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Low Price Flights from Bangkok to Koh Samui

Explore the cheapest flights from Bangkok to Koh Samui in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at AU$ 112, and direct return tickets start at AU$ 238.

      • Cheapest nonstop
        BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Fri, Sep 4 | Bangkok Airways
        USM 07:50
        1h 15m
        Direct
        BKK 09:05
        Koh Samui - Bangkok | Mon, Sep 7 | Bangkok Airways
        AU$ 238 AU$ 386
        38% off
        38% off
        AU$ 386 AU$ 238
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Wed, Sep 9 | Bangkok Airways
        USM 07:50
        1h 15m
        Direct
        BKK 09:05
        Koh Samui - Bangkok | Tue, Sep 15 | Bangkok Airways
        AU$ 238 AU$ 386
        38% off
        38% off
        AU$ 386 AU$ 238
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Tue, Sep 8 | Bangkok Airways
        USM 07:50
        1h 15m
        Direct
        BKK 09:05
        Koh Samui - Bangkok | Tue, Sep 15 | Bangkok Airways
        AU$ 238 AU$ 386
        38% off
        38% off
        AU$ 386 AU$ 238
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Thu, Sep 10 | Bangkok Airways
        USM 06:00
        1h 15m
        Direct
        BKK 07:15
        Koh Samui - Bangkok | Thu, Sep 17 | Bangkok Airways
        AU$ 238
        38% off
        AU$ 386 AU$ 238
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Mon, Sep 7 | Bangkok Airways
        USM 06:00
        1h 15m
        Direct
        BKK 07:15
        Koh Samui - Bangkok | Sun, Sep 13 | Bangkok Airways
        AU$ 273
        28% off
        AU$ 386 AU$ 273
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Wed, Sep 2 | Bangkok Airways
        USM 15:25
        8h 5m
        1 stop
        BKK 23:30
        Koh Samui - Bangkok | Fri, Sep 4 | Bangkok Airways
        AU$ 271
        30% off
        AU$ 386 AU$ 271
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Thu, Sep 3 | Bangkok Airways
        USM 11:25
        12h 5m
        1 stop
        BKK 23:30
        Koh Samui - Bangkok | Thu, Sep 10 | Bangkok Airways
        AU$ 272
        30% off
        AU$ 386 AU$ 272
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Tue, Sep 1 | Bangkok Airways
        USM 09:15
        14h 15m
        1 stop
        BKK 23:30
        Koh Samui - Bangkok | Thu, Sep 3 | Bangkok Airways
        AU$ 274
        28% off
        AU$ 386 AU$ 274
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Sun, Sep 6 | Bangkok Airways
        USM 19:00
        14h 10m
        1 stop
        BKK 09:10
        Koh Samui - Bangkok | Tue, Sep 8 | Bangkok Airways
        AU$ 274
        28% off
        AU$ 386 AU$ 274
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Mon, Aug 31 | Bangkok Airways
        USM 19:00
        4h 30m
        1 stop
        BKK 23:30
        Koh Samui - Bangkok | Mon, Sep 7 | Bangkok Airways
        AU$ 274
        28% off
        AU$ 386 AU$ 274
      • BKK 13:00
        17h 25m
        1 stop
        USM 14:00
        Bangkok - Koh Samui | Tue, Jul 14 | Normal Airline
        USM 15:00
        6h
        Direct
        BKK 16:00
        Koh Samui - Bangkok | Thu, Jul 16 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Fri, Sep 4 | Bangkok Airways
        AU$ 112 AU$ 170
        34% off
        34% off
        AU$ 170 AU$ 112
      • BKK 20:05
        1h 30m
        Direct
        USM 21:35
        Bangkok - Koh Samui | Thu, Sep 3 | Bangkok Airways
        AU$ 112 AU$ 170
        34% off
        34% off
        AU$ 170 AU$ 112
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Tue, Sep 1 | Bangkok Airways
        AU$ 116 AU$ 170
        32% off
        32% off
        AU$ 170 AU$ 116
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Tue, Sep 8 | Bangkok Airways
        AU$ 116
        32% off
        AU$ 170 AU$ 116
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Mon, Sep 7 | Bangkok Airways
        AU$ 117
        31% off
        AU$ 170 AU$ 117
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Wed, Sep 9 | Bangkok Airways
        AU$ 118
        31% off
        AU$ 170 AU$ 118
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Wed, Sep 2 | Bangkok Airways
        AU$ 118
        31% off
        AU$ 170 AU$ 118
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Sun, Sep 6 | Bangkok Airways
        AU$ 119
        30% off
        AU$ 170 AU$ 119
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Thu, Sep 10 | Bangkok Airways
        AU$ 120
        28% off
        AU$ 170 AU$ 120
      • BKK 06:05
        1h 5m
        Direct
        USM 07:10
        Bangkok - Koh Samui | Mon, Aug 31 | Bangkok Airways
        AU$ 120
        28% off
        AU$ 170 AU$ 120
      • BKK 13:00
        17h 25m
        1 stop
        USM 14:00
        Bangkok - Koh Samui | Tue, Jul 14 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Bangkok to Koh Samui are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Find Cheapest Airlines Flying from Bangkok to Koh Samui

Choose from 1 carriers that fly from Bangkok to Koh Samui, including Bangkok Airways, Enjoy the cheapest tickets on this route with Bangkok Airways.
Bangkok Airways logo Bangkok Airways
Airlines are determined based on actual purchased flight tickets from Bangkok to Koh Samui according to previous 12 months data from Trip.com.

Bangkok to Koh Samui Flight Details

The distance between Bangkok and Koh Samui is approximately 467.57km. It takes around 1 hour 11 minutes on average to fly from Bangkok to Koh Samui. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight priceAU$ 112
Cheapest return ticket priceAU$ 238
Off-season for travelOctober
Peak season for travelJuly
Flight distance467.57km
Average flight time1 hour 11 minutes
Popular airlineBangkok Airways
Flight statistics for the Bangkok–Koh Samui route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Bangkok to Koh Samui

What is the cheapest month for one-way flights from Bangkok to Koh Samui?

Average price of one-way flights from Bangkok to Koh Samui purchased by Trip.com users by month over the past 12 months.

According to Trip.com's data, the cheapest month for flights from Bangkok to Koh Samui is May, with an average price of AU$ 106. Conversely, the most expensive month is typically July, with an average price of up to AU$ 193.

AU$ 193
AU$ 150
AU$ 106
AU$ 63
    Cheapest
  • AU$ 193
    Jul
  • AU$ 148
    Aug
  • AU$ 133
    Sep
  • AU$ 111
    Oct
  • AU$ 118
    Nov
  • AU$ 141
    Dec
  • AU$ 130
    Jan
  • AU$ 159
    Feb
  • AU$ 130
    Mar
  • AU$ 110
    Apr
  • AU$ 106
    May
  • AU$ 116
    Jun

What is the cheapest month for return flights from Bangkok to Koh Samui?

Average price of round-trip flights from Bangkok to Koh Samui purchased by Trip.com users by month over the past 12 months.

According to historical data from Trip.com, the lowest prices for flights from Bangkok to Koh Samui are found during June, with an average price of AU$ 343. Conversely, the highest prices are found during July, with an average price of up to AU$ 487.

AU$ 487
AU$ 415
AU$ 343
AU$ 271
    Cheapest
  • AU$ 487
    Jul
  • AU$ 464
    Aug
  • AU$ 410
    Sep
  • AU$ 406
    Oct
  • AU$ 374
    Nov
  • AU$ 457
    Dec
  • AU$ 465
    Jan
  • AU$ 456
    Feb
  • AU$ 442
    Mar
  • AU$ 401
    Apr
  • AU$ 372
    May
  • AU$ 343
    Jun

What's the cheapest day to fly from Bangkok to Koh Samui?

Data is based on the average flight price for each day of the week from Bangkok to Koh Samui on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Bangkok to Koh Samui is Tuesday, with average prices lower than on other days. Avoid Monday, as prices are usually highest then.

AU$ 223
AU$ 219
AU$ 215
AU$ 211
  • AU$ 223
    Mon
  • AU$ 215
    Tue
  • AU$ 220
    Wed
  • AU$ 217
    Thu
  • AU$ 220
    Fri
  • AU$ 219
    Sat
  • AU$ 220
    Sun

Flight FAQs

  • Which airlines offer the cheapest flights from Bangkok (BKK) to Koh Samui (USM)?

    Based on Trip.com data, Bangkok Airways offers one-way fares as low as AU$ 112 on Cheapest nonstop routes (e.g. BKK to USM on Fri, Sep 4), while Bangkok Airways offers Cheapest nonstop round-trips from AU$ 238 departing on Fri, Sep 4 and returning on Mon, Sep 7.
  • At the moment, you can catch a direct flight from Bangkok to Koh Samui with the following airlines, including: Bangkok Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 1 hour 11 minutes to fly from Bangkok (BKK) to Koh Samui (USM).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Bangkok to Koh Samui is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 223 flight per week flying from Bangkok to Koh Samui. You can check the weekly schedule for popular airlines on this route below: Bangkok Airways: S/M/T/W/T/F/S -- PG151 (15:18)
  • To find best deals on flights from Bangkok to Koh Samui, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Sep 4, with one-way flights priced at just AU$ 112.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Bangkok Airways.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Koh Samui travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Bangkok to Koh Samui is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Bangkok to Koh Samui on July 15, 2026 with Bangkok Airways, with prices starting at AU$ 116.
  • You can land at any one of the following hubs in Koh Samui, with Suvarnabhumi Airport to Samui Airport (BKK-USM) is by far the most common option on this route: Samui Airport (USM).
  • The time difference between Koh Samui and Bangkok is 0h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Bangkok toKoh Samui

Which airlines operate the most flights from Bangkok to Koh Samui?

Data is based on the number of flights from Bangkok to Koh Samui operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Bangkok Airways operates the most flights from Bangkok to Koh Samui, with 189 flight per week.

147
161
175
189
Bangkok Airways
189
Bangkok Airways
EVA Air
162
EVA Air
Thai Airways
162
Thai Airways
Turkish Airlines
162
Turkish Airlines
China Airlines
161
China Airlines
Etihad Airways
161
Etihad Airways

How many flights are there each day from Bangkok to Koh Samui?

The data is based on the flight numbers for each day of the week from Bangkok to Koh Samui within the Trip.com database over the past month.

Based on Trip.com data from the past month, the most flights from Bangkok to Koh Samui depart on Friday, and the fewest flights depart on Monday.

1617
1423
1228
1034
Highest
1228
Mon
1276
Tue
1282
Wed
1328
Thu
1617
Fri
1364
Sat
1294
Sun

More Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.