Cheap Flights from Bangkok (BKKT) to Samui International (USM)

Compare Bangkok to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

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Flight deals from Bangkok to Samui International

Looking for a cheap last-minute deal or the best return flight from Bangkok to Samui International Airport? If you want to travel next month, return fares start from £123. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Bangkok to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok to Samui International flights are currently cheapest in May.

Direct flights from Bangkok to Samui International

Bangkok to Samui International: Alternative routes

Compare routes from Bangkok to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Bangkok to Koh Samui: Flight information

The things to know before you go.
Cheapest flight found£59
Cheapest month to flyOctober
Average flight time1 hr, 23 mins
Most popular airlineBangkok Airways
Average flights per week1,826

Finding cheap flights from Bangkok to Samui International: Frequently asked questions

The best price we found for a return flight from Bangkok to Samui International is £121. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 22 minutes is the average flight time from Bangkok to Samui International.
Bangkok Airways, Thai Airways and Etihad Airways fly direct from Bangkok to Samui International.
As of April 2026, there are 1,826 flights per week flying from Bangkok to Samui International.
The cheapest month to fly from Bangkok to Samui International is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Bangkok to Samui International Airport on Thursday, 21 May 2026.
Yes – the average flight time is 1 hour and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Bangkok to Ko Samui International Airport (USM): What you need to know

  • Start your trip planning by checking out the best place to catch your flight from Bangkok to Ko Samui International Airport (USM). Explore your options for setting off from Bangkok Suvarnabhumi International Airport (BKK) or Bangkok Don Mueang International Airport (DMK), the city's main airports.

  • Jump on a direct Bangkok to Ko Samui International Airport flight and you'll be in the air for an average of 1 hour 15 minutes.

  • Ko Samui International Airport is located in Koh Samui. The city's timezone is UTC+7, which is the same as Bangkok.

  • The most popular route is from Bangkok Suvarnabhumi International Airport (BKK) to Ko Samui International Airport (USM), with 215 direct services every week. If you're not one for hanging around, the earliest flight from BKK to USM is the 5:50am Bangkok Airways option. If you need some extra time before takeoff, the last departure is at 8:05pm with Bangkok Airways.

  • Give yourself enough time to get on your flight from Bangkok to USM. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You'll want to head there even earlier during popular months like February. Aim for two hours before domestic departures and four hours ahead of international journeys. Once you've checked in, you can use any extra time to finalize your plans or simply relax.

Airports in Bangkok

Bangkok Suvarnabhumi International Airport (BKK)

  • You can jump on a direct flight from Bangkok to Ko Samui International Airport (USM) out of Bangkok Suvarnabhumi International Airport (BKK).

  • You can book a direct flight from Bangkok to Ko Samui International Airport with Bangkok Airways. This top airline operates departures from BKK.

  • The majority of passengers prefer to book seats with Bangkok Airways between BKK and USM.

  • The carrier with the most consistent on-time arrivals rate on this route is Bangkok Airways.

  • BKK is about 31 kms (19 miles) from central Bangkok. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 35 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the trip time to be around 35 minutes.

  • Booked an early flight from Bangkok to Ko Samui International Airport? Avoid the hassle of rushing to the terminal (and enjoy a few extra z's) by picking one of these stays close to Bangkok Suvarnabhumi International Airport:

  • When it comes to Bangkok Suvarnabhumi International Airport's on-time performance, data shows 68% of flights arrive within the expected time frame.

Bangkok Don Mueang International Airport (DMK)

  • Prefer to leave from Bangkok Don Mueang International Airport (DMK)? Direct Bangkok to Ko Samui International Airport (USM) plane tickets can be booked from here.

  • From DMK, direct flights from Bangkok to USM are available with Bangkok Airways.

  • On the DMK to USM route, Bangkok Airways is the go-to airline for most travellers.

  • For reliable, punctual service, go with Bangkok Airways. It has an on-time performance of 83.06% for flights between Bangkok Don Mueang International Airport and Ko Samui International Airport.

  • DMK is about 24 kms (15 miles) from central Bangkok. It'll take 35 minutes or so to get to the airport by car from the city centre. Public transport takes roughly 1 hour 5 minutes.

  • Want to enjoy an extra night away before catching your Bangkok to USM flight? Kick back in a hotel near Bangkok Don Mueang International Airport before your holiday officially starts. These stays have your key waiting:

  • When it comes to keeping flights on track, Bangkok Don Mueang International Airport has an on-time arrival performance of 66%.

About Ko Samui International Airport (USM)

  • Book a hotel close to USM if you're catching a late flight from Bangkok to Ko Samui International Airport. Pick one of these options and be in bed sooner:

  • Explore without limits with a Ko Samui International Airport rental car. Pick up a set of wheels from asap car hire, Hertz or Drive Car Hire and find adventure across Koh Samui and beyond.

  • Get the best deal by booking your vehicle around four weeks before your Bangkok to Ko Samui International Airport flight.

Getting from Ko Samui International Airport (USM) to central Koh Samui

  • Central Koh Samui is around 11 kms (7 miles) from Ko Samui International Airport and takes about 20 minutes to reach by car. See what your options are for heading into the city, whether that's with a taxi, car hire or ride-share.

  • It typically takes 30 minutes when travelling by public transport.

How to find the cheapest flights from Bangkok to Ko Samui International Airport (USM)

  • The cheapest price we've found for a one-way ticket from Bangkok to Ko Samui International Airport is £59. For a return flight on this route, the best price is £121. Depending on when you want to go and the availability, these fares could change.

  • To pick up cheap flights from Bangkok to USM, book in advance. Airlines typically offer their most competitively priced fares when tickets are first released.

  • If you have some flexibility with your travel dates, try using the 'Whole month' search tool. It'll give you the lowest price across every month when searching for your Bangkok to Ko Samui International Airport ticket.

  • Save time looking for cheap plane tickets from Bangkok to USM by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Save money on your flight from Bangkok to Ko Samui International Airport by using filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

Explore more of Thailand

  • You've seen Koh Samui, now it's time to explore other parts of Thailand. Journey around 129 kms (80 miles) south to Nakhon Si Thammarat to check off its popular sights. From Wat Phra Phrom to Wat Pho Sadet and Wat Yai Chai Mongkol, you'll have a full itinerary ahead.

  • If you want to check out another major stop in Thailand, consider Phuket, about 257 kms (160 miles) southwest of Koh Samui. V.MarineTour- Phi Phi Islands Day Trip - Private Boat Charters, Sunrise Beach and Paradise Beach are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.