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Cheap flights from Ko Samui to Chicago from ฿39,802

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CHI
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ko Samui to Chicago

Enter your travel dates to find the best prices.

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 31 October 2025.

Thu 13/1109:35USM - ORD
2 stops23h 00mEVA Air
Sun 16/1123:30ORD - USM
2 stops26h 25mEVA Air
Deal found 28/10฿39,802
Thu 13/1111:40USM - ORD
1 stop38h 15mCathay Pacific
Sun 16/1114:35ORD - USM
1 stop40h 00mCathay Pacific
Deal found 28/10฿41,616
Wed 12/1120:45USM - ORD
2 stops35h 50mEVA Air
Sun 16/1123:30ORD - USM
2 stops27h 05mEVA Air
Deal found 28/10฿41,713
Wed 12/1108:30USM - ORD
2 stops24h 05mEVA Air
Thu 13/1123:30ORD - USM
2 stops43h 40mEVA Air
Deal found 28/10฿42,069
Thu 13/1111:40USM - ORD
1 stop38h 15mCathay Pacific
Mon 17/1114:35ORD - USM
1 stop40h 00mCathay Pacific
Deal found 28/10฿43,721
Fri 14/1109:35USM - ORD
2 stops23h 00mEVA Air
Tue 18/1123:30ORD - USM
2 stops27h 55mEVA Air
Deal found 28/10฿44,563
Sun 16/1109:35USM - ORD
2 stops23h 00mEVA Air
Sun 16/1123:30ORD - USM
2 stops26h 25mEVA Air
Deal found 28/10฿45,697
Wed 12/1119:35USM - ORD
2 stops27h 30mเตอร์กิชแอร์ไลน์
Fri 14/1111:50ORD - USM
2 stops32h 15mเตอร์กิชแอร์ไลน์
Deal found 28/10฿46,603
Wed 12/1111:40USM - ORD
1 stop38h 15mCathay Pacific
Fri 14/1114:35ORD - USM
1 stop40h 00mCathay Pacific
Deal found 28/10฿53,923
Thu 13/1109:35USM - ORD
2 stops23h 00mEVA Air
Fri 14/1123:30ORD - USM
2 stops27h 05mEVA Air
Deal found 28/10฿55,056

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 31 October 2025.

Round-trip from

฿39,802
EVA Air
  • EVA Air
  • 13/11-15/11
  • 4 total stops
  • 49h 25m total
  • Ko Samui to Chicago
Search Deals

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 31 October 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

Thu 13/11

09:35-19:35

2 stops23h 00m

Chicago O'Hare Intl

Sun 16/11

23:30-14:55

2 stops26h 25m

฿39,802

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Thu 13/11

09:35-19:35

2 stops23h 00m

Chicago O'Hare Intl

Sat 15/11

23:30-14:55

2 stops26h 25m

฿39,802

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Thu 13/11

11:40-12:55

1 stop38h 15m

Chicago O'Hare Intl

Sun 16/11

14:35-19:35

1 stop40h 00m

฿41,616

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sat 15/11

20:20-19:35

2 stops36h 15m

Chicago O'Hare Intl

Sun 16/11

23:30-15:35

2 stops27h 05m

฿41,713

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 14/11

08:30-19:35

2 stops24h 05m

Chicago O'Hare Intl

Mon 17/11

23:30-17:00

2 stops28h 30m

฿41,713

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sun 16/11

20:20-19:35

2 stops36h 15m

Chicago O'Hare Intl

Mon 17/11

23:30-17:00

2 stops28h 30m

฿41,713

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Sat 15/11

21:10-19:35

2 stops35h 25m

Chicago O'Hare Intl

Mon 17/11

23:30-14:55

2 stops26h 25m

฿41,713

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 12/11

20:45-19:35

2 stops35h 50m

Chicago O'Hare Intl

Sun 16/11

23:30-15:35

2 stops27h 05m

฿41,713

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 12/11

08:30-19:35

2 stops24h 05m

Chicago O'Hare Intl

Thu 13/11

23:30-08:10

2 stops43h 40m

฿42,069

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Thu 13/11

08:30-19:35

2 stops24h 05m

Chicago O'Hare Intl

Thu 13/11

23:30-08:10

2 stops43h 40m

฿42,069

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 12 results
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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 31 October 2025.

It’s typically best to fly out from Ko Samui to Chicago in the evening. Doing so could potentially save you 62% on the flight price compared to flying in the afternoon, which is usually more expensive.

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.

  • How long is the flight from Ko Samui to Chicago?

    There are many flights that can get you from Ko Samui to Chicago in 23h. Fly via EVA Air or Cathay Pacific to get the fastest option. Ko Samui and Chicago are separated by a distance of 14219 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ko Samui to Chicago?

Cheapflights helps you search for flights from Ko Samui to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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