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Cheap flights from Ko Samui to Chicago O'Hare Intl Airport from ฿22,610

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
USM — ORD
22 Jul — 29 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 17 July 2025.

Round-trip from

฿42,166

One-way from

฿22,610
EVA Air
  • EVA Air
  • 10/10-13/10
  • 4 total stops
  • 52h 00m total
  • Ko Samui to Chicago
Search Deals
25/12
  • 25/12
  • 2 total stops
  • 25h 35m 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 17 July 2025.

Fri 10/1008:00USM - ORD
2 stops24h 45mEVA Air
Mon 13/1000:30ORD - USM
2 stops27h 15mEVA Air
Deal found 15/7฿42,166
Fri 29/817:40USM - ORD
3 stops36h 34mMultiple Airlines
Thu 4/901:05ORD - USM
2 stops43h 10mMultiple Airlines
Deal found 15/7฿43,238
Fri 12/910:55USM - ORD
1 stop39h 30mCathay Pacific
Wed 15/1016:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 16/7฿48,046
Fri 12/919:00USM - ORD
2 stops26h 40mเตอร์กิชแอร์ไลน์
Wed 15/1019:50ORD - USM
2 stops25h 30mเตอร์กิชแอร์ไลน์
Deal found 16/7฿48,501
Fri 10/1010:55USM - ORD
2 stops40h 10mQatar Airways
Tue 14/1019:20ORD - USM
2 stops27h 10mQatar Airways
Deal found 14/7฿57,239

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 17 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

Fri 10/10

08:00-20:45

2 stops24h 45m

Chicago O'Hare Intl

Mon 13/10

00:30-15:45

2 stops27h 15m

฿42,166

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 29/8

17:40-18:14

3 stops36h 34m

Chicago O'Hare Intl

Thu 4/9

01:05-08:15

2 stops43h 10m

฿43,238

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

฿48,046

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

฿48,501

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 10/10

10:55-15:05

2 stops40h 10m

Chicago O'Hare Intl

Tue 14/10

19:20-10:30

2 stops27h 10m

฿57,239

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Thu 25/12

07:00-19:35

2 stops25h 35m

฿22,610

Flights are sorted by cheapest return flights first.

Deals found on 15/7

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 17 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 17 July 2025.
See what other customers who have flown with EVA Air, Emirates, andCathay Pacific 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
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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
1,214 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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
3,290 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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
933 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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
3,605 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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
3,901 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

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

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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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