$683 Find Cheap Flights from Ko Samui to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ko Samui to Illinois departing on 2/28. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ko Samui to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ko Samui to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Ko Samui to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ko Samui to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent one-way flight deals from Ko Samui to Illinois

Sat, Feb 28
Multiple Airlines Logo
7:00 pm - 7:35 amUSM-ORD
49h 35m3 stops
$683Multiple Airlines
Find Deal
Fri, Feb 13
Multiple Airlines Logo
4:35 pm - 12:57 pmUSM-ORD
57h 22m3 stops
$685Multiple Airlines
Find Deal
Wed, Feb 25
Multiple Airlines Logo
7:00 pm - 11:30 amUSM-ORD
53h 30m3 stops
$707Multiple Airlines
Find Deal
Thu, Feb 26
Multiple Airlines Logo
8:55 am - 11:30 amUSM-ORD
39h 35m3 stops
$708Multiple Airlines
Find Deal
Fri, Feb 27
Multiple Airlines Logo
9:20 am - 7:35 amUSM-ORD
59h 15m3 stops
$712Multiple Airlines
Find Deal
Fri, Feb 13
Cathay Pacific Logo
11:40 am - 12:55 pmUSM-ORD
38h 15m1 stop
$880Cathay Pacific
Find Deal
Wed, Feb 25
Qatar Airways Logo
3:50 pm - 2:30 pmUSM-ORD
35h 40m2 stops
$910Qatar Airways
Find Deal
Sat, Feb 28
Qatar Airways Logo
7:00 pm - 2:30 pmUSM-ORD
56h 30m2 stops
$948Qatar Airways
Find Deal
Sat, Feb 28
Cathay Pacific Logo
11:40 am - 12:55 pmUSM-ORD
38h 15m1 stop
$1,279Cathay Pacific
Find Deal
Fri, Feb 27
Cathay Pacific Logo
11:40 am - 12:55 pmUSM-ORD
38h 15m1 stop
$1,285Cathay Pacific
Find Deal
Booking Insights

KAYAK's insights & trends for Ko Samui to Illinois flights

Get data-powered insights and trends into flights from Ko Samui to Illinois to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ko Samui to Illinois?

The average price of all round-trip flights from Ko Samui to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Ko Samui to Illinois, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Ko Samui, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

Find deals

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Ko Samui to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ko Samui to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ko Samui to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ko Samui to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ko Samui to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ko Samui to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ko Samui to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ko Samui to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $189 on average. Morning departures are around 33% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $492.

Everything you need to know for your flight from Ko Samui to Illinois

Information on your arrival and departure airports

Ko Samui (USM)