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

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

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

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

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

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 Ko Samui Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$1,245 Cheap Flights from Ko Samui to Illinois in 2026

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Find the cheapest flights from Ko Samui to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:50 pm - 8:45 pm

USM

ORD

35h 55m

2 stops

12:30 am - 1:45 pm

ORD

USM

25h 15m

2 stops

$1,245EVA Air

Wed, Sep 16 - Mon, Sep 21

9:15 am - 8:45 pm

USM

ORD

23h 30m

2 stops

12:30 am - 5:05 pm

ORD

USM

28h 35m

2 stops

$1,275EVA Air

Tue, Sep 15 - Fri, Sep 18

8:10 am - 8:45 pm

USM

ORD

24h 35m

2 stops

12:30 am - 5:05 pm

ORD

USM

28h 35m

2 stops

$1,279EVA Air

Tue, Sep 15 - Fri, Sep 18

7:50 am - 8:45 pm

USM

ORD

24h 55m

2 stops

12:30 am - 8:30 pm

ORD

USM

32h 00m

2 stops

$1,281EVA Air

Tue, Sep 15 - Fri, Sep 18

8:45 am - 8:45 pm

USM

ORD

24h 00m

2 stops

12:30 am - 5:45 pm

ORD

USM

29h 15m

2 stops

$1,289EVA Air

Tue, Sep 15 - Fri, Sep 18

7:00 pm - 3:05 pm

USM

ORD

56h 05m

2 stops

7:20 pm - 10:30 am

ORD

USM

27h 10m

2 stops

$1,512Multiple Airlines

Mon, May 25 - Sat, Jun 6

9:00 pm - 11:10 am

USM

ORD

50h 10m

3 stops

12:30 am - 2:45 pm

ORD

USM

26h 15m

2 stops

$1,514Multiple Airlines

Wed, Sep 16 - Mon, Sep 21

2:30 pm - 3:45 pm

USM

ORD

37h 15m

2 stops

8:35 pm - 4:55 pm

ORD

USM

32h 20m

2 stops

$1,575Emirates

Sun, May 24 - Thu, Jun 4

7:00 pm - 3:45 pm

USM

ORD

56h 45m

2 stops

8:35 pm - 6:00 pm

ORD

USM

33h 25m

2 stops

$1,585Emirates

Sat, May 23 - Sun, Jun 7

6:25 pm - 9:40 am

USM

ORD

27h 15m

2 stops

11:25 am - 9:10 pm

ORD

USM

45h 45m

2 stops

$1,587Turkish Airlines

Sat, May 23 - Fri, Jun 5

EVA Air flights from Ko Samui to Illinois

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

EVA Air

Sep 16

USM8:50 pmKo Samui

35h 55m

2 stops

ORD8:45 pmChicago O'Hare Intl

Sep 21

ORD12:30 amChicago O'Hare Intl

25h 15m

2 stops

USM1:45 pmKo Samui

$1,245

EVA Air

Sep 15

USM9:15 amKo Samui

23h 30m

2 stops

ORD8:45 pmChicago O'Hare Intl

Sep 18

ORD12:30 amChicago O'Hare Intl

28h 35m

2 stops

USM5:05 pmKo Samui

$1,275

EVA Air

Sep 15

USM8:10 amKo Samui

24h 35m

2 stops

ORD8:45 pmChicago O'Hare Intl

Sep 18

ORD12:30 amChicago O'Hare Intl

28h 35m

2 stops

USM5:05 pmKo Samui

$1,279

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 9/16

8:50 pm-8:45 pm

2 stops35h 55m

Chicago O'Hare Intl

Mon 9/21

12:30 am-1:45 pm

2 stops25h 15m

$1,245

Quickest round-trip

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 9/15

9:15 am-8:45 pm

2 stops23h 30m

Chicago O'Hare Intl

Fri 9/18

12:30 am-5:05 pm

2 stops28h 35m

$1,275

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 9/15

8:10 am-8:45 pm

2 stops24h 35m

Chicago O'Hare Intl

Fri 9/18

12:30 am-5:05 pm

2 stops28h 35m

$1,279

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 9/15

7:50 am-8:45 pm

2 stops24h 55m

Chicago O'Hare Intl

Fri 9/18

12:30 am-8:30 pm

2 stops32h 00m

$1,281

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 9/15

8:45 am-8:45 pm

2 stops24h 00m

Chicago O'Hare Intl

Fri 9/18

12:30 am-5:45 pm

2 stops29h 15m

$1,289

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Mon 5/25

7:00 pm-3:05 pm

2 stops56h 05m

Chicago O'Hare Intl

Sat 6/6

7:20 pm-10:30 am

2 stops27h 10m

$1,512

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 9/16

9:00 pm-11:10 am

3 stops50h 10m

Chicago O'Hare Intl

Mon 9/21

12:30 am-2:45 pm

2 stops26h 15m

$1,514

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 5/24

2:30 pm-3:45 pm

2 stops37h 15m

Chicago O'Hare Intl

Thu 6/4

8:35 pm-4:55 pm

2 stops32h 20m

$1,575

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sat 5/23

7:00 pm-3:45 pm

2 stops56h 45m

Chicago O'Hare Intl

Sun 6/7

8:35 pm-6:00 pm

2 stops33h 25m

$1,585

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sat 5/23

6:25 pm-9:40 am

2 stops27h 15m

Chicago O'Hare Intl

Fri 6/5

11:25 am-9:10 pm

2 stops45h 45m

$1,587

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 Ko Samui to Illinois

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

Prices

Airlines

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Ko Samui to Illinois is on a Tuesday when prices can be found for as low as $347. Flights from Ko Samui to Illinois on a Sunday will generally be more expensive and average around $697. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Ko Samui to Illinois during this time can be as low as $189. Flights in the morning are often more expensive with an average ticket price of $492.

Cheap Ko Samui to Illinois flight deals and tips

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

Fastest flight time	27h 50m
Direct flights	None

The fastest flight from Ko Samui to Illinois takes 27h 50m

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

Search flight deals

When did momondo last update prices for flights from Ko Samui Airport to Illinois?
Prices for flights from Ko Samui Airport to Illinois were last updated today.
How old do you have to be to fly from Ko Samui Airport to Illinois?
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 Ko Samui Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Illinois from Ko Samui is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Ko Samui to Illinois flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Ko Samui and Illinois 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 Ko Samui to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ko Samui to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.