What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Denver to Ko Samui flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

How often are flights from Denver to Ko Samui delayed?

Historically, on average around 23% of flights between Denver and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

What is the most punctual flight time for Denver to Ko Samui flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Denver Intl Airport to Ko Samui Airport?

Prices for flights from Denver Intl Airport to Ko Samui Airport were last updated today.

How old do you have to be to fly from Denver Intl Airport to Ko Samui Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$445 Cheap Flights from Denver to Ko Samui in 2026/27

Find the cheapest flights from Denver to Ko Samui

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 am - 7:35 pmDEN Denver Intl-USM Ko Samui

46h 45m2 stops Chicago O'Hare Intl Hong Kong Intl

11:40 am - 6:15 pmUSM Ko Samui-DEN Denver Intl

44h 35m2 stops Hong Kong Intl Los Angeles

$1,138Multiple Airlines

Wed, Nov 11 - Mon, Nov 16

6:42 pm - 7:40 pmDEN Denver Intl-USM Ko Samui

35h 58m2 stops Los Angeles Hong Kong Intl

11:40 am - 12:46 pmUSM Ko Samui-DEN Denver Intl

38h 06m2 stops Hong Kong Intl Los Angeles

$1,138Multiple Airlines

Thu, Oct 22 - Sat, Oct 31

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

24h 29m2 stops Hong Kong Intl Los Angeles

$1,138Multiple Airlines

Sun, Nov 8 - Sun, Nov 15

6:42 pm - 7:40 pmDEN Denver Intl-USM Ko Samui

35h 58m2 stops Los Angeles Hong Kong Intl

11:40 am - 7:15 pmUSM Ko Samui-DEN Denver Intl

44h 35m2 stops Hong Kong Intl Los Angeles

$1,138Multiple Airlines

Sat, Oct 17 - Sun, Nov 1

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

35h 53m2 stops Los Angeles Hong Kong Intl

11:40 am - 12:46 pmUSM Ko Samui-DEN Denver Intl

38h 06m2 stops Hong Kong Intl Los Angeles

$1,188Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

7:00 am - 7:35 pmDEN Denver Intl-USM Ko Samui

47h 35m2 stops Los Angeles Hong Kong Intl

11:40 am - 5:20 pmUSM Ko Samui-DEN Denver Intl

43h 40m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,188Multiple Airlines

Fri, Oct 30 - Sun, Nov 15

8:00 am - 7:35 pmDEN Denver Intl-USM Ko Samui

46h 35m2 stops Chicago O'Hare Intl Hong Kong Intl

11:40 am - 5:39 pmUSM Ko Samui-DEN Denver Intl

43h 59m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,188Multiple Airlines

Fri, Oct 30 - Sun, Nov 15

7:00 am - 7:40 pmDEN Denver Intl-USM Ko Samui

47h 40m2 stops Los Angeles Hong Kong Intl

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

48h 29m2 stops Hong Kong Intl Los Angeles

$1,194Cathay Pacific

Sun, Oct 18 - Sun, Nov 1

5:45 pm - 1:45 pmDEN Denver Intl-USM Ko Samui

31h 00m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

9:10 pm - 9:27 pmUSM Ko Samui-DEN Denver Intl

38h 17m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Los Angeles

$1,613EVA Air

Sat, Oct 17 - Sun, Nov 1

7:55 am - 6:15 pmDEN Denver Intl-USM Ko Samui

44h 20m3 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

$3,098Singapore Airlines

Thu, Nov 5 - Mon, Nov 9

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Singapore Airlines flights from Denver to Ko Samui

Our best Singapore Airlines deals on Denver to Ko Samui flight tickets

Singapore Airlines

Nov 5

DEN7:55 amDenver Intl

44h 20m

3 stops

USM6:15 pmKo Samui

Nov 9

USM1:25 pmKo Samui

42h 31m

2 stops

DEN5:56 pmDenver Intl

$3,098

Singapore Airlines

Oct 30

DEN5:50 pmDenver Intl

35h 25m

2 stops

USM6:15 pmKo Samui

Nov 15

USM4:25 pmKo Samui

39h 31m

3 stops

DEN5:56 pmDenver Intl

$3,553

Singapore Airlines

Oct 18

DEN8:00 amDenver Intl

45h 15m

3 stops

USM6:15 pmKo Samui

Nov 1

USM1:25 pmKo Samui

42h 31m

3 stops

DEN6:56 pmDenver Intl

$3,798

Qatar Airways flights from Denver to Ko Samui

Our best Qatar Airways deals on Denver to Ko Samui flight tickets

Qatar Airways

Mar 12

DEN2:50 pmDenver Intl

34h 45m

3 stops

USM3:35 pmKo Samui

Mar 20

USM9:10 pmKo Samui

35h 40m

3 stops

DEN7:50 pmDenver Intl

$1,958

Qatar Airways

Oct 30

DEN2:29 pmDenver Intl

32h 01m

3 stops

USM11:30 amKo Samui

Nov 15

USM7:10 pmKo Samui

36h 29m

3 stops

DEN5:39 pmDenver Intl

$2,030

Qatar Airways

Oct 30

DEN12:17 pmDenver Intl

32h 03m

3 stops

USM9:20 amKo Samui

Nov 15

USM9:10 pmKo Samui

34h 29m

3 stops

DEN5:39 pmDenver Intl

$2,113

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Wed 11/11

6:50 am-7:35 pm

2 stops46h 45m

Ko Samui

Mon 11/16

11:40 am-6:15 pm

2 stops44h 35m

$1,138

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Thu 10/22

6:42 pm-7:40 pm

2 stops35h 58m

Ko Samui

Sat 10/31

11:40 am-12:46 pm

2 stops38h 06m

$1,138

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Sun 11/8

7:09 am-7:35 pm

2 stops46h 26m

Ko Samui

Sun 11/15

11:40 am-10:09 pm

2 stops24h 29m

$1,138

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Sat 10/17

6:42 pm-7:40 pm

2 stops35h 58m

Ko Samui

Sun 11/1

11:40 am-7:15 pm

2 stops44h 35m

$1,138

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Sat 10/24

6:42 pm-7:35 pm

2 stops35h 53m

Ko Samui

Sat 10/31

11:40 am-12:46 pm

2 stops38h 06m

$1,188

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Fri 10/30

7:00 am-7:35 pm

2 stops47h 35m

Ko Samui

Sun 11/15

11:40 am-5:20 pm

2 stops43h 40m

$1,188

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Fri 10/30

8:00 am-7:35 pm

2 stops46h 35m

Ko Samui

Sun 11/15

11:40 am-5:39 pm

2 stops43h 59m

$1,188

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Sun 10/18

7:00 am-7:40 pm

2 stops47h 40m

Ko Samui

Sun 11/1

11:40 am-11:09 pm

2 stops48h 29m

$1,194

Quickest round-trip

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Sat 10/17

5:45 pm-1:45 pm

3 stops31h 00m

Ko Samui

Sun 11/1

9:10 pm-9:27 pm

3 stops38h 17m

$1,613

DenverKo Samui

DEN Denver Intl - USM Ko Samui

DENUSM

Denver Intl

Thu 11/5

7:55 am-6:15 pm

3 stops44h 20m

Ko Samui

Mon 11/9

1:25 pm-5:56 pm

2 stops42h 31m

$3,098

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Airlines

Delays

What is the cheapest airline that flies from Denver Intl to Ko Samui?

Cathay Pacific is the most popular carrier operating from Denver Intl to Ko Samui

When to book flights from Denver to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Ko Samui (DEN to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Ko Samui

Best Price Found	$445
Fastest flight time	35h 53m
Direct flights	None

The best one-way flight to Ko Samui from Denver in the past 72 hours is $445. The best round-trip flight deal from Denver to Ko Samui found on momondo in the last 72 hours is $1,138.

The fastest flight from Denver to Ko Samui takes 35h 53m

There are no direct flights from Denver to Ko Samui. There are no popular flight routes from Denver to Ko Samui.

Search flight deals

Frequently asked questions about flying from Denver to Ko Samui

How far is Denver Intl to Ko Samui by plane?
The distance between Denver Intl and Ko Samui is about 8668.4 mi. By plane, this route typically takes 35h 53m.
When did momondo last update prices for flights from Denver Intl Airport to Ko Samui Airport?
Prices for flights from Denver Intl Airport to Ko Samui Airport were last updated today.
How old do you have to be to fly from Denver Intl Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Ko Pha Ngan

Ko Tao

Khanom

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Why should I use momondo to find a flight deal from Denver to Ko Samui?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Ko Samui. momondo saves you time and could save you money on your trip.

Can I find flights from Denver to Ko Samui with flexible booking policies on momondo?

All flight searches from Denver to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denver to Ko Samui?

momondo helps you find the best flight between Denver and Ko Samui by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Denver to Ko Samui right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Denver to Ko Samui now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ko Samui and let you know when they change.

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Cheap flights from Denver to Ko Samui from $445

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Ko Samui departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Denver to Ko Samui

What is the cheapest airline that flies from Denver Intl to Ko Samui?

How often are flights from Denver to Ko Samui delayed?

What is the most punctual flight time for Denver to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Denver to Ko Samui flights?

When to book flights from Denver to Ko Samui

Cheap Denver to Ko Samui (DEN to USM) flight deals and tips

Best Price Found

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Frequently asked questions about flying from Denver to Ko Samui

Traveling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

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Cabin classes currently available on flights to Ko Samui

List of cabin classes available on flights landing in Ko Samui. Availability may vary depending on flight origin and airline.

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