Statistics on London-Koh Samui flights: what is the right price and when to buy your plane ticket?
Best time to go: what is the RIGHT price for a round-trip flight to Koh Samui (from: London)
The average price to go to Koh Samui from London airport is $ 1126 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 986 (in may) and $ 1429 (in august), which is a saving of $ 141 or a surplus of $ 303 (compared to the average price) depending on the period you leave.
The analysis of all prices reveals that the most frequent price is between $932 to $987 and it is generally more economical to leave on a monday and return on a monday on a flight with 1 or more layovers.
Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Koh Samui before booking your flight.
If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your London-Koh Samui plane ticket.
How are these data calculated?
We have studied a sample of 60000 airfare prices from previous years for flights to Koh Samui from London and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in may, the price of the plane ticket will statistically be the cheapest ($ 986, saving $ 141 compared to the average price over the year which is $ 1126). Conversely, august will be the most expensive ($ 1429).
Flight London-Koh Samui: when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 1001 | $ 1144 | fair price |
| February | $ 1005 | $ 1136 | fair price |
| March | $ 906 | $ 1000 | good price |
| April | $ 1037 | $ 1184 | fair price |
| May | $ 907 | $ 986 the cheapest | very good price |
| June | $ 908 | $ 998 | good price |
| July | $ 1126 | $ 1283 | fair price |
| August | $ 1235 | $ 1429 the most expensive | very high price |
| September | $ 907 | $ 1003 | good price |
| October | $ 913 | $ 1045 | good price |
| November | $ 892 | $ 988 | good price |
| December | $ 1078 | $ 1316 | fair 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 London to Koh Samui
Data analysis:
The prices for flights from London to Koh Samui range from $767 to $1535. 3% of tickets were purchased at the minimum price (from $768 to $822), 1% at the maximum price (from $1480 to $1535). The majority of plane tickets were purchased in the range of $932 to $987 (16% of tickets).
Cheapest airlines for the London->Koh Samui flight
There are 27 companies that serve London from Koh Samui airport: Wizz Air Uk, Etihad Airways, Gulf Air, China Eastern, EVA Air, Qatar Airways, Ryanair, Saudia, Air China, Lufthansa, EasyJet, wizz air malta, Cathay Pacific, Singapore Airlines, British Airways, Thai Airways, Air France, SAS, Shenzhen Airlines, Emirates, Qantas, Pegasus Airlines, Malaysia Airlines, Swiss, Air India, Austrian Airlines and Turkish Airlines.
Data analysis:
Of the 60000 flights analyzed in previous years, Wizz Air Uk was the airline that offered the best fare most often in the flight ticket search results (14% of the time) on the London->Koh Samui route.
Which day of the week to leave?
Data analysis:
Statistically, London-Koh Samui flights departing on a monday are cheaper than on other days of the week. By choosing a monday as your departure date, you can save an average of $31. On the other hand, departing on a thursday may cost you an additional $20.
Which day of the week to come back?
Data analysis:
Statistically, return flights from Koh Samui to London departing on a monday are cheaper than on other days of the week. By choosing a monday for your return date, you will save an average of $15. Conversely, departing from Koh Samui on a saturday may cost you an additional $20.
Top prices London-Koh Samui
| Round trip | Dates | Price | |
|---|---|---|---|
| London → Koh Samui | 07-05 to 17-05-2025 | $ 669 | layover flight with Saudia |
| London → Koh Samui | 10-05 to 18-05-2025 | $ 717 | layover flight with Saudia |
| London → Koh Samui | 11-05 to 27-05-2025 | $ 684 | layover flight with Ryanair |
| London → Koh Samui | 12-05 to 21-05-2025 | $ 739 | layover flight with China Eastern |
| London → Koh Samui | 19-05 to 27-05-2025 | $ 731 | layover flight with China Eastern |
| London → Koh Samui | 01-06 to 08-06-2025 | $ 751 | layover flight with EasyJet |
| London → Koh Samui | 02-06 to 11-06-2025 | $ 729 | layover flight with China Eastern |
| London → Koh Samui | 12-06 to 27-06-2025 | $ 738 | layover flight with Saudia |
| London → Koh Samui | 02-09 to 15-09-2025 | $ 716 | layover flight with Ryanair |
| London → Koh Samui | 09-09 to 22-09-2025 | $ 715 | layover flight with Ryanair |
When to book your flight London - Koh Samui to get the cheapest price?
Statistically, you will make the biggest savings by buying your plane ticket between 2 to 3 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 London-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 London to Koh Samui, it is recommended to buy it 2 to 3 months before departure (it is then on average 1083 $, which is a saving of 43 $ 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 (54 $ more than the average price).
Depending on the departure month
The best time to buy your London 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: 7 to 8 months before departure (average price: 1050 $) Other interesting period(s): 4 to 5 months ($ 1121), 5 to 6 months ($ 1116), 6 to 7 months ($ 1113), 8 to 9 months ($ 1061), 9 to 10 months ($ 1125), 10 to 11 months ($ 1125) |
| February | Best time: 9 to 10 months before departure (average price: 992 $) Other interesting period(s): 1 to 2 months ($ 1101), 2 to 3 months ($ 1134), 4 to 5 months ($ 1134), 6 to 7 months ($ 1060), 8 to 9 months ($ 1038), 10 to 11 months ($ 1128) |
| March | Best time: 6 to 7 months before departure (average price: 961 $) Other interesting period(s): 1 to 2 months ($ 969), 2 to 3 months ($ 976), 3 to 4 months ($ 991), 5 to 6 months ($ 970), 7 to 8 months ($ 979), 9 to 10 months ($ 973), 10 to 11 months ($ 968) |
| April | Best time: 11 to 12 months before departure (average price: 1110 $) Other interesting period(s): 0 to 1 month ($ 1156), 7 to 8 months ($ 1137), 8 to 9 months ($ 1119), 9 to 10 months ($ 1161), 10 to 11 months ($ 1128) |
| May | Best time: 2 to 3 months before departure (average price: 913 $) Other interesting period(s): 0 to 1 month ($ 961), 1 to 2 months ($ 954), 4 to 5 months ($ 984), 7 to 8 months ($ 977), 8 to 9 months ($ 965), 9 to 10 months ($ 942) |
| June | Best time: 1 to 2 months before departure (average price: 898 $) Other interesting period(s): 0 to 1 month ($ 953), 2 to 3 months ($ 974), 3 to 4 months ($ 970), 4 to 5 months ($ 978), 5 to 6 months ($ 987) |
| July | Best time: 1 to 2 months before departure (average price: 1149 $) Other interesting period(s): 0 to 1 month ($ 1216), 2 to 3 months ($ 1247), 4 to 5 months ($ 1277), 9 to 10 months ($ 1258), 10 to 11 months ($ 1158), 11 to 12 months ($ 1183) |
| August | Best time: 1 to 2 months before departure (average price: 1181 $) Other interesting period(s): 0 to 1 month ($ 1242), 2 to 3 months ($ 1311), 3 to 4 months ($ 1362), 7 to 8 months ($ 1404), 8 to 9 months ($ 1419), 10 to 11 months ($ 1380), 11 to 12 months ($ 1221) |
| September | Best time: 4 to 5 months before departure (average price: 906 $) Other interesting period(s): 0 to 1 month ($ 957), 1 to 2 months ($ 993), 2 to 3 months ($ 958), 3 to 4 months ($ 950), 5 to 6 months ($ 978), 6 to 7 months ($ 993), 7 to 8 months ($ 999), 8 to 9 months ($ 977) |
| October | Best time: 3 to 4 months before departure (average price: 890 $) Other interesting period(s): 1 to 2 months ($ 940), 2 to 3 months ($ 910), 4 to 5 months ($ 953), 5 to 6 months ($ 932), 6 to 7 months ($ 1013) |
| November | Best time: 3 to 4 months before departure (average price: 890 $) Other interesting period(s): 1 to 2 months ($ 966), 2 to 3 months ($ 907), 4 to 5 months ($ 933), 5 to 6 months ($ 931), 6 to 7 months ($ 929), 7 to 8 months ($ 918), 8 to 9 months ($ 948) |
| December | Best time: 4 to 5 months before departure (average price: 1192 $) Other interesting period(s): 1 to 2 months ($ 1278), 2 to 3 months ($ 1248), 3 to 4 months ($ 1209), 5 to 6 months ($ 1192), 6 to 7 months ($ 1231), 7 to 8 months ($ 1266), 8 to 9 months ($ 1283), 9 to 10 months ($ 1269) |
What day of the week should I book my flight ticket?
Data analysis:
Statistically, sunday is the day when plane tickets for London->Koh Samui are the cheapest. So, by buying your plane ticket on a sunday, you will save $18. Conversely, by buying it on a monday, you may end up paying $29 more.
London 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 | Our opinion | |
|---|---|---|---|
| April 2025 | $ 1195 $962 to $1344 | fair price | Find a flight |
| May 2025 | $ 982 $669 to $4286 | fair price | Find a flight |
| June 2025 | $ 806 $722 to $1182 | very good price | Find a flight |
| July 2025 | $ 1110 $941 to $1328 | very good price | Find a flight |
| August 2025 | $ 1494 $1080 to $4891 | high price | Find a flight |
| September 2025 | $ 856 $711 to $1128 | very good price | Find a flight |
| October 2025 | $ 1058 $812 to $4091 | high price | Find a flight |
| November 2025 | $ 1093 $816 to $5412 | high price | Find a flight |
| December 2025 | $ 1003 $824 to $1419 | very good price | Find a flight |
| January 2026 | $ 1195 $810 to $6120 | high price | Find a flight |
| February 2026 | $ 964 $805 to $1231 | very good price | Find a flight |
| March 2026 | $ 931 $751 to $1279 | very good price | Find a flight |
Data analysis:
Compared to the average price, june, july, september, december, february and march are cheaper to travel to Koh Samui. So it may be interesting to book now to leave during these months!