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Kos

$468+ Cheap flights from Chicago (CHI) to Kos (KGS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — KGS
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
1 adult, Economy
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Cheap flight deals from Chicago to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 14, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
1 star

Round-trip from

$918
(Mytrip)

One-way from

$697
(SWISS)
Provider with most accurate pricing for Chicago (CHI)-Kos flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Kos flights.
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From Chicago (CHI) to Kos
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One-way flight from Chicago (CHI) to Kos
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Find flight deals from Chicago to Kos

Cheapest flights from Chicago to Kos
Explore the most affordable flight options available from Chicago to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.

This Mytrip deal was found by Cheapflights users on 3/12. 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 4/267:25 pmORD - KGS
2 stops20h 25mMultiple Airlines
Sat 5/312:40 pmKGS - ORD
2 stops26h 23mMultiple Airlines
Deal found 3/12$772
This Lufthansa deal was found by Cheapflights users on 3/12. 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 3/12$1,071
This SWISS deal was found by Cheapflights users on 3/12. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:20 pmORD - KGS
1 stop21h 20mSWISS
Mon 9/2911:00 amKGS - ORD
1 stop33h 10mSWISS
Deal found 3/12$1,225
This Emirates deal was found by Cheapflights users on 3/12. 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 3/268:45 pmORD - KGS
2 stops38h 25mEmirates
Tue 4/2911:25 amKGS - ORD
2 stops36h 20mEmirates
Deal found 3/12$2,169

Find flights from Chicago to Kos within your budget

Customize your flight search to find flights from Chicago 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 March 14, 2025.

Fly from

Chicago

Fly to

Kos

Route

Depart

Return

Price

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 4/26

7:25 pm-11:50 pm

2 stops20h 25m

Kos

Sat 5/3

12:40 pm-7:03 am

2 stops26h 23m

$772

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Wed 4/23

9:40 pm-8:50 am

2 stops51h 10m

Kos

Wed 4/30

1:30 pm-7:55 pm

1 stop14h 25m

$1,105

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Mon 8/25

2:20 pm-7:40 pm

1 stop21h 20m

Kos

Mon 9/29

11:00 am-12:10 pm

1 stop33h 10m

$1,225

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Wed 3/26

8:45 pm-6:10 pm

2 stops38h 25m

Kos

Tue 4/29

11:25 am-3:45 pm

2 stops36h 20m

$2,169

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Tue 4/15

7:25 pm-10:15 am

3 stops30h 50m

$468

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Tue 4/15

6:35 pm-10:15 am

1 stop31h 40m

$697

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sat 4/26

10:30 pm-11:50 am

2 stops29h 20m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

  • Most accurate provider: When it comes to deals on Chicago-Kos flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Kos flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Kos flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Kos flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Kos

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

Travel insights for flights from Chicago to Kos

Get recent, data-driven insights about flights from Chicago to Kos including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Chicago 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 March 14, 2025.

It’s optimal to fly from Chicago to Kos at noon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.

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 March 14, 2025.
Emirates
8.0
Very good
3,202 reviews

Boarding

8.1

Overall

8.0

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

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
3,202 reviews
Emirates
8.0
Very good
3,202 reviews

Boarding

8.1

Overall

8.0

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

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
1,564 reviews
Emirates
8.0
Very good
3,202 reviews

Boarding

8.1

Overall

8.0

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

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
6,940 reviews
Emirates
8.0
Very good
3,202 reviews

Boarding

8.1

Overall

8.0

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

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 Chicago 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 Chicago?

    Most people fly into Kos (KGS) if they book a flight to Kos from Chicago. On average, Kos has 0 inbound flights from Chicago per day from 1 airline. Kos is conveniently located just 12.8 mi from Kos’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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.

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Top airline flying from Chicago to Kos

Discover the top airline that operate flights from Chicago 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 March 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$613Average$877FlexibilityNo cancel feeOn-time79%
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