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ORD - KGS

$1,066 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 7/12. 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
Sat 6/29
Sat 7/6

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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 42,686,544 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Chicago to Kos currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Chicago to Kos

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Kos.

Recent one-way flight deals from Chicago to Kos

Only flying one-way? Below are some of the best one-way flight deals from Chicago to Kos found on KAYAK recently.

Recent last minute flight deals from Chicago to Kos

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Chicago to Kos.

Recent direct flight deals from Chicago to Kos

The latest deals for direct flights from Chicago to Kos so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Chicago to Kos

Find recent round-trip train or bus tickets from Chicago to Kos.

All round-trip flight deals to Kos

The cheapest plane tickets to Kos found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:25 pm - 10:55 amORD-KGS
31h 30m3 stops
10:35 pm - 9:15 pmKGS-ORD
30h 40m3 stops
$1,066
Find Deal
Fri, Jul 12 - Sat, Jul 27
7:15 pm - 10:15 amORD-KGS
31h 00m2 stops
11:05 am - 12:10 pmKGS-ORD
33h 05m2 stops
$1,083SWISS
Find Deal
Thu, Aug 1 - Sat, Aug 10
2:20 pm - 3:10 pmORD-KGS
16h 50m1 stop
11:05 am - 12:10 pmKGS-ORD
57h 05m2 stops
$1,179SWISS
Find Deal
Thu, Aug 1 - Sat, Aug 10
7:12 pm - 2:00 pmORD-KGS
34h 48m2 stops
1:10 pm - 7:30 amKGS-ORD
26h 20m2 stops
$1,196British Airways
Find Deal
Fri, Jul 12 - Sat, Jul 27
2:20 pm - 3:10 pmORD-KGS
16h 50m1 stop
8:50 pm - 12:10 pmKGS-ORD
23h 20m1 stop
$1,296SWISS
Find Deal
Thu, Aug 1 - Sat, Aug 10
7:25 pm - 10:55 amORD-KGS
31h 30m3 stops
12:40 pm - 9:03 amKGS-ORD
28h 23m2 stops
$1,406
Find Deal
Fri, Jul 12 - Sat, Jul 27
5:11 pm - 9:35 pmORD-KGS
20h 24m2 stops
11:00 pm - 2:00 pmKGS-ORD
23h 00m1 stop
$1,408
Find Deal
Fri, Jul 12 - Sat, Jul 27
9:25 pm - 7:25 pmORD-KGS
14h 00m1 stop
8:10 pm - 12:15 pmKGS-ORD
24h 05m1 stop
$1,470Lufthansa
Find Deal
Fri, Jul 12 - Sat, Jul 27

Good to know

Cheapest flight

$1,066
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 $1,066 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, and oneworld are the airline alliances operating flights between Chicago and Kos, with Star Alliance being the most commonly used for this route.

  • 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 airlines 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 1954 reviews
8.4Crew
7.5Comfort
7.4Food
7.2Entertainment
7.8Boarding
Airline reviews

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

2.0 MediocreRob, May 2024TPA - ZRH
Read more about SWISS reviews

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

Crew members were good. Seats were packed and too tight .

Carry on luggage size for economy passengers significantly smaller than other airlines, so nearly all ecomy passengers had their bags taken and checked.

Had a short layover in Zurich, luggage marked expedite and short layover but still didn’t get luggage when arrived in Split until 3 days later even though husband got his.

On time flight, I requested wheelchair in Zurich , when I arrived they were no where to be found, I had one hour between flights I had to walk with great difficulty.

We had issues with upgrading our seats. The flight itself was fine.

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.

No delays, helpful staff, well organised. The check in and boarding procedures ran smoothly. The only thing that put me off is that the meal had spicy peppers in. I would have appreciated at least a warning (if i couldn't have a choice) so as to simply not eat them because they were too spicy.

Schedule and on time departure and arrival were great. The crew was good, but a change in aircraft bumped many of us from our expected seats. It was a crowded flight, but the cabin crew did their best to keep things under control.

The crew was attentive but not intrusive, and was always kind in every interaction.

Austrian was not the issue. Kayak was terrible The flight was canceled. Frustrating but it can happen. The worst was Kayak's customer support around re-booking. I have chatted with a bot, than with a person who insisted the flight was still on as originally booked. while chatting i went on Austrian web page and told the kayak chat lady that the flight is shown as cancelled. She said she will escalate this and that someone will contact me within the hour. When I have asked her to give me the details of the flight she sees, She gave me the general A to B and return B to A. Totally unhelpful. After two hours I contacted them again, They were still saying the original flight is as scheduled and when I explained again I was told I will be contacted within 2-6 hours. NO ONE CONTACTED ME EVER SINCE! I have than contacted Austrian directly and was rebooked on a difficult flight. Kayak continued to send me irrelevant updates about my original flight. Terrible customer service at time of need.

Management and staff att viena wasn’t professional,and they are not good by how to communicate and solve the problem, I was shocked , as I know Austrian airlines was amusing Thank you

The baggage arrived damaged and i spent EUR 300 on the baggage a month ago. No responsibility from airline or the handles.

The flight was late. We accommodated other missed flights, and the plane was full of people, without space to store carry-on luggage. They lost our checked luggage for the entire flight and delivered it after two days.

Premium Economy is good value in comparison to Business Class. Not all the perks of Business but a lot of leg room and wider seat and elbow room. Food was very good. I even asked for a Gruner Veltliner wine which was not on the trolley and the attendant went into Business/First to get me a glass. Nice little touch. I would like to have a wider selection of music -- more 70's-80's (guess how old I am).

There were a number of passengers scheduled to transfer to the flight from Vienna to Warsaw. None of them made it because the crew failed to assist them in getting to the gate for the Warsaw bound flight in time. It could have been done very easily with proper assistance.

Overall pleasant flight . The lunch was exceptional! Delicious chicken curry with perfect rice and amazing chocolate (Sacher torte) for desert. I have not eaten such a good airplane meal in a very, very long time.

Chicago - Kos Flights

Departure:

Chicago (ORD)United States

Destination:

Kos (KGS)Greece

Cabin classes:

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