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Cheap flights from Ko Samui to Chicago O'Hare Intl Airport from ฿48,508

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
USM — ORD
6 Sep — 13 Sep1
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 1 September 2025.

Round-trip from

฿48,508
EVA Air
  • EVA Air
  • 10/10-13/10
  • 4 total stops
  • 53h 20m 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 1 September 2025.

Fri 10/1008:00USM - ORD
2 stops24h 45mEVA Air
Mon 13/1000:30ORD - USM
2 stops28h 35mEVA Air
Deal found 29/8฿48,508
Fri 12/910:55USM - ORD
1 stop39h 30mMultiple Airlines
Wed 15/1023:45ORD - USM
2 stops30h 15mMultiple Airlines
Deal found 30/8฿48,894
Fri 12/910:55USM - ORD
1 stop39h 30mCathay Pacific
Wed 15/1016:00ORD - USM
1 stop38h 35mCathay Pacific
Deal found 1/9฿49,088
Fri 10/1010:55USM - ORD
2 stops39h 55mQatar Airways
Tue 14/1019:20ORD - USM
2 stops27h 10mQatar Airways
Deal found 29/8฿57,049
Fri 12/920:50USM - ORD
2 stops35h 55mEVA Air
Tue 14/1000:30ORD - USM
2 stops26h 15mEVA Air
Deal found 30/8฿60,594

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 1 September 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

00:30-17:05

2 stops28h 35m

฿48,508

Ko SamuiChicago

USM - ORD

USMORD

Ko Samui

Fri 12/9

10:55-14:25

1 stop39h 30m

Chicago O'Hare Intl

Wed 15/10

23:45-18:00

2 stops30h 15m

฿48,894

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

฿49,088

Flights are sorted by cheapest return flights first.

Deals found on 29/8

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 1 September 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.

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 can get you from Ko Samui to Chicago O'Hare Intl Airport in just under 24h 45m. Your travel time can differ by up to . The distance between Ko Samui and Chicago O'Hare Intl Airport is about 14219 km.

  • 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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