In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

What is the cheapest day to fly round-trip from Detroit to Ko Samui?

Saturday flights are generally found to be more expensive for flights from Detroit to Ko Samui. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ko Samui.

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.

$593+ Flights from Detroit to Ko Samui

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Cheap flight deals from Detroit to Ko Samui

Round-trip from	$1,448 (FlightHub)
One-way from	$593 (Kiwi.com)

From Detroit (DTT) to Ko Samui

Search Deals

One-way flight from Detroit (DTT) to Ko Samui

Search Deals

Find 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 julio 31, 2025.

jue. 9/189:00 pmDTW - USM

2 stops24h 15mTurkish Airlines

lun. 9/226:25 pmUSM - DTW

2 stops59h 40mTurkish Airlines

Deal found 7/29

$1,816

jue. 9/189:20 pmDTW - USM

2 stops30h 25mKLM

lun. 9/221:30 pmUSM - DTW

2 stops40h 30mKLM

Deal found 7/30

$1,825

mar. 8/128:35 amDTW - USM

3 stops35h 40mMultiple Airlines

vie. 8/158:45 amUSM - DTW

3 stops44h 08mMultiple Airlines

Deal found 7/30

$1,847

dom. 8/36:00 amDTW - USM

2 stops25h 35mCathay Pacific

mar. 8/510:55 amUSM - DTW

2 stops48h 04mCathay Pacific

Deal found 7/30

$2,647

Best flights from Detroit to Ko Samui
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 julio 31, 2025.

jue. 9/189:00 pmDTW - USM

2 stops24h 15mTurkish Airlines

lun. 9/226:25 pmUSM - DTW

2 stops59h 40mTurkish Airlines

Deal found 7/29

$1,816

jue. 9/189:20 pmDTW - USM

2 stops30h 25mKLM

lun. 9/221:30 pmUSM - DTW

2 stops40h 30mKLM

Deal found 7/30

$1,825

mar. 8/128:35 amDTW - USM

3 stops35h 40mMultiple Airlines

vie. 8/158:45 amUSM - DTW

3 stops44h 08mMultiple Airlines

Deal found 7/30

$1,847

dom. 8/36:00 amDTW - USM

2 stops25h 35mCathay Pacific

mar. 8/510:55 amUSM - DTW

2 stops48h 04mCathay Pacific

Deal found 7/30

$2,647

Last-minute flights from Detroit to Ko Samui
Discover last-minute flight deals from Detroit to Ko Samui. Data last updated julio 31, 2025 and is based on user searches.

dom. 8/36:00 amDTW - USM

2 stops25h 35mCathay Pacific

mar. 8/510:55 amUSM - DTW

2 stops48h 04mCathay Pacific

Deal found 7/30

$2,647

mar. 8/128:35 amDTW - USM

3 stops35h 40mMultiple Airlines

vie. 8/158:45 amUSM - DTW

3 stops44h 08mMultiple Airlines

Deal found 7/30

$1,847

One-way flights from Detroit to Ko Samui
Search for one-way flight options from Detroit to Ko Samui. Find affordable one-way fares based on user searches. Data last updated julio 31, 2025.

sáb. 9/131:13 pmDTW - USM

3 stops55h 07mMultiple Airlines

Deal found 7/30

$593

Fly from

Fly to

Route

Depart

Return

Price

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

jue. 9/18

9:00 pm-8:15 am

2 stops24h 15m

Ko Samui

lun. 9/22

6:25 pm-7:05 pm

2 stops59h 40m

$1,816

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

jue. 9/18

9:20 pm-2:45 pm

2 stops30h 25m

Ko Samui

lun. 9/22

1:30 pm-7:00 pm

2 stops40h 30m

$1,825

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

mar. 8/12

8:35 am-7:15 am

3 stops35h 40m

Ko Samui

vie. 8/15

8:45 am-5:53 pm

3 stops44h 08m

$1,847

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

dom. 8/3

6:00 am-6:35 pm

2 stops25h 35m

Ko Samui

mar. 8/5

10:55 am-11:59 pm

2 stops48h 04m

$2,647

DetroitKo Samui

DTW - USM

DTWUSM

Detroit Metropolitan Wayne County

sáb. 9/13

1:13 pm-7:20 am

3 stops55h 07m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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?

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 68% versus a flight in the morning.

What is the cheapest day to fly from Detroit to Ko Samui?

Travelers seeking maximum savings on their Detroit to Ko Samui flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ko Samui

Peruse reviews from past customers who have flown with KLM, Cathay Pacific, and Qatar Airways from Detroit to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Cathay Pacific

7.6

Good

949 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Qatar Airways

7.4

Good

3,609 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Turkish Airlines

7.3

Good

3,933 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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.

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Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

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$593+ Cheap flights from Detroit (DTT) to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to Ko Samui with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Detroit to Ko Samui

Round-trip from

One-way from

Find 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 julio 31, 2025.

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 julio 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit to Ko Samui that are best for you.

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.

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 julio 31, 2025.

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.

Reviews of airlines servicing Ko Samui

Peruse reviews from past customers who have flown with KLM, Cathay Pacific, and Qatar Airways from Detroit to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

Traveling to a place near Ko Samui?

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 for Detroit to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 julio 31, 2025.