Typical price difference
+32%฿9,469 here compared with ฿7,178
One-way and roundtrip flights from Bangkok27°Hot
Flights to Ko Samui in September 2026
🏖️Beach🏝️Island💑Romantic
DepartureTue, Sep 15± 15 days
One way from ฿3,081 · Roundtrip from ฿6,430.Top deals
Flights and prices
How much are flights from Bangkok to Ko Samui?
Planning a trip to Ko Samui? Compare dates, airlines, flight times and direct options from Bangkok. 21 one-way fares from ฿3,081 · 399 roundtrips from ฿6,430. These results are for september 2026.
- One way from
- ฿3,081
- 21 outbound-only options
- Roundtrip from
- ฿6,430
- 399 complete trips
- Typical roundtrip
- ฿9,469
- Half cost less, half cost more
- Flight options
- 399
- Roundtrips available
Saved searches
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Roundtrip deals
399 fares · from ฿6,430
Outbound and return flights together in one total fare.
Trip datesFlight itineraryTotal fareView
Sep 27 → Oct 1619 nights
Roundtrip
- Depart
- Sep 27
- Return
- Oct 16
Out15:00BKK → USM16:301h 30m · Direct1h 30m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound15:00BKK16:30USM1h 30mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated by
Bangkok Airways
Bangkok Airways฿6,430
฿7,600-15%
Save ฿1,170
Bangkok AirwaysRoundtrip total฿6,430฿7,600−15%Save ฿1,170View deal
Cheapest of September 2026
Sep 27 → Oct 1720 nights
Roundtrip
- Depart
- Sep 27
- Return
- Oct 17
Out15:00BKK → USM16:301h 30m · Direct1h 30m · Direct
Return14:35USM → BKK15:501h 15m · Direct1h 15m · Direct
Outbound15:00BKK16:30USM1h 30mDirect
Return14:35USM15:50BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,431
฿7,600-15%
Save ฿1,169
Bangkok AirwaysRoundtrip total฿6,431฿7,600−15%Save ฿1,169View deal
Cheapest of September 2026
Sep 27 → Oct 1821 nights
Roundtrip
- Depart
- Sep 27
- Return
- Oct 18
Out15:00BKK → USM16:301h 30m · Direct1h 30m · Direct
Return15:30USM → BKK16:551h 25m · Direct1h 25m · Direct
Outbound15:00BKK16:30USM1h 30mDirect
Return15:30USM16:55BKK1h 25mDirect
Operated byBangkok Airways
Bangkok Airways฿6,441
฿7,600-15%
Save ฿1,159
Bangkok AirwaysRoundtrip total฿6,441฿7,600−15%Save ฿1,159View deal
Cheapest of September 2026
Sep 26 → Oct 1620 nights
Roundtrip
- Depart
- Sep 26
- Return
- Oct 16
Out16:00BKK → USM17:051h 5m · Direct1h 5m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound16:00BKK17:05USM1h 5mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿6,734
฿7,600-11%
Save ฿866
Bangkok AirwaysRoundtrip total฿6,734฿7,600−11%Save ฿866View deal
Lowest 10% of September 2026
Sep 29 → Oct 1617 nights
Roundtrip
- Depart
- Sep 29
- Return
- Oct 16
Out20:05BKK → USM21:351h 30m · Direct1h 30m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿6,734
฿7,600-11%
Save ฿866
Bangkok AirwaysRoundtrip total฿6,734฿7,600−11%Save ฿866View deal
Lowest 10% of September 2026
Sep 29 → Oct 2021 nights
Roundtrip
- Depart
- Sep 29
- Return
- Oct 20
Out20:05BKK → USM21:351h 30m · Direct1h 30m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿6,734
฿7,600-11%
Save ฿866
Bangkok AirwaysRoundtrip total฿6,734฿7,600−11%Save ฿866View deal
Lowest 10% of September 2026
Sep 26 → Oct 1721 nights
Roundtrip
- Depart
- Sep 26
- Return
- Oct 17
Out16:00BKK → USM17:051h 5m · Direct1h 5m · Direct
Return14:35USM → BKK15:501h 15m · Direct1h 15m · Direct
Outbound16:00BKK17:05USM1h 5mDirect
Return14:35USM15:50BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,735
฿7,600-11%
Save ฿865
Bangkok AirwaysRoundtrip total฿6,735฿7,600−11%Save ฿865View deal
Lowest 10% of September 2026
Sep 29 → Oct 1920 nights
Roundtrip
- Depart
- Sep 29
- Return
- Oct 19
Out20:05BKK → USM21:351h 30m · Direct1h 30m · Direct
Return15:25USM → BKK16:401h 15m · Direct1h 15m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Return15:25USM16:40BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,735
฿7,600-11%
Save ฿865
Bangkok AirwaysRoundtrip total฿6,735฿7,600−11%Save ฿865View deal
Lowest 10% of September 2026
Sep 29 → Oct 1718 nights
Roundtrip
- Depart
- Sep 29
- Return
- Oct 17
Out20:05BKK → USM21:351h 30m · Direct1h 30m · Direct
Return15:50USM → BKK17:051h 15m · Direct1h 15m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Return15:50USM17:05BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,735
฿7,600-11%
Save ฿865
Bangkok AirwaysRoundtrip total฿6,735฿7,600−11%Save ฿865View deal
Lowest 10% of September 2026
Sep 29 → Oct 1819 nights
Roundtrip
- Depart
- Sep 29
- Return
- Oct 18
Out20:05BKK → USM21:351h 30m · Direct1h 30m · Direct
Return15:30USM → BKK16:551h 25m · Direct1h 25m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Return15:30USM16:55BKK1h 25mDirect
Operated byBangkok Airways
Bangkok Airways฿6,745
฿7,600-11%
Save ฿855
Bangkok AirwaysRoundtrip total฿6,745฿7,600−11%Save ฿855View deal
Lowest 10% of September 2026
Sep 28 → Oct 1618 nights
Roundtrip
- Depart
- Sep 28
- Return
- Oct 16
Out16:40BKK → USM17:451h 5m · Direct1h 5m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound16:40BKK17:45USM1h 5mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿6,858
฿7,600-10%
Save ฿742
Bangkok AirwaysRoundtrip total฿6,858฿7,600−10%Save ฿742View deal
Lowest 10% of September 2026
9 seats leftSep 28 → Oct 1921 nights
Roundtrip
- Depart
- Sep 28
- Return
- Oct 19
Out16:00BKK → USM17:051h 5m · Direct1h 5m · Direct
Return11:45USM → BKK13:001h 15m · Direct1h 15m · Direct
Outbound16:00BKK17:05USM1h 5mDirect
Return11:45USM13:00BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,860
฿7,600-10%
Save ฿740
Bangkok AirwaysRoundtrip total฿6,860฿7,600−10%Save ฿740View deal
Lowest 10% of September 2026
4 seats leftSep 28 → Oct 1719 nights
Roundtrip
- Depart
- Sep 28
- Return
- Oct 17
Out16:40BKK → USM17:451h 5m · Direct1h 5m · Direct
Return14:35USM → BKK15:501h 15m · Direct1h 15m · Direct
Outbound16:40BKK17:45USM1h 5mDirect
Return14:35USM15:50BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,860
฿7,600-10%
Save ฿740
Bangkok AirwaysRoundtrip total฿6,860฿7,600−10%Save ฿740View deal
Lowest 10% of September 2026
9 seats leftSep 28 → Oct 1820 nights
Roundtrip
- Depart
- Sep 28
- Return
- Oct 18
Out16:40BKK → USM17:451h 5m · Direct1h 5m · Direct
Return15:25USM → BKK16:401h 15m · Direct1h 15m · Direct
Outbound16:40BKK17:45USM1h 5mDirect
Return15:25USM16:40BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿6,869
฿7,600-10%
Save ฿731
Bangkok AirwaysRoundtrip total฿6,869฿7,600−10%Save ฿731View deal
9 seats left
Sep 30 → Oct 1616 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 16
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿7,038
฿7,600-7%
Save ฿562
Bangkok AirwaysRoundtrip total฿7,038฿7,600−7%Save ฿562View deal
Sep 30 → Oct 2020 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 20
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return06:55USM → DMK08:251h 30m · Direct1h 30m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return06:55USM08:25DMK1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿7,038
฿7,600-7%
Save ฿562
Bangkok AirwaysRoundtrip total฿7,038฿7,600−7%Save ฿562View deal
Sep 30 → Oct 2121 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 21
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return09:15USM → BKK10:301h 15m · Direct1h 15m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return09:15USM10:30BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿7,038
฿7,600-7%
Save ฿562
Bangkok AirwaysRoundtrip total฿7,038฿7,600−7%Save ฿562View deal
Sep 30 → Oct 1919 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 19
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return11:45USM → BKK13:001h 15m · Direct1h 15m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return11:45USM13:00BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿7,039
฿7,600-7%
Save ฿561
Bangkok AirwaysRoundtrip total฿7,039฿7,600−7%Save ฿561View deal
Sep 30 → Oct 1717 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 17
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return15:25USM → BKK16:401h 15m · Direct1h 15m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return15:25USM16:40BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿7,039
฿7,600-7%
Save ฿561
Bangkok AirwaysRoundtrip total฿7,039฿7,600−7%Save ฿561View deal
Sep 30 → Oct 1818 nights
Roundtrip
- Depart
- Sep 30
- Return
- Oct 18
Out07:30BKK → USM08:351h 5m · Direct1h 5m · Direct
Return15:25USM → BKK16:401h 15m · Direct1h 15m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Return15:25USM16:40BKK1h 15mDirect
Operated byBangkok Airways
Bangkok Airways฿7,049
฿7,600-7%
Save ฿551
Bangkok AirwaysRoundtrip total฿7,049฿7,600−7%Save ฿551View deal
One-way deals
21 fares · from ฿3,081
Outbound fare only — add a return separately if you need one.
Trip datesFlight itineraryTotal fareView
tue · Sep 22One way
Departuretue · Sep 22
One way2026
09:05DMK → USM10:351h 30m · Direct
Outbound09:05DMK10:35USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿3,081
฿3,477-11%
฿396 below average
Bangkok AirwaysOne-way fare฿3,081฿3,477−11%Save ฿396View deal
Cheapest of September 2026
sun · Sep 27One way
Departuresun · Sep 27
One way2026
15:00BKK → USM16:301h 30m · Direct
Outbound15:00BKK16:30USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿3,894
Bangkok AirwaysCurrent fare
One-way fare฿3,894Current fareView deal
sun · Sep 13One way
Departuresun · Sep 13
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿3,969
Bangkok AirwaysCurrent fare
One-way fare฿3,969Current fareView deal
mon · Sep 28One way
Departuremon · Sep 28
One way2026
16:00BKK → USM17:051h 5m · Direct
Outbound16:00BKK17:05USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,198
Bangkok AirwaysCurrent fare
One-way fare฿4,198Current fareView deal
sat · Sep 26One way
Departuresat · Sep 26
One way2026
16:00BKK → USM17:051h 5m · Direct
Outbound16:00BKK17:05USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,198
Bangkok AirwaysCurrent fare
One-way fare฿4,198Current fareView deal
tue · Sep 29One way
Departuretue · Sep 29
One way2026
20:05BKK → USM21:351h 30m · Direct
Outbound20:05BKK21:35USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,198
Bangkok AirwaysCurrent fare
One-way fare฿4,198Current fareView deal
mon · Sep 21One way
Departuremon · Sep 21
One way2026
18:15DMK → USM19:451h 30m · Direct
Outbound18:15DMK19:45USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
sun · Sep 20One way
Departuresun · Sep 20
One way2026
09:05DMK → USM10:351h 30m · Direct
Outbound09:05DMK10:35USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
thu · Sep 10One way
Departurethu · Sep 10
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
tue · Sep 15One way
Departuretue · Sep 15
One way2026
18:15DMK → USM19:451h 30m · Direct
Outbound18:15DMK19:45USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
wed · Sep 16One way
Departurewed · Sep 16
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
wed · Sep 23One way
Departurewed · Sep 23
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,500
Bangkok AirwaysCurrent fare
One-way fare฿4,500Current fareView deal
sat · Sep 19One way
Departuresat · Sep 19
One way2026
15:00BKK → USM16:301h 30m · Direct
Outbound15:00BKK16:30USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,502
Bangkok AirwaysCurrent fare
One-way fare฿4,502Current fareView deal
wed · Sep 30One way
Departurewed · Sep 30
One way2026
07:30BKK → USM08:351h 5m · Direct
Outbound07:30BKK08:35USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿4,502
Bangkok AirwaysCurrent fare
One-way fare฿4,502Current fareView deal
mon · Sep 14One way
Departuremon · Sep 14
One way2026
19:20BKK → USM20:501h 30m · Direct
Outbound19:20BKK20:50USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,569
Bangkok AirwaysCurrent fare
One-way fare฿4,569Current fareView deal
fri · Sep 11One way
Departurefri · Sep 11
One way2026
18:15DMK → USM19:451h 30m · Direct
Outbound18:15DMK19:45USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,855
Bangkok AirwaysCurrent fare
One-way fare฿4,855Current fareView deal
thu · Sep 17One way
Departurethu · Sep 17
One way2026
09:05DMK → USM10:351h 30m · Direct
Outbound09:05DMK10:35USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,855
Bangkok AirwaysCurrent fare
One-way fare฿4,855Current fareView deal
thu · Sep 24One way
Departurethu · Sep 24
One way2026
09:05DMK → USM10:351h 30m · Direct
Outbound09:05DMK10:35USM1h 30mDirect
Operated byBangkok Airways
Bangkok Airways฿4,855
Bangkok AirwaysCurrent fare
One-way fare฿4,855Current fareView deal
fri · Sep 18One way
Departurefri · Sep 18
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿5,159
Bangkok AirwaysCurrent fare
One-way fare฿5,159Current fareView deal
sat · Sep 12One way
Departuresat · Sep 12
One way2026
07:10BKK → USM08:151h 5m · Direct
Outbound07:10BKK08:15USM1h 5mDirect
Operated byBangkok Airways
Bangkok Airways฿5,159
Bangkok AirwaysCurrent fare
One-way fare฿5,159Current fareView deal
Plan with confidence
Find the trip that fits
Compare prices, dates, airlines and travel time. Then choose the deal that feels right.
See the difference
September 2026 at a glance
Compare price, non-stop choice and travel time with other Ko Samui options.
Non-stop options
99%-1 points compared with other flights
Typical flight time
1h 5m0h 5m shorter than the comparison
Roundtrip options
399Trips ready to compare
Typical prices
What do Ko Samui roundtrips usually cost?
This distribution uses roundtrip prices only; one-way prices remain in their own labeled summary.
Lowest฿6,430
Typical low฿9,109
Typical฿9,469
Typical high฿9,823
Flexible dates
Cheapest departure dates for Ko Samui
Compare nearby dates to see where the better prices are. Always check the final price before booking.
฿10,123
Sep 10
฿9,819
Sep 11
฿9,819
Sep 12
฿8,933
Sep 13
฿9,464
Sep 14
฿9,469
Sep 15
฿9,538
Sep 16
฿9,893
Sep 17
฿10,197
Sep 18
฿9,540
Sep 19
฿9,597
Sep 20
฿9,667
Sep 21
฿8,096
Sep 22
฿9,538
Sep 23
฿9,825
Sep 24
฿10,125
Sep 25
฿9,162
Sep 26
฿8,858
Sep 27
฿8,931
Sep 28
฿8,806
Sep 29
฿9,110
Sep 30
Flexible timing
Compare Ko Samui by travel month
Open a month to compare its dates, prices and available flights.
Weather through the year
Typical temperatures in Ko Samui
Usual monthly temperatures can help you choose when to go. They are not a live forecast.
27°Jan
27°Feb
28°Mar
29°Apr
29°May
28°Jun
28°Jul
28°Aug
27°Sep
27°Oct
27°Nov
27°Dec
Useful trip facts
What to know about Ko Samui
- Country
- Thailand
- Arrival code
- USM
- Typical annual temperature
- 28°C
- Usual temperature, not a forecast
- Trip styles
- Beach, Island, Romantic
- Bangkok departure airports
- BKK, DMK
- Airports represented in the current fare results
- Arrival airports
- USM
- Airports represented in the current fare results
- Typical outbound from Bangkok
- 1h 5m
- Typical stay
- 12 nights
Why go
Why travelers consider Ko Samui
Thailand's coconut island paradise. Luxury resorts, palm-fringed beaches, and a laid-back vibe on the Gulf of Thailand's largest resort island.
Explore related searches
Common questions about Ko Samui
What is the lowest available one-way fare for Ko Samui?
The lowest available one-way fare is ฿3,081. It is compared only with other one-way fares.
What is the lowest available roundtrip fare for Ko Samui?
The lowest available roundtrip fare is ฿6,430. Check the dates, baggage and final total before booking.
What is a typical fare for Ko Samui?
A typical fare is ฿9,469. Many available options sit between ฿9,109 and ฿9,823.
How many choices are available for Ko Samui?
Choose from 399 roundtrip flights across 1 destination in 1 country.
Are direct flights available for Ko Samui?
397 roundtrip flights are non-stop both ways. That is 99% of the current choices.
Which month has the lowest fares for Ko Samui?
Sep 2026 has the lowest available roundtrip fare, from ฿6,430.
What is the cheapest flight from Bangkok to Ko Samui?
The lowest currently observed flight from Bangkok to Ko Samui is ฿6,430. Confirm the final itinerary total and availability before booking.
When is the best time to fly from Bangkok to Ko Samui?
Based on current prices, September 2026 offers some of the best deals from Bangkok to Ko Samui. Check the month-by-month breakdown on this page for the cheapest times to fly.