$1,434+ Cheap flights from Austin (AUS) to Ko Samui (USM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — USM
Nov 21 — Nov 281
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Austin to Ko Samui with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Austin to Ko Samui
Cheapest
Best
Cheapest flights from Austin to Ko SamuiExplore the most affordable flight options available from Austin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.
Explore the most affordable flight options available from Austin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:22 pm -
2 stops39h 13m
Wed 12/911:40 am -
2 stops46h 08m
Deal found 10/18![Multiple Airlines logo]()
$1,601
Best flights from Austin to Ko SamuiDiscover carefully curated flight deals from Austin to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
Discover carefully curated flight deals from Austin to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
This Booking.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/257:03 pm -
3 stops47h 42m
Tue 2/99:10 pm -
3 stops33h 50m
Deal found 10/17![Multiple Airlines logo]()
$1,434
This KAYAK deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/255:46 pm -
2 stops36h 49m
Tue 2/911:40 am -
2 stops38h 53m
Deal found 10/17![Cathay Pacific logo]()
$1,804
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:22 pm -
2 stops39h 13m
Wed 12/911:40 am -
2 stops46h 08m
Deal found 10/18![Multiple Airlines logo]()
$1,601
Find flight deals from Austin to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 22, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,434 (Booking.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 22, 2026.
Use the filters below to find and compare flights from Austin to Ko Samui that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinKo Samui
AUS Austin Bergstrom - USM Ko Samui
AUSUSM
Austin Bergstrom
Mon 1/25
7:03 pm-7:45 am
3 stops47h 42m
Ko Samui
Tue 2/9
9:10 pm-6:00 pm
3 stops33h 50m
$1,434
AustinKo Samui
AUS Austin Bergstrom - USM Ko Samui
AUSUSM
Austin Bergstrom
Wed 12/2
3:22 pm-7:35 pm
2 stops39h 13m
Ko Samui
Wed 12/9
11:40 am-8:48 pm
2 stops46h 08m
$1,601
Quickest round-trip
AustinKo Samui
AUS Austin Bergstrom - USM Ko Samui
AUSUSM
Austin Bergstrom
Mon 1/25
5:46 pm-7:35 pm
2 stops36h 49m
Ko Samui
Tue 2/9
11:40 am-1:33 pm
2 stops38h 53m
$1,804
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Austin-Ko Samui flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Austin-Ko Samui flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Austin-Ko Samui flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-Ko Samui flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Austin to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Austin with our price prediction graph.
AUS-USM
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Austin to Ko Samui
How often are flights from Austin to Ko Samui delayed?
About 6% of weekly flights between Austin and Ko Samui have experienced delays in the past year, with the average delay time being 163 minutes.
What is the most punctual flight time for Austin to Ko Samui flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Austin to Ko Samui flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 6% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Austin to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Pha Ngan
Ko Tao
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ko Samui flight routes
Other flight options
Other flights from Austin
Popular flights