ORD - KGS

$1,798 Find Cheap Flights from Chicago to Kos - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,638
Typical prices: $958-$1,345
SWISS
Sat 5/12Sat 5/26
ORD - KGS • 2 stops
Top layover airports
Zurich (ZRH)
Cheapest • Avg $1,107 (round-trip)
Munich Franz Josef Strauss (MUC)
Shortest trip • 13h 30m (one-way)
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Cheap Flights from Chicago to Kos (ORD-KGS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Kos

Wed, May 12 - Wed, May 26
SWISS Logo
9:30 pm - 3:10 pmORD  Chicago O'Hare Intl-KGS Kos
33h 40m2 stops London Heathrow Zurich
SWISS Logo
8:40 pm - 12:35 pmKGS  Kos-ORD Chicago O'Hare Intl
23h 55m1 stop Zurich
$1,638SWISS
Wed, May 12 - Wed, May 26
SWISS Logo
6:10 pm - 3:10 pmORD  Chicago O'Hare Intl-KGS Kos
37h 00m2 stops London Heathrow Zurich
SWISS Logo
8:40 pm - 2:10 pmKGS  Kos-ORD Chicago O'Hare Intl
25h 30m2 stops Zurich Amsterdam Schiphol
$1,655SWISS
Tue, Dec 22 - Tue, Dec 29
Multiple Airlines Logo
11:45 am - 8:00 pmORD  Chicago O'Hare Intl-KGS Kos
24h 15m2 stops Istanbul Athens Eleftherios V.
Multiple Airlines Logo
8:25 am - 6:20 pmKGS  Kos-ORD Chicago O'Hare Intl
17h 55m2 stops Athens Eleftherios V. Istanbul
$1,798Multiple Airlines
Tue, Dec 22 - Tue, Dec 29
Multiple Airlines Logo
12:50 pm - 8:00 pmORD  Chicago O'Hare Intl-KGS Kos
23h 10m3 stops Toronto Pearson Intl Frankfurt am Main Athens Eleftherios V.
Multiple Airlines Logo
8:35 pm - 9:20 pmKGS  Kos-ORD Chicago O'Hare Intl
32h 45m3 stops Athens Eleftherios V. Bucharest Otopeni Intl Belgrade Nikola Tesla
$1,889Multiple Airlines
Tue, Dec 22 - Tue, Dec 29
Multiple Airlines Logo
12:50 pm - 8:00 pmORD  Chicago O'Hare Intl-KGS Kos
23h 10m3 stops Toronto Pearson Intl Frankfurt am Main Athens Eleftherios V.
Multiple Airlines Logo
8:25 am - 10:00 amKGS  Kos-ORD Chicago O'Hare Intl
33h 35m2 stops Athens Eleftherios V. Istanbul
$1,907Multiple Airlines
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Kos flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Kos?

Round-trip flights from Chicago O'Hare Intl Airport to Kos typically range from $958 to $1,345. The lowest price found in the past 5 days was $1,638, on SWISS.

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Key details for Chicago O'Hare Intl Airport to Kos flights

Cheapest flight

$1,638
Round-trip flight from Chicago O'Hare Intl Airport 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

Your Chicago O'Hare Intl Airport to Kos flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Kos?

    Only Economy Class is available on flights from Chicago O'Hare Intl Airport to Kos.

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

    There are currently no nonstop flights available from Chicago O'Hare Intl Airport to Kos. Flights with 1 layover take between 13h 30m and 23h 57m in total, depending on the connection.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Kos?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Chicago O'Hare Intl Airport to Kos flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Kos range from $958 to $1,345, with an average of $1,049 over the past 12 months. Anything below $958 counts as a good deal.

  • Have flight prices from Chicago O'Hare Intl Airport to Kos changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,638 to $1,907. That means the highest observed fare was about 16% higher than the lowest one.

  • What car rental options are available at Kos Airport (KGS)?

    Kos Airport (KGS) hosts 5 major car rental companies, with daily rates averaging $34 for economy cars. Top options include:

    • ABBYCAR
    • Exer Rent a Car
    • Caldera
    • Europcar
    • Alma Car Hire

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Kos?

    Flights from Chicago O'Hare Intl Airport to Kos usually depart from Chicago O'Hare Intl (ORD) and arrive at Kos (KGS).

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Kos pass through?

    One-stop flights from Chicago O'Hare Intl Airport to Kos most commonly connect through:

    • Zurich (ZRH) - 50% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 38% of one-stop connections
    • Athens Eleftherios V. (ATH) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Kos?

    Yes. Flexible dates can save you up to 40% on flights from Chicago O'Hare Intl Airport to Kos. Friday is the cheapest departure day at $972 round-trip on average, while Sunday is the most expensive at $1,599, a difference of $627.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Kos?

    Flying via Munich Franz Josef Strauss (MUC) gives the shortest average 1-stop total travel time at 13h 30m, compared with 14h 44m via Athens Eleftherios V. (ATH) and 23h 57m via Zurich (ZRH).

  • What is the time difference between Chicago O'Hare Intl Airport and Kos?

    Kos is 8 hours ahead of Chicago O'Hare Intl Airport (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Chicago O'Hare Intl Airport to Kos flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $972, about $627 less than Sunday fares (39% savings) based on the last 12 months.

More options for your flight from Chicago to Kos

Complete your trip to Kos with a hotel stay or car rental

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