Cheap flights from Da Nang to Koh Samui from $119 DAD → USM
Da Nang International Airport (DAD) → Koh Samui Airport (USM)
The cheapest return found recently is $526 with THAI Airways, 14 Feb 2027 – 21 Feb 2027, found 2 days ago. The cheapest one-way found recently is $119 with Thai Vietjet Air, 13 Nov, found 3 days ago.
- Cheapest one-way found recently
- $119, found 3 days ago
- Cheapest return found recently
- $526, 14 Feb 2027 to 21 Feb 2027
- Usual return price
- $455 to $488
- Cheapest month to fly
- November 2026, return fares from $377 found in the last 7 days
Return
The cheapest return fare on each of 6 departure dates is usually $455 to $488.
Cheapest return found recently
$526
14 Feb 2027 – 21 Feb 2027 · THAI Airways
Da Nang International Airport (DAD) → Koh Samui Airport (USM)
Leaves 10:45 a.m. · Return leaves 11:35 a.m. · 16 h 10 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$526 14 Feb 2027 – 21 Feb 2027found 2 days agoSee prices for these dates
$377 28 Nov – 23 Decfound 3 days agoSee prices for these dates
What have prices looked like?
Over 48 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $317 to $436.
At $526, the cheapest return found recently is above that range.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 6 departure dates from 28 Nov to 14 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 7-night return fares leaving within 3 days of 14 Feb 2027 to compare.
Every date we hold
17 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 28 Nov – 23 Dec | $377 | Thai Vietjet Air | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 14 Dec – 24 Dec | $485 | Scoot | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 15 Dec – 24 Dec | $489 | Thai Vietjet Air | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 16 Dec – 24 Dec | $466 | Thai AirAsia | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 20 Dec – 25 Dec | $451 | Emirates | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 14 Feb 2027 – 21 Feb 2027 | $526 | THAI Airways | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $377.
Airlines on the cheapest dates: Thai Vietjet Air, Scoot, Thai AirAsia, Emirates, THAI Airways.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$119
13 Nov · Thai Vietjet Air
Da Nang International Airport (DAD) → Koh Samui Airport (USM)
Leaves 6:10 p.m. · 14 h trip
stops unknown
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$119 13 Novfound 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 7 Oct to 10 Nov, the cheapest one-way we saw each day was $117 to $212.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 13 Nov, and it is not cheaper.
Every date we hold
3 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov | $119 | Thai Vietjet Air | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | stops unknown | found 3 days ago | Open this trip |
| 14 Nov | $123 | Thai Vietjet Air | Da Nang International Airport (DAD) → Koh Samui Airport (USM) | stops unknown | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Thai Vietjet Air.
Premium cabin fares from Da Nang to Koh Samui
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 14 Feb 2027 – 21 Feb 2027 in another cabin: Premium economy · Business · First
Today's prices for 13 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Da Nang to Koh Samui?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (48 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $317 | $317 | Cheapest seen | 14 |
| 30–59 days | $395 | $333 | +25% | 30 |
| 60–89 days | $444 | $436 | +40% | 15 |
| 90–179 days | $457 | $436 | +44% | 26 |
| 180+ days | $358 | $347 | +13% | 16 |
One-way
Not enough history yet: in 25 days of one-way prices, 7 Oct to 10 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 14 Feb 2027 – 21 Feb 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Da Nang to Koh Samui?
The cheapest return found recently is $526 with THAI Airways, 14 Feb 2027 to 21 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $377 with Thai Vietjet Air, 28 Nov to 23 Dec, found 3 days ago. The cheapest return fare on each of 6 departure dates is usually $455 to $488.
How much is a one-way flight from Da Nang to Koh Samui?
The cheapest one-way found recently is $119 with Thai Vietjet Air, 13 Nov, found 3 days ago.
What is the cheapest month to fly from Da Nang to Koh Samui?
November 2026 is the cheapest month for a return, from $377, 28 Nov to 23 Dec, found 3 days ago.
How far ahead should I book a flight from Da Nang to Koh Samui?
In 48 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.
Which airlines have the cheapest flights from Da Nang to Koh Samui?
Between 28 Nov and 14 Feb 2027, Thai Vietjet Air has the cheapest return on 2 of the 6 departure dates we hold, Scoot on 1 and Thai AirAsia on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work