HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Samui

$1,489+ Cheap flights from Colorado 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — USM
mars 5 — mars 121
jeu. 3/5
jeu. 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Ko Samui with Cheapflights

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 Colorado to Ko Samui

Cheapest flights from Colorado to Ko Samui
Explore the most affordable flight options available from Colorado to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on février 3, 2026.

This EVA Air deal was found by Cheapflights users on 2/2. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/309:25 pm
DEN
-
USM
3 stops28h 30m
Multiple Airlines
dim. 11/1512:15 pm
USM
-
DEN
3 stops26h 28m
Multiple Airlines
Deal found 2/2$1,489
This EVA Air deal was found by Cheapflights users on 2/2. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/19:25 pm
DEN
-
USM
3 stops27h 20m
Multiple Airlines
sam. 10/178:45 am
USM
-
DEN
3 stops26h 16m
Multiple Airlines
Deal found 2/2$1,539
This FlightHub deal was found by Cheapflights users on 2/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/107:05 pm
DEN
-
USM
2 stops28h 00m
Multiple Airlines
dim. 3/298:50 pm
USM
-
DEN
2 stops28h 45m
Multiple Airlines
Deal found 2/2$2,305
This FlightHub deal was found by Cheapflights users on 2/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/14:05 pm
DEN
-
USM
2 stops40h 05m
Lufthansa
sam. 10/177:45 pm
USM
-
DEN
2 stops31h 35m
Lufthansa
Deal found 2/2$2,440
This British Airways deal was found by Cheapflights users on 1/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/176:40 pm
DEN
-
USM
2 stops34h 35m
British Airways
lun. 9/214:25 pm
USM
-
DEN
2 stops37h 05m
British Airways
Deal found 1/31$2,487
This British Airways deal was found by Cheapflights users on 2/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/266:40 pm
DEN
-
USM
2 stops34h 35m
British Airways
mer. 9/301:30 pm
USM
-
DEN
2 stops40h 00m
British Airways
Deal found 2/1$2,542
This Qatar Airways deal was found by Cheapflights users on 2/1. 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.
mar. 2/1011:40 am
DEN
-
USM
3 stops31h 40m
Qatar Airways
dim. 3/293:50 pm
USM
-
DEN
3 stops35h 07m
Qatar Airways
Deal found 2/1$2,738

Find flight deals from Colorado to Ko Samui

Keep the following information in mind while searching for Colorado to Ko Samui flight deals. Data was last updated février 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$2,305
(FlightHub)
Provider with most accurate pricing for Denver Intl-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Ko Samui flights.
Search Deals
From Colorado to Ko Samui
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 février 3, 2026.
Use the filters below to find and compare flights from Colorado to Ko Samui that are best for you.

Fly from

Colorado

Fly to

Ko Samui

Route

Depart

Return

Price

DenverKo Samui

DEN - USM

DENUSM

Denver Intl

mar. 2/10

7:05 pm-1:05 pm

2 stops28h 00m

Ko Samui

dim. 3/29

8:50 pm-12:35 pm

2 stops28h 45m

$2,305

DenverKo Samui

DEN - USM

DENUSM

Denver Intl

mar. 2/10

11:40 am-9:20 am

3 stops31h 40m

Ko Samui

dim. 3/29

3:50 pm-1:57 pm

3 stops35h 07m

$2,738

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Best time to book a flight from Colorado to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Colorado 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 Colorado to Ko Samui

What is the cheapest time of day to fly from CO to USM?

Find hourly flight availability from Colorado 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 février 3, 2026.

One of the essential ways to save on airfare from Colorado to Ko Samui is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 41% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Colorado to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Colorado to Ko Samui flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday mornings 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 Colorado to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Colorado?

    Ko Samui (USM), located 2.1 mi from the city center, is the airport you fly into when you book flights from Colorado to Ko Samui.

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

    Airlines like Qatar Airways fly from Colorado to Ko Samui in about 31h 40m. The time it takes to get you to your destination can typically vary by up to . Colorado and Ko Samui are separated by a distance of 8668 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado 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

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 Colorado to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Suvarnabhumi flights
John F Kennedy Intl to Suvarnabhumi flights
Seattle to Suvarnabhumi flights
Newark to Suvarnabhumi flights
Dallas/Fort Worth to Suvarnabhumi flights
LaGuardia to Suvarnabhumi flights
O'Hare Intl to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Dulles Intl to Suvarnabhumi flights
Hobby to Suvarnabhumi flights
Boston to Suvarnabhumi flights
Miami to Suvarnabhumi flights
Ontario to Suvarnabhumi flights
Love Field to Suvarnabhumi flights
Atlanta to Suvarnabhumi flights
George Bush Intcntl to Suvarnabhumi flights
Reagan-National to Suvarnabhumi flights
Baltimore to Suvarnabhumi flights
John F Kennedy Intl to Don Mueang Intl flights
Denver to Suvarnabhumi flights
Midway to Suvarnabhumi flights
Los Angeles to Don Mueang Intl flights
Orlando to Suvarnabhumi flights
Minneapolis to Suvarnabhumi flights
Sky Harbor Intl to Suvarnabhumi flights
Santa Ana to Suvarnabhumi flights
John F Kennedy Intl to Phuket City flights
Honolulu to Suvarnabhumi flights
Las Vegas to Suvarnabhumi flights
O'Hare Intl to Don Mueang Intl flights
Dulles Intl to Don Mueang Intl flights
Portland to Suvarnabhumi flights
San Francisco to Don Mueang Intl flights
San Jose to Suvarnabhumi flights
Detroit to Suvarnabhumi flights
Raleigh to Suvarnabhumi flights
Charlotte to Suvarnabhumi flights
Austin to Suvarnabhumi flights
Newark to Phuket City flights
Newark to Don Mueang Intl flights
Tampa to Suvarnabhumi flights
Boston to Don Mueang Intl flights
Los Angeles to Phuket City flights
Burbank to Suvarnabhumi flights
LaGuardia to Phuket City flights
Seattle to Don Mueang Intl flights
Dallas/Fort Worth to Don Mueang Intl flights
Fort Lauderdale to Suvarnabhumi flights
San Diego to Suvarnabhumi flights
Nashville to Suvarnabhumi flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.