$487+ Cheap flights from O'Hare Intl (ORD) to Ko Samui (USM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — USM
Nov 22 — Nov 291
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to Ko Samui with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from O'Hare Intl to Ko Samui
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Cheapest flights from O'Hare Intl to Ko SamuiExplore the most affordable flight options available from O'Hare Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
Explore the most affordable flight options available from O'Hare Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:10 pm -
1 stop40h 25m
Sat 11/2811:40 am -
1 stop37h 50m
Deal found 10/21![Cathay Pacific logo]()
$913
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:10 pm -
1 stop40h 25m
Thu 11/1211:40 am -
1 stop37h 50m
Deal found 10/18![Cathay Pacific logo]()
$948
This oojo deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/811:40 am -
1 stop37h 50m
Deal found 10/20![Cathay Pacific logo]()
$989
This KAYAK deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/88:20 pm -
2 stops29h 10m
Deal found 10/19![Multiple Airlines logo]()
$1,000
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:10 pm -
2 stops36h 25m
Sat 12/129:10 pm -
2 stops28h 20m
Deal found 10/21![Multiple Airlines logo]()
$1,085
This KAYAK deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:10 pm -
1 stop40h 25m
Sun 11/157:00 am -
2 stops42h 30m
Deal found 10/20![Cathay Pacific logo]()
$1,128
This Turkish Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:15 pm -
2 stops33h 10m
Sun 11/157:00 pm -
2 stops36h 20m
Deal found 10/20![Turkish Airlines logo]()
$1,187
Best flights from O'Hare Intl to Ko SamuiDiscover carefully curated flight deals from O'Hare Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
Discover carefully curated flight deals from O'Hare Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:10 pm -
1 stop40h 25m
Sat 11/2811:40 am -
1 stop37h 50m
Deal found 10/21![Cathay Pacific logo]()
$913
This KAYAK deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/212:10 pm -
1 stop40h 25m
Mon 2/158:20 pm -
2 stops29h 10m
Deal found 10/20![Multiple Airlines logo]()
$1,084
This Turkish Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:15 pm -
2 stops33h 10m
Sun 11/157:00 pm -
2 stops36h 20m
Deal found 10/20![Turkish Airlines logo]()
$1,187
This KAYAK deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/151:15 pm -
2 stops32h 25m
Sat 11/287:00 pm -
2 stops49h 35m
Deal found 10/20![Etihad Airways logo]()
$1,522
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:10 pm -
1 stop40h 25m
Thu 11/1211:40 am -
1 stop37h 50m
Deal found 10/18![Cathay Pacific logo]()
$948
This oojo deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/811:40 am -
1 stop37h 50m
Deal found 10/19![Cathay Pacific logo]()
$989
This Turkish Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 am -
2 stops30h 50m
Sun 11/294:25 pm -
2 stops62h 55m
Deal found 10/21![Turkish Airlines logo]()
$1,518
This Gotogate deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:10 pm -
2 stops36h 25m
Sat 12/122:05 pm -
3 stops28h 32m
Deal found 10/21![Multiple Airlines logo]()
$1,572
Last-minute flights from O'Hare Intl to Ko SamuiDiscover last-minute flight deals from O'Hare Intl to Ko Samui. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Ko Samui. Data last updated October 23, 2026 and is based on user searches.
This Cathay Pacific deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:10 pm -
1 stop40h 25m
Thu 11/1211:40 am -
1 stop37h 50m
Deal found 10/18![Cathay Pacific logo]()
$948
This Turkish Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:15 pm -
2 stops33h 00m
Thu 11/125:40 pm -
2 stops29h 20m
Deal found 10/18![Turkish Airlines logo]()
$1,249
This KAYAK deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:10 pm -
1 stop40h 25m
Sun 11/157:00 am -
2 stops42h 30m
Deal found 10/20![Cathay Pacific logo]()
$1,128
This Turkish Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:15 pm -
2 stops33h 10m
Sun 11/157:00 pm -
2 stops36h 20m
Deal found 10/20![Turkish Airlines logo]()
$1,187
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:10 pm -
1 stop40h 25m
Sat 11/2811:40 am -
1 stop37h 50m
Deal found 10/21![Cathay Pacific logo]()
$913
This oojo deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/811:40 am -
1 stop37h 50m
Deal found 10/20![Cathay Pacific logo]()
$989
This KAYAK deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/88:20 pm -
2 stops29h 10m
Deal found 10/19![Multiple Airlines logo]()
$1,000
One-way flights from O'Hare Intl to Ko SamuiSearch for one-way flight options from O'Hare Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
Search for one-way flight options from O'Hare Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This SmartFares deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/183:10 pm -
1 stop40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Cathay Pacific logo]()
$487
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/222:10 pm -
2 stops28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$520
This SmartFares deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/193:10 pm -
1 stop40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Cathay Pacific logo]()
$547
This Expedia deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/193:10 pm -
2 stops29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$549
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:25 am -
2 stops35h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$558
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/222:10 pm -
1 stop40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Cathay Pacific logo]()
$590
This Gurufare deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:10 pm -
1 stop40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Cathay Pacific logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/183:10 pm -
3 stops38h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$667
Find flight deals from O'Hare Intl to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Ko Samui (USM). 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 October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $867 (Booking.com) |
One-way from | $520 (KAYAK) |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Ko Samui 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 7,457,451 searches. Data last updated October 23, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ko Samui that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Thu 3/18
3:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$487
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Fri 3/19
3:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$547
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Mon 11/16
10:25 am-10:35 am
2 stops35h 10m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$558
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Mon 2/22
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$590
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Mon 11/16
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$592
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Thu 3/18
3:10 pm-5:10 pm
3 stops38h 00m
Ko Samui
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$667
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Sun 11/15
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Sat 11/28
11:40 am-12:30 pm
1 stop37h 50m
$913
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Sun 11/8
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Thu 11/12
11:40 am-12:30 pm
1 stop37h 50m
$948
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Tue 11/24
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Tue 12/8
11:40 am-12:30 pm
1 stop37h 50m
$989
ChicagoKo Samui
ORD Chicago O'Hare Intl - USM Ko Samui
ORDUSM
Chicago O'Hare Intl
Thu 1/21
2:10 pm-7:35 pm
1 stop40h 25m
Ko Samui
Mon 2/15
8:20 pm-12:30 pm
2 stops29h 10m
$1,084
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to Ko Samui
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Ko Samui in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Ko Samui flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from O'Hare Intl to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from O'Hare Intl with our price prediction graph.
ORD-USM
Estimated round-trip 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 Chicago O'Hare Intl Airport to Ko Samui
How often are flights from Chicago to Ko Samui delayed?
About 24% of weekly flights between Chicago and Ko Samui have experienced delays in the past year, with the average delay time being 156 minutes.
What is the most punctual flight time for Chicago to Ko Samui flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Ko Samui flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.
The best insider tips for Chicago O'Hare Intl Airport to Ko Samui flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Ko Samui trip
Our travel experts
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Pha Ngan
Ko Tao
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