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Kos

$1,171+ Cheap flights from Illinois to Kos (KGS)

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KGS
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap flight deals from Illinois to Kos

Keep the following information in mind while searching for Illinois to Kos flight deals. Data was last updated November 2, 2025.

Round-trip from

$1,171
(SWISS)
From Illinois to Kos
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Find flight deals from Illinois to Kos

Cheapest flights from Illinois to Kos
Explore the most affordable flight options available from Illinois to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Emirates deal was found by Cheapflights users on 11/1. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:45 pmORD - KGS
2 stops37h 20mEmirates
Thu 11/2712:35 pmKGS - ORD
2 stops34h 20mEmirates
Deal found 11/1$2,364

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Kos 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 2,558,603 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Illinois to Kos that are best for you.

Fly from

Illinois

Fly to

Kos

Route

Depart

Return

Price

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Thu 4/2

4:25 pm-7:55 pm

2 stops43h 30m

Kos

Mon 4/6

7:30 pm-3:55 pm

2 stops28h 25m

$1,171

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 11/14

7:45 pm-5:05 pm

2 stops37h 20m

Kos

Thu 11/27

12:35 pm-2:55 pm

2 stops34h 20m

$2,364

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Illinois to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Kos
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Kos. 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 Kos from Illinois?

    Located just 12.8 mi from the city center, Kos (KGS) is the airport most travelers will use when flying to Kos from Illinois.

  • How long is the flight from Illinois to Kos?

    There are many flights that can get you from Illinois to Kos in 43h 30m. Fly via SWISS to get the fastest option. The distance from Illinois to Kos is about 5622 mi.

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

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

  • How can I find direct flights from Illinois to Kos?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Kos 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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