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Ko Samui

$1,325+ Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — USM
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
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 February 20, 2026.

This Cathay Pacific deal was found by Cheapflights users on 2/18. 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 9/24:06 pm
DTW
-
USM
2 stops40h 34m
Multiple Airlines
Wed 9/911:55 am
USM
-
DTW
2 stops44h 11m
Multiple Airlines
Deal found 2/18$1,325
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm
DTW
-
USM
2 stops36h 56m
Cathay Pacific
Wed 9/93:25 pm
USM
-
DTW
3 stops40h 41m
Cathay Pacific
Deal found 2/16$1,348
This Cathay Pacific deal was found by Cheapflights users on 2/18. 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.
Thu 9/177:52 pm
DTW
-
USM
2 stops36h 48m
Cathay Pacific
Mon 9/2111:55 am
USM
-
DTW
2 stops44h 11m
Cathay Pacific
Deal found 2/18$1,364
This oojo deal was found by Cheapflights users on 2/20. 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.
Mon 10/198:50 pm
DTW
-
USM
2 stops24h 45m
Multiple Airlines
Thu 10/2911:10 am
USM
-
DTW
2 stops43h 00m
Multiple Airlines
Deal found 2/20$1,453
This Qatar Airways deal was found by Cheapflights users on 2/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:10 pm
DTW
-
USM
3 stops31h 10m
Qatar Airways
Wed 9/99:00 pm
USM
-
DTW
3 stops35h 06m
Qatar Airways
Deal found 2/18$1,488
This Qatar Airways deal was found by Cheapflights users on 2/20. 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 10/195:30 pm
DTW
-
USM
3 stops30h 00m
Qatar Airways
Thu 10/299:10 pm
USM
-
DTW
3 stops34h 54m
Qatar Airways
Deal found 2/20$1,906
This Gotogate deal was found by Cheapflights users on 2/17. 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.
Fri 4/38:50 pm
DTW
-
USM
2 stops37h 20m
Multiple Airlines
Fri 4/104:25 pm
USM
-
DTW
2 stops61h 20m
Multiple Airlines
Deal found 2/17$2,052

Find flight deals from Detroit to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) 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 February 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$2,052
(Gotogate)
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Ko Samui flights.
Search Deals
From Detroit Metropolitan Wayne County 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 February 20, 2026.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport 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

Fri 4/3

8:50 pm-9:10 pm

2 stops37h 20m

Ko Samui

Fri 4/10

4:25 pm-6:45 pm

2 stops61h 20m

$2,052

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Compare providers for flights from Detroit to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Ko Samui in February.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit Metropolitan Wayne County Airport-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub 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 Detroit Metropolitan Wayne County Airport-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 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 Metropolitan Wayne County Airport to Ko Samui

What is the cheapest time of day to fly from DTW 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 February 20, 2026.

When flying from Detroit Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport 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.

  • 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.

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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