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.

$1,171 Cheap Flights from Ko Samui to Illinois in 2025/26

1 adult

0 bags

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Find the cheapest flights from Ko Samui to Illinois

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 pm - 2:00 pmUSM-ORD

54h 15m2 stops

10:35 pm - 1:05 pmORD-USM

49h 30m2 stops

$1,171Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

10:00 am - 7:35 pmUSM-ORD

22h 35m2 stops

11:30 pm - 3:40 pmORD-USM

27h 10m2 stops

$1,289EVA Air

Find Deal

Sun, Nov 9 - Thu, Nov 13

9:35 am - 7:35 pmUSM-ORD

23h 00m2 stops

11:30 pm - 3:35 pmORD-USM

27h 05m2 stops

$1,295EVA Air

Find Deal

Sun, Nov 9 - Thu, Nov 13

1:25 pm - 4:20 pmUSM-ORD

39h 55m2 stops

6:35 pm - 2:55 pmORD-USM

31h 20m3 stops

$1,434Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

11:40 am - 12:55 pmUSM-ORD

38h 15m1 stop

11:50 am - 6:15 pmORD-USM

41h 25m2 stops

$1,475Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

7:00 am - 6:25 amUSM-ORD

36h 25m3 stops

8:20 am - 8:05 amORD-USM

34h 45m3 stops

$1,509Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

11:40 am - 12:55 pmUSM-ORD

38h 15m1 stop

2:35 pm - 7:35 pmORD-USM

40h 00m1 stop

$1,634Cathay Pacific

Find Deal

Wed, Nov 26 - Wed, Dec 3

EVA Air flights from Ko Samui to Illinois

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

EVA Air

Nov 9

USM10:00 amKo Samui

22h 35m

2 stops

ORD7:35 pmChicago O'Hare Intl

Nov 13

ORD11:30 pmChicago O'Hare Intl

27h 10m

2 stops

USM3:40 pmKo Samui

$1,289

Find similar

EVA Air

Nov 9

USM9:35 amKo Samui

23h 00m

2 stops

ORD7:35 pmChicago O'Hare Intl

Nov 13

ORD11:30 pmChicago O'Hare Intl

27h 05m

2 stops

USM3:35 pmKo Samui

$1,295

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 11/26

8:45 pm-2:00 pm

2 stops54h 15m

Chicago O'Hare Intl

Wed 12/3

10:35 pm-1:05 pm

2 stops49h 30m

$1,171

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 11/9

10:00 am-7:35 pm

2 stops22h 35m

Chicago O'Hare Intl

Thu 11/13

11:30 pm-3:40 pm

2 stops27h 10m

$1,289

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 11/9

9:35 am-7:35 pm

2 stops23h 00m

Chicago O'Hare Intl

Thu 11/13

11:30 pm-3:35 pm

2 stops27h 05m

$1,295

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 11/26

1:25 pm-4:20 pm

2 stops39h 55m

Chicago O'Hare Intl

Wed 12/3

6:35 pm-2:55 pm

3 stops31h 20m

$1,434

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 11/26

11:40 am-12:55 pm

1 stop38h 15m

Chicago O'Hare Intl

Wed 12/3

11:50 am-6:15 pm

2 stops41h 25m

$1,475

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 11/26

7:00 am-6:25 am

3 stops36h 25m

Chicago O'Hare Intl

Wed 12/3

8:20 am-8:05 am

3 stops34h 45m

$1,509

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 11/26

11:40 am-12:55 pm

1 stop38h 15m

Chicago O'Hare Intl

Wed 12/3

2:35 pm-7:35 pm

1 stop40h 00m

$1,634

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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

Direct flights	None

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

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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.