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Flights from Koh Samui to Ubon Ratchathani

Find flight deals from Koh Samui to Ubon Ratchathani for the next 3 months. Book one way flights from SAR 554 or round trip flights from SAR 1,244.

      • USM 06:45
        9h 10m
        1 stop
        UBP 15:55
        Koh Samui - Ubon Ratchathani | Sat, Jan 31 | Bangkok Airways
        UBP 09:20
        10h 30m
        1 stop
        USM 19:50
        Ubon Ratchathani - Koh Samui | Sat, Feb 7 | Thai Lion Air
        SAR 1,244 SAR 2,650
        53% OFF
        53% OFF
        SAR 2,650 SAR 1,244
      • USM 06:45
        6h 10m
        1 stop
        UBP 12:55
        Koh Samui - Ubon Ratchathani | Sat, Jan 10 | Bangkok Airways
        UBP 20:45
        11h 20m
        1 stop
        USM 08:05
        Ubon Ratchathani - Koh Samui | Sat, Jan 17 | Thai AirAsia
        SAR 1,385 SAR 2,650
        48% OFF
        48% OFF
        SAR 2,650 SAR 1,385
      • USM 07:15
        25h 25m
        1 stop
        UBP 08:40
        Koh Samui - Ubon Ratchathani | Sun, Dec 28 | Bangkok Airways
        UBP 09:20
        9h 20m
        1 stop
        USM 18:40
        Ubon Ratchathani - Koh Samui | Thu, Jan 1 | Thai Lion Air
        SAR 1,769 SAR 2,650
        33% OFF
        33% OFF
        SAR 2,650 SAR 1,769
      • USM 07:15
        8h 40m
        1 stop
        UBP 15:55
        Koh Samui - Ubon Ratchathani | Tue, Dec 30 | Bangkok Airways
        UBP 09:20
        11h 5m
        1 stop
        USM 20:25
        Ubon Ratchathani - Koh Samui | Wed, Dec 31 | Thai Lion Air
        SAR 1,935
        27% OFF
        SAR 2,650 SAR 1,935
      • USM 13:00
        17h 25m
        1 stop
        UBP Invalid Date
        Koh Samui - Ubon Ratchathani | Sun, Dec 14 | Normal Airline
        UBP 15:00
        6h
        Nonstop
        USM 16:00
        Ubon Ratchathani - Koh Samui | Tue, Dec 16 | Normal Airline
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        Find More Flights
      • USM 13:30
        20h 10m
        1 stop
        UBP 09:40
        Koh Samui - Ubon Ratchathani | Wed, Dec 31 | Bangkok Airways
        SAR 554 SAR 902
        39% OFF
        39% OFF
        SAR 902 SAR 554
      • USM 08:30
        25h 10m
        1 stop
        UBP 09:40
        Koh Samui - Ubon Ratchathani | Wed, Dec 17 | Bangkok Airways
        SAR 599 SAR 902
        34% OFF
        34% OFF
        SAR 902 SAR 599
      • USM 06:45
        24h 50m
        1 stop
        UBP 07:35
        Koh Samui - Ubon Ratchathani | Fri, Dec 19 | Bangkok Airways
        SAR 605 SAR 902
        33% OFF
        33% OFF
        SAR 902 SAR 605
      • USM 07:45
        8h
        1 stop
        UBP 15:45
        Koh Samui - Ubon Ratchathani | Mon, Dec 22 | Bangkok Airways
        SAR 607
        33% OFF
        SAR 902 SAR 607
      • USM 06:45
        13h 30m
        1 stop
        UBP 20:15
        Koh Samui - Ubon Ratchathani | Thu, Jan 22 | Bangkok Airways
        SAR 619
        31% OFF
        SAR 902 SAR 619
      • USM 07:15
        8h 30m
        1 stop
        UBP 15:45
        Koh Samui - Ubon Ratchathani | Wed, Dec 24 | Bangkok Airways
        SAR 625
        31% OFF
        SAR 902 SAR 625
      • USM 06:45
        6h 10m
        1 stop
        UBP 12:55
        Koh Samui - Ubon Ratchathani | Sat, Jan 31 | Bangkok Airways
        SAR 631
        30% OFF
        SAR 902 SAR 631
      • USM 06:45
        8h 20m
        1 stop
        UBP 15:05
        Koh Samui - Ubon Ratchathani | Sat, Dec 13 | Bangkok Airways
        SAR 640
        28% OFF
        SAR 902 SAR 640
      • USM 06:45
        14h 15m
        1 stop
        UBP 21:00
        Koh Samui - Ubon Ratchathani | Wed, Jan 21 | Bangkok Airways
        SAR 657
        27% OFF
        SAR 902 SAR 657
      • USM 06:45
        6h 10m
        1 stop
        UBP 12:55
        Koh Samui - Ubon Ratchathani | Sun, Jan 25 | Bangkok Airways
        SAR 658
        27% OFF
        SAR 902 SAR 658
      • USM 13:00
        17h 25m
        1 stop
        UBP Invalid Date
        Koh Samui - Ubon Ratchathani | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Koh Samui to Ubon Ratchathani are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Koh Samui to Ubon Ratchathani

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

Cheapest one-way flight priceSAR 554
Cheapest return ticket priceSAR 1,244
Off-season for travelOctober
Peak season for travelJuly
Flight distance821.11 km

When is the cheapest time to fly from Koh Samui to Ubon Ratchathani?

The cheapest time for Koh Samui to Ubon Ratchathani flights: Dec 28 to Jan 4 — one way flight prices from SAR 553.

Cheapest flights
From price
Search
  • 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 Koh Samui to Ubon Ratchathani, calculated over the upcoming 10 weeks.

Frequently Asked Questions

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

    Based on Trip.com data, Bangkok Airways offers one-way fares as low as SAR 554 on Cheapest nonstop routes (e.g. USM to UBP on Wed, Dec 31), while Bangkok Airways offers Cheapest nonstop round-trips from SAR 1,244 departing on Sat, Jan 31 and returning on Sat, Feb 7.
  • 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 Ubon Ratchathani 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 Koh Samui to Ubon Ratchathani, 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 Wed, Dec 31, with one-way flights priced at just SAR 554.
    · 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 Ubon Ratchathani travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Koh Samui to Ubon Ratchathani is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Koh Samui to Ubon Ratchathani on December 28, 2025 with Bangkok Airways, with prices starting at SAR 1,768.
  • The time difference between Ubon Ratchathani and Koh Samui 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.

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