HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Chicago (CHI) to Koh Samui (USM) from $1,189

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — USM
Apr 24 — May 11
From?
To?
Wed 4/24
Wed 5/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Chicago to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 April 19, 2024.

Popular in

July

Cheapest in

November

Average price

$1,202

Round-trip from

$1,045
High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 30% potential price drop
Search Deals
Average for round-trip flights in April 2024
Search Deals
From Chicago (CHI) to Ko Samui
Search Deals

What is the cheapest day to fly round-trip from Chicago to Koh Samui?

Travelers have found that booking a Thursday departure is the best way to save up to 126% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from Chicago to Koh Samui?

November is one of the best times of the year to fly to Koh Samui from Chicago. Prices for November average $1,585 per person but you can even find prices for as low as $1,109. The most expensive prices can be found in the month of July. Opting for a November flight can save you 40% on your journey compared to booking in July

When is the cheapest time to fly from Chicago to Koh Samui (CHI - USM)?

When flying from Chicago to Koh Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap EVA Air flights from Chicago to Koh Samui

Explore cheap flight options specifically provided by EVA Air for the route between Chicago and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 19, 2024.
Find some of the cheapest EVA Air flights traveling from Chicago to Koh Samui. Make sure to double check the flight details before booking.
Sat 10/512:30 amORD - USM
2 stops42h 50mEVA Air
Fri 10/118:00 amUSM - ORD
2 stops24h 45mEVA Air
Deal found 4/17$1,189
Wed 9/1812:30 amORD - USM
2 stops27h 15mEVA Air
Mon 9/237:00 amUSM - ORD
2 stops25h 45mEVA Air
Deal found 4/17$1,246

Cheap Cathay Pacific flights from Chicago to Koh Samui

Explore cheap flight options specifically provided by Cathay Pacific for the route between Chicago and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 19, 2024.
Some of the lowest-priced Cathay Pacific flights we've found at this time heading from Chicago to Koh Samui. Deals are refreshing constantly so come back soon for more options.
Sun 10/66:25 pmORD - USM
2 stops36h 10mCathay Pacific
Fri 10/1110:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/17$1,459
Sun 10/64:05 pmORD - USM
1 stop38h 30mCathay Pacific
Fri 10/1110:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/17$1,485
Fri 5/174:05 pmORD - USM
2 stops37h 00mCathay Pacific
Fri 5/2410:55 amUSM - ORD
2 stops39h 25mCathay Pacific
Deal found 4/19$1,743
Fri 5/174:05 pmORD - USM
2 stops36h 30mCathay Pacific
Thu 5/3010:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/18$1,790
Fri 5/174:05 pmORD - USM
1 stop38h 30mCathay Pacific
Thu 5/3010:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/18$1,895

Cheap Chicago to Koh Samui flights in April & May 2024

Find cheap flight options from Chicago to Koh Samui specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,138,949 searches. Prices were last updated on April 19, 2024.
Check out some of the best flight deals from Chicago to Koh Samui in 2024. For more flight deals, be sure to check back very soon.
Fri 5/174:05 pmORD - USM
2 stops36h 30mMultiple Airlines
Fri 5/2410:55 amUSM - ORD
1 stop39h 30mMultiple Airlines
Deal found 4/19$1,730
Fri 5/174:05 pmORD - USM
2 stops37h 00mCathay Pacific
Fri 5/2410:55 amUSM - ORD
2 stops39h 25mCathay Pacific
Deal found 4/19$1,743
Fri 5/174:05 pmORD - USM
2 stops36h 30mCathay Pacific
Thu 5/3010:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/18$1,790
Fri 5/173:00 pmORD - USM
3 stops32h 15mMultiple Airlines
Thu 5/308:45 amUSM - ORD
3 stops33h 15mMultiple Airlines
Deal found 4/18$1,860
Fri 5/174:05 pmORD - USM
2 stops40h 55mMultiple Airlines
Thu 5/307:10 pmUSM - ORD
2 stops55h 15mMultiple Airlines
Deal found 4/18$1,877
Fri 5/174:05 pmORD - USM
1 stop38h 30mCathay Pacific
Thu 5/3010:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/18$1,895
Thu 5/1612:30 amORD - USM
2 stops26h 15mMultiple Airlines
Fri 5/248:00 amUSM - ORD
2 stops25h 00mMultiple Airlines
Deal found 4/19$1,984
Fri 5/173:00 pmORD - USM
3 stops32h 15mMultiple Airlines
Fri 5/243:55 pmUSM - ORD
2 stops34h 30mMultiple Airlines
Deal found 4/19$2,043
Thu 5/1612:30 amORD - USM
2 stops26h 15mMultiple Airlines
Fri 5/2410:55 amUSM - ORD
1 stop39h 30mMultiple Airlines
Deal found 4/19$2,084

Chicago to Koh Samui 2024 flight deals

Discover exclusive flight deals for travel between Chicago and Koh Samui in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 19, 2024.
Check out some of the best flight deals from Chicago to Koh Samui in 2024. For more flight deals, be sure to check back very soon.
Sat 10/512:30 amORD - USM
2 stops42h 50mEVA Air
Fri 10/118:00 amUSM - ORD
2 stops24h 45mEVA Air
Deal found 4/17$1,189
Wed 9/1812:30 amORD - USM
2 stops26h 15mEVA Air
Mon 9/237:10 pmUSM - ORD
2 stops37h 35mEVA Air
Deal found 4/18$1,246
Sun 10/66:25 pmORD - USM
2 stops36h 10mCathay Pacific
Fri 10/1110:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/17$1,459
Sun 10/68:30 pmORD - USM
2 stops24h 50mMultiple Airlines
Fri 10/119:10 pmUSM - ORD
2 stops48h 30mMultiple Airlines
Deal found 4/17$1,464
Sun 10/64:05 pmORD - USM
1 stop38h 30mCathay Pacific
Fri 10/1110:55 amUSM - ORD
1 stop39h 30mCathay Pacific
Deal found 4/17$1,485
Thu 9/1911:25 amORD - USM
2 stops34h 45mTurkish Airlines
Mon 9/236:55 pmUSM - ORD
2 stops26h 45mTurkish Airlines
Deal found 4/17$1,531
Thu 9/198:45 pmORD - USM
2 stops28h 00mEmirates
Mon 9/233:30 pmUSM - ORD
2 stops36h 15mEmirates
Deal found 4/18$1,683
Fri 5/174:05 pmORD - USM
2 stops36h 30mMultiple Airlines
Fri 5/2410:55 amUSM - ORD
1 stop39h 30mMultiple Airlines
Deal found 4/19$1,730
Fri 5/174:05 pmORD - USM
2 stops37h 00mCathay Pacific
Fri 5/2410:55 amUSM - ORD
2 stops39h 25mCathay Pacific
Deal found 4/19$1,743

Find flights from Chicago to Koh Samui within your budget

Customize your flight search to find flights from Chicago 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 3,138,949 searches. Data last updated April 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,189 - $2,479

Route

Depart

Return

Price

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sat 10/5

2 stops42h 50m

Ko Samui

Fri 10/11

2 stops24h 45m

$1,189

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Wed 9/18

2 stops27h 15m

Ko Samui

Mon 9/23

2 stops25h 45m

$1,246

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 10/6

2 stops36h 10m

Ko Samui

Fri 10/11

1 stop39h 30m

$1,459

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 10/6

2 stops24h 50m

Ko Samui

Fri 10/11

2 stops48h 30m

$1,464

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 10/6

1 stop38h 30m

Ko Samui

Fri 10/11

1 stop39h 30m

$1,485

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Thu 9/19

2 stops34h 45m

Ko Samui

Mon 9/23

2 stops26h 45m

$1,531

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Thu 9/19

2 stops28h 00m

Ko Samui

Mon 9/23

2 stops36h 15m

$1,683

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Fri 5/17

2 stops36h 30m

Ko Samui

Fri 5/24

1 stop39h 30m

$1,730

Chicago O'Hare IntlKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Sun 10/6

2 stops60h 30m

Ko Samui

Fri 10/11

3 stops39h 40m

$2,479

Flights are sorted by cheapest first

Deals found on 4/17

When is the cheapest time to fly from Chicago to Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Koh Samui. Price data was last updated on April 14, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Chicago to Koh Samui flight should consider departing on Sunday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Koh Samui by month

Plan your trip from Chicago to Koh Samui by taking into account the cheapest months to travel. The average price of a one-way flight from Chicago to Koh Samui is currently $0 while a round-trip flight costs $1,585. Price data was last updated on April 14, 2024.

Temperature and rainfall in Koh Samui by month

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

USM

Temperature

80.6 - 84.2 °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 April 19, 2024.
Get a feel of what it's like to fly with EVA Air, Cathay Pacific and Singapore Airlines from Chicago to Koh Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

EVA Air
8.4
Very good
1,560 reviews
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

Singapore Airlines
8.3
Very good
1,491 reviews
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

Emirates
8.1
Very good
4,085 reviews
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

Cathay Pacific
7.8
Good
1,144 reviews
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

Turkish Airlines
7.5
Good
3,691 reviews
EVA Air
8.4
Very good
1,560 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.2

Crew

8.6

Overall

8.4

Food

7.9

Reviews

1 / 10

Spaces of the seats , good food , uniform and the beautiful flight attendants, with their hairdos , they look like models . I would recommend to everybody and k will continue to go on Eva air

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    Ko Samui (USM), located 2.1 mi from the city center, is the airport you fly into when you book flights from Chicago to Koh Samui. 1 airline have flights to Ko Samui from Chicago on a regular basis. Booking flights from Chicago to Ko Samui should not be difficult; the airport handles an average of 0 inbound flights from Chicago per day.

  • Can I find flights from Chicago to Koh Samui for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Chicago to Koh Samui for under $1,200. The cheapest flight booked recently is on EVA Air for just $1,189, but on average you can expect to pay $1,804.

  • What are the cheapest airlines flying from Chicago to Koh Samui round-trip?

    Currently priced at $1,189, EVA Air will fly you from Chicago to Koh Samui and back. In addition to EVA Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Cathay Pacific and Turkish Airlines - these airlines can fly you to your destination from $1,459 and $1,531, respectively. EVA Air is currently priced 25% below the average price you’ll pay for this route.

  • What does ORD to USM mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Ko Samui Airport flight would often be abbreviated as a ORD to USM flight. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD).

  • Can I find deals for flights from Chicago to Koh Samui that include extra baggage allowance?

    The amount of baggage you can bring on your Chicago to Koh Samui flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Chicago to Koh Samui with specific airlines?

    Yes, Cheapflights allows you to browse and filter Chicago to Koh Samui flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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.

  • Can I find deals for flights from Chicago to Koh Samui that allow pets onboard?

    Many airlines flying from Chicago to Koh Samui offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Chicago to Koh Samui?

    Yes, you can often find last-minute deals on Chicago to Koh Samui flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Chicago to Koh Samui flight deals updated?

    The Chicago to Koh Samui flight deals you see on this page were last updated on 4/19.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Koh Samui
See prices for flight routes from nearby airports that may be better suited for you.

O'Hare Intl to Suvarnabhumi flights
O'Hare Intl to Don Mueang Intl flights
O'Hare Intl to Chiang Mai flights
St. Louis to Suvarnabhumi flights
O'Hare Intl to Phuket City flights
Midway to Phuket City flights
O'Hare Intl to Chiang Rai flights
O'Hare Intl to Koh Samui flights
St. Louis to Phuket City flights
O'Hare Intl to Krabi flights
St. Louis to Chiang Mai flights

Top airline flying from Chicago to Koh Samui

Discover the top airline that operate flights from Chicago 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 3,138,949 searches. Data last updated April 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,151Average$1,207FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Boston to Miami flights
Washington, D.C. to London flights
San Diego to Sacramento flights
Atlanta to New Orleans flights
Seattle to Dallas flights
Las Vegas to Phoenix flights
Los Angeles to Cabo San Lucas flights
Las Vegas to Boston flights
Charlotte to Washington, D.C. flights
Baltimore to Cancún flights
San Francisco to Paris flights
Chicago to Massachusetts flights

Search flights from Chicago to Koh Samui by cabin class

Find flights from Chicago to Koh Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Bodø
Flights to Bar Harbor
Flights to Bastia Poretta
Flights to Dharamshala Kangra
Flights to Biarritz Parme
Flights to Menorca/Mahon
Flights to Milas–Bodrum
Flights to Dipolog
Flights to Kagoshima
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Ordu/Giresun
Flights to Chios
Flights to Argostoli Cephalonia
Flights to Barrow Wiley Post/W.Rogers
Flights to Kristiansand Kjevik
Flights to Zakynthos Dionsios Salomos
Flights to Batumi
Flights to Guilin
Flights to Pau Pyrénées
Flights to Fez Sais
Flights to Kos
Flights to Mytilene
Flights to Norwich Arpt

Fly with Cheapflights

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

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chicago to Koh Samui. 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 Chicago to Koh Samui?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Koh Samui from Chicago.

Can Cheapflights find flights from Chicago to Koh Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Chicago to Koh Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Chicago to Koh Samui become cheaper?

Yes! Start tracking prices for Chicago to Koh Samui flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines