Which airports can I use when flying from Denver to Ko Samui?

Flights from Denver to Ko Samui usually depart from Denver Intl (DEN) and arrive at Ko Samui (USM).

What cabin classes can I book on flights from Denver to Ko Samui?

Only Economy Class is available on flights from Denver to Ko Samui.

Can I save money by using flexible dates for flights from Denver to Ko Samui?

Yes. Flexible dates can save you up to 27% on flights from Denver to Ko Samui. Sunday is the cheapest departure day at $1,841 round-trip on average, while Wednesday is the most expensive at $2,505, a difference of $664. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Choeng Mon Beach. These are among the most viewed places in Ko Samui on KAYAK.

Do I need a passport to fly from Denver to Ko Samui?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Denver to Ko Samui changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,227 to $8,671. That means the highest observed fare was about 7x higher than the lowest one.

How are flight prices from Denver to Ko Samui looking right now?

One-way fares from Denver to Ko Samui are currently lower than usual. Average one-way flight prices are about $616, which is 41% below the typical average for this route.

What is the time difference between Denver and Ko Samui?

Ko Samui is 13 hours ahead of Denver (Indochina Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Thai Rent

How much is a round-trip flight from Denver to Ko Samui?

Round-trip flights from Denver to Ko Samui typically range from $1,764 to $1,990. The lowest price found in the past 5 days was $1,227, on Cathay Pacific.

Which airline is the cheapest to fly from Denver to Ko Samui?

Cathay Pacific ($1,227) and Qatar Airways ($2,021) are the cheapest airlines to fly round-trip from Denver to Ko Samui according to KAYAK data over the last 5 days.

$563 CHEAP FLIGHTS from Denver to Ko Samui (DEN - USM)

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Cheapest round-trip

$1,227

Typical prices: $1,764-$1,990

Cathay Pacific

Mon 11/12Fri 11/16

DEN - USM • 2 stops

Cheapest one-way

$563

Typical prices: $742-$1,265

Multiple Airlines

Thu 1/11

DEN - USM • 3 stops

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We hope you love your trip to Ko Samui!

Flight Deals

Cheap Flights from Denver to Ko Samui (DEN-USM)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Denver to Ko Samui

Thu, Nov 12 - Mon, Nov 16

7:09 am - 7:35 pmDEN Denver Intl-USM Ko Samui

46h 26m2 stops Los Angeles Hong Kong Intl

11:40 am - 10:09 pmUSM Ko Samui-DEN Denver Intl

48h 29m2 stops Hong Kong Intl Los Angeles

$1,227Cathay Pacific

Fri, Jan 8 - Sat, Jan 23

1:50 pm - 7:35 pmDEN Denver Intl-USM Ko Samui

39h 45m2 stops Los Angeles Hong Kong Intl

11:40 am - 5:27 pmUSM Ko Samui-DEN Denver Intl

43h 47m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,473Multiple Airlines

Fri, Jan 8 - Sat, Jan 23

8:04 am - 7:35 pmDEN Denver Intl-USM Ko Samui

45h 31m2 stops Chicago O'Hare Intl Hong Kong Intl

11:40 am - 5:27 pmUSM Ko Samui-DEN Denver Intl

43h 47m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,531Cathay Pacific

Fri, Jan 8 - Sat, Jan 23

7:30 pm - 8:25 pmDEN Denver Intl-USM Ko Samui

34h 55m2 stops Istanbul Bangkok Suvarnabhumi

2:30 pm - 10:49 amUSM Ko Samui-DEN Denver Intl

34h 19m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,788Multiple Airlines

Fri, Jan 8 - Sat, Jan 23

7:54 pm - 2:55 pmDEN Denver Intl-USM Ko Samui

29h 01m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

2:05 pm - 11:17 pmUSM Ko Samui-DEN Denver Intl

23h 12m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,804Multiple Airlines

Fri, Jan 8 - Sat, Jan 23

7:54 pm - 2:55 pmDEN Denver Intl-USM Ko Samui

29h 01m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

2:05 pm - 11:17 pmUSM Ko Samui-DEN Denver Intl

23h 12m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,805Multiple Airlines

Fri, Jan 8 - Sat, Jan 23

7:54 pm - 2:55 pmDEN Denver Intl-USM Ko Samui

29h 01m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

2:05 pm - 11:17 pmUSM Ko Samui-DEN Denver Intl

23h 12m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,862Multiple Airlines

Fri, Jan 8 - Sat, Jan 23

12:50 pm - 10:40 amDEN Denver Intl-USM Ko Samui

31h 50m3 stops New York John F Kennedy Intl Doha Hamad Intl Phuket City

9:30 pm - 6:56 pmUSM Ko Samui-DEN Denver Intl

35h 26m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Seattle/Tacoma Intl

$2,021Qatar Airways

Fri, Jan 8 - Sat, Jan 23

7:45 am - 6:15 pmDEN Denver Intl-USM Ko Samui

44h 30m2 stops Los Angeles Singapore Changi

1:25 pm - 5:57 pmUSM Ko Samui-DEN Denver Intl

42h 32m3 stops Singapore Changi Tokyo Narita Los Angeles

$3,210Singapore Airlines

Fri, Jan 8 - Sat, Jan 23

7:45 am - 6:15 pmDEN Denver Intl-USM Ko Samui

44h 30m2 stops Los Angeles Singapore Changi

1:25 pm - 5:57 pmUSM Ko Samui-DEN Denver Intl

42h 32m3 stops Singapore Changi Tokyo Narita Los Angeles

$3,424Singapore Airlines

Recent last minute flight deals from Denver to Ko Samui

Fri, Oct 30 - Sun, Nov 15

6:42 pm - 7:35 pmDEN Denver Intl-USM Ko Samui

35h 53m2 stops Los Angeles Hong Kong Intl

11:40 am - 11:46 amUSM Ko Samui-DEN Denver Intl

38h 06m2 stops Hong Kong Intl Los Angeles

$1,188Multiple Airlines

Fri, Oct 30 - Sun, Nov 15

7:00 am - 7:10 amDEN Denver Intl-USM Ko Samui

35h 10m3 stops Los Angeles Hong Kong Intl Bangkok Suvarnabhumi

11:40 am - 10:09 pmUSM Ko Samui-DEN Denver Intl

48h 29m2 stops Hong Kong Intl Los Angeles

$1,336Cathay Pacific

Fri, Oct 30 - Sun, Nov 15

2:29 pm - 10:35 amDEN Denver Intl-USM Ko Samui

31h 06m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

5:40 pm - 2:34 pmUSM Ko Samui-DEN Denver Intl

34h 54m3 stops Bangkok Suvarnabhumi Doha Hamad Intl New York John F Kennedy Intl

$2,203Qatar Airways

Fri, Oct 30 - Sun, Nov 15

2:29 pm - 10:35 amDEN Denver Intl-USM Ko Samui

31h 06m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

5:40 pm - 2:34 pmUSM Ko Samui-DEN Denver Intl

34h 54m3 stops Bangkok Suvarnabhumi Doha Hamad Intl New York John F Kennedy Intl

$2,207Qatar Airways

Fri, Oct 30 - Sun, Nov 15

2:29 pm - 10:35 amDEN Denver Intl-USM Ko Samui

31h 06m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

5:40 pm - 2:34 pmUSM Ko Samui-DEN Denver Intl

34h 54m3 stops Bangkok Suvarnabhumi Doha Hamad Intl New York John F Kennedy Intl

$2,324Qatar Airways

Fri, Oct 30 - Sun, Nov 15

5:50 pm - 9:05 pmDEN Denver Intl-USM Ko Samui

62h 15m3 stops Los Angeles Tokyo Narita Singapore Changi

1:25 pm - 5:56 pmUSM Ko Samui-DEN Denver Intl

42h 31m2 stops Singapore Changi Los Angeles

$2,654Singapore Airlines

Fri, Oct 30 - Sun, Nov 15

5:50 pm - 9:05 pmDEN Denver Intl-USM Ko Samui

62h 15m3 stops Los Angeles Tokyo Narita Singapore Changi

1:25 pm - 5:56 pmUSM Ko Samui-DEN Denver Intl

42h 31m2 stops Singapore Changi Los Angeles

$2,915Singapore Airlines

Fri, Oct 30 - Sun, Nov 15

5:50 pm - 6:15 pmDEN Denver Intl-USM Ko Samui

35h 25m2 stops Los Angeles Singapore Changi

4:25 pm - 5:56 pmUSM Ko Samui-DEN Denver Intl

39h 31m3 stops Singapore Changi Tokyo Narita Los Angeles

$3,463Singapore Airlines

Booking Insights

Price, demand and travel trends for Denver to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a round-trip flight from Denver to Ko Samui? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Ko Samui departing in november.

Find deals

Expert advice

Our travel experts

Stefanie Waldek

Expert on Frontier, Delta and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Daniel Scheffler

Expert on Sun Country Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Cheapest flight	$563

One-way flight from Denver to Ko Samui

When to book flights from Denver to Ko Samui

Are your dates flexible? Find out the best times to travel from Denver to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Denver to Ko Samui?
Only Economy Class is available on flights from Denver to Ko Samui.
Do I need a passport to fly from Denver to Ko Samui?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Denver to Ko Samui changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,227 to $8,671. That means the highest observed fare was about 7x higher than the lowest one.
How are flight prices from Denver to Ko Samui looking right now?
One-way fares from Denver to Ko Samui are currently lower than usual. Average one-way flight prices are about $616, which is 41% below the typical average for this route.
What car rental options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Thai Rent
Which airports can I use when flying from Denver to Ko Samui?
Flights from Denver to Ko Samui usually depart from Denver Intl (DEN) and arrive at Ko Samui (USM).
Can I save money by using flexible dates for flights from Denver to Ko Samui?
Yes. Flexible dates can save you up to 27% on flights from Denver to Ko Samui. Sunday is the cheapest departure day at $1,841 round-trip on average, while Wednesday is the most expensive at $2,505, a difference of $664.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What is the time difference between Denver and Ko Samui?
Ko Samui is 13 hours ahead of Denver (Indochina Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Choeng Mon Beach. These are among the most viewed places in Ko Samui on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Wednesday. On this route, Sunday flights average $1,841, about $664 less than Wednesday fares (27% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

• Ozo Chaweng Samui - Sha Extra Plus
• Melia Koh Samui
• Amari Koh Samui

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DEN - USM

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Everything you should know

Cheap Flights from Denver to Ko Samui (DEN-USM)

Recent round-trip flight deals from Denver to Ko Samui

Recent one-way flight deals from Denver to Ko Samui

Recent last minute flight deals from Denver to Ko Samui

Price, demand and travel trends for Denver to Ko Samui flights

How much is a round-trip flight from Denver to Ko Samui?

Which airline is the cheapest to fly from Denver to Ko Samui?

Expert advice for your flight from Denver to Ko Samui

Key details for Denver to Ko Samui flights

Cheapest flight

When to book flights from Denver to Ko Samui

Your Denver to Ko Samui flight questions, answered

Your guide to booking Denver to Ko Samui flights

More options for your flight from Denver to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Denver to Ko Samui

Find direct flights to and from Denver and Ko Samui

Flights from domestic origins to Ko Samui

Flights to other popular destinations