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Cheap flights from Ko Samui to Chicago O'Hare Intl Airport from ฿38,101

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — ORD
11 Jul — 18 Jul1
1 adult

Cheap flight deals from Ko Samui to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to O'Hare Intl (ORD). 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 6 July 2025.

Round-trip from

฿38,101
ลุฟท์ฮันซ่า
  • ลุฟท์ฮันซ่า
  • 16/9-29/9
  • 4 total stops
  • 93h 45m total
  • Ko Samui to Chicago
Search Deals

Find flight deals from Ko Samui to O'Hare Intl

Cheapest flights from Ko Samui to O'Hare Intl
Explore the most affordable flight options available from Ko Samui to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 July 2025.

Tue 16/913:30USM - ORD
2 stops36h 35mลุฟท์ฮันซ่า
Mon 29/916:00ORD - USM
2 stops57h 10mลุฟท์ฮันซ่า
Deal found 4/7฿38,101
Fri 10/1009:15USM - ORD
2 stops23h 30mEVA Air
Mon 13/1000:30ORD - USM
2 stops27h 15mEVA Air
Deal found 5/7฿42,169
Wed 17/909:15USM - ORD
2 stops42h 40mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 30/919:05ORD - USM
2 stops38h 05mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 4/7฿42,589
Tue 16/917:55USM - ORD
2 stops33h 10mQatar Airways
Wed 1/1019:20ORD - USM
2 stops28h 35mQatar Airways
Deal found 4/7฿45,269
Fri 12/910:55USM - ORD
1 stop39h 30mMultiple Airlines
Wed 15/1016:00ORD - USM
2 stops27h 20mMultiple Airlines
Deal found 5/7฿47,239
Wed 17/910:55USM - ORD
1 stop39h 30mCathay Pacific
Tue 30/916:00ORD - USM
2 stops27h 20mCathay Pacific
Deal found 4/7฿47,400
Tue 16/919:10USM - ORD
2 stops26h 30mเตอร์กิชแอร์ไลน์
Tue 30/919:50ORD - USM
2 stops25h 30mเตอร์กิชแอร์ไลน์
Deal found 4/7฿53,567

Cheapflights Fare Finder

Customise your flight search to find flights from Ko Samui to O'Hare Intl 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 6 July 2025.
Use the filters below to find and compare flights from Ko Samui to Chicago O'Hare Intl Airport that are best for you.

Fly from

Ko Samui

Fly to

O'Hare Intl

Route

Depart

Return

Price

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 16/9

13:30-14:05

2 stops36h 35m

Chicago O'Hare Intl

Mon 29/9

16:00-13:10

2 stops57h 10m

฿38,101

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 10/10

09:15-20:45

2 stops23h 30m

Chicago O'Hare Intl

Mon 13/10

00:30-15:45

2 stops27h 15m

฿42,169

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 17/9

09:15-15:55

2 stops42h 40m

Chicago O'Hare Intl

Tue 30/9

19:05-21:10

2 stops38h 05m

฿42,589

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 16/9

17:55-15:05

2 stops33h 10m

Chicago O'Hare Intl

Wed 1/10

19:20-11:55

2 stops28h 35m

฿45,269

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Wed 15/10

16:00-07:20

2 stops27h 20m

฿47,239

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 17/9

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Tue 30/9

16:00-07:20

2 stops27h 20m

฿47,400

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Tue 16/9

19:10-09:40

2 stops26h 30m

Chicago O'Hare Intl

Tue 30/9

19:50-09:20

2 stops25h 30m

฿53,567

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Best time to book a flight from Ko Samui to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

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

Find hourly flight availability from Ko Samui to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 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 O'Hare Intl Airport as you normally would.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 6 July 2025.
See what other customers who have flown with EVA Air, Cathay Pacific, andสวิส อินเตอร์เนชั่นแนล แอร์ไลน์ from Ko Samui to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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
1,210 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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
925 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
7.5
Good
1,649 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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
3,589 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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
3,890 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

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 O'Hare Intl. 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 O'Hare Intl?

    Most people fly from Ko Samui (USM) if they book a flight from Ko Samui to Chicago O'Hare Intl. On average, Ko Samui has 0 outbound flights to Chicago O'Hare Intl per day from 0 airlines. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.

  • Can I find deals for flights from Ko Samui to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Ko Samui to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ko Samui to O'Hare Intl?

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

  • Can I find deals for business class flights from Ko Samui to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Ko Samui to O'Hare Intl 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 O'Hare Intl

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

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How does Cheapflights help users find flights from Ko Samui to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to O'Hare Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ko Samui to O'Hare Intl.

Can Cheapflights find flights from Ko Samui to O'Hare Intl 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 O'Hare Intl, 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 O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Ko Samui to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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