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$1,078+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KGS
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,167
(Mytrip)

One-way from

$1,088
(SWISS)
Provider with most accurate pricing for Chicago (CHI)-Kos flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Kos flights.
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From Illinois to Kos
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One-way flight 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 April 24, 2025.

This Lufthansa deal was found by Cheapflights users on 4/24. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:40 pmORD - KGS
1 stop13h 45mLufthansa
Mon 10/2712:40 pmKGS - ORD
2 stops32h 45mLufthansa
Deal found 4/24$1,078
This Mytrip deal was found by Cheapflights users on 4/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/710:40 amORD - KGS
3 stops29h 10mMultiple Airlines
Sat 6/146:00 amKGS - ORD
2 stops38h 38mMultiple Airlines
Deal found 4/23$1,167
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/304:20 pmORD - KGS
1 stop17h 35mAustrian Airlines
Fri 6/69:40 pmKGS - ORD
1 stop23h 40mAustrian Airlines
Deal found 4/23$1,598
This lastminute.com deal was found by Cheapflights users on 4/23. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/77:05 pmORD - KGS
1 stop31h 05mSWISS
Sat 6/148:45 pmKGS - ORD
1 stop23h 25mSWISS
Deal found 4/23$1,599
This Emirates deal was found by Cheapflights users on 4/23. 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.
Wed 5/218:35 pmORD - KGS
2 stops36h 55mEmirates
Wed 5/2811:25 amKGS - ORD
2 stops36h 20mEmirates
Deal found 4/23$2,794

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 April 24, 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

Fri 10/10

9:40 pm-7:25 pm

1 stop13h 45m

Kos

Mon 10/27

12:40 pm-2:25 pm

2 stops32h 45m

$1,078

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 6/7

10:40 am-11:50 pm

3 stops29h 10m

Kos

Sat 6/14

6:00 am-12:38 pm

2 stops38h 38m

$1,167

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 5/30

4:20 pm-5:55 pm

1 stop17h 35m

Kos

Fri 6/6

9:40 pm-1:20 pm

1 stop23h 40m

$1,598

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 6/7

7:05 pm-10:10 am

1 stop31h 05m

Kos

Sat 6/14

8:45 pm-12:10 pm

1 stop23h 25m

$1,599

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Wed 5/21

8:35 pm-5:30 pm

2 stops36h 55m

Kos

Wed 5/28

11:25 am-3:45 pm

2 stops36h 20m

$2,794

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 6/7

7:05 pm-5:05 pm

1 stop14h 00m

$1,088

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 6/7

10:30 pm-11:50 am

2 stops29h 20m

$1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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

What is the cheapest time of day to fly from IL to KGS?

Find hourly flight availability from Illinois to Kos. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Kos as you normally would.

Rainfall in Kos by month

Plan your trip to Kos by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kos ranges from 0.1 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. July is typically the driest time to visit Kos when rainfall is around 0.1 in.

Temperature in Kos by month

Plan your trip to Kos by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. 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 Kos. Reviews last updated April 24, 2025.
Emirates
8.0
Very good
3,205 reviews

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.0
Very good
3,205 reviews
Emirates
8.0
Very good
3,205 reviews

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
780 reviews
Emirates
8.0
Very good
3,205 reviews

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,582 reviews
Emirates
8.0
Very good
3,205 reviews

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Lufthansa
6.7
Okay
7,027 reviews
Emirates
8.0
Very good
3,205 reviews

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
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Alternative routes for Illinois to Kos

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Illinois to Kos

Discover the top airline that operate flights from Illinois to Kos. 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 2,558,603 searches. Data last updated April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$613Average$877FlexibilityNo cancel feeOn-time79%

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