$555+ Cheap flights from Detroit (DTT) 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — USM
Oct 17 — Oct 241
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Detroit 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 Detroit to Ko Samui
Cheapest
Best
One-way
Cheapest flights from Detroit to Ko SamuiExplore the most affordable flight options available from Detroit to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Detroit to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:05 pm -
2 stops34h 20m
Mon 11/169:10 pm -
2 stops56h 50m
Deal found 9/15![Turkish Airlines logo]()
$1,584
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/208:05 pm -
2 stops23h 40m
Fri 1/11:25 pm -
2 stops40h 35m
Deal found 9/15![Multiple Airlines logo]()
$3,246
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/208:05 pm -
2 stops24h 00m
Sat 1/29:30 pm -
2 stops32h 30m
Deal found 9/15![Multiple Airlines logo]()
$3,984
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:05 pm -
2 stops24h 35m
Fri 1/11:25 pm -
2 stops40h 35m
Deal found 9/15![Turkish Airlines logo]()
$3,996
This Qatar Airways deal was found by Cheapflights users on 9/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2111:15 am -
3 stops35h 20m
Fri 1/18:30 pm -
3 stops35h 57m
Deal found 9/15![Qatar Airways logo]()
$4,015
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:05 pm -
2 stops24h 35m
Sat 1/28:20 pm -
2 stops33h 40m
Deal found 9/15![Turkish Airlines logo]()
$4,734
This Cathay Pacific deal was found by Cheapflights users on 9/15. 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.
Mon 12/217:31 pm -
2 stops36h 04m
Fri 1/17:15 am -
3 stops28h 44m
Deal found 9/15![Cathay Pacific logo]()
$6,325
This BusinessClass deal was found by Cheapflights users on 9/15. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:05 pm -
3 stops30h 30m
Thu 12/318:30 pm -
2 stops29h 45m
Deal found 9/15![Multiple Airlines logo]()
$11,958
Best flights from Detroit to Ko SamuiDiscover carefully curated flight deals from Detroit to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Detroit to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:05 pm -
2 stops32h 55m
Mon 11/168:20 pm -
2 stops33h 40m
Deal found 9/11![Turkish Airlines logo]()
$1,584
One-way flights from Detroit to Ko SamuiSearch for one-way flight options from Detroit to Ko Samui. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Detroit to Ko Samui. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Sun 2/147:24 pm -
2 stops36h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Cathay Pacific logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/164:46 pm -
3 stops50h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$749
This Cathay Pacific deal was found by Cheapflights users on 9/14. 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.
Mon 2/1510:22 am -
3 stops33h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Cathay Pacific logo]()
$774
Find flight deals from Detroit to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) 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 September 17, 2026.
Round-trip from | $1,584 (Turkish Airlines) |
|---|---|
One-way from | $555 (KAYAK) |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit 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 September 17, 2026.
Use the filters below to find and compare flights from Detroit to Ko Samui that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitKo Samui
DTW Detroit Metropolitan Wayne County - USM Ko Samui
DTWUSM
Detroit Metropolitan Wayne County
Mon 2/15
10:22 am-7:35 pm
2 stops45h 13m
Ko Samui
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$555
Quickest round-trip
DetroitKo Samui
DTW Detroit Metropolitan Wayne County - USM Ko Samui
DTWUSM
Detroit Metropolitan Wayne County
Sun 2/14
7:24 pm-7:35 pm
2 stops36h 11m
Ko Samui
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$555
DetroitKo Samui
DTW Detroit Metropolitan Wayne County - USM Ko Samui
DTWUSM
Detroit Metropolitan Wayne County
Tue 2/16
4:46 pm-7:10 am
3 stops50h 24m
Ko Samui
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$749
DetroitKo Samui
DTW Detroit Metropolitan Wayne County - USM Ko Samui
DTWUSM
Detroit Metropolitan Wayne County
Thu 11/12
8:05 pm-5:00 pm
2 stops32h 55m
Ko Samui
Mon 11/16
8:20 pm-6:00 pm
2 stops33h 40m
$1,584
Sorted by cheapest first
Best time to book a flight from Detroit to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Detroit with our price prediction graph.
DTT-USM
DTW-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 Detroit to Ko Samui
DTT-USM
DTW-USM
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Detroit 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 Tao
Ko Pha Ngan
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 Detroit
Popular flights