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Cheap flights from Ko Samui to Chicago from ฿40,903

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
20 Jun — 27 Jun1
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 15 June 2025.

Round-trip from

฿40,903
22/7-9/9
  • 22/7-9/9
  • 4 total stops
  • 61h 40m 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 15 June 2025.

Tue 22/717:40USM - ORD
2 stops30h 30mMultiple Airlines
Tue 9/921:40ORD - USM
2 stops31h 10mMultiple Airlines
Deal found 14/6฿40,903
Fri 12/919:15USM - ORD
2 stops37h 30mEVA Air
Tue 14/1000:30ORD - USM
2 stops27h 15mEVA Air
Deal found 13/6฿45,454
Fri 12/908:00USM - ORD
2 stops43h 45mEmirates
Wed 15/1020:35ORD - USM
2 stops32h 20mEmirates
Deal found 13/6฿46,262
Tue 22/710:55USM - ORD
1 stop39h 30mCathay Pacific
Tue 9/916:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 14/6฿60,079

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 15 June 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

Tue 22/7

17:40-12:10

2 stops30h 30m

Chicago O'Hare Intl

Tue 9/9

21:40-16:50

2 stops31h 10m

฿40,903

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

19:15-20:45

2 stops37h 30m

Chicago O'Hare Intl

Tue 14/10

00:30-15:45

2 stops27h 15m

฿45,454

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

08:00-15:45

2 stops43h 45m

Chicago O'Hare Intl

Wed 15/10

20:35-16:55

2 stops32h 20m

฿46,262

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 22/7

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Tue 9/9

16:00-18:35

1 stop38h 35m

฿60,079

Flights are sorted by cheapest return flights first.

Deals found on 14/6

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 15 June 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).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 15 June 2025.
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,204 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,266 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Cathay Pacific
7.6
Good
892 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

See more FAQs

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Alternative routes for Ko Samui to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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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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