When did momondo last update prices for flights from Chicago to Kos Airport?

Prices for flights from Chicago to Kos Airport are refreshed on a daily basis.

How old do you have to be to fly from Chicago to Kos Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Kos Airport.

What documentation or ID do you need to fly to Kos Airport?

The travel and health documents you'll need for your trip to Kos Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kos Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$709 Cheap Flights from Chicago to Kos in 2025/26

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Find the cheapest flights from Chicago to Kos

Round-trip

One-way

Last minute

Cheap round-trip flights

4:20 pm - 5:55 pmORD-KGS

17h 35m1 stop

9:40 pm - 1:20 pmKGS-ORD

23h 40m1 stop

$774Austrian Airlines

Find Deal

Fri, Oct 10 - Wed, Oct 15

4:20 pm - 9:10 amORD-KGS

32h 50m1 stop

12:40 pm - 7:25 pmKGS-ORD

13h 45m1 stop

$830

Find Deal

Fri, Oct 10 - Mon, Oct 27

4:20 pm - 9:10 amORD-KGS

32h 50m1 stop

9:40 pm - 5:20 pmKGS-ORD

51h 40m2 stops

$870Austrian Airlines

Find Deal

Fri, Oct 10 - Wed, Oct 15

5:55 pm - 9:10 amORD-KGS

31h 15m2 stops

9:40 pm - 11:30 amKGS-ORD

45h 50m2 stops

$897Austrian Airlines

Find Deal

Fri, Oct 10 - Wed, Oct 15

7:25 pm - 11:10 pmORD-KGS

19h 45m3 stops

8:35 am - 9:15 pmKGS-ORD

20h 40m3 stops

$927

Find Deal

Fri, Oct 10 - Wed, Oct 15

4:20 pm - 9:10 amORD-KGS

32h 50m1 stop

8:35 am - 9:05 pmKGS-ORD

19h 30m2 stops

$1,054

Find Deal

Fri, Oct 10 - Mon, Oct 27

5:55 pm - 9:10 amORD-KGS

31h 15m2 stops

8:35 am - 9:05 pmKGS-ORD

19h 30m2 stops

$1,111

Find Deal

Fri, Oct 10 - Mon, Oct 27

7:25 pm - 9:30 pmORD-KGS

18h 05m2 stops

8:35 am - 12:35 pmKGS-ORD

36h 00m3 stops

$1,257

Find Deal

Fri, Oct 10 - Wed, Oct 15

9:15 pm - 9:30 pmORD-KGS

16h 15m1 stop

12:10 am - 2:00 pmKGS-ORD

21h 50m2 stops

$1,604

Find Deal

Fri, Oct 10 - Tue, Oct 14

8:35 pm - 5:35 pmORD-KGS

37h 00m2 stops

11:25 am - 3:45 pmKGS-ORD

36h 20m2 stops

$2,242Emirates

Find Deal

Fri, Sep 26 - Mon, Sep 29

Austrian Airlines flights from Chicago to Kos

Our best Austrian Airlines deals on Chicago to Kos flight tickets

Austrian Airlines

Oct 10

ORD4:20 pmChicago O'Hare Intl

17h 35m

1 stop

KGS5:55 pmKos

Oct 15

KGS9:40 pmKos

23h 40m

1 stop

ORD1:20 pmChicago O'Hare Intl

$774

Find similar

Austrian Airlines

Sep 16

ORD4:20 pmChicago O'Hare Intl

20h 30m

1 stop

KGS8:50 pmKos

Sep 24

KGS9:40 pmKos

28h 50m

2 stops

ORD6:30 pmChicago O'Hare Intl

$792

Find similar

Austrian Airlines

Sep 18

ORD4:20 pmChicago O'Hare Intl

20h 25m

1 stop

KGS8:45 pmKos

Sep 24

KGS9:40 pmKos

28h 50m

2 stops

ORD6:30 pmChicago O'Hare Intl

$842

Find similar

SWISS flights from Chicago to Kos

Our best SWISS deals on Chicago to Kos flight tickets

SWISS

Sep 16

ORD7:05 pmChicago O'Hare Intl

16h 50m

1 stop

KGS7:55 pmKos

Sep 23

KGS8:30 pmKos

27h 25m

1 stop

ORD3:55 pmChicago O'Hare Intl

$736

Find similar

SWISS

Sep 16

ORD9:50 pmChicago O'Hare Intl

28h 20m

2 stops

KGS10:10 amKos

Sep 23

KGS8:30 pmKos

27h 25m

1 stop

ORD3:55 pmChicago O'Hare Intl

$933

Find similar

SWISS

Sep 16

ORD4:00 pmChicago O'Hare Intl

19h 55m

2 stops

KGS7:55 pmKos

Sep 24

KGS8:40 pmKos

27h 15m

1 stop

ORD3:55 pmChicago O'Hare Intl

$969

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

4:20 pm-5:55 pm

1 stop17h 35m

Kos

Wed 10/15

9:40 pm-1:20 pm

1 stop23h 40m

$774

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

4:20 pm-9:10 am

1 stop32h 50m

Kos

Mon 10/27

12:40 pm-7:25 pm

1 stop13h 45m

$830

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

4:20 pm-9:10 am

1 stop32h 50m

Kos

Wed 10/15

9:40 pm-5:20 pm

2 stops51h 40m

$870

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

5:55 pm-9:10 am

2 stops31h 15m

Kos

Wed 10/15

9:40 pm-11:30 am

2 stops45h 50m

$897

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

7:25 pm-11:10 pm

3 stops19h 45m

Kos

Wed 10/15

8:35 am-9:15 pm

3 stops20h 40m

$927

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

4:20 pm-9:10 am

1 stop32h 50m

Kos

Mon 10/27

8:35 am-9:05 pm

2 stops19h 30m

$1,054

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

5:55 pm-9:10 am

2 stops31h 15m

Kos

Mon 10/27

8:35 am-9:05 pm

2 stops19h 30m

$1,111

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

7:25 pm-9:30 pm

2 stops18h 05m

Kos

Wed 10/15

8:35 am-12:35 pm

3 stops36h 00m

$1,257

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 10/10

9:15 pm-9:30 pm

1 stop16h 15m

Kos

Tue 10/14

12:10 am-2:00 pm

2 stops21h 50m

$1,604

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Fri 9/26

8:35 pm-5:35 pm

2 stops37h 00m

Kos

Mon 9/29

11:25 am-3:45 pm

2 stops36h 20m

$2,242

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Chicago to Kos

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 Kos?

The cheapest day to depart from Chicago to Kos is on a Wednesday when prices can be found for as low as $982. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,086.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from Chicago in the evening is the least expensive time of day to depart. momondo users have found prices as low as $710 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,086 on average. Flights to Kos from Chicago in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Chicago to Kos

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Kos according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Kos (CHI to KGS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Kos

Direct flights	None

There are no direct flights from Chicago to Kos. There are no popular flight routes from Chicago to Kos.

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How far is Chicago to Kos by plane?
The distance between Chicago and Kos is about 5619.0 mi. A reasonable flight in good conditions will take 16h 15m.
When did momondo last update prices for flights from Chicago to Kos Airport?
Prices for flights from Chicago to Kos Airport are refreshed on a daily basis.
How old do you have to be to fly from Chicago to Kos Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Kos Airport.
What documentation or ID do you need to fly to Kos Airport?
The travel and health documents you'll need for your trip to Kos Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kos Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Kardamena

Marmari

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Kos?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kos from Chicago.

Can I find flights from Chicago to Kos with flexible booking policies on momondo?

Flights from Chicago to Kos with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Kos?

Once you have performed a search for Chicago to Kos flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Kos right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Kos now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kos and let you know when they change.