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ORD - KGS

$777 Find cheap flights from Chicago to Kos

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Kos departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/6
Thu 6/13

Search hundreds of travel sites at once for deals on flights to Kos

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Kos, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Kos, as well as popular online travel agencies
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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Cheap flight deals from Chicago to Kos (ORD-KGS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Kos that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:45 pm - 5:20 pmORD-KGS
17h 35m2 stops
11:20 am - 12:30 pmKGS-ORD
33h 10m1 stop
$777
Find Deal
Wed, Aug 21 - Wed, Sep 25
2:30 pm - 5:20 pmORD-KGS
18h 50m2 stops
1:25 pm - 12:30 pmKGS-ORD
31h 05m2 stops
$862Lufthansa
Find Deal
Wed, Aug 21 - Wed, Sep 25
3:10 pm - 5:20 pmORD-KGS
18h 10m1 stop
11:20 am - 12:30 pmKGS-ORD
33h 10m1 stop
$905
Find Deal
Wed, Aug 21 - Wed, Sep 25
9:45 am - 8:25 pmORD-KGS
26h 40m3 stops
10:00 pm - 9:34 pmKGS-ORD
31h 34m3 stops
$1,819
Find Deal
Wed, Aug 21 - Wed, Sep 25
3:50 pm - 7:55 pmORD-KGS
20h 05m1 stop
8:40 pm - 3:55 pmKGS-ORD
27h 15m1 stop
$1,821
Find Deal
Mon, Jul 1 - Wed, Jul 31
9:25 pm - 12:40 pmORD-KGS
31h 15m2 stops
11:20 am - 12:30 pmKGS-ORD
33h 10m1 stop
$1,832Lufthansa
Find Deal
Mon, Jul 1 - Wed, Jul 31
9:25 pm - 12:40 pmORD-KGS
31h 15m2 stops
1:25 pm - 12:30 pmKGS-ORD
31h 05m2 stops
$1,860Lufthansa
Find Deal
Mon, Jul 1 - Wed, Jul 31
8:38 pm - 9:10 pmORD-KGS
40h 32m3 stops
10:00 pm - 11:59 pmKGS-ORD
33h 59m3 stops
$2,124
Find Deal
Mon, Jul 1 - Wed, Jul 31

Good to know

Cheapest flight

$777
Flight from Chicago to Kos

When to book flights from Chicago to Kos

Are your dates flexible? Find out the best times to travel from Chicago to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Kos flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Kos?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Kos was $777 for a round-trip ticket.

  • Do I need a passport to fly between Chicago and Kos?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Kos.

  • Which airports will I be using when flying from Chicago to Kos?

    Chicago airport is called Chicago O'Hare Intl and the only airport in Kos is Kos.

  • Which aircraft models fly most regularly from Chicago to Kos?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Kos?

    Star Alliance is the only airline alliance operating flights between Chicago and Kos.

  • How does KAYAK find such low prices on flights from Chicago to Kos?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Kos.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Kos?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Kos?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kos with an airline and back to Chicago with another airline. Booking your flights between Chicago and KGS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Kos?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kos from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Chicago to Kos

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Kos. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Kos? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
SWISSOverall score based on 2011 reviews
7.6Comfort
8.4Crew
7.4Food
7.2Entertainment
7.9Boarding
Airline reviews

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

2.0 MediocreAnonymous, Apr 2024DEN - ORD
Read more about SWISS reviews

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

So terrible. They would not rebook me for a flight until 2 days. I had to spend so much money to get my own flight. They were rude and not helpful.

Overall a good experience, the flight was on time, the crew very attentive and friendly. However the seats are too cramped, there is no space, and as soon as the person in front reclines the seat, it's literally in your face.

Bag lost. Lost bag recovery process is an unsatisfying customer experience. Because 1) bag is still lost but also 2) the process is outdated and form-heavy and 3) in our case also involved a long line.

We were very impressed with Swiss Air. The service was exceptional. Unfortunately, we had a baby behind us that screamed for hours. , It was a nightmare, though I completely understand that it was not Swiss Airs fault.

We had to move to terminal 5 for the next part of our trip. Very un-organized and difficult.

Missed connecting train since flight was late into Zurich and I had to stay at airport hotel because of it as well as I had to repurchase train ticket

Cons: "Flight was completely full and certain passengers were belligerent about wearing face masks. The cabin crew did not enforce mask wearing, stating “we are not the police”"
Pros: "Nothing. There was no flight. The flight was cancelled and you did not notify us. We found it out ourselves by accident. We tried to contact you guys but we could not call or anything other. You guys suck"
Cons: "Notify your customers when the flight is cancelled. Thats the least you can do. Very unprofessional"
Cons: "I fell sick and my doctor advised against flying. Tried calling Swiss Air and JustFly.com: 6 calls back and forth and 7 hours on hold, no help. Finally got advised on driving to the airport to make the flight change at the Swiss Air counter at O’Hare. The representative told me to bring a note from doctor to switch flights. I did the next day. The same representative looked me in the eye after advising the day before and said there’s nothing she could do. Why make an elderly sick person drive to the airport again if you know already you cannot help??Absolutely terrible experience, no help from the airline or travel agency. Total loss of the full price of the ticket."

Chicago - Kos Flights

Departure:

Chicago (ORD)United States

Destination:

Kos (KGS)Greece

Cabin classes:

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