Best time to go: what is the RIGHT price for a round-trip flight to Koh Samui (from: Dublin)

The average price to go to Koh Samui from Dublin airport is $ 996 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 851 (in may) and $ 1182 (in august), which is a saving of $ 146 or a surplus of $ 186 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $730 to $782 and it is generally more economical to leave on a wednesday and return on a wednesday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Koh Samui before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Dublin-Koh Samui plane ticket.

How are these data calculated?

We have studied a sample of 27777 airfare prices from previous years for flights to Koh Samui from Dublin and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Data analysis:

By leaving in may, the price of the plane ticket will statistically be the cheapest ($ 851, saving $ 146 compared to the average price over the year which is $ 996). Conversely, august will be the most expensive ($ 1182).

Flight Dublin-Koh Samui: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 894 $ 1051 fair price
February$ 866 $ 1013 fair price
March$ 790 $ 902 good price
April$ 920 $ 1058 fair price
May$ 759 $ 851 very good price
June$ 791 $ 933 fair price
July$ 1019 $ 1159 high price
August$ 988 $ 1182 very high price
September$ 771 $ 863 good price
October$ 789 $ 894 good price
November$ 792 $ 906 good price
December$ 964 $ 1136 high price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from Dublin to Koh Samui

Data analysis:

The prices for flights from Dublin to Koh Samui range from $625 to $1459. 2% of tickets were purchased at the minimum price (from $626 to $678), 1% at the maximum price (from $1407 to $1459). The majority of plane tickets were purchased in the range of $938 to $990 (10% of tickets).

Cheapest airlines for the Dublin->Koh Samui flight

There are 12 companies that serve Dublin from Koh Samui airport: Qatar Airways, Ryanair, Etihad Airways, Aer Lingus, KLM, Lufthansa, Finnair, Emirates, Swiss, Air France, Turkish Airlines and IndiGo.

Data analysis:

Of the 27777 flights analyzed in previous years, Qatar Airways was the airline that offered the best fare most often in the flight ticket search results (22% of the time) on the Dublin->Koh Samui route.

Which day of the week to leave?

Data analysis:

Statistically, Dublin-Koh Samui flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $36. On the other hand, departing on a saturday may cost you an additional $32.

Which day of the week to come back?

Data analysis:

Statistically, return flights from Koh Samui to Dublin departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday for your return date, you will save an average of $30. Conversely, departing from Koh Samui on a saturday may cost you an additional $32.


Top prices Dublin-Koh Samui

Round tripDatesPrice
Dublin → Koh Samui02-12 to 09-12-2024$ 855 
Dublin → Koh Samui03-03 to 18-03-2025$ 826 
Dublin → Koh Samui16-03 to 22-03-2025$ 855 
Dublin → Koh Samui17-03 to 23-03-2025$ 829 
Dublin → Koh Samui18-03 to 24-03-2025$ 835 
Dublin → Koh Samui20-03 to 30-03-2025$ 842 
Dublin → Koh Samui01-05 to 10-05-2025$ 940 
Dublin → Koh Samui07-05 to 25-05-2025$ 935 
Dublin → Koh Samui19-05 to 26-05-2025$ 912 
Dublin → Koh Samui20-05 to 28-05-2025$ 820 


When to book your flight Dublin - Koh Samui to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 3 to 4 months in advance. However, you may end up paying a high price if you book between 11 to 12 months in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Dublin-Koh Samui flight, it is recommended to book your ticket on a sunday.

How far in advance should I buy my flight?

Data analysis:

To get the cheapest flight ticket from Dublin to Koh Samui, it is recommended to buy it 3 to 4 months before departure (it is then on average 956 $, which is a saving of 40 $ compared to the overall average price). On the other hand, if you buy your ticket 11 to 12 months in advance, you will pay the full price (202 $ more than the average price).

Depending on the departure month

The best time to buy your Dublin to Koh Samui flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 8 to 9 months before departure (average price: 928 $)

Other interesting period(s): 1 to 2 months ($ 1045), 3 to 4 months ($ 1032), 4 to 5 months ($ 1008), 5 to 6 months ($ 1027), 6 to 7 months ($ 985), 9 to 10 months ($ 950), 10 to 11 months ($ 1027)

February

Best time: 8 to 9 months before departure (average price: 865 $)

Other interesting period(s): 1 to 2 months ($ 1000), 2 to 3 months ($ 1005), 4 to 5 months ($ 1008), 5 to 6 months ($ 973), 6 to 7 months ($ 961), 7 to 8 months ($ 999), 9 to 10 months ($ 932), 10 to 11 months ($ 970)

March

Best time: 9 to 10 months before departure (average price: 846 $)

Other interesting period(s): 0 to 1 month ($ 896), 1 to 2 months ($ 866), 2 to 3 months ($ 889), 6 to 7 months ($ 878)

April

Best time: 1 to 2 months before departure (average price: 983 $)

Other interesting period(s): 2 to 3 months ($ 1012), 3 to 4 months ($ 989), 4 to 5 months ($ 1051), 6 to 7 months ($ 1031)

May

Best time: 3 to 4 months before departure (average price: 792 $)

Other interesting period(s): 1 to 2 months ($ 826), 2 to 3 months ($ 845), 4 to 5 months ($ 824)

June

Best time: 3 to 4 months before departure (average price: 837 $)

Other interesting period(s): 1 to 2 months ($ 877), 2 to 3 months ($ 853), 4 to 5 months ($ 886), 5 to 6 months ($ 845), 6 to 7 months ($ 899), 7 to 8 months ($ 917), 8 to 9 months ($ 925), 9 to 10 months ($ 887)

July

Best time: 3 to 4 months before departure (average price: 1031 $)

Other interesting period(s): 1 to 2 months ($ 1139), 2 to 3 months ($ 1101), 4 to 5 months ($ 1147), 5 to 6 months ($ 1119), 6 to 7 months ($ 1119), 7 to 8 months ($ 1067), 8 to 9 months ($ 1143)

August

Best time: 3 to 4 months before departure (average price: 1068 $)

Other interesting period(s): 1 to 2 months ($ 1173), 2 to 3 months ($ 1158), 4 to 5 months ($ 1115), 5 to 6 months ($ 1164), 6 to 7 months ($ 1165), 7 to 8 months ($ 1133), 8 to 9 months ($ 1182)

September

Best time: 9 to 10 months before departure (average price: 796 $)

Other interesting period(s): 1 to 2 months ($ 858), 2 to 3 months ($ 833), 3 to 4 months ($ 833), 4 to 5 months ($ 821), 5 to 6 months ($ 820), 6 to 7 months ($ 859), 7 to 8 months ($ 846), 8 to 9 months ($ 826)

October

Best time: 7 to 8 months before departure (average price: 827 $)

Other interesting period(s): 2 to 3 months ($ 889), 3 to 4 months ($ 866), 4 to 5 months ($ 832), 5 to 6 months ($ 867), 6 to 7 months ($ 877), 8 to 9 months ($ 845)

November

Best time: 7 to 8 months before departure (average price: 802 $)

Other interesting period(s): 2 to 3 months ($ 898), 3 to 4 months ($ 871), 4 to 5 months ($ 894), 5 to 6 months ($ 837), 6 to 7 months ($ 849), 8 to 9 months ($ 812), 9 to 10 months ($ 824), 10 to 11 months ($ 885)

December

Best time: 7 to 8 months before departure (average price: 1039 $)

Other interesting period(s): 3 to 4 months ($ 1126), 4 to 5 months ($ 1109), 6 to 7 months ($ 1100), 8 to 9 months ($ 1115), 10 to 11 months ($ 1059)

What day of the week should I book my flight ticket?

Data analysis:

Statistically, sunday is the day when plane tickets for Dublin->Koh Samui are the cheapest. So, by buying your plane ticket on a sunday, you will save $7. Conversely, by buying it on a saturday, you may end up paying $17 more.



Dublin to Koh Samui: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
December 2024$ 1452
$855 to $2855
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January 2025$ 1425
$1054 to $1916
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February 2025$ 1214
$1015 to $1428
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March 2025$ 1208
$826 to $4944
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April 2025$ 1518
$1441 to $1589
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May 2025$ 945
$820 to $994
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June 2025$ 981
$942 to $1025
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July 2025$ 1381
$1219 to $1550
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August 2025$ 1381
$1114 to $1686
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September 2025$ 1000
$1000 to $1000
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Data analysis:

Compared to the average price, no month is currently cheaper. We therefore advise you to wait for prices to drop before booking your flight to Koh Samui.



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