$148 Cheap Flights from Samui Intl. Airport (USM) to Bangkok (DMK)

View $148 flight on Thu, Sep 18, 2025Opens in a new window

Popular airlines from Samui Intl. Airport (USM) to Don Mueang Intl. Airport (DMK)

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Cheap Flights from Samui Intl. Airport to Bangkok (USM-DMK)

Prices were available within the past 7 days and start at $148 for one-way flights and $301 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu, Sep 11 - Fri, Sep 12
USM
Koh Samui
DMK
Bangkok
$301 Roundtrip, found 1 hour ago
$301
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Thu, Sep 11 from Koh Samui to Bangkok, returning Fri, Sep 12, priced at $301 found 1 hour ago
Bangkok Airways
Fri, Sep 12 - Sat, Sep 13
USM
Koh Samui
DMK
Bangkok
$328 Roundtrip, found 1 hour ago
$328
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Fri, Sep 12 from Koh Samui to Bangkok, returning Sat, Sep 13, priced at $328 found 1 hour ago
Bangkok Airways
Mon, Oct 6 - Sun, Oct 12
USM
Koh Samui
DMK
Bangkok
$338 Roundtrip, found 6 hours ago
$338
Roundtrip
found 6 hours ago
Select Bangkok Airways flight, departing Mon, Oct 6 from Koh Samui to Bangkok, returning Sun, Oct 12, priced at $338 found 6 hours ago
Bangkok Airways
Mon, Oct 6 - Sun, Oct 12
USM
Koh Samui
DMK
Bangkok
$340 Roundtrip, found 1 day ago
$340
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Mon, Oct 6 from Koh Samui to Bangkok, returning Sun, Oct 12, priced at $340 found 1 day ago
Bangkok Airways
Thu, Oct 9 - Thu, Oct 23
USM
Koh Samui
DMK
Bangkok
$341 Roundtrip, found 5 days ago
$341
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 9 from Koh Samui to Bangkok, returning Thu, Oct 23, priced at $341 found 5 days ago
Bangkok Airways
Mon, Aug 11 - Sat, Aug 23
USM
Koh Samui
DMK
Bangkok
$346 Roundtrip, found 4 hours ago
$346
Roundtrip
found 4 hours ago
Select Bangkok Airways flight, departing Mon, Aug 11 from Koh Samui to Bangkok, returning Sat, Aug 23, priced at $346 found 4 hours ago
Bangkok Airways
Wed, Aug 20 - Wed, Aug 27
USM
Koh Samui
DMK
Bangkok
$348 Roundtrip, found 2 days ago
$348
Roundtrip
found 2 days ago
Select Bangkok Airways flight, departing Wed, Aug 20 from Koh Samui to Bangkok, returning Wed, Aug 27, priced at $348 found 2 days ago
Bangkok Airways
Sun, Aug 3 - Sat, Aug 23
USM
Koh Samui
DMK
Bangkok
$349 Roundtrip, found 5 days ago
$349
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Sun, Aug 3 from Koh Samui to Bangkok, returning Sat, Aug 23, priced at $349 found 5 days ago
Bangkok Airways
Mon, Aug 11 - Sat, Aug 23
USM
Koh Samui
DMK
Bangkok
$352 Roundtrip, found 4 hours ago
$352
Roundtrip
found 4 hours ago
Select Bangkok Airways flight, departing Mon, Aug 11 from Koh Samui to Bangkok, returning Sat, Aug 23, priced at $352 found 4 hours ago
Bangkok Airways
Wed, Aug 20 - Fri, Aug 29
USM
Koh Samui
DMK
Bangkok
$353 Roundtrip, found 1 day ago
$353
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Wed, Aug 20 from Koh Samui to Bangkok, returning Fri, Aug 29, priced at $353 found 1 day ago

Find the cheapest month to fly from Koh Samui (USM) to Bangkok (DMK)

May is typically the cheapest month to fly

From $183 - $311 per traveler.

Graph displaying average flight prices per month

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $328
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city center23 min
Flights from $328
Flights from Samui Intl. Airport (USM) to Bangkok (DMK)
Origin airport
Samui Intl. Airport
Destination airport
Don Mueang Intl.
Airlines serving
Bangkok Airways
Roundtrip price
$289
Distance
304 mi
Average flight time
1 hour 30 mins

Samui Intl. Airport to Bangkok Flights

The cheapest times to fly from Samui Intl. Airport to Bangkok

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Samui Intl. Airport to Bangkok are during the month of September. You can find some of the cheapest flights from Samui Intl. Airport to Bangkok with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Samui Intl. Airport to Bangkok

Sunday is one of the best days to book for cheap flights from Samui Intl. Airport to Bangkok: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Samui Intl. Airport to Bangkok

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Samui Intl. Airport to Bangkok in 2025. You can also book with separate airlines for your outbound and return journeys, from $148 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Samui Intl. Airport to Bangkok flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Samui Intl. Airport to Bangkok airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK) cost?
Find cheap return flights from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK) starting from $290. Reserve your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Bangkok Airways flight leaving USM on August 19 2025 and touching down at DMK. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from USM to DMK?
The cheapest flights from USM to DMK are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
When jetting out of Ko Samui Airport (USM), you can jump on a nonstop flight to Don Mueang Intl. Airport (DMK) with Bangkok Airways.
What is the cheapest airline that flies from USM to DMK?
Right now, the cheapest carrier operating one-way flights from USM to DMK is Bangkok Airways. You can book a seat on this route from $148. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from USM on October 17 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
With an average of 3 direct flights departing from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK) each day, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
Flights between USM and DMK are their busiest at 6 AM. If you're after a quieter experience and potentially cheaper prices, look for a time when demand is lower.
What day of the week has the most flights from USM to DMK?
Saturday offers the most flights from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK). Consider leaving on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
Ko Samui Airport (USM)'s earliest flight to Don Mueang Intl. Airport (DMK) leaves at approximately 6:45AM UTC+7. With a travel time of 1h 35m, you'll touch down at around 8:20AM UTC+7.
How long does it take to fly from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
Flights from USM to DMK have an average travel time of 1 hour and 35 minutes. The distance between the two is 300 mi.
What airline has the least delays from USM to DMK?
Consider booking with Bangkok Airways if you'd like to fly straight from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK) without any holdups. This airline has the strongest track record for punctuality, with an on-time score of 92%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
To reach Don Mueang Intl. Airport (DMK) on schedule, opt for a flight that takes off from Ko Samui Airport (USM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Bangkok from Ko Samui Airport (USM)?
Take a direct flight from Ko Samui Airport (USM) to Bangkok and touch down at Suvarnabhumi Intl. Airport (BKK). Another point of entry into the city is Don Mueang Intl. Airport (DMK).
Is it cheaper to buy a plane ticket from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK) last-minute?
Waiting until just before your departure to book a flight from USM to DMK generally means paying more. Although you may find some last-minute deals, they're not always guaranteed. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book an USM to DMK flight and hotel package?
Securing an USM to DMK flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ko Samui Airport (USM) to Don Mueang Intl. Airport (DMK)?
Typically, it's possible to reschedule or cancel your USM to DMK flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.