Istanbul to Koh Samui flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Istanbul to Koh Samui is €350 (checked on 10 Nov 2026).
Your next trip, last seen at €350
Lowest observedWhen to fly
Explore datesMore dates worth a look
Find the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- 7 Feb€451
- 8 Feb€473
- 14 Feb€412
- 15 Feb€350
- Lowest observed
- €350, departing 15 Feb 2027 (Last checked: 10 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 13Check live prices for this route
- Round trip
- €671, departing 11 May 2027, back 25 May 2027 (Last checked: 13 Nov 2026)
- Airlines seen
- AirAsia X, Gulf Air, IndiGo, Qatar Airways, Royal Jordanian, Sichuan Airlines, Thai Airways, Turkish Airlines, Turkmenistan Airlines (9)
- Typical journey time
- 16h 50m
About this route
Explore the fares we observed from Istanbul to Koh Samui. Prices move often, so pick your dates to see the latest options.
- Route distance
- 7,728 km
- Typical journey time
- 16h 50m
- Airlines seen
- AirAsia X, Gulf Air, IndiGo, Qatar Airways, Royal Jordanian, Sichuan Airlines, Thai Airways, Turkish Airlines, Turkmenistan Airlines (9)
- Seen on fares with a connection
- Gulf Air, Thai Airways, AirAsia X, Turkish Airlines, Qatar Airways, IndiGo, Royal Jordanian (7)
- Alternative airports
- SAW
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Sabiha Gökçen Airport (SAW) → Istanbul, city gazetteer reference point (41.0082, 28.9784): ≈ 30 km.
- Istanbul Airport (IST) → Istanbul, city gazetteer reference point (41.0082, 28.9784): ≈ 35 km.
- Samui International Airport (USM) → Koh Samui, city gazetteer reference point (9.5553, 100.0628): ≈ 1 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest departure day we saw in February 2027 from Istanbul to Koh Samui: 15 Feb 2027, €350 (checked 10 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €388 | 8 |
| February 2027 | €350 | 4 |
Lowest fare by day of the week
Cheapest Monday departure we saw from Istanbul to Koh Samui: 15 Feb 2027, €350 (checked 10 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €350 | 3 |
| Thursday | €405 | 3 |
| Sunday | €388 | 3 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Observed fares by departure date
| Departure | Fare | Seen on |
|---|---|---|
| €436 | 11 Nov 2026 | |
| €447 | 11 Nov 2026 | |
| €439 | 11 Nov 2026 | |
| €430 | 10 Nov 2026 | |
| €470 | 11 Nov 2026 | |
| €393 | 6 Nov 2026 | |
| €405 | 10 Nov 2026 | |
| €455 | 12 Nov 2026 | |
| €388 | 8 Nov 2026 | |
| €1,706 | 13 Nov 2026 | |
| €451 | 9 Nov 2026 | |
| €473 | 11 Nov 2026 | |
| €412 | 10 Nov 2026 | |
| €350 | 10 Nov 2026 | |
| €434 | 6 Nov 2026 | |
| €429 | 6 Nov 2026 | |
| €437 | 6 Nov 2026 |
One-way fares. Each row is one price we saw for that departure day on the date shown, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Istanbul to Koh Samui by days until departure (61 days or more): €350 (checked 10 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €430 | 4 |
| 8 to 30 days | €388 | 4 |
| 61 days or more | €350 | 4 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Istanbul to Koh Samui?
The lowest fare Routavio has observed is €350, found on 10 Nov 2026.
Are there direct flights from Istanbul to Koh Samui?
Our data holds no non-stop flight from Istanbul to Koh Samui. The fares on this page include at least one stop.
Which airlines fly from Istanbul to Koh Samui?
Routavio has seen these carriers on the route: AirAsia X, Gulf Air, IndiGo, Qatar Airways, Royal Jordanian, Sichuan Airlines, Thai Airways, Turkish Airlines, Turkmenistan Airlines (9).
How many of the observed Istanbul to Koh Samui fares were non-stop?
None of the 38 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
How much is a round trip from Istanbul to Koh Samui?
Cheapest round trip: €671, departing 11 May 2027, back 25 May 2027 (checked 13 Nov 2026).
When is the cheapest month to fly from Istanbul to Koh Samui?
Cheapest departure day we saw in February 2027 from Istanbul to Koh Samui: 15 Feb 2027, €350 (checked 10 Nov 2026).
Which day of the week is cheapest from Istanbul to Koh Samui?
Cheapest Monday departure we saw from Istanbul to Koh Samui: 15 Feb 2027, €350 (checked 10 Nov 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
Keep exploring
Similar routes
More routes from Istanbul
Show all 36 routes →Show fewer ↑
More routes to Koh Samui
Show all 36 routes →Show fewer ↑
Recently observed fares. Prices may change.