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$822+ Cheap flights from Ko Samui (USM) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
1 adult, Economy
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Cheap flight deals from Ko Samui to Chicago

Cheapest flights from Ko Samui to Chicago
Explore the most affordable flight options available from Ko Samui to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.

This Qatar Airways deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:15 pm
USM
-
ORD
2 stops33h 15m
Qatar Airways
Mon 11/96:50 pm
ORD
-
USM
2 stops31h 20m
Qatar Airways
Deal found 5/12$1,344

Find flight deals from Ko Samui to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,344
(Qatar Airways)

One-way from

$822
(Kiwi.com)
Provider with most accurate pricing for Ko Samui-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Ko Samui-Chicago (CHI) flights.
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From Ko Samui to Chicago (CHI)
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One-way flight from Ko Samui to Chicago (CHI)
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated May 13, 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
Quickest round-trip

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 11/6

6:15 pm-2:30 pm

2 stops33h 15m

Chicago O'Hare Intl

Mon 11/9

6:50 pm-1:50 pm

2 stops30h 00m

$1,345
Cheapest one-way

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 11/8

9:10 pm-5:40 am

3 stops45h 30m

$822

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 5/17

7:00 pm-6:39 am

3 stops47h 39m

$858
Quickest one-way

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 5/17

11:55 am-1:55 pm

1 stop38h 00m

$1,057

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Ko Samui-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ko Samui-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ko Samui-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ko Samui-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ko Samui-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ko Samui to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Ko Samui with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to Chicago
No data available for this route at this time. Please check back soon.

The best insider tips for Ko Samui to Chicago flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Ko Samui to Chicago trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ko Samui to Chicago?

    Ko Samui (USM) is the airport you will fly out of if you book a flight from Ko Samui to Chicago. You should not have trouble finding flights to Chicago from Ko Samui; the airport handles an average of 0 outbound flights to Chicago per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ko Samui airport to Chicago. It is only a 2.1 mi journey to Ko Samui (USM) from Ko Samui’s city center.

  • How long is the flight from Ko Samui to Chicago?

    Airlines like Qatar Airways fly from Ko Samui to Chicago in about 33h 15m. The time it takes to get you to your destination can typically vary by up to . Ko Samui and Chicago are separated by a distance of 8835 mi.

  • Can I find deals for flights from Ko Samui to Chicago that include hotel bookings?

    Yes. In addition to deals on Ko Samui to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ko Samui to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Chicago.

  • Can I find deals for business class flights from Ko Samui to Chicago?

    Yes. Cheapflights offers flight deals from Ko Samui to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
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Lansing
Merrillville
Hammond
Porter

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