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

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

How often are flights from Chicago to Ko Samui delayed?

Historically, on average around 21% of flights between Chicago and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

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. Monday has historically seen more delays on average compared to the rest of the week.

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

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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.

$489 Cheap Flights from Chicago to Ko Samui in 2026/27

Find the cheapest flights from Chicago to Ko Samui

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

4:30 pm - 1:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

33h 00m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$882Multiple Airlines

Wed, Mar 10 - Tue, Mar 16

4:15 pm - 7:40 pmORD Chicago O'Hare Intl-USM Ko Samui

39h 25m1 stop Hong Kong Intl

9:15 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

40h 40m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$882Multiple Airlines

Sun, Oct 11 - Sun, Oct 18

2:10 pm - 7:35 pmORD Chicago O'Hare Intl-USM Ko Samui

40h 25m1 stop Hong Kong Intl

12:15 pm - 1:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

37h 15m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$882Multiple Airlines

Wed, Mar 10 - Tue, Mar 16

3:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

10:20 am - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

39h 10m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$882Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

4:15 pm - 12:45 pmORD Chicago O'Hare Intl-USM Ko Samui

32h 30m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:15 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

40h 40m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$882Multiple Airlines

Sun, Oct 11 - Sun, Oct 18

2:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

8:20 pm - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

29h 10m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$893Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

2:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

1:45 pm - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

35h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$896Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

2:10 pm - 7:35 pmORD Chicago O'Hare Intl-USM Ko Samui

40h 25m1 stop Hong Kong Intl

1:45 pm - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

35h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$896Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

2:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:10 pm - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

28h 20m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$903Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

2:10 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

4:30 pm - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

33h 00m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$932Multiple Airlines

Wed, Feb 24 - Thu, Mar 4

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Turkish Airlines flights from Chicago to Ko Samui

Our best Turkish Airlines deals on Chicago to Ko Samui flight tickets

Turkish Airlines

Oct 19

ORD11:25 amChicago O'Hare Intl

32h 50m

2 stops

USM8:15 amKo Samui

Oct 22

USM2:35 pmKo Samui

31h 05m

2 stops

ORD9:40 amChicago O'Hare Intl

$1,225

Turkish Airlines

Oct 19

ORD8:10 pmChicago O'Hare Intl

37h 00m

2 stops

USM9:10 pmKo Samui

Oct 22

USM3:50 pmKo Samui

29h 50m

2 stops

ORD9:40 amChicago O'Hare Intl

$1,247

Turkish Airlines

Oct 19

ORD8:10 pmChicago O'Hare Intl

27h 30m

2 stops

USM11:40 amKo Samui

Oct 22

USM5:25 pmKo Samui

28h 15m

2 stops

ORD9:40 amChicago O'Hare Intl

$1,275

EVA Air flights from Chicago to Ko Samui

Our best EVA Air deals on Chicago to Ko Samui flight tickets

EVA Air

Sep 26

ORD12:30 amChicago O'Hare Intl

26h 15m

2 stops

USM2:45 pmKo Samui

Sep 30

USM9:00 pmKo Samui

35h 45m

2 stops

ORD8:45 pmChicago O'Hare Intl

$1,157

EVA Air

Oct 18

ORD12:30 amChicago O'Hare Intl

26h 55m

2 stops

USM3:25 pmKo Samui

Oct 22

USM6:00 amKo Samui

26h 45m

2 stops

ORD8:45 pmChicago O'Hare Intl

$1,281

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Wed 3/10

2:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Tue 3/16

4:30 pm-1:30 pm

2 stops33h 00m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Sun 10/11

4:15 pm-7:40 pm

1 stop39h 25m

Ko Samui

Sun 10/18

9:15 am-1:55 pm

2 stops40h 40m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Wed 3/10

2:10 pm-7:35 pm

1 stop40h 25m

Ko Samui

Tue 3/16

12:15 pm-1:30 pm

2 stops37h 15m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Wed 10/28

3:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Wed 11/4

10:20 am-12:30 pm

2 stops39h 10m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Sun 10/11

4:15 pm-12:45 pm

2 stops32h 30m

Ko Samui

Sun 10/18

9:15 am-1:55 pm

2 stops40h 40m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Tue 12/8

8:20 pm-12:30 pm

2 stops29h 10m

$893

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Tue 12/8

1:45 pm-12:30 pm

2 stops35h 45m

$896

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:10 pm-7:35 pm

1 stop40h 25m

Ko Samui

Tue 12/8

1:45 pm-12:30 pm

2 stops35h 45m

$896

Quickest round-trip

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Tue 12/8

9:10 pm-12:30 pm

2 stops28h 20m

$903

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Wed 2/24

2:10 pm-7:10 am

2 stops28h 00m

Ko Samui

Thu 3/4

4:30 pm-12:30 pm

2 stops33h 00m

$932

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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 Chicago to Ko Samui?

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

When to book flights from Chicago to Ko Samui

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

Estimated round-trip price

Cheap Chicago to Ko Samui (CHI to USM) flight deals and tips

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

Best Price Found	$489
Fastest flight time	28h 00m
Direct flights	None

The best one-way flight to Ko Samui from Chicago in the past 72 hours is $489. The best round-trip flight deal from Chicago to Ko Samui found on momondo in the last 72 hours is $882.

The fastest flight from Chicago to Ko Samui takes 28h 00m

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

Search flight deals

Frequently asked questions about flying from Chicago to Ko Samui

How far is Chicago to Ko Samui by plane?
There are 8846.2 mi between Chicago and Ko Samui. 28h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago to Ko Samui Airport?
Prices for flights from Chicago to Ko Samui Airport were last updated today.
How old do you have to be to fly from Chicago to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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 Tao

Ko Pha Ngan

Khanom

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Ko Samui from Chicago with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from Chicago.

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

Yes momondo offers price alerts on flights to Ko Samui from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Chicago to Ko Samui from $489

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Ko Samui departing on 2/14. 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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Turkish Airlines flights from Chicago to Ko Samui

Our best Turkish Airlines deals on Chicago to Ko Samui flight tickets

EVA Air flights from Chicago to Ko Samui

Our best EVA Air deals on Chicago to Ko Samui flight tickets

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

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

How often are flights from Chicago to Ko Samui delayed?

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

When to book flights from Chicago to Ko Samui

Cheap Chicago to Ko Samui (CHI to USM) flight deals and tips

Best Price Found

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Direct flights

Frequently asked questions about flying from Chicago 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

Airports servicing Thailand

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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