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Cheap flights from Ko Samui to Chicago O'Hare Intl Airport from ฿50,354

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — ORD
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ko Samui to O'Hare Intl

Enter your travel dates to find the best prices.

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 3 November 2025.

Fri 14/1108:30USM - ORD
2 stops24h 05mEVA Air
Tue 18/1123:30ORD - USM
2 stops27h 05mEVA Air
Deal found 31/10฿50,354
Fri 14/1109:35USM - ORD
2 stops43h 45mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 18/1116:10ORD - USM
2 stops32h 40mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 2/11฿59,893
Wed 17/1208:15USM - ORD
2 stops43h 40mEmirates
Wed 24/1219:45ORD - USM
2 stops47h 25mEmirates
Deal found 2/11฿72,644

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 3 November 2025.

Round-trip from

฿50,354
EVA Air
  • EVA Air
  • 14/11-18/11
  • 4 total stops
  • 51h 10m total
  • Ko Samui to Chicago
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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 3 November 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 14/11

08:30-19:35

2 stops24h 05m

Chicago O'Hare Intl

Tue 18/11

23:30-15:35

2 stops27h 05m

฿50,354

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 14/11

09:35-16:20

2 stops43h 45m

Chicago O'Hare Intl

Tue 18/11

16:10-13:50

2 stops32h 40m

฿59,893

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Wed 17/12

08:15-14:55

2 stops43h 40m

Chicago O'Hare Intl

Wed 24/12

19:45-08:10

2 stops47h 25m

฿72,644

Flights are sorted by cheapest return flights first.

Deals found on 31/10

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 3 November 2025.

One of the essential ways to save on airfare from Ko Samui to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 72% on airfare.

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.

  • How long is the flight from Ko Samui to Chicago O'Hare Intl Airport?

    EVA Air, สวิส อินเตอร์เนชั่นแนล แอร์ไลน์, and Emirates can get you from Ko Samui to Chicago O'Hare Intl Airport in just under 24h 05m. Your travel time can differ by up to 19h 40m. The distance between Ko Samui and Chicago O'Hare Intl Airport is about 14219 km. This flight may include one or multiple stops.

  • 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Rosemont

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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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ko Samui to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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