USM

฿2,261 Find Cheap Flights to Ko Samui – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿5,197
Typical prices: ฿6,623-฿10,927
Bangkok Airways
Mon 19/11Fri 23/11
HKT - USM • Direct
Cheapest one-way flight
฿2,261
Typical prices: ฿4,015-฿8,273
Bangkok Airways
Sun 11/3
UTP - USM • Direct
Direct flights
You can fly direct with Bangkok Airways. Average duration is 1h 14m
FAQs
FAQs
Top airlines
Most flights • 262 per week
Best reviews • 8.1 score
Airline reviews
+1
Airline reviews
+1
Top routes
Cheapest • 25% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 25 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Ko Samui

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Ko Samui

Thu 19 Nov - Mon 23 Nov
Bangkok Airways Logo
17:30 - 18:25Phuket City  Phuket City-Ko Samui Ko Samui
0h 55mdirect
Bangkok Airways Logo
18:15 - 19:15Ko Samui  Ko Samui-Phuket City Phuket City
1h 00mdirect
฿5,197Bangkok Airways
3+ days ago
Thu 19 Nov - Mon 23 Nov
Bangkok Airways Logo
17:30 - 18:25Phuket City  Phuket City-Ko Samui Ko Samui
0h 55mdirect
Bangkok Airways Logo
18:15 - 19:15Ko Samui  Ko Samui-Phuket City Phuket City
1h 00mdirect
฿5,264Bangkok Airways
3+ days ago
Wed 4 Nov - Tue 10 Nov
Bangkok Airways Logo
06:00 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 10mdirect
Bangkok Airways Logo
07:00 - 08:15Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
6 hours ago
Sat 3 Apr - Sat 10 Apr
Bangkok Airways Logo
06:05 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 05mdirect
Bangkok Airways Logo
07:50 - 09:05Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
21 hours ago
Fri 20 Nov - Sun 22 Nov
Bangkok Airways Logo
06:00 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 10mdirect
Bangkok Airways Logo
07:00 - 08:15Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
1 day ago
Fri 2 Apr - Thu 8 Apr
Bangkok Airways Logo
06:05 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 05mdirect
Bangkok Airways Logo
07:50 - 09:05Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
3+ days ago
Sun 4 Apr - Sat 17 Apr
Bangkok Airways Logo
06:05 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 05mdirect
Bangkok Airways Logo
07:50 - 09:05Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
3 hours ago
Thu 5 Nov - Sun 8 Nov
Bangkok Airways Logo
06:00 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 10mdirect
Bangkok Airways Logo
07:00 - 08:15Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿5,298Bangkok Airways
21 hours ago
Thu 5 Nov - Sun 8 Nov
Multiple Airlines Logo
06:00 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 10mdirect
Multiple Airlines Logo
07:00 - 08:15Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿6,007Multiple Airlines
1 day ago
Thu 5 Nov - Sun 8 Nov
Multiple Airlines Logo
06:00 - 07:10Bangkok  Bangkok Suvarnabhumi-Ko Samui Ko Samui
1h 10mdirect
Multiple Airlines Logo
07:00 - 08:15Ko Samui  Ko Samui-Bangkok Bangkok Suvarnabhumi
1h 15mdirect
฿6,041Multiple Airlines
12 hours ago
Booking Insights

Price, demand, and travel trends for flights to Ko Samui

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to Ko Samui?

Phuket City to Ko Samui is the cheapest route at ฿5,197 return, found in the past 5 days on KAYAK. Bangkok Suvarnabhumi Airport to Ko Samui is the most popular connection with return deals from ฿5,298.

How much is a flight to Ko Samui?

On average, a return flight from Thailand to Ko Samui costs ฿8,550, based on KAYAK data over the past 12 months. Return fares from Phuket City average ฿7,955, while Rayong runs a bit higher at ฿8,462.

What is the cheapest day to fly to Ko Samui?

Tuesday is the cheapest day to fly to Ko Samui at ฿8,504 return on average over the past 12 months on KAYAK. Saturday is the most expensive at ฿9,246.

What is the cheapest month to fly to Ko Samui?

•May is the cheapest month to fly to Ko Samui with an average price of ฿6,547 return.
•February (฿10,394) and December (฿9,921) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Ko Samui?

Morning flights to Ko Samui are the cheapest at ฿8,605 return on average. Night flights are the most expensive at ฿11,676.

What is a good deal for flights to Ko Samui?

Flights under ฿6,623 are considered a good deal. 25% of KAYAK users found return flights to Ko Samui at or below these prices, with the lowest fares from:
•Rayong ฿6,278
•Bangkok Suvarnabhumi Airport ฿6,471.

When are flights to Ko Samui the cheapest?

Flights to Ko Samui are cheapest 25 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to Ko Samui

Low season

October

Cheapest flight

฿2,261
Beat the crowds with an average 46% drop in traveller numbers.
The most popular month to fly with an average 30% increase in traveller numbers.
One-way flight from Rayong to Ko Samui

When to book flights to Ko Samui

Are your dates flexible? Find out the best times to travel to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Ko Samui, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Ko Samui is a good deal?

    A good deal on a flight to Ko Samui is around ฿6,623 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How long are direct flights to Ko Samui from different departure cities?

    Direct flight time to Ko Samui varies depending on your departure city:

    • From Krabi: 45m
    • From Phuket City: 55m
    • From Rayong: 1h 05m
    • From Bangkok Suvarnabhumi Airport: 1h 05m
    • From Chiang Mai: 1h 45m

  • Which city has the cheapest flights to Ko Samui?

    Based on fares booked in the past 5 days, the cheapest flights to Ko Samui are from Bangkok, starting at ฿5,298 return.

  • How expensive are last-minute flights to Ko Samui?

    Last-minute fares to Ko Samui (booked within two weeks of departure) are typically 22% higher than the average return fare of ฿8,550.

  • What is the difference between the most popular and the most frequent airline at Ko Samui?

    Bangkok Airways operates the most flights from Thailand to Ko Samui at 262 per week, and for this route Bangkok Airways is also the airline most often selected by KAYAK users searching for flights from Thailand to Ko Samui. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airlines should I consider for flights to Ko Samui?

  • How many flights serve Ko Samui?

    Ko Samui receives 37 flights per day and 262 per week from across the world. Bangkok Suvarnabhumi Airport has the most flights to Ko Samui with 166 weekly flights.

Your guide to booking Ko Samui flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Ko Samui, book around 25 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 38% lower during this window than last-minute fares.
  • For flights to Ko Samui, a good return fare is around ฿6,623. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Ko Samui in May. Return fares historically average ฿6,547, making May the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to ฿3,071 on a return flight. Morning flights to Ko Samui average ฿8,605 compared to ฿11,676 for evening flights.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to Ko Samui, some airlines may include bags at no extra cost. For example, Bangkok Airways includes a cabin bag and a checked bag in Economy class, Thai Airways includes a cabin bag and a checked bag in Economy class, and โอมานแอร์ includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in Ko Samui, a few great places to start are Chaweng Beach, Lamai Beach, and Bophut Beach. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top airline flying to Ko Samui

 
Need help choosing which airline to fly with to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Bangkok AirwaysOverall score based on 132 reviews
6.3Entertainment
7.3Food
7.9Comfort
8.1Boarding
8.5Crew
Airline reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

10.0 Excellentpuravi, Jan 2026
Read more Bangkok Airways reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

We were pleased with the flight experience. Nothing to complain or shout about. Unfortunately the rating scale in this survey will skew the results and give a false impression of what really happened. For example, we didn’t use the entertainment system yet we are forced to reply. A far more insightful scale would include “not applicable.”

We flew business class this time. The food in their economy class is much better in general. Also only coffee, tea and orange juice is free. Beer can be bought only. Same as economy, so their business class service is poor.

Nice flight, stress-free but why bother serving a meal on a 55 minute flight. From what I saw there was a lot of waste because travellers weren't interesting in eating on this short trip. Get rid of the meal and cut the price.

Efficient, comfortable and clean-very good flight with friendly staff and crew

On a 45 mins flight to Koh Samui from Bangkok we were served delicious shrimp pad thai and hot tea. The flight crew did an awesome job serving a full flight.

Seats are tight and leg room so small. We had deep impressions under kneecap from the seat in front. A sign that Bangkok Airways is fully aware how small it is built is the cutout in the table. Very uncomfortable for people in size 1.80 m or more.

This is my 2nd flight with this airline. Service is very good. I was surprised they served a meal on such a short flight. The airplane landed so smooth that most people were unaware the plane had just landed. About half of the people on board applauded.

The staff were helpful and very pleasant. The food is tasty and there’s plenty of water provided. Flights are well air conditioned.

I fly Bangkok Air regularly. Could say I am loyal to their airlines and program. The only two comments of critique I could offer is (1) using the credits from accumulated miles is not as streamlines as some of the other airlines programs I am or have been a member of... and have lost opportunity to use them before expiration. (2) Sometimes, the plane is boarded / un-boarded with a service bus that has to navigate the airport and adds unwelcomed overhead time (especially during de-boarding). If have checked luggage this is transparent; if only have carry-on will slow your departure from Suvarnabhumi by ~20 minutes or more. Otherwise, a fine airline.

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Khanom
Ko Pha Ngan

More options for your flight to Ko Samui