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Cheap flights from Ko Samui to Chicago from $1,432

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ko Samui to Chicago departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ko Samui to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
EVA Air Logo
9:15 am - 8:45 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
23h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 8:30 pmORD  Chicago O'Hare Intl-USM Ko Samui
32h 00m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,432EVA Air
Wed, Sep 23 - Sat, Sep 26
EVA Air Logo
9:15 am - 8:45 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
23h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 8:30 pmORD  Chicago O'Hare Intl-USM Ko Samui
32h 00m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,436EVA Air
Wed, Sep 23 - Sat, Sep 26
EVA Air Logo
8:45 am - 8:45 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
24h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 8:50 pmORD  Chicago O'Hare Intl-USM Ko Samui
32h 20m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,438EVA Air
Wed, Sep 23 - Sat, Sep 26
EVA Air Logo
8:45 am - 8:45 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
24h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:30 am - 3:25 pmORD  Chicago O'Hare Intl-USM Ko Samui
26h 55m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,493EVA Air
Sat, Sep 5 - Fri, Sep 11
Cathay Pacific Logo
11:55 am - 2:20 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
38h 25m1 stop Hong Kong Intl
Cathay Pacific Logo
4:00 pm - 7:40 pmORD  Chicago O'Hare Intl-USM Ko Samui
39h 40m1 stop Hong Kong Intl
$1,617Cathay Pacific
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
2:35 pm - 2:20 pmUSM  Ko Samui-ORD Chicago O'Hare Intl
35h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl
Multiple Airlines Logo
4:00 pm - 7:40 pmORD  Chicago O'Hare Intl-USM Ko Samui
39h 40m1 stop Hong Kong Intl
$1,624Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
11:05 am - 7:20 amUSM  Ko Samui-ORD Chicago O'Hare Intl
32h 15m3 stops Singapore Changi Kuala Lumpur Intl Tokyo Narita
Multiple Airlines Logo
2:00 pm - 8:15 amORD  Chicago O'Hare Intl-USM Ko Samui
30h 15m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
$1,628Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
11:05 am - 7:20 amUSM  Ko Samui-ORD Chicago O'Hare Intl
32h 15m3 stops Singapore Changi Kuala Lumpur Intl Tokyo Narita
Multiple Airlines Logo
10:15 am - 10:10 amORD  Chicago O'Hare Intl-USM Ko Samui
35h 55m3 stops Tokyo Narita Taipei City Taiwan Taoyuan Intl Singapore Changi
$1,964Multiple Airlines
Sat, Sep 5 - Sat, Sep 12

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EVA Air flights from Ko Samui to Chicago

Our best EVA Air deals on Ko Samui to Chicago flight tickets
EVA Air
Sep 23
USM8:45 amKo Samui
24h 00m
2 stops
ORD8:45 pmChicago O'Hare Intl
Sep 26
ORD12:30 amChicago O'Hare Intl
32h 20m
2 stops
USM8:50 pmKo Samui
$1,434
EVA Air
Sep 23
USM9:15 amKo Samui
23h 30m
2 stops
ORD8:45 pmChicago O'Hare Intl
Sep 26
ORD12:30 amChicago O'Hare Intl
32h 00m
2 stops
USM8:30 pmKo Samui
$1,436
EVA Air
Sep 23
USM8:45 amKo Samui
24h 00m
2 stops
ORD8:45 pmChicago O'Hare Intl
Sep 26
ORD12:30 amChicago O'Hare Intl
32h 20m
2 stops
USM8:50 pmKo Samui
$1,438

momondo Fare Finder

 
Customize your flight search to find flights from Ko Samui to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Ko Samui to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Wed 9/23

9:15 am-8:45 pm

2 stops23h 30m

Chicago O'Hare Intl

Sat 9/26

12:30 am-8:30 pm

2 stops32h 00m

$1,432

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Wed 9/23

9:15 am-8:45 pm

2 stops23h 30m

Chicago O'Hare Intl

Sat 9/26

12:30 am-8:30 pm

2 stops32h 00m

$1,436

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Wed 9/23

8:45 am-8:45 pm

2 stops24h 00m

Chicago O'Hare Intl

Sat 9/26

12:30 am-8:50 pm

2 stops32h 20m

$1,438
Quickest round-trip

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Sat 9/5

8:45 am-8:45 pm

2 stops24h 00m

Chicago O'Hare Intl

Fri 9/11

12:30 am-3:25 pm

2 stops26h 55m

$1,493

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Sat 9/5

11:55 am-2:20 pm

1 stop38h 25m

Chicago O'Hare Intl

Sat 9/12

4:00 pm-7:40 pm

1 stop39h 40m

$1,617

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Sat 9/5

2:35 pm-2:20 pm

2 stops35h 45m

Chicago O'Hare Intl

Sat 9/12

4:00 pm-7:40 pm

1 stop39h 40m

$1,624

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Sat 9/5

11:05 am-7:20 am

3 stops32h 15m

Chicago O'Hare Intl

Sat 9/12

2:00 pm-8:15 am

2 stops30h 15m

$1,628

Ko SamuiChicago

USM Ko Samui - ORD Chicago O'Hare Intl

USMORD

Ko Samui

Sat 9/5

11:05 am-7:20 am

3 stops32h 15m

Chicago O'Hare Intl

Sat 9/12

10:15 am-10:10 am

3 stops35h 55m

$1,964

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

33h 15m

Direct flights

None
The fastest flight from Ko Samui to Chicago takes 33h 15m
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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Frequently asked questions about flying from Ko Samui to Chicago

  • 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 33h 15m.

  • 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.

Frequently asked questions about flying from Ko Samui to Chicago

  • How do I get Price Alerts for flights from Ko Samui to Chicago?

    Price Alerts will notify you by email when the price for flights to Chicago from Ko Samui decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Ko Samui to Chicago with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Portage
Benton Harbor
Lansing
Saint Joseph
Valparaiso
Schererville
Munster
Chesterton
Monticello
Crown Point
Porter
Griffith
Saint John

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.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport