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£355+ Cheap flights to Koh Samui

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
23 Oct — 30 Oct1
1 adult

Flights to Koh Samui in 2024

Find the latest flights to Koh Samui in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 1,032,784 searches and data was last updated on 18 October 2024.

Return from

£742

One-way from

£355

Popular in

December

Cheapest in

September

Average price

£823
1/11-10/11
  • 1/11-10/11
  • 6 total stops
  • 58h 00m total
  • London to Koh Samui
5/11
  • 5/11
  • 3 total stops
  • 56h 00m total
  • London to Koh Samui
High demand for flights, 7% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for return flights in October 2024

Find flight deals to Koh Samui

Cheapest flights to Koh Samui
Explore the most affordable flight options available to Koh Samui. Find the lowest fares based on data from user searches, with prices last updated on 18 October 2024.

Fri 1/1107:00LGW - USM
3 stops28h 25mMultiple Airlines
Sun 10/1113:25USM - LGW
3 stops29h 35mMultiple Airlines
Deal found 17/10£742
Sat 2/1121:00LHR - USM
2 stops28h 10mMultiple Airlines
Sun 10/1118:15USM - LHR
2 stops30h 15mMultiple Airlines
Deal found 17/10£742
Fri 1/1106:10LTN - USM
2 stops20h 10mMultiple Airlines
Sun 10/1113:25USM - LTN
3 stops29h 20mMultiple Airlines
Deal found 17/10£757
Wed 4/1219:20LHR - USM
2 stops29h 25mEtihad Airways
Fri 20/1219:00USM - LHR
2 stops24h 05mEtihad Airways
Deal found 17/10£810
Mon 18/1121:20LHR - USM
1 stop15h 30mEVA Air
Wed 27/1108:30USM - LHR
1 stop17h 50mEVA Air
Deal found 16/10£825
Mon 2/1217:05LHR - USM
2 stops21h 00mKLM
Mon 9/1208:30USM - LHR
2 stops19h 20mKLM
Deal found 16/10£840
Wed 13/1120:05LHR - USM
2 stops42h 00mSWISS
Wed 20/1116:25USM - LHR
2 stops30h 55mSWISS
Deal found 16/10£849
Fri 6/1219:20LCY - USM
2 stops18h 45mMultiple Airlines
Mon 16/1213:25USM - LCY
2 stops27h 00mMultiple Airlines
Deal found 16/10£851
Wed 20/1117:15LCY - USM
2 stops20h 50mLufthansa
Sun 24/1116:25USM - LCY
2 stops24h 00mLufthansa
Deal found 17/10£878
Tue 5/1116:55LGW - USM
2 stops21h 10mTurkish Airlines
Tue 19/1121:25USM - LGW
2 stops25h 35mTurkish Airlines
Deal found 17/10£882
Fri 22/1119:20LCY - USM
2 stops18h 45mSWISS
Tue 26/1116:25USM - LCY
2 stops23h 20mSWISS
Deal found 17/10£901
Tue 5/1114:05STN - USM
2 stops21h 10mEmirates
Tue 12/1119:10USM - STN
2 stops23h 55mEmirates
Deal found 16/10£904

Find flights to Koh Samui within your budget

Locate flights to Koh Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 1,032,784 searches and data was last updated on 18 October 2024.

Fly from

Any airport

Budget

£742 - £953

Route

Depart

Return

Price

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 1/11

3 stops28h 25m

Ko Samui

Sun 10/11

3 stops29h 35m

£742

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Sun 16/2

1 stop16h 25m

Ko Samui

Wed 12/3

1 stop17h 00m

£782

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Sat 1/3

2 stops23h 05m

Ko Samui

Mon 17/3

2 stops29h 50m

£797

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Wed 4/12

2 stops29h 25m

Ko Samui

Fri 20/12

2 stops24h 05m

£810

London StanstedKo Samui

STN - USM

STNUSM

London Stansted

Thu 20/3

2 stops19h 55m

Ko Samui

Wed 2/4

2 stops21h 45m

£812

London CityKo Samui

LCY - USM

LCYUSM

London City

Thu 20/3

2 stops20h 50m

Ko Samui

Wed 2/4

2 stops22h 15m

£878

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 27/3

2 stops19h 25m

Ko Samui

Tue 8/4

2 stops31h 30m

£880

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 5/11

2 stops21h 10m

Ko Samui

Tue 19/11

2 stops25h 35m

£882

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 2/12

2 stops21h 00m

Ko Samui

Mon 9/12

2 stops19h 20m

£886

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 24/11

1 stop26h 05m

Ko Samui

Thu 30/1

1 stop17h 55m

£910

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 5/11

1 stop18h 45m

Ko Samui

Tue 19/11

1 stop36h 40m

£949

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 22/2

1 stop16h 30m

Ko Samui

Sun 9/3

1 stop16h 10m

£953

Flights are sorted by cheapest first

Deals found on 17/10

Best time to book a flight to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights to Koh Samui

Get recent, data-driven insights about flights to Koh Samui including ideal travel times, pricing trends, and more.

When is the best time to book a flight to Koh Samui?

Use this chart to determine the optimal time to book a return flight from London to Koh Samui. Price data was last updated on 11 October 2024.

May is generally the most pleasant time to visit. Temperatures aren’t too humid and hot but the rain is also a much rarer occurrence. You might struggle to find the cheapest flights to Koh Samui in May however as a lot of tourists do visit the island then. Anywhere from May to late September is great if you’re hoping to take part in diving or other sea activities (although the visibility from Koh Samui isn’t ideal for diving). If you are flexible then you’ll find the cheapest flights to Koh Samui a lot easier. If you have no choice but to travel during a school holiday then make sure you’ve got your flight tickets and hotel rooms booked four, five or even six months in advance to avoid paying hefty prices. Make sure you try to get a window seat for amazing views as you approach. Depending on the direction of the plane the right-hand side could offer slightly better views although nothing worth worrying too much about.

How long is the flight to Koh Samui?

On average, a flight from London to Koh Samui takes 20 hours 8 minutes. Flights to Koh Samui from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Koh Samui?

Use this chart to determine the cheapest time to fly return from London to Koh Samui. Price data was last updated on 12 May 2024.

Users looking for the lowest fares to Koh Samui should consider flying on Tuesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.

What are the cheapest airlines that fly to Koh Samui?

The cheapest airlines flying from London to Koh Samui are Bangkok Airways, Austrian Airlines and KLM.

Rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Koh Samui when rainfall is around 58.0 mm.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Koh Samui. Reviews last updated 18 October 2024.
To help decide which airline to fly to Koh Samui, see what other customers have to say about Lufthansa, Etihad Airways and Gulf Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.4
Very Good
1,349 reviews
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
3,548 reviews
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
1,331 reviews
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.8
Good
1,361 reviews
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.8
Good
383 reviews
8.4
Very Good
1,349 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

  • When is the best time to fly to Koh Samui?

    Peak season: Trying to figure out the peak season is a little difficult as it isn’t based on the weather. April to October is the best time to fly in regards to the weather, but you’ll find accommodation varies dramatically from one week to the next and cheap flights to Koh Samui will either be easily available, or impossible to find. Koh Samui instead focus their peak seasons on events and school holidays, hotels rates around Easter for example are incredibly expensive, but then a few days later will be extremely cheap again. Your best bet is to decide on a couple of dates you’d be comfortable travelling and then doing any research to see if there are any events, school holidays or bank holidays which would affect the cost of things. Try to avoid Christmas and New Years’ unless you have your flight tickets and hotel room secured well in advance. Off season: October and November are the quieter months of the year as the weather isn’t great and can get very wet. You’ll find the cheapest flights to Koh Samui then though so if you’re not a fan of the sunny weather then this would be the perfect time to visit.

  • How long is the flight to Koh Samui?

    Flights from London to Koh Samui: 13 hours 35 minutes Flights from Manchester to Koh Samui: 16 hours 25 minutes Flights from Birmingham to Koh Samui: 16 hours 50 minutes Flights from Glasgow to Koh Samui: 16 hours 40 minutes

  • Which airlines operate flights to Koh Samui?

    There are a few different airlines that operate cheap flights to Koh Samui with Malaysia, Aeroflot, Emirates, KLM and Bangkok Airways the major players. Bangkok Airways are virtually the only airline to finish the journey and actually land in Koh Samui as they own the rights to the route, however you can still fly in luxury with Emirates until then if you’re budget allows for it. Finding a direct flight from the UK isn’t going to happen so once you have a rough idea when you want to travel you can compare a few different airlines to see who will provide the cheapest flights to Koh Samui. The duration of the journey can make trying to find a higher-end airline more appealing, so if you can afford to pay a little extra, Emirates would be a great choice to consider for a much more satisfying journey.

  • How to get from the airport to the city centre?

    Once your flights to Koh Samui have landed on the idyllic island, you’ll find yourself a little limited as to how to get to where ever it is you are staying (which you should try and arrange at the same time as you book your flight tickets if you can.) The only real option you have is to get a seat on a mini-van. These are relatively inexpensive although there are higher-end ones too. Official taxis are also limited, and any you do find won’t want to use their metres so you’ll be paying the same or more than the mini-buses. There’s a chance you will get offered a free taxi journey by agreeing to stay at a certain hotel and listen to their time-share presentation, such offers should be avoided politely.

  • What does USM mean?

    Ko Samui Airport is USM. This code is created by the International Air Transport Association (IATA) and airlines use IATA codes to identify the departing or arrival airports in the flight routes they service.

  • What airport do you fly into for flights to Koh Samui?

    Most people fly into Ko Samui (USM) if they book a flight to Koh Samui. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

  • Can I find cheaper flights to Koh Samui if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Koh Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Koh Samui?

    Based on reviews from Cheapflights users, Bangkok Airways is rated the highest out of the airlines that fly to Koh Samui.

  • What is the cheapest airport to fly to in Koh Samui?

    Ko Samui is currently the cheapest airport to fly to in Koh Samui. One-way flights to Ko Samui typically cost £45, while return flights cost around £107.

  • How much is a return flight to Koh Samui?

    A return flight to Koh Samui will typically cost around £272, however they can be found for as little as £139.

  • Where does the fastest flight to Koh Samui depart from?

    For those looking to save time traveling to Koh Samui, London offers the quickest one-way flight (16 hours 55 minutes).

  • Does Ko Samui have car hire?

    Yes. Those touching down at Ko Samui can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 mi away from Ko Samui).

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Cheapflights does show flights with no change fees to all users. To see these options for flights to Koh Samui, users can toggle the no change fees filter when performing a flight search.

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