$107 Cheap Flights to Koh Samui Islands

View $107 flight on Sat, Jun 28, 2025Opens in a new window

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How much is the cheapest flight to Koh Samui Islands?

Prices were available within the past 7 days and start at $107 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Fri, Jun 20 - Sun, Jun 22
HKT
Phuket
USM
Koh Samui
$219 Roundtrip, just found
$219
Roundtrip
just found
Select Bangkok Airways flight, departing Fri, Jun 20 from Phuket to Koh Samui, returning Sun, Jun 22, priced at $219 just found
Scoot
Thu, May 15 - Mon, May 19
SIN
Singapore
USM
Koh Samui
$257 Roundtrip, found 16 hours ago
$257
Roundtrip
found 16 hours ago
Select Scoot flight, departing Thu, May 15 from Singapore to Koh Samui, returning Mon, May 19, priced at $257 found 16 hours ago
Bangkok Airways
Wed, May 14 - Thu, May 15
BKK
Bangkok
USM
Koh Samui
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select Bangkok Airways flight, departing Wed, May 14 from Bangkok to Koh Samui, returning Thu, May 15, priced at $281 found 3 days ago
Bangkok Airways
Fri, May 30 - Fri, Jun 20
DMK
Bangkok
USM
Koh Samui
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select Bangkok Airways flight, departing Fri, May 30 from Bangkok to Koh Samui, returning Fri, Jun 20, priced at $281 found 3 days ago
Scoot
Wed, May 14 - Sun, May 18
HKG
Hong Kong SAR
USM
Koh Samui
$407 Roundtrip, found 2 days ago
$407
Roundtrip
found 2 days ago
Select Scoot flight, departing Wed, May 14 from Hong Kong SAR to Koh Samui, returning Sun, May 18, priced at $407 found 2 days ago

Frequently asked questions

What month is the cheapest to fly to Koh Samui Islands?
The best months to find cheap flights to Koh Samui Islands are typically during the off-peak season, when demand is lower. To save money, avoid flying during public holidays and school breaks.
Which US cities fly direct to Koh Samui Islands?
Nonstop flights make travel a little easier. When you search on Expedia, check “Direct flights only” to see the available options to fly to Koh Samui Islands.
How to find a cheap flight to Koh Samui Islands?
Book in advance for the best chance of scoring cheap flights to Koh Samui Islands. Also, consider traveling during off-peak months like May and September. If you jet off on a Thursday, you’ll save an average of 16% compared to departing on a Sunday.* Save time checking every day and track your flight prices using the Expedia app. We’ll let you know when fares change.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Koh Samui Islands?
While booking in advance is generally the easiest way to save cash, don’t worry if your Koh Samui Islands getaway is last minute. You can still get cheap flights to Koh Samui Islands, especially if your plans have a little wiggle room. Try changing your travel dates, looking at different ticket types or jetting out of another hub.
How far in advance should I book a flight to Koh Samui Islands?
Book your flight to Koh Samui Islands two to four months ahead if you’re jetting in from an international destination. For domestic travel, the general guideline is 28 days in advance. Cheaper fares and a wider variety of travel dates, schedules and seating options are just some of the perks of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Koh Samui Islands?
You’ll save an average of 8% by buying tickets on a Sunday instead of Fridays, which tend to be the priciest day to book.* When it comes to scoring a cheap flight to Koh Samui Islands, timing makes a difference.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Can I save money by booking a Koh Samui Islands trip package?
You could possibly save hundreds of dollars if you secure a Koh Samui Islands flight and hotel package deal on Expedia. And you’ll save time and hassle by having all your travel arrangements in one place. Try bundling your hotel and flight with add-ons like activities and car rentals for your own personalized Koh Samui Islands escape.
Can I change or cancel my flight to Koh Samui Islands?
If you bought your flight to Koh Samui Islands in the last 24 hours, you can often cancel or change it for free. After that, additional charges may apply depending on the airline’s terms of service. To learn more, visit our Customer Service Portal. Remember that some flights are non-refundable, so you may be offered a credit for future flights rather than a direct refund. When searching on Expedia, use the “Changes included” or “No cancel fee” boxes to find fares with flexible change policies.

Trending flights to Koh Samui Islands

Prices were available within the past 7 days and start at $107 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Thu, Sep 11 - Wed, Sep 17
SFO
San Francisco
USM
Koh Samui
$831 Roundtrip, found 6 days ago
$831
Roundtrip
found 6 days ago
Select Japan Airlines flight, departing Thu, Sep 11 from San Francisco to Koh Samui, returning Wed, Sep 17, priced at $831 found 6 days ago
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