KOS to BKK, Sihanouk International Airport to Suvarnabhumi Airport Cheap Flights

Based on HopeGoo data, Air Cambodia offers one-way fares as low as US$172 on Cheapest nonstop routes (e.g. KOS to BKK on Thu, Mar 12), while Air Cambodia offers Cheapest nonstop round-trips from US$349 departing on Sun, Feb 15 and returning on Sun, Feb 22.

At the moment, you can catch a nonstop flight from Sihanoukville to Bangkok with the following airlines, including: Air Cambodia Selected airlines are based on historical data collected from flight bookings users made on HopeGoo within the last 90 days.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Sihanoukville to Bangkok 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.

Based on HopeGoo data in the past 4 weeks, there is 1 flight per week flying from Sihanoukville to Bangkok. You can check the weekly schedule for popular airlines on this route below: Air Cambodia: -/-/-/-/-/-/- -- K6726 (12:46)

To find best deals on flights from Sihanoukville to Bangkok, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Mar 12, with one-way flights priced at just US$172. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Cambodia. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Bangkok travel is around July. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Sihanoukville to Bangkok is October, when demand for travel is lower.

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Sihanoukville to Bangkok on February 15, 2026 with Air Cambodia, with prices starting at US$164.

You can land at any one of the following hubs in Bangkok, with Sihanouk International Airport to Suvarnabhumi Airport (KOS-BKK) is by far the most common option on this route: Suvarnabhumi Airport (BKK) Don Mueang International Airport (DMK).

The time difference between Bangkok and Sihanoukville 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 HopeGoo, 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.