Cheap flight tickets from Belfast to Samui International

Compare Belfast 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 Belfast to Samui International Airport

Looking for a cheap last-minute deal or the best return flight from Belfast to Samui International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Samui International

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

Belfast to Samui International: Alternative routes

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

Belfast to Koh Samui: Flight information

The things to know before you go.
Cheapest flight foundRM4,172
Cheapest month to flyApril

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

The best price we found for a return flight from Belfast to Samui International is RM9,453. 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.
Currently, there are no airlines that fly direct from Belfast to Samui International. But we found flights with one stop from RM9,453.
As of April 2026, there are no flights flying from Belfast to Samui International.
The cheapest month to fly from Belfast to Samui International is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Samui International Airport on Monday, 13 April 2026.
No airlines currently offer direct flights between Belfast and Samui International Airport. Most routes have one or more stops.
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.
The cheapest airline that flies to Samui International is Qatar Airways .

Flying from Belfast to Koh Samui Airport (USM): What you need to know

  • There are two main airports to choose from in Belfast. Explore your options departing from Belfast International Airport (BFS) or George Best Belfast City Airport (BHD) when planning your flight from Belfast to Koh Samui Airport (USM).

  • Koh Samui is seven hours ahead of Belfast. Koh Samui Airport is located in Koh Samui, which operates on the UTC+7 timezone.

  • To ensure you catch your flight from Belfast to USM, leave enough time to check in and drop off your luggage. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • Peak travel periods mean busier airports, so be there even earlier. Give yourself at least two hours before a domestic flight and four hours for an international journey to stay on schedule.

Airports in Belfast

Belfast International Airport (BFS)

  • Travelling from central Belfast to BFS takes around 2 hours on public transport. If you ride-share, drive or grab a cab, you'll cover the 32 kilometres in 30 minutes or so, depending on traffic.

  • Want a stress-free start to your journey? Stay near Belfast International Airport. Whether you're catching an early flight from Belfast to Koh Samui Airport or prefer not to feel hurried, these hotels are just what you're after:

  • When it comes to the on-time performance of Belfast International Airport, data shows 67.55% of flights stick to their scheduled arrival time.

George Best Belfast City Airport (BHD)

  • BHD is around 8 kilometres from central Belfast. It takes 10 minutes or so to get to the airport if you're driving from the city centre. Public transport takes approximately 20 minutes.

  • Want to enjoy an extra night away before your Belfast to USM flight? Kick back in a hotel near George Best Belfast City Airport before your trip officially begins. These stays have a room with your name on it:

  • As far as flight punctuality goes, George Best Belfast City Airport has an on-time arrival performance of 68.3%.

About Koh Samui Airport (USM)

  • If you're arriving on a late flight from Belfast to Koh Samui Airport, few things beat the convenience of staying close to the terminal. Pick up your luggage at baggage claim and then be showered and sleeping not long after at one of these options near USM:

  • Follow your own route with a Koh Samui Airport rental car. Pick up a set of wheels from asap car hire, Hertz or Drive Car Hire and venture far and wide through Koh Samui and beyond.

  • For the lowest price, book your ride around four weeks in advance of your Belfast to Koh Samui Airport flight.

How to find the cheapest flights from Belfast to Koh Samui Airport (USM)

  • At the moment, RM4,172 is the lowest price we've found for a one-way ticket from Belfast to Koh Samui Airport. The cheapest price for a return flight is RM9,453. Keep in mind fares may change due to availability at the time of booking.

  • Booking early is often the key to scoring a cheap flight from Belfast to USM. Fares tend to rise as seats fill up, so the closer you get to departure, the more you'll likely spend on your ticket.

  • The 'Whole month' search tool will show you the cheapest Belfast to Koh Samui Airport tickets throughout the month. It's a good way to find a bargain if your plans are flexible.

  • Be the first to know about deals for plane tickets from Belfast to USM by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.

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

Explore more of Thailand

  • Nakhon Si Thammarat is just one of the many cities in Thailand waiting to be explored once you've seen the sights of Koh Samui. Around 129 kilometres away to the south, top sights here include Wat Phra Phrom, Wat Pho Sadet and Wat Yai Chai Mongkol.

  • Phuket is another must-experience destination in Thailand and is around 257 kilometres south-west of Koh Samui. No journey is complete without dropping by V.MarineTour- Phi Phi Islands Day Trip - Private Boat Charters, Sunrise Beach and Paradise Beach.

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