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Cheap flights from Ko Samui to Chicago from ฿45,846

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
25 May — 1 Jun1
1 adult

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 20 May 2025.

Fri 12/914:30USM - ORD
2 stops36h 35mQatar Airways
Wed 15/1019:40ORD - USM
2 stops31h 00mQatar Airways
Deal found 19/5฿45,846
Fri 12/908:45USM - ORD
2 stops24h 00mEVA Air
Tue 14/1000:30ORD - USM
2 stops25h 15mEVA Air
Deal found 19/5฿46,012
Thu 22/508:00USM - ORD
2 stops43h 45mEmirates
Sat 24/520:35ORD - USM
2 stops32h 20mEmirates
Deal found 20/5฿54,889
Thu 22/510:55USM - ORD
1 stop39h 30mCathay Pacific
Sat 24/516:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 20/5฿61,150
Thu 22/513:30USM - ORD
3 stops32h 45mMultiple Airlines
Sat 24/512:15ORD - USM
2 stops35h 40mMultiple Airlines
Deal found 20/5฿69,166

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 20 May 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

14:30-15:05

2 stops36h 35m

Chicago O'Hare Intl

Wed 15/10

19:40-14:40

2 stops31h 00m

฿45,846

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

08:45-20:45

2 stops24h 00m

Chicago O'Hare Intl

Tue 14/10

00:30-13:45

2 stops25h 15m

฿46,012

Flights are sorted by cheapest return flights first.

Deals found on 19/5

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 20 May 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.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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.

  • 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.

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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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