Cheap flights from Chicago to Ko Samui from $611
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Ko Samui departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Chicago to Ko Samui
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Ko Samui?
Our data shows that Friday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $254. Flights from Chicago to Ko Samui on a Sunday will generally be more expensive and average around $484. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Ko Samui?
Our data shows that the cheapest Chicago to Ko Samui flights are usually those with departure times in the evening. Our users have found flights to Ko Samui in the evening for as low as $199. In the afternoon is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $545 per ticket.
When to book flights from Chicago to Ko Samui
Cheap Chicago to Ko Samui (CHI to USM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Ko Samui
How far is Chicago to Ko Samui by plane?
There are 8846.2 mi between Chicago and Ko Samui. 24h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago to Ko Samui Airport?
Prices for flights from Chicago to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from Chicago to Ko Samui Airport?
As of July 2025, there is 1 operator available to choose from for flights from Chicago to Ko Samui Airport.
How old do you have to be to fly from Chicago to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chicago to Ko Samui?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Ko Samui is EVA Air (100% of total bookings).
Best airlines flying from Chicago to Ko Samui
Compare and see reviews for airlines that fly from Chicago to Ko Samui with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,148 | Free Cancellation | Rating 8.4 1,214 reviews |
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Ko Samui?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Ko Samui. momondo saves you time and could save you money on your trip.
Can I find flights from Chicago to Ko Samui with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Ko Samui from Chicago with this policy.
How can momondo help me find flights from Chicago to Ko Samui?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from Chicago.
I’m not ready to book a flight from Chicago to Ko Samui right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ko Samui from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.