How often are flights from Chicago to Ko Samui delayed?

Historically, on average around 17% 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 127 minutes.

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

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

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

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

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 at night have, in the past, seen delays more frequently in comparison.

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.

$735 Cheap Flights from Chicago to Ko Samui in 2026

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.

2:00 pm - 7:10 am

ORD

USM

29h 10m

2 stops

9:15 am - 8:35 am

USM

ORD

35h 20m

2 stops

$1,028Multiple Airlines

Sat, Aug 29 - Sat, Sep 5

2:00 pm - 7:10 am

ORD

USM

29h 10m

2 stops

11:25 am - 8:35 am

USM

ORD

33h 10m

2 stops

$1,067Multiple Airlines

Sat, Aug 29 - Sat, Sep 5

2:00 pm - 8:25 am

ORD

USM

30h 25m

2 stops

3:25 pm - 8:35 am

USM

ORD

29h 10m

2 stops

$1,097Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

4:00 pm - 6:00 pm

ORD

USM

38h 00m

2 stops

8:00 am - 2:20 pm

USM

ORD

42h 20m

2 stops

$1,124Multiple Airlines

Sun, Aug 30 - Sun, Sep 6

1:10 pm - 10:40 am

ORD

USM

32h 30m

2 stops

7:00 am - 7:55 am

USM

ORD

37h 55m

2 stops

$1,144Multiple Airlines

Mon, Nov 23 - Tue, Dec 8

8:25 pm - 10:30 am

ORD

USM

26h 05m

2 stops

12:10 pm - 8:35 am

USM

ORD

32h 25m

2 stops

$1,147Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

2:00 pm - 7:10 am

ORD

USM

29h 10m

2 stops

11:25 am - 8:35 am

USM

ORD

33h 10m

2 stops

$1,149Multiple Airlines

Sat, Aug 29 - Sat, Sep 5

8:25 pm - 10:30 am

ORD

USM

26h 05m

2 stops

12:10 pm - 8:35 am

USM

ORD

32h 25m

2 stops

$1,154Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

2:00 pm - 7:30 am

ORD

USM

29h 30m

2 stops

2:30 pm - 8:35 am

USM

ORD

30h 05m

2 stops

$1,156Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

11:30 pm - 2:55 pm

ORD

USM

26h 25m

2 stops

7:00 am - 7:35 pm

USM

ORD

25h 35m

2 stops

$1,202EVA Air

Tue, Nov 24 - Tue, Dec 8

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EVA Air flights from Chicago to Ko Samui

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

EVA Air

Nov 24

ORD11:30 pmChicago O'Hare Intl

26h 25m

2 stops

USM2:55 pmKo Samui

Dec 8

USM7:00 amKo Samui

25h 35m

2 stops

ORD7:35 pmChicago O'Hare Intl

$1,202

EVA Air

Nov 24

ORD11:30 pmChicago O'Hare Intl

28h 30m

2 stops

USM5:00 pmKo Samui

Dec 8

USM7:00 amKo Samui

25h 35m

2 stops

ORD7:35 pmChicago O'Hare Intl

$1,216

EVA Air

Nov 24

ORD11:30 pmChicago O'Hare Intl

28h 30m

2 stops

USM5:00 pmKo Samui

Dec 8

USM7:00 amKo Samui

25h 35m

2 stops

ORD7:35 pmChicago O'Hare Intl

$1,217

Cathay Pacific flights from Chicago to Ko Samui

Our best Cathay Pacific deals on Chicago to Ko Samui flight tickets

Cathay Pacific

Aug 30

ORD4:00 pmChicago O'Hare Intl

39h 40m

1 stop

USM7:40 pmKo Samui

Sep 6

USM11:55 amKo Samui

38h 25m

1 stop

ORD2:20 pmChicago O'Hare Intl

$1,469

Cathay Pacific

Aug 30

ORD4:00 pmChicago O'Hare Intl

27h 30m

2 stops

USM7:30 amKo Samui

Sep 6

USM11:55 amKo Samui

38h 25m

1 stop

ORD2:20 pmChicago O'Hare Intl

$1,525

Cathay Pacific

Aug 27

ORD4:00 pmChicago O'Hare Intl

39h 40m

1 stop

USM7:40 pmKo Samui

Sep 3

USM11:55 amKo Samui

38h 25m

1 stop

ORD2:20 pmChicago O'Hare Intl

$1,542

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sat 8/29

2:00 pm-7:10 am

2 stops29h 10m

Ko Samui

Sat 9/5

9:15 am-8:35 am

2 stops35h 20m

$1,028

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sat 8/29

2:00 pm-7:10 am

2 stops29h 10m

Ko Samui

Sat 9/5

11:25 am-8:35 am

2 stops33h 10m

$1,067

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Thu 8/27

2:00 pm-8:25 am

2 stops30h 25m

Ko Samui

Thu 9/3

3:25 pm-8:35 am

2 stops29h 10m

$1,097

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 8/30

4:00 pm-6:00 pm

2 stops38h 00m

Ko Samui

Sun 9/6

8:00 am-2:20 pm

2 stops42h 20m

$1,124

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Mon 11/23

1:10 pm-10:40 am

2 stops32h 30m

Ko Samui

Tue 12/8

7:00 am-7:55 am

2 stops37h 55m

$1,144

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 8/28

8:25 pm-10:30 am

2 stops26h 05m

Ko Samui

Fri 9/4

12:10 pm-8:35 am

2 stops32h 25m

$1,147

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sat 8/29

2:00 pm-7:10 am

2 stops29h 10m

Ko Samui

Sat 9/5

11:25 am-8:35 am

2 stops33h 10m

$1,149

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 8/28

8:25 pm-10:30 am

2 stops26h 05m

Ko Samui

Fri 9/4

12:10 pm-8:35 am

2 stops32h 25m

$1,154

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Thu 8/27

2:00 pm-7:30 am

2 stops29h 30m

Ko Samui

Thu 9/3

2:30 pm-8:35 am

2 stops30h 05m

$1,156

Quickest round-trip

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Tue 11/24

11:30 pm-2:55 pm

2 stops26h 25m

Ko Samui

Tue 12/8

7:00 am-7:35 pm

2 stops25h 35m

$1,202

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

EVA Air, Cathay Pacific, and Malaysia Airlines are the most popular carriers 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

Fastest flight time	24h 00m
Direct flights	None

The fastest flight from Chicago to Ko Samui takes 24h 00m

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

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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. 24h 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 Pha Ngan

Ko Tao

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 $735

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 8/28. 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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EVA Air flights from Chicago to Ko Samui

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

Cathay Pacific flights from Chicago to Ko Samui

Our best Cathay Pacific 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

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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.

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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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