$1,391+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — USM
Feb 28 — Mar 71
1 adult, Economy
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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 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 January 29, 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 January 29, 2026.
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/89:05 pm
DTW
- USM
2 stops26h 35m
Multiple Airlines
Mon 3/237:00 pm
USM
- DTW
2 stops35h 10m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,391
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/139:05 pm
DTW
- USM
2 stops23h 40m
Multiple Airlines
Fri 3/204:25 pm
USM
- DTW
2 stops37h 45m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,448
This Turkish Airlines deal was found by Cheapflights users on 1/26. 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 9/178:50 pm
DTW
- USM
2 stops27h 25m
Turkish Airlines
Mon 9/2111:45 am
USM
- DTW
2 stops42h 00m
Turkish Airlines
Deal found 1/26![Turkish Airlines logo]()
$1,493
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:50 pm
DTW
- USM
2 stops34h 10m
Multiple Airlines
Wed 7/294:25 pm
USM
- DTW
2 stops37h 20m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,663
This Qatar Airways deal was found by Cheapflights users on 1/27. 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.
Sun 3/85:29 pm
DTW
- USM
3 stops31h 21m
Qatar Airways
Mon 3/238:30 pm
USM
- DTW
3 stops35h 46m
Qatar Airways
Deal found 1/27![Qatar Airways logo]()
$1,960
This Qatar Airways deal was found by Cheapflights users on 1/28. 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.
Wed 7/224:57 pm
DTW
- USM
3 stops31h 08m
Qatar Airways
Wed 7/295:50 pm
USM
- DTW
3 stops32h 44m
Qatar Airways
Deal found 1/28![Qatar Airways logo]()
$2,447
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 January 29, 2026.
Round-trip from | $1,391 (oojo) |
|---|
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 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Detroit to Ko Samui that are best for you.
Fly from
Detroit
Fly to
Ko Samui
Route
Depart
Return
Price
DetroitKo Samui
DTW - USM
DTWUSM
Detroit Metropolitan Wayne County
Sun 3/8
9:05 pm-10:40 am
2 stops26h 35m
Ko Samui
Mon 3/23
7:00 pm-7:10 pm
2 stops35h 10m
$1,391
DetroitKo Samui
DTW - USM
DTWUSM
Detroit Metropolitan Wayne County
Fri 3/13
9:05 pm-7:45 am
2 stops23h 40m
Ko Samui
Fri 3/20
4:25 pm-7:10 pm
2 stops37h 45m
$1,448
DetroitKo Samui
DTW - USM
DTWUSM
Detroit Metropolitan Wayne County
Wed 7/22
8:50 pm-6:00 pm
2 stops34h 10m
Ko Samui
Wed 7/29
4:25 pm-6:45 pm
2 stops37h 20m
$1,663
DetroitKo Samui
DTW - USM
DTWUSM
Detroit Metropolitan Wayne County
Sun 3/8
5:29 pm-11:50 am
3 stops31h 21m
Ko Samui
Mon 3/23
8:30 pm-9:16 pm
3 stops35h 46m
$1,960
DetroitKo Samui
DTW - USM
DTWUSM
Detroit Metropolitan Wayne County
Wed 7/22
4:57 pm-10:45 am
3 stops30h 48m
Ko Samui
Wed 7/29
2:00 pm-12:28 pm
3 stops33h 28m
$2,447
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.
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
What is the cheapest time of day to fly from DTT to USM?
Find hourly flight availability from Detroit to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.
When flying from Detroit to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 51% versus a flight in the afternoon.
What is the cheapest day to fly from Detroit to Ko Samui?
Use this chart to determine the cheapest time to fly round-trip from Detroit to Ko Samui. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Detroit to Ko Samui flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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