Koh Samui

$758+ Cheap flights from Illinois to Koh Samui (USM)

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — USM
Nov 25 — Dec 21
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Cheap flight deals from Illinois to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Koh 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 November 20, 2024.

Find flight deals from Illinois to Koh Samui

Cheapest flights from Illinois to Koh Samui
Explore the most affordable flight options available from Illinois to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This SmartFares deal was found by Cheapflights users on 11/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/198:30 pmORD - USM
2 stops35h 15mMultiple Airlines
Wed 12/257:00 pmUSM - ORD
2 stops28h 10mMultiple Airlines
Deal found 11/19$2,975
This Gotogate deal was found by Cheapflights users on 11/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1911:55 amORD - USM
2 stops30h 45mTurkish Airlines
Wed 12/2510:00 amUSM - ORD
2 stops37h 10mTurkish Airlines
Deal found 11/20$3,174

Find flights from Illinois to Koh Samui within your budget

Customize your flight search to find flights from Illinois to Koh 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 2,629,791 searches. Data last updated November 20, 2024.

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Depart

Return

Price

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 3/2

11:30 pm-2:55 pm

2 stops26h 25m

Ko Samui

Sun 3/9

1:25 pm-7:35 pm

2 stops67h 10m

$1,295

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 1/26

11:30 pm-7:50 pm

2 stops31h 20m

Ko Samui

Sun 2/9

9:05 pm-7:35 pm

2 stops35h 30m

$1,463

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sat 3/22

3:40 pm-7:35 pm

1 stop39h 55m

Ko Samui

Sat 3/29

8:20 am-2:25 pm

2 stops42h 05m

$1,640

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Thu 12/19

11:55 am-7:40 am

2 stops30h 45m

Ko Samui

Wed 12/25

10:00 am-10:10 am

2 stops37h 10m

$3,174

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 1/3

7:45 pm-9:05 pm

2 stops36h 20m

Ko Samui

Fri 1/10

7:10 pm-2:55 pm

2 stops32h 45m

$4,595

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 1/26

8:30 pm-11:30 am

2 stops26h 00m

$758

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 1/31

11:30 pm-8:45 pm

2 stops32h 15m

$843

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 1/5

11:55 am-8:10 am

2 stops31h 15m

$886

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 1/31

2:40 pm-7:35 pm

1 stop39h 55m

$992

ChicagoKoh Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 1/26

2:51 pm-3:40 pm

3 stops35h 49m

$1,331

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Best time to book a flight from Illinois to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Illinois with our price prediction graph.
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.

Travel insights for flights from Illinois to Koh Samui

Get recent, data-driven insights about flights from Illinois to Koh Samui including ideal travel times, pricing trends, and more.

Rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. 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 Koh Samui. Reviews last updated November 20, 2024.
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.4
Very good
1,308 reviews
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very good
3,486 reviews
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.6
Good
878 reviews
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.5
Good
3,831 reviews
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.4
Good
3,915 reviews
8.4
Very good
1,308 reviews

Overall

8.4

Crew

8.6

Comfort

8.2

Boarding

8.4

Entertainment

8.0

Food

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Koh Samui. 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 into for flights to Koh Samui from Illinois?

    Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from Illinois. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

  • What are the cheapest airlines to fly from Illinois to Koh Samui one-way?

    The cheapest airlines for a one-way flight from Illinois to Koh Samui are EVA Air ($843), Turkish Airlines ($886), and Cathay Pacific ($992).

  • Can I find deals for flights from Illinois to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Illinois to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Koh Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Koh Samui.

  • Can I find deals for business class flights from Illinois to Koh Samui?

    Yes. Cheapflights offers flight deals from Illinois to Koh Samui 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 Illinois to Koh Samui

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Illinois to Koh Samui

Discover the top airline that operate flights from Illinois to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,147Average$1,311FlexibilityNo cancel feeOn-time74%
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