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.

$991 Cheap Flights from Ko Samui to Illinois in 2026/27

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.

9:10 pm - 7:35 pmUSM Ko Samui-ORD Chicago O'Hare Intl

35h 25m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

11:30 pm - 3:35 pmORD Chicago O'Hare Intl-USM Ko Samui

27h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,448EVA Air

Thu, Jan 21 - Mon, Jan 25

9:10 pm - 7:35 pmUSM Ko Samui-ORD Chicago O'Hare Intl

35h 25m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

11:30 pm - 3:35 pmORD Chicago O'Hare Intl-USM Ko Samui

27h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,449EVA Air

Thu, Jan 21 - Mon, Jan 25

8:30 am - 7:35 pmUSM Ko Samui-ORD Chicago O'Hare Intl

24h 05m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

11:30 pm - 3:40 pmORD Chicago O'Hare Intl-USM Ko Samui

27h 10m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,590EVA Air

Thu, Nov 26 - Fri, Dec 4

6:15 pm - 7:35 amUSM Ko Samui-ORD Chicago O'Hare Intl

26h 20m2 stops Phuket City Abu Dhabi Zayed Intl

1:15 pm - 7:10 amORD Chicago O'Hare Intl-USM Ko Samui

28h 55m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

$1,611Etihad Airways

Thu, Nov 26 - Fri, Dec 4

8:30 am - 7:35 pmUSM Ko Samui-ORD Chicago O'Hare Intl

24h 05m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

11:30 pm - 3:40 pmORD Chicago O'Hare Intl-USM Ko Samui

27h 10m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,615EVA Air

Thu, Nov 26 - Fri, Dec 4

8:30 am - 7:35 pmUSM Ko Samui-ORD Chicago O'Hare Intl

24h 05m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

11:30 pm - 3:40 pmORD Chicago O'Hare Intl-USM Ko Samui

27h 10m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,620EVA Air

Thu, Nov 26 - Fri, Dec 4

11:40 am - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

37h 50m1 stop Hong Kong Intl

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

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

$1,909Cathay Pacific

Thu, Jan 21 - Mon, Jan 25

11:40 am - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

37h 50m1 stop Hong Kong Intl

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

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

$1,911Cathay Pacific

Thu, Jan 21 - Mon, Jan 25

11:40 am - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

37h 50m1 stop Hong Kong Intl

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

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

$1,912Cathay Pacific

Thu, Jan 21 - Mon, Jan 25

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

29h 10m2 stops Bangkok Suvarnabhumi Hong Kong Intl

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

40h 25m1 stop Hong Kong Intl

$2,498Multiple Airlines

Thu, Nov 26 - Fri, Dec 4

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EVA Air flights from Ko Samui to Illinois

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

EVA Air

Jan 21

USM9:10 pmKo Samui

35h 25m

2 stops

ORD7:35 pmChicago O'Hare Intl

Jan 25

ORD11:30 pmChicago O'Hare Intl

27h 05m

2 stops

USM3:35 pmKo Samui

$1,448

EVA Air

Jan 21

USM9:10 pmKo Samui

35h 25m

2 stops

ORD7:35 pmChicago O'Hare Intl

Jan 25

ORD11:30 pmChicago O'Hare Intl

27h 05m

2 stops

USM3:35 pmKo Samui

$1,449

EVA Air

Nov 26

USM8:30 amKo Samui

24h 05m

2 stops

ORD7:35 pmChicago O'Hare Intl

Dec 4

ORD11:30 pmChicago O'Hare Intl

27h 10m

2 stops

USM3:40 pmKo Samui

$1,590

Cathay Pacific flights from Ko Samui to Illinois

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

Cathay Pacific

Jan 21

USM11:40 amKo Samui

37h 50m

1 stop

ORD12:30 pmChicago O'Hare Intl

Jan 25

ORD2:10 pmChicago O'Hare Intl

28h 00m

2 stops

USM7:10 amKo Samui

$1,909

Cathay Pacific

Jan 21

USM11:40 amKo Samui

37h 50m

1 stop

ORD12:30 pmChicago O'Hare Intl

Jan 25

ORD2:10 pmChicago O'Hare Intl

28h 00m

2 stops

USM7:10 amKo Samui

$1,911

Cathay Pacific

Jan 21

USM11:40 amKo Samui

37h 50m

1 stop

ORD12:30 pmChicago O'Hare Intl

Jan 25

ORD2:10 pmChicago O'Hare Intl

28h 00m

2 stops

USM7:10 amKo Samui

$1,912

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 1/21

9:10 pm-7:35 pm

2 stops35h 25m

Chicago O'Hare Intl

Mon 1/25

11:30 pm-3:35 pm

2 stops27h 05m

$1,448

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 1/21

9:10 pm-7:35 pm

2 stops35h 25m

Chicago O'Hare Intl

Mon 1/25

11:30 pm-3:35 pm

2 stops27h 05m

$1,449

Quickest round-trip

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 11/26

8:30 am-7:35 pm

2 stops24h 05m

Chicago O'Hare Intl

Fri 12/4

11:30 pm-3:40 pm

2 stops27h 10m

$1,590

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 11/26

6:15 pm-7:35 am

2 stops26h 20m

Chicago O'Hare Intl

Fri 12/4

1:15 pm-7:10 am

2 stops28h 55m

$1,611

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 11/26

8:30 am-7:35 pm

2 stops24h 05m

Chicago O'Hare Intl

Fri 12/4

11:30 pm-3:40 pm

2 stops27h 10m

$1,615

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 11/26

8:30 am-7:35 pm

2 stops24h 05m

Chicago O'Hare Intl

Fri 12/4

11:30 pm-3:40 pm

2 stops27h 10m

$1,620

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 1/21

11:40 am-12:30 pm

1 stop37h 50m

Chicago O'Hare Intl

Mon 1/25

2:10 pm-7:10 am

2 stops28h 00m

$1,909

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 1/21

11:40 am-12:30 pm

1 stop37h 50m

Chicago O'Hare Intl

Mon 1/25

2:10 pm-7:10 am

2 stops28h 00m

$1,911

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 1/21

11:40 am-12:30 pm

1 stop37h 50m

Chicago O'Hare Intl

Mon 1/25

2:10 pm-7:10 am

2 stops28h 00m

$1,912

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Thu 11/26

8:20 pm-12:30 pm

2 stops29h 10m

Chicago O'Hare Intl

Fri 12/4

2:10 pm-7:35 pm

1 stop40h 25m

$2,498

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

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

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

Best Price Found	$991
Fastest flight time	26h 20m
Direct flights	None

The best one-way flight to Illinois from Ko Samui in the past 72 hours is $991. The best round-trip flight deal from Ko Samui to Illinois found on momondo in the last 72 hours is $1,448.

The fastest flight from Ko Samui to Illinois takes 26h 20m

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

Search flight deals

Frequently asked questions about flying 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.

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.