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$633+ Cheap flights from O'Hare Intl (ORD) 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KGS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Kos

Best flights from O'Hare Intl to Kos
Discover carefully curated flight deals from O'Hare Intl to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This lastminute.com deal was found by Cheapflights users on 12/11. 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.
Sun 1/256:50 pmORD - KGS
2 stops33h 15mMultiple Airlines
Sun 2/19:05 pmKGS - ORD
2 stops47h 40mMultiple Airlines
Deal found 12/11$633
This Emirates deal was found by Cheapflights users on 12/9. 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 2/47:45 pmORD - KGS
2 stops37h 20mEmirates
Sun 2/812:35 pmKGS - ORD
2 stops34h 20mEmirates
Deal found 12/9$1,802

Find flight deals from O'Hare Intl to Kos

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$633
(lastminute.com)
Provider with most accurate pricing for Chicago O'Hare Intl-Kos flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Kos flights.
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From Chicago O'Hare Intl to Kos
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 December 12, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Kos that are best for you.

Fly from

O'Hare Intl

Fly to

Kos

Route

Depart

Return

Price

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Sun 1/25

6:50 pm-12:05 pm

2 stops33h 15m

Kos

Sun 2/1

9:05 pm-12:45 pm

2 stops47h 40m

$633

ChicagoKos

ORD - KGS

ORDKGS

Chicago O'Hare Intl

Wed 2/4

7:45 pm-5:05 pm

2 stops37h 20m

Kos

Sun 2/8

12:35 pm-2:55 pm

2 stops34h 20m

$1,802

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from O'Hare Intl to Kos

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Kos in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Kos flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Kos flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Kos flights, Cheapflights users trust eDreams the most. eDreams 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 O'Hare Intl Airport-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 O'Hare Intl to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from O'Hare Intl 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.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl?

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

  • How long is the flight from Chicago O'Hare Intl Airport to Kos?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Kos in 37h 20m. Fly via Emirates to get the fastest option. There are 5622 mi between Chicago O'Hare Intl Airport and Kos.

  • Can I find deals for flights from O'Hare Intl to Kos that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Kos?

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

  • Can I find deals for business class flights from O'Hare Intl to Kos?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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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