How does KAYAK find such low prices on flights from Illinois to Ko Samui?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ko Samui. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ko Samui?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Ko Samui?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ko Samui?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$836 CHEAP FLIGHTS from Illinois to Ko Samui

USM

KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$1,047

Turkish Airlines

Mon 5/4Thu 5/7

ORD - USM • 2 stops

Cheapest one-way

$836

EVA Air

Wed 12/31

ORD - USM • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ko Samui!

Flight Deals

Cheap Flights from Illinois to Ko Samui

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Recent round-trip flight deals from Illinois to Ko Samui

Mon, May 4 - Thu, May 7

11:25 am - 7:10 pm

ORD

USM

43h 45m2 stops

6:25 pm - 6:15 pm

USM

ORD

35h 50m2 stops

$1,047Turkish Airlines

Mon, Mar 9 - Tue, Apr 7

12:30 am - 3:35 pm

ORD

USM

27h 05m2 stops

8:35 pm - 9:00 pm

USM

ORD

36h 25m2 stops

$1,050EVA Air

Sun, Mar 15 - Sun, Mar 22

12:30 am - 2:55 pm

ORD

USM

26h 25m2 stops

8:20 pm - 8:35 pm

USM

ORD

36h 15m2 stops

$1,078EVA Air

Sun, Mar 8 - Wed, Mar 18

9:20 pm - 6:25 pm

ORD

USM

33h 05m2 stops

6:40 pm - 11:05 am

USM

ORD

28h 25m2 stops

$1,104Multiple Airlines

Mon, Jan 26 - Tue, Feb 10

11:30 pm - 5:50 pm

ORD

USM

29h 20m2 stops

9:10 pm - 7:35 pm

USM

ORD

35h 25m2 stops

$1,115EVA Air

Sun, May 3 - Thu, May 7

12:30 am - 1:45 pm

ORD

USM

25h 15m2 stops

7:50 am - 9:00 pm

USM

ORD

25h 10m2 stops

$1,153EVA Air

Fri, Jan 30 - Fri, Feb 6

11:30 pm - 4:25 pm

ORD

USM

27h 55m2 stops

9:20 am - 7:35 pm

USM

ORD

23h 15m2 stops

$1,202EVA Air

Mon, Jan 26 - Tue, Feb 10

2:35 pm - 7:35 pm

ORD

USM

40h 00m1 stop

11:40 am - 12:55 pm

USM

ORD

38h 15m1 stop

$1,342Cathay Pacific

Mon, Mar 16 - Sun, Mar 22

3:35 pm - 7:35 pm

ORD

USM

40h 00m1 stop

7:00 pm - 1:55 pm

USM

ORD

30h 55m2 stops

$1,365Multiple Airlines

Sun, Mar 8 - Wed, Mar 18

3:35 pm - 7:35 pm

ORD

USM

40h 00m1 stop

11:40 am - 1:55 pm

USM

ORD

38h 15m1 stop

$1,397Cathay Pacific

Useful Info

Cheapest flight	$836

Flight from Chicago to Ko Samui

How does KAYAK find such low prices on flights from Illinois to Ko Samui?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ko Samui.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ko Samui?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Ko Samui?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ko Samui?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ko Samui

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

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Return flight deals

Information on the airport you'll fly into in Ko Samui

Ko Samui (USM)

USM

$836 Find Cheap Flights from Illinois to Ko Samui

KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

Everything you should know

Cheap Flights from Illinois to Ko Samui

Recent round-trip flight deals from Illinois to Ko Samui

Recent one-way flight deals from Illinois to Ko Samui

Good to know

FAQs for booking flights from Illinois to Ko Samui

How does KAYAK find such low prices on flights from Illinois to Ko Samui?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ko Samui.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ko Samui?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Ko Samui?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ko Samui?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ko Samui

Information on the airport you'll fly into in Ko Samui

Cabin class types available on flights to Illinois

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

Find direct flights for Ko Samui

Flights to other popular destinations

Flights from domestic origins to Ko Samui

Choose which airport to fly into in Ko Samui

Find deals for your return flight