% OFF
        IDR 7,406,703 IDR 5,480,960
      • UBP 16:25
        19h 20m
        1 stop
        USM 11:45
        Ubon Ratchathani - Koh Samui | Thu, Jan 15 | Thai Vietjet Air
        USM 06:45
        9h
        1 stop
        UBP 15:45
        Koh Samui - Ubon Ratchathani | Thu, Jan 22 | Bangkok Airways
        IDR 5,480,960
        26% OFF
        IDR 7,406,703 IDR 5,480,960
      • UBP 13:00
        17h 25m
        1 stop
        USM Invalid Date
        Ubon Ratchathani - Koh Samui | Wed, Dec 10 | Normal Airline
        USM 15:00
        6h
        Direct
        UBP 16:00
        Koh Samui - Ubon Ratchathani | Fri, Dec 12 | Normal Airline
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Displayed flight fares from Ubon Ratchathani to Koh Samui are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Ubon Ratchathani to Koh Samui

The distance between Ubon Ratchathani and Koh Samui is approximately 821.11 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight priceIDR 1,778,183
Cheapest round-trip ticket priceIDR 4,673,339
Off-season for travelSeptember
Peak season for travelJuly
Flight distance821.11 km

Find the best time to fly from Ubon Ratchathani to Koh Samui

The cheapest time for Ubon Ratchathani to Koh Samui flights: Jan 11 to Jan 18 — one way flight prices from IDR 1,778,183.

Cheapest flights
From price
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Ubon Ratchathani to Koh Samui, calculated over the upcoming 10 weeks.

Flight FAQs

  • What are the cheapest flights from Ubon Ratchathani to Koh Samui (UBP-USM)?

    Based on Trip.com data, Thai Lion Air offers one-way fares as low as IDR 1,778,183 on Cheapest nonstop routes (e.g. UBP to USM on Thu, Jan 15), while Thai AirAsia offers Cheapest nonstop round-trips from IDR 4,673,339 departing on Mon, Jan 12 and returning on Mon, Jan 19.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Ubon Ratchathani to Koh Samui 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.
  • To find best deals on flights from Ubon Ratchathani to Koh Samui, 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 Thu, Jan 15, with one-way flights priced at just IDR 1,778,183.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Thai Lion Air.
    · 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 Koh Samui travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Ubon Ratchathani to Koh Samui is September, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Ubon Ratchathani to Koh Samui on December 11, 2025 with Thai AirAsia, with prices starting at IDR 5,164,523.
  • The time difference between Koh Samui and Ubon Ratchathani is 0h.
  • 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.