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

Prices for flights from Ko Samui Airport to Chicago are updated daily.

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

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 Ko Samui Airport to Chicago.

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

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$96 Cheap Flights from Ko Samui to Chicago in 2025/26

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0 bags

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Find the cheapest flights from Ko Samui to Chicago

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 am - 9:00 pm

USM

ORD

24h 50m2 stops

12:30 am - 1:45 pm

ORD

USM

25h 15m2 stops

$1,388EVA Air

Wed, Apr 15 - Sat, Apr 18

Cathay Pacific flights from Ko Samui to Chicago

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

Cathay Pacific

Dec 23

USM5:25 pmKo Samui

32h 30m

2 stops

ORD12:55 pmChicago O'Hare Intl

Dec 28

ORD2:35 pmChicago O'Hare Intl

40h 00m

1 stop

USM7:35 pmKo Samui

$2,761

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Cathay Pacific

Dec 23

USM11:40 amKo Samui

38h 15m

1 stop

ORD12:55 pmChicago O'Hare Intl

Dec 28

ORD2:35 pmChicago O'Hare Intl

40h 00m

1 stop

USM7:35 pmKo Samui

$3,199

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 4/15

8:10 am-9:00 pm

2 stops24h 50m

Chicago O'Hare Intl

Sat 4/18

12:30 am-1:45 pm

2 stops25h 15m

$1,388

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 1/4

7:45 pm-6:25 pm

3 stops59h 40m

$1,482

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 1/4

7:45 pm-7:35 am

2 stops48h 50m

$2,150

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Ko Samui to Chicago

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 Chicago?

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as $347. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ko Samui to Chicago for around $697.

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

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Ko Samui to Chicago during this time can be as low as $189. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $492.

When to book flights from Ko Samui to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Ko Samui to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ko Samui to Chicago (USM to CHI) flight deals and tips

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

Fastest flight time	35h 40m
Direct flights	None

The fastest flight from Ko Samui to Chicago takes 35h 40m

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

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How far is Ko Samui to Chicago by plane?
There are 8846.2 mi between Ko Samui and Chicago. By plane, this route typically takes 35h 40m.
When did momondo last update prices for flights from Ko Samui Airport to Chicago?
Prices for flights from Ko Samui Airport to Chicago are updated daily.
How old do you have to be to fly from Ko Samui Airport to Chicago?
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 Ko Samui Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

Finding the right flight to Chicago 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 Chicago quick and easy, saving you time and money.

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

Flights from Ko Samui to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ko Samui to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ko Samui to Chicago right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ko Samui to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.