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Cheap flights from Ko Samui to Chicago from ฿27,130

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 29/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
7 Sep — 14 Sep1
1 adult

Cheap 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 2 September 2025.

Round-trip from

฿47,413

One-way from

฿27,130
Cathay Pacific
  • Cathay Pacific
  • 12/9-15/10
  • 2 total stops
  • 78h 05m total
  • Ko Samui to Chicago
Search Deals
29/11
  • 29/11
  • 3 total stops
  • 49h 15m total
  • Ko Samui to Chicago
Search Deals

Find 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 2 September 2025.

Fri 12/910:55USM - ORD
1 stop39h 30mCathay Pacific
Wed 15/1016:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 2/9฿47,413
Fri 10/1008:00USM - ORD
2 stops24h 45mEVA Air
Mon 13/1000:30ORD - USM
2 stops28h 05mEVA Air
Deal found 1/9฿48,575
Fri 12/910:55USM - ORD
1 stop39h 30mMultiple Airlines
Wed 15/1023:45ORD - USM
2 stops30h 15mMultiple Airlines
Deal found 1/9฿48,995
Fri 10/1010:55USM - ORD
2 stops39h 55mQatar Airways
Tue 14/1019:20ORD - USM
2 stops27h 10mQatar Airways
Deal found 30/8฿57,328

Cheapflights Fare Finder

 
Customise 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 17,341 searches. Data last updated 2 September 2025.
Use the filters below to find and compare flights from Ko Samui to Chicago that are best for you.

Fly from

Ko Samui

Fly to

Chicago

Route

Depart

Return

Price

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Wed 15/10

16:00-18:35

1 stop38h 35m

฿47,413

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 10/10

08:00-20:45

2 stops24h 45m

Chicago O'Hare Intl

Mon 13/10

00:30-16:35

2 stops28h 05m

฿48,575

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Wed 15/10

23:45-18:00

2 stops30h 15m

฿48,995

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sat 29/11

18:15-06:30

3 stops49h 15m

฿27,130

Flights are sorted by cheapest return flights first.

Deals found on 1/9

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 return 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

What is the cheapest time of day to fly from USM to CHI?

Find hourly flight availability from Ko Samui to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ko Samui to Chicago as you normally would.

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?

    Located just 3.3 km from the city centre, Ko Samui is the airport most travellers will use when flying to Chicago from Ko Samui. Booking flights from Ko Samui (USM) to Chicago should be relatively easy as there are 0 daily outbound flights to Chicago from 0 different airlines.

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

    There are many flights that can get you from Ko Samui to Chicago in 24h 45m. Fly via Cathay Pacific or EVA Air to get the fastest option. Ko Samui and Chicago are separated by a distance of 14219 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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

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Alternative routes for Ko Samui to Chicago

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How does Cheapflights help users find flights from Ko Samui to Chicago?

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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Chicago?

Cheapflights helps you find that perfect flight to Chicago from Ko Samui by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ko Samui to Chicago with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ko Samui to Chicago, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ko Samui to Chicago become cheaper?

Not ready to book yet? You can track prices for flights from Ko Samui to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.

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