Which airline has the best punctuality record on Chicago to Ko Samui flights?

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

What is the most punctual flight time for Chicago to Ko Samui flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

How often are flights from Chicago to Ko Samui delayed?

Historically, on average around 23% of flights between Chicago and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ko Samui Airport?

Prices for flights from Chicago O'Hare Intl Airport to Ko Samui Airport are refreshed on a daily basis.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Ko Samui Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$489 Cheap Flights from Chicago O'Hare Intl Airport to Ko Samui in 2026

Find the cheapest flights from Chicago O'Hare Intl Airport to Ko Samui

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:00 pm - 8:15 amORD Chicago O'Hare Intl-USM Ko Samui

28h 15m2 stops Hong Kong Intl Bangkok Suvarnabhumi

2:35 pm - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

35h 20m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$851Multiple Airlines

Tue, Sep 8 - Wed, Sep 16

4:00 pm - 8:15 amORD Chicago O'Hare Intl-USM Ko Samui

28h 15m2 stops Hong Kong Intl Bangkok Suvarnabhumi

11:55 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

38h 00m1 stop Hong Kong Intl

$882Multiple Airlines

Tue, Sep 8 - Wed, Sep 16

4:00 pm - 7:40 pmORD Chicago O'Hare Intl-USM Ko Samui

39h 40m1 stop Hong Kong Intl

11:55 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

38h 00m1 stop Hong Kong Intl

$883Cathay Pacific

Tue, Sep 8 - Wed, Sep 16

2:35 pm - 7:45 amORD Chicago O'Hare Intl-USM Ko Samui

28h 10m2 stops Hong Kong Intl Bangkok Suvarnabhumi

8:30 pm - 12:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

29h 25m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$893Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

4:00 pm - 8:15 amORD Chicago O'Hare Intl-USM Ko Samui

28h 15m2 stops Hong Kong Intl Bangkok Suvarnabhumi

11:55 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

38h 00m1 stop Hong Kong Intl

$901Multiple Airlines

Tue, Sep 8 - Wed, Sep 16

4:00 pm - 7:40 pmORD Chicago O'Hare Intl-USM Ko Samui

39h 40m1 stop Hong Kong Intl

11:55 am - 2:20 pmUSM Ko Samui-ORD Chicago O'Hare Intl

38h 25m1 stop Hong Kong Intl

$934Cathay Pacific

Tue, Sep 1 - Tue, Sep 8

4:15 pm - 8:15 amORD Chicago O'Hare Intl-USM Ko Samui

28h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

3:50 pm - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

34h 05m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$943Multiple Airlines

Sun, Oct 4 - Sun, Oct 11

2:35 pm - 7:55 amORD Chicago O'Hare Intl-USM Ko Samui

28h 20m2 stops Hong Kong Intl Bangkok Suvarnabhumi

7:00 pm - 12:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

30h 55m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$953Multiple Airlines

Mon, Jan 11 - Sun, Jan 24

4:00 pm - 7:40 pmORD Chicago O'Hare Intl-USM Ko Samui

39h 40m1 stop Hong Kong Intl

11:55 am - 2:20 pmUSM Ko Samui-ORD Chicago O'Hare Intl

38h 25m1 stop Hong Kong Intl

$960Cathay Pacific

Tue, Sep 1 - Tue, Sep 8

4:00 pm - 2:45 pmORD Chicago O'Hare Intl-USM Ko Samui

34h 45m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:15 am - 1:55 pmUSM Ko Samui-ORD Chicago O'Hare Intl

40h 40m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$966Multiple Airlines

Mon, Aug 31 - Tue, Sep 29

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Cathay Pacific flights from Chicago O'Hare Intl Airport to Ko Samui

Our best Cathay Pacific deals on Chicago O'Hare Intl Airport to Ko Samui flight tickets

Cathay Pacific

Sep 8

ORD4:00 pmChicago O'Hare Intl

39h 40m

1 stop

USM7:40 pmKo Samui

Sep 16

USM11:55 amKo Samui

38h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$882

Cathay Pacific

Sep 8

ORD4:00 pmChicago O'Hare Intl

39h 40m

1 stop

USM7:40 pmKo Samui

Sep 16

USM11:55 amKo Samui

38h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$883

Cathay Pacific

Sep 1

ORD4:00 pmChicago O'Hare Intl

39h 40m

1 stop

USM7:40 pmKo Samui

Sep 8

USM11:55 amKo Samui

38h 25m

1 stop

ORD2:20 pmChicago O'Hare Intl

$934

EVA Air flights from Chicago O'Hare Intl Airport to Ko Samui

Our best EVA Air deals on Chicago O'Hare Intl Airport to Ko Samui flight tickets

EVA Air

Sep 29

ORD12:30 amChicago O'Hare Intl

26h 40m

2 stops

USM3:10 pmKo Samui

Oct 7

USM8:45 amKo Samui

24h 00m

2 stops

ORD8:45 pmChicago O'Hare Intl

$1,032

EVA Air

Sep 27

ORD12:30 amChicago O'Hare Intl

26h 15m

2 stops

USM2:45 pmKo Samui

Oct 5

USM6:00 amKo Samui

26h 45m

2 stops

ORD8:45 pmChicago O'Hare Intl

$1,036

EVA Air

Sep 29

ORD12:30 amChicago O'Hare Intl

28h 00m

2 stops

USM4:30 pmKo Samui

Oct 7

USM9:15 amKo Samui

23h 30m

2 stops

ORD8:45 pmChicago O'Hare Intl

$1,042

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/8

4:00 pm-8:15 am

2 stops28h 15m

Ko Samui

Wed 9/16

2:35 pm-1:55 pm

2 stops35h 20m

$851

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/8

4:00 pm-8:15 am

2 stops28h 15m

Ko Samui

Wed 9/16

11:55 am-1:55 pm

1 stop38h 00m

$882

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/8

4:00 pm-7:40 pm

1 stop39h 40m

Ko Samui

Wed 9/16

11:55 am-1:55 pm

1 stop38h 00m

$883

Quickest round-trip

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:35 pm-7:45 am

2 stops28h 10m

Ko Samui

Tue 12/8

8:30 pm-12:55 pm

2 stops29h 25m

$893

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/8

4:00 pm-8:15 am

2 stops28h 15m

Ko Samui

Wed 9/16

11:55 am-1:55 pm

1 stop38h 00m

$901

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/1

4:00 pm-7:40 pm

1 stop39h 40m

Ko Samui

Tue 9/8

11:55 am-2:20 pm

1 stop38h 25m

$934

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Sun 10/4

4:15 pm-8:15 am

2 stops28h 00m

Ko Samui

Sun 10/11

3:50 pm-1:55 pm

2 stops34h 05m

$943

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Mon 1/11

2:35 pm-7:55 am

2 stops28h 20m

Ko Samui

Sun 1/24

7:00 pm-12:55 pm

2 stops30h 55m

$953

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 9/1

4:00 pm-7:40 pm

1 stop39h 40m

Ko Samui

Tue 9/8

11:55 am-2:20 pm

1 stop38h 25m

$960

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Mon 8/31

4:00 pm-2:45 pm

2 stops34h 45m

Ko Samui

Tue 9/29

9:15 am-1:55 pm

2 stops40h 40m

$966

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Ko Samui

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

Airlines

Delays

What is the cheapest airline that flies from Chicago O'Hare Intl to Ko Samui?

Cathay Pacific and Etihad Airways are the most popular carriers operating from Chicago O'Hare Intl to Ko Samui

When to book flights from Chicago O'Hare Intl Airport to Ko Samui

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

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Ko Samui (ORD to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Ko Samui

Best Price Found	$489
Fastest flight time	27h 35m
Direct flights	None

The best one-way flight to Ko Samui from Chicago O'Hare Intl Airport in the past 72 hours is $489. The best round-trip flight deal from Chicago O'Hare Intl Airport to Ko Samui found on momondo in the last 72 hours is $851.

The fastest flight from Chicago O'Hare Intl Airport to Ko Samui takes 27h 35m

There are no direct flights from Chicago O'Hare Intl Airport to Ko Samui. There are no popular flight routes from Chicago O'Hare Intl Airport to Ko Samui.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Ko Samui

How far is Chicago O'Hare Intl to Ko Samui by plane?
There are 8836.7 mi between Chicago O'Hare Intl and Ko Samui. Typically, this will take 27h 35m by plane in normal conditions.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ko Samui Airport?
Prices for flights from Chicago O'Hare Intl Airport to Ko Samui Airport are refreshed on a daily basis.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Ko Samui. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Ko Samui from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from Chicago.

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

If you are not ready to book a flight from Chicago to Ko Samui now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ko Samui and let you know when they change.

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Cheap flights from Chicago O'Hare Intl Airport to Ko Samui from $489

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Cathay Pacific flights from Chicago O'Hare Intl Airport to Ko Samui

Our best Cathay Pacific deals on Chicago O'Hare Intl Airport to Ko Samui flight tickets

EVA Air flights from Chicago O'Hare Intl Airport to Ko Samui

Our best EVA Air deals on Chicago O'Hare Intl Airport to Ko Samui flight tickets

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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Ko Samui

What is the cheapest airline that flies from Chicago O'Hare Intl to Ko Samui?

How often are flights from Chicago to Ko Samui delayed?

What is the most punctual flight time for Chicago to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Chicago to Ko Samui flights?

When to book flights from Chicago O'Hare Intl Airport to Ko Samui

Cheap Chicago O'Hare Intl Airport to Ko Samui (ORD to USM) flight deals and tips

Best Price Found

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Direct flights

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Ko Samui

Traveling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui trip

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Airports servicing Thailand

Cabin classes currently available on flights to Ko Samui

List of cabin classes available on flights landing in Ko Samui. Availability may vary depending on flight origin and airline.

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