Cheap Flights to Koh Samui

Return
Economy
Boston (BOS)
Koh Samui (USM)
Thu 24-6
Thu 1-7
Any month
|
Home Asia Thailand Cheap flights to Koh Samui, Thailand

Flights to Koh Samui in 2021

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inJanuaryHigh demand for flights, 11% potential price rise
Cheapest inNovemberBest time to find cheap flights, 4% potential price drop
Average priceHK$4,199Average for round-trip flights in June 2021
Round-trip fromHK$3,384From Hong Kong Intl to Koh Samui
One-way fromHK$78One-way flight from Hong Kong to Koh Samui

Cheapest prices for Koh Samui flights by month

The cheapest ticket to Koh Samui found for each month in 2021 based on historical flight searches by Cheapflights users.
January
HK$3,641
February
HK$3,524
March
HK$3,840
April
HK$4,345
May
HK$3,899
June
HK$3,846
July
HK$4,369
August
HK$4,235
September
HK$3,774
October
HK$3,656
November
HK$2,960
December
HK$3,463
Currently, the cheapest month for flights to Koh Samui is November. The most expensive month for flights is July. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

When is the best time to fly to Koh Samui?

Average Koh Samui flight ticket prices and weather conditions for 2021 and 2022 by month.
HKG - USM
Price
HK$2,960 - HK$7,383
USM
Temperature
29 - 33 °C
USM
Rainfall
50 - 423 mm
Whilst there are several times of the year to choose from, November is seen as the time to fly to Koh Samui, however, it is possible to get good deals throughout the year. May tends to be the warmest period in Koh Samui so if you are looking for sun or warmer climates then look to fly around this time. November is the wettest if you need to factor this in to your plans.

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

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights to Koh Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Which day is cheapest to fly to Koh Samui?

Saturday is currently, on average, the cheapest day to fly to Koh Samui. Flying on Friday will result in higher flight prices.

What time of day is cheapest to fly to Koh Samui?

Koh Samui flights can be made cheaper if you choose a flight in the evening. Booking a flight in the afternoon will likely mean higher prices.

Cheap flights to Koh Samui in June, July 2021

The best prices found for USM flights for June, July
18 Jun - 20 Jun
HK$3,679pp
HKG
Hong Kong Intl
Multiple airlines
 
1 STOP
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
 
1 STOP
HKG
Hong Kong Intl
18 Jun - 20 Jun
HK$3,990pp
HKG
Hong Kong Intl
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
 
1 STOP
HKG
Hong Kong Intl
17 Jun - 20 Jun
HK$7,405pp
HKG
Hong Kong Intl
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
 
1 STOP
HKG
Hong Kong Intl

Koh Samui 2021 flight deals

Cheap flights to Koh Samui found for this year
12 Nov - 15 Nov
HK$3,307pp
HKG
Hong Kong Intl
Multiple airlines
 
1 STOP
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
 
1 STOP
HKG
Hong Kong Intl
12 Nov - 15 Nov
HK$3,384pp
HKG
Hong Kong Intl
Emirates
 
1 STOP
USM
Koh Samui
USM
Koh Samui
Emirates
 
1 STOP
HKG
Hong Kong Intl
18 Jun - 20 Jun
HK$3,679pp
HKG
Hong Kong Intl
Multiple airlines
 
1 STOP
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
 
1 STOP
HKG
Hong Kong Intl

Alternative, similarly priced destinations

See alternative destinations where airfare is generally forecast to be close to Koh Samui flight prices.

Find the best prices for you!

Cheap tickets to Koh Samui found by our users in Hong Kong as recently as June 17, 2021.

Cheapest flights to Thailand

Not set on Koh Samui? See the cheapest flights to Hong Kong. Airfare prices updated on June 17, 2021.
Home Asia Thailand Cheap flights to Koh Samui, Thailand
  • Return
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First