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Ko Samui

$1,241+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — USM
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheap flight deals from Detroit to Ko Samui

Cheapest flights from Detroit to Ko Samui
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 March 18, 2026.

This Trip.com deal was found by Cheapflights users on 3/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 am
DTW
-
USM
3 stops49h 30m
Multiple Airlines
Fri 5/86:00 am
USM
-
DTW
3 stops52h 46m
Multiple Airlines
Deal found 3/17$1,241
This oojo deal was found by Cheapflights users on 3/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
DTW
-
USM
2 stops24h 25m
Turkish Airlines
Wed 5/277:50 am
USM
-
DTW
2 stops45h 55m
Turkish Airlines
Deal found 3/17$1,418
This IEagle deal was found by Cheapflights users on 3/16. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:50 pm
DTW
-
USM
2 stops24h 25m
Multiple Airlines
Sat 10/247:00 pm
USM
-
DTW
2 stops59h 10m
Multiple Airlines
Deal found 3/16$1,470
This Turkish Airlines deal was found by Cheapflights users on 3/13. 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.
Sun 9/278:50 pm
DTW
-
USM
2 stops37h 00m
Turkish Airlines
Wed 9/308:50 pm
USM
-
DTW
2 stops32h 55m
Turkish Airlines
Deal found 3/13$1,526
This IEagle deal was found by Cheapflights users on 3/17. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:50 pm
DTW
-
USM
2 stops37h 20m
Turkish Airlines
Fri 5/89:00 pm
USM
-
DTW
2 stops32h 45m
Turkish Airlines
Deal found 3/17$1,646
This Qatar Airways deal was found by Cheapflights users on 3/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:12 pm
DTW
-
USM
3 stops30h 53m
Qatar Airways
Wed 5/278:35 pm
USM
-
DTW
3 stops34h 50m
Qatar Airways
Deal found 3/17$1,908
This Gotogate deal was found by Cheapflights users on 3/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:12 pm
DTW
-
USM
3 stops30h 33m
Multiple Airlines
Wed 5/271:30 pm
USM
-
DTW
2 stops40h 15m
Multiple Airlines
Deal found 3/17$2,060
This Qatar Airways deal was found by Cheapflights users on 3/16. 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.
Fri 10/24:11 pm
DTW
-
USM
3 stops31h 34m
Qatar Airways
Sat 10/249:00 pm
USM
-
DTW
3 stops33h 22m
Qatar Airways
Deal found 3/16$2,642

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 March 18, 2026.

Round-trip from

$1,605
(Gotogate)
From Detroit (DTT) to Ko Samui
Search Deals

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 March 18, 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

Price

Cheapest round-trip

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

Fri 5/1

6:00 am-6:30 pm

3 stops49h 30m

Ko Samui

Fri 5/8

6:00 am-11:46 pm

3 stops52h 46m

$1,241
Quickest round-trip

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

Tue 5/19

5:12 pm-11:05 am

3 stops30h 53m

Ko Samui

Wed 5/27

8:35 pm-8:25 pm

3 stops34h 50m

$1,908

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

Tue 5/19

5:12 pm-10:45 am

3 stops30h 33m

Ko Samui

Wed 5/27

1:30 pm-6:45 pm

2 stops40h 15m

$2,060

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

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.
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 March 18, 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.

  • How long is the flight from Detroit to Ko Samui?

    For as low as $1,908, Qatar Airways can have you in Ko Samui from Detroit in 30h 53m. The distance from Detroit to Ko Samui is about 8847 mi.

  • Can I find deals for flights from Detroit to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Detroit to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Ko Samui.

  • Can I find deals for business class flights from Detroit to Ko Samui?

    Yes. Cheapflights offers flight deals from Detroit to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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