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Cheap flight tickets from Chicago to Samui International

Compare Chicago to Samui International flight deals

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Flight deals from Chicago to Samui International

Looking for a cheap last-minute deal or the best return flight from Chicago to Samui International? Find the lowest prices on one-way and return tickets right here.
Koh Samui.RM5,165 per passenger.Departing Tue, 1 Sep, returning Wed, 9 Sep.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Chicago O'Hare International on Tue, 1 Sep, arriving in Samui International.Inbound indirect flight with Qatar Airways, departs from Samui International on Wed, 9 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM5,165, select.
Koh Samui.RM5,386 per passenger.Departing Mon, 4 May, returning Sat, 16 May.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Chicago O'Hare International on Mon, 4 May, arriving in Samui International.Inbound indirect flight with Qatar Airways, departs from Samui International on Sat, 16 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM5,386, select.
Koh Samui.RM6,361 per passenger.Departing Sun, 8 Mar, returning Sun, 15 Mar.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Chicago O'Hare International on Sun, 8 Mar, arriving in Samui International.Inbound indirect flight with Qatar Airways, departs from Samui International on Sun, 15 Mar, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM6,361, select.
Koh Samui.RM6,720 per passenger.Departing Mon, 7 Dec, returning Thu, 17 Dec.Return flight with Etihad Airways and Bangkok Airways.Outbound indirect flight with Etihad Airways, departs from Chicago O'Hare International on Mon, 7 Dec, arriving in Samui International.Inbound indirect flight with Bangkok Airways, departs from Samui International on Thu, 17 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM6,720, select.
Koh Samui.RM7,272 per passenger.Departing Mon, 22 Jun, returning Tue, 7 Jul.Return flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Chicago O'Hare International on Mon, 22 Jun, arriving in Samui International.Inbound indirect flight with Etihad Airways, departs from Samui International on Tue, 7 Jul, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM7,272, select.
Koh Samui.RM12,585 per passenger.Departing Sat, 21 Feb, returning Sat, 28 Feb.Return flight with Emirates and Bangkok Airways.Outbound indirect flight with Emirates, departs from Chicago O'Hare International on Sat, 21 Feb, arriving in Samui International.Inbound indirect flight with Bangkok Airways, departs from Samui International on Sat, 28 Feb, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM12,585, select.

Find the cheapest month to fly from Chicago to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Samui International flights are currently cheapest in September.
Feb
from RM12,585
Mar
from RM6,361
Apr
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May
from RM5,386
Jun
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Jul
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Aug
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Sep
from RM5,165
Oct
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Nov
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Dec
from RM6,720
Jan
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Chicago to Samui International: Alternative routes

Compare routes from Chicago to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Samui International

5km from central Koh Samui
ClosestCheapest
from RM5,165
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Chicago to Koh Samui: Flight information

The things to know before you go.
Cheapest flight foundRM5,165
Cheapest month to flySeptember

Finding cheap flights from Chicago to Samui International: Frequently asked questions

The best price we found for a return flight from Chicago to Samui International is RM5,165. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to Samui International. But we found flights with one stop from RM5,165.
As of February 2026, there are no flights flying from Chicago to Samui International.
The cheapest month to fly from Chicago to Samui International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Samui International Airport on Tuesday, 1 September 2026.
No airlines currently offer direct flights between Chicago and Samui International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Samui International is Qatar Airways .

Travelling from Chicago to Koh Samui Airport (USM): What you need to know

  • Get your holiday planning started by considering where you'll board your flight from Chicago to Koh Samui Airport (USM). O'Hare International Airport (ORD) and Chicago Midway International Airport (MDW) are Chicago's main airports.

  • Koh Samui Airport is located in Koh Samui. The city is in the UTC+7 timezone and is 12 hours ahead of Chicago.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to catch your flight from Chicago to USM.

  • Peak season means busier airports, so aim to get there even earlier. Give yourself at least two hours before a domestic flight and four hours for international journeys to stay on schedule.

Airports in Chicago

O'Hare International Airport (ORD)

  • Located around 40 kilometres from central Chicago, ORD can be reached in about 35 minutes by car (depending on traffic). The journey by public transport will take roughly 55 minutes.

  • Searching for a comfortable hotel close to O'Hare International Airport? If you're catching an early flight from Chicago to Koh Samui Airport, these accommodation options will have you sleeping moments from your check-in counter:

  • When it comes to O'Hare International Airport's on-time performance, data shows 74.85% of flights complete their journey on time.

  • ORD's address is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is about 19 kilometres from central Chicago. It takes 20 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 45 minutes.

  • Want to enjoy an extra night away before catching your Chicago to USM flight? Kick back in a hotel near Chicago Midway International Airport before your trip officially begins. These stays have your key waiting:

  • 77.88% of flights taking off from Chicago Midway International Airport stick to their scheduled arrival time.

  • You'll find MDW at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • From central Chicago, RFD is around 137 kilometres away. It takes roughly 1 hour 25 minutes to reach the airport by car and 4 hours 15 minutes or so on public transport.

  • Make catching an early Chicago to Koh Samui Airport flight the easiest part of your trip. Stay at one of these accommodation options near Chicago Rockford International Airport and head to your check-in counter with plenty of time to spare:

  • Flights that take off from RFD reach their destination within the scheduled time frame 76.19% of the time.

  • The street address of Chicago Rockford International Airport is 2 Airport Cir.

About Koh Samui Airport (USM)

  • Reserve a hotel close to USM if you have a late flight from Chicago to Koh Samui Airport. Check in to one of these options and get some sleep sooner:

  • Pick up a Koh Samui Airport rental car and explore Koh Samui and beyond with your own set of wheels. Asap car hire, Hertz and Drive Car Hire are popular providers to choose from here.

  • Booking your vehicle around four weeks in advance of your Chicago to Koh Samui Airport flight can help you find the best deal.

How to find the cheapest flights from Chicago to Koh Samui Airport (USM)

  • The cheapest price we've found for a one-way ticket from Chicago to Koh Samui Airport is RM1,978. For a return flight on this route, the best price is RM5,165. Depending on the availability when you book, these fares could change.

  • Don't leave everything to the last moment. You're more likely to walk away with cheap flights from Chicago to USM if you book early. Airlines often offer some fantastic early bird rates.

  • Affordable Chicago to Koh Samui Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' search tool to compare fares across the month and then choose the cheapest day.

  • Snapping up a cheap plane ticket from Chicago to USM is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Save on your flight from Chicago to Koh Samui Airport by using the search filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

Explore more of Thailand

  • Nakhon Si Thammarat is just one of the many cities in Thailand waiting to be explored once you've seen Koh Samui. Around 129 kilometres away to the south, its top attractions include Wat Phra Phrom, Wat Pho Sadet and Wat Yai Chai Mongkol.

  • If there's time to check out another major destination in Thailand, head for Phuket, about 257 kilometres south-west of Koh Samui. V.MarineTour- Phi Phi Islands Day Trip - Private Boat Charters, Sunrise Beach and Paradise Beach are among the biggest draws.

Plan the rest of your trip from Chicago to Koh Samui

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.