How do I get Price Alerts for flights from Chicago to Kos?

Search flight deals from Chicago to Kos . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Chicago to Kos with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.

$1,173 Cheap Flights from Chicago to Kos in 2026

1 adult

0 bags

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Find the cheapest flights from Chicago to Kos

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:00 pm - 4:50 pm

ORD

KGS

17h 50m

1 stop

11:40 pm - 1:10 pm

KGS

ORD

21h 30m

1 stop

$1,173Multiple Airlines

Wed, Jul 1 - Mon, Jul 13

10:50 pm - 8:05 am

ORD

KGS

26h 15m

2 stops

8:35 pm - 5:20 pm

KGS

ORD

51h 45m

2 stops

$1,199Multiple Airlines

Sun, Mar 15 - Sat, Mar 21

2:20 pm - 7:40 pm

ORD

KGS

21h 20m

1 stop

11:00 am - 12:35 pm

KGS

ORD

33h 35m

1 stop

$1,215SWISS

Mon, Jun 29 - Mon, Jul 13

2:20 pm - 7:55 pm

ORD

KGS

21h 35m

1 stop

11:00 am - 12:35 pm

KGS

ORD

33h 35m

1 stop

$1,219SWISS

Tue, Jun 23 - Thu, Jul 2

7:05 pm - 10:10 am

ORD

KGS

31h 05m

1 stop

11:00 am - 12:35 pm

KGS

ORD

33h 35m

1 stop

$1,233SWISS

Tue, Jun 30 - Mon, Jul 13

7:05 pm - 7:40 pm

ORD

KGS

16h 35m

1 stop

11:00 am - 12:35 pm

KGS

ORD

33h 35m

1 stop

$1,264SWISS

Mon, Jun 22 - Thu, Jul 2

4:20 pm - 8:00 pm

ORD

KGS

19h 40m

1 stop

8:35 pm - 6:15 pm

KGS

ORD

29h 40m

1 stop

$1,287Multiple Airlines

Sun, Jun 21 - Sat, Jul 4

4:20 pm - 8:00 pm

ORD

KGS

19h 40m

1 stop

11:15 am - 12:55 pm

KGS

ORD

33h 40m

1 stop

$1,296Multiple Airlines

Sun, Jun 28 - Mon, Jul 13

3:35 pm - 11:45 am

ORD

KGS

12h 10m

1 stop

1:30 pm - 7:55 pm

KGS

ORD

14h 25m

1 stop

$1,297Lufthansa

Sun, Jun 21 - Wed, Jul 1

3:35 pm - 11:45 am

ORD

KGS

12h 10m

1 stop

11:00 am - 12:35 pm

KGS

ORD

33h 35m

1 stop

$1,298Multiple Airlines

Sun, Jun 21 - Thu, Jul 2

SWISS flights from Chicago to Kos

Our best SWISS deals on Chicago to Kos flight tickets

SWISS

Jun 29

ORD2:20 pmChicago O'Hare Intl

21h 20m

1 stop

KGS7:40 pmKos

Jul 13

KGS11:00 amKos

33h 35m

1 stop

ORD12:35 pmChicago O'Hare Intl

$1,215

SWISS

Jun 23

ORD2:20 pmChicago O'Hare Intl

21h 35m

1 stop

KGS7:55 pmKos

Jul 2

KGS11:00 amKos

33h 35m

1 stop

ORD12:35 pmChicago O'Hare Intl

$1,219

SWISS

Jun 30

ORD7:05 pmChicago O'Hare Intl

31h 05m

1 stop

KGS10:10 amKos

Jul 13

KGS11:00 amKos

33h 35m

1 stop

ORD12:35 pmChicago O'Hare Intl

$1,233

Lufthansa flights from Chicago to Kos

Our best Lufthansa deals on Chicago to Kos flight tickets

Lufthansa

Jun 21

ORD3:35 pmChicago O'Hare Intl

12h 10m

1 stop

KGS11:45 amKos

Jul 1

KGS1:30 pmKos

14h 25m

1 stop

ORD7:55 pmChicago O'Hare Intl

$1,297

Lufthansa

Jun 21

ORD3:35 pmChicago O'Hare Intl

12h 10m

1 stop

KGS11:45 amKos

Jul 6

KGS11:15 amKos

33h 40m

1 stop

ORD12:55 pmChicago O'Hare Intl

$1,318

Lufthansa

Jun 22

ORD7:40 pmChicago O'Hare Intl

33h 00m

2 stops

KGS12:40 pmKos

Jul 1

KGS1:30 pmKos

14h 25m

1 stop

ORD7:55 pmChicago O'Hare Intl

$1,326

Fly from

Fly to

Route

Depart

Return

Price

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Wed 7/1

3:00 pm-4:50 pm

1 stop17h 50m

Kos

Mon 7/13

11:40 pm-1:10 pm

1 stop21h 30m

$1,173

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 3/15

10:50 pm-8:05 am

2 stops26h 15m

Kos

Sat 3/21

8:35 pm-5:20 pm

2 stops51h 45m

$1,199

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Mon 6/29

2:20 pm-7:40 pm

1 stop21h 20m

Kos

Mon 7/13

11:00 am-12:35 pm

1 stop33h 35m

$1,215

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Tue 6/23

2:20 pm-7:55 pm

1 stop21h 35m

Kos

Thu 7/2

11:00 am-12:35 pm

1 stop33h 35m

$1,219

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Tue 6/30

7:05 pm-10:10 am

1 stop31h 05m

Kos

Mon 7/13

11:00 am-12:35 pm

1 stop33h 35m

$1,233

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Mon 6/22

7:05 pm-7:40 pm

1 stop16h 35m

Kos

Thu 7/2

11:00 am-12:35 pm

1 stop33h 35m

$1,264

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 6/21

4:20 pm-8:00 pm

1 stop19h 40m

Kos

Sat 7/4

8:35 pm-6:15 pm

1 stop29h 40m

$1,287

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 6/28

4:20 pm-8:00 pm

1 stop19h 40m

Kos

Mon 7/13

11:15 am-12:55 pm

1 stop33h 40m

$1,296

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 6/21

3:35 pm-11:45 am

1 stop12h 10m

Kos

Wed 7/1

1:30 pm-7:55 pm

1 stop14h 25m

$1,297

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 6/21

3:35 pm-11:45 am

1 stop12h 10m

Kos

Thu 7/2

11:00 am-12:35 pm

1 stop33h 35m

$1,298

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Fastest flight time	21h 20m
Direct flights	None

The fastest flight from Chicago to Kos takes 21h 20m

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

Search flight deals

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 21h 20m.
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.

How do I get Price Alerts for flights from Chicago to Kos?
Search flight deals from Chicago to Kos. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Chicago to Kos with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.