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Cheap flights from Ko Samui to Chicago from ฿22,938

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
23 Jul — 30 Jul1
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 18 July 2025.

Round-trip from

฿42,173

One-way from

฿22,938
EVA Air
  • EVA Air
  • 10/10-13/10
  • 4 total stops
  • 52h 00m total
  • Ko Samui to Chicago
Search Deals
22/8
  • 22/8
  • 3 total stops
  • 34h 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 18 July 2025.

Fri 10/1008:45USM - ORD
2 stops24h 00mEVA Air
Mon 13/1000:30ORD - USM
2 stops28h 05mEVA Air
Deal found 17/7฿42,173
Sun 31/809:15USM - ORD
3 stops32h 25mMultiple Airlines
Sat 6/901:05ORD - USM
2 stops43h 10mMultiple Airlines
Deal found 17/7฿45,064
Fri 12/910:55USM - ORD
1 stop39h 30mCathay Pacific
Wed 15/1016:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 18/7฿47,956
Fri 12/919:00USM - ORD
2 stops26h 40mเตอร์กิชแอร์ไลน์
Wed 15/1019:50ORD - USM
2 stops25h 30mเตอร์กิชแอร์ไลน์
Deal found 18/7฿48,508
Fri 10/1016:25USM - ORD
2 stops34h 40mQatar Airways
Tue 14/1019:20ORD - USM
2 stops34h 40mQatar Airways
Deal found 16/7฿57,866

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 18 July 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 10/10

08:45-20:45

2 stops24h 00m

Chicago O'Hare Intl

Mon 13/10

00:30-16:35

2 stops28h 05m

฿42,173

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 31/8

09:15-05:40

3 stops32h 25m

Chicago O'Hare Intl

Sat 6/9

01:05-08:15

2 stops43h 10m

฿45,064

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

฿47,956

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

19:00-09:40

2 stops26h 40m

Chicago O'Hare Intl

Wed 15/10

19:50-09:20

2 stops25h 30m

฿48,508

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 10/10

16:25-15:05

2 stops34h 40m

Chicago O'Hare Intl

Tue 14/10

19:20-18:00

2 stops34h 40m

฿57,866

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 22/8

07:00-05:40

3 stops34h 40m

฿22,938

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 8/8

10:55-14:25

1 stop39h 30m

฿169,698

Flights are sorted by cheapest return flights first.

Deals found on 17/7

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 18 July 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.

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 18 July 2025.
Read through reviews of airlines operating flights from Ko Samui to Chicago, such as EVA Air, Cathay Pacific, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Boarding

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
1,215 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Boarding

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
936 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Boarding

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
Qatar Airways
7.4
Good
3,604 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Boarding

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
เตอร์กิชแอร์ไลน์
7.3
Good
3,906 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Boarding

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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