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Kos

$829+ Cheap flights from Denver (DEN) 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KGS
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Denver to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 August 20, 2025.

Round-trip from

$829
(FlightHub)
From Denver Intl to Kos
Search Deals

Find flight deals from Denver to Kos

Cheapest flights from Denver to Kos
Explore the most affordable flight options available from Denver to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:53 amDEN - KGS
2 stops21h 12mMultiple Airlines
Wed 12/312:35 pmKGS - DEN
2 stops36h 25mMultiple Airlines
Deal found 8/18$829
This United deal was found by Cheapflights users on 8/18. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:00 amDEN - KGS
2 stops25h 05mMultiple Airlines
Wed 12/38:35 amKGS - DEN
2 stops38h 05mMultiple Airlines
Deal found 8/18$850
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:53 amDEN - KGS
2 stops21h 12mMultiple Airlines
Thu 12/48:35 pmKGS - DEN
2 stops27h 00mMultiple Airlines
Deal found 8/18$877
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:59 pmDEN - KGS
1 stop29h 51mLufthansa
Thu 10/97:30 pmKGS - DEN
2 stops27h 15mLufthansa
Deal found 8/18$902
This Ovago deal was found by Cheapflights users on 8/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:45 pmDEN - KGS
2 stops17h 20mMultiple Airlines
Tue 12/28:35 pmKGS - DEN
2 stops28h 25mMultiple Airlines
Deal found 8/18$913
This Ovago deal was found by Cheapflights users on 8/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:45 pmDEN - KGS
2 stops17h 20mMultiple Airlines
Thu 12/48:35 pmKGS - DEN
2 stops27h 00mMultiple Airlines
Deal found 8/18$924
This Gurufare deal was found by Cheapflights users on 8/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:20 pmDEN - KGS
2 stops18h 45mMultiple Airlines
Wed 12/38:35 amKGS - DEN
2 stops19h 20mMultiple Airlines
Deal found 8/18$1,011
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:20 pmDEN - KGS
2 stops18h 45mMultiple Airlines
Tue 12/28:35 pmKGS - DEN
2 stops28h 25mMultiple Airlines
Deal found 8/18$1,019
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Thu 10/24:40 pmDEN - KGS
3 stops33h 15mMultiple Airlines
Thu 10/96:00 amKGS - DEN
3 stops21h 55mMultiple Airlines
Deal found 8/18$1,131
This Lufthansa deal was found by Cheapflights users on 8/18. 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.
Sat 9/274:38 pmDEN - KGS
2 stops34h 12mLufthansa
Wed 10/11:30 pmKGS - DEN
2 stops19h 00mLufthansa
Deal found 8/18$1,569

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 August 20, 2025.
Use the filters below to find and compare flights from Denver to Kos that are best for you.

Fly from

Denver

Fly to

Kos

Route

Depart

Return

Price

DenverKos

DEN - KGS

DENKGS

Denver Intl

Tue 11/18

9:53 am-4:05 pm

2 stops21h 12m

Kos

Wed 12/3

12:35 pm-4:00 pm

2 stops36h 25m

$829

DenverKos

DEN - KGS

DENKGS

Denver Intl

Tue 11/18

9:53 am-8:05 pm

2 stops25h 12m

Kos

Tue 12/2

8:35 pm-4:00 pm

2 stops28h 25m

$829

DenverKos

DEN - KGS

DENKGS

Denver Intl

Wed 11/19

6:00 am-4:05 pm

2 stops25h 05m

Kos

Wed 12/3

8:35 am-1:40 pm

2 stops38h 05m

$850

DenverKos

DEN - KGS

DENKGS

Denver Intl

Tue 11/18

9:53 am-4:05 pm

2 stops21h 12m

Kos

Thu 12/4

8:35 pm-2:35 pm

2 stops27h 00m

$877

DenverKos

DEN - KGS

DENKGS

Denver Intl

Thu 10/2

5:59 pm-8:50 am

1 stop29h 51m

Kos

Thu 10/9

7:30 pm-1:45 pm

2 stops27h 15m

$902

DenverKos

DEN - KGS

DENKGS

Denver Intl

Wed 11/19

5:45 pm-8:05 pm

2 stops17h 20m

Kos

Tue 12/2

8:35 pm-4:00 pm

2 stops28h 25m

$913

DenverKos

DEN - KGS

DENKGS

Denver Intl

Wed 11/19

5:45 pm-8:05 pm

2 stops17h 20m

Kos

Thu 12/4

8:35 pm-2:35 pm

2 stops27h 00m

$924

DenverKos

DEN - KGS

DENKGS

Denver Intl

Thu 11/20

4:20 pm-5:05 pm

2 stops15h 45m

Kos

Thu 12/4

8:35 am-6:55 pm

2 stops19h 20m

$1,011

DenverKos

DEN - KGS

DENKGS

Denver Intl

Thu 11/20

4:20 pm-8:05 pm

2 stops18h 45m

Kos

Wed 12/3

8:35 am-6:55 pm

2 stops19h 20m

$1,011

DenverKos

DEN - KGS

DENKGS

Denver Intl

Thu 11/20

4:20 pm-8:05 pm

2 stops18h 45m

Kos

Tue 12/2

8:35 pm-4:00 pm

2 stops28h 25m

$1,019

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Denver to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Denver 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 Denver to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to Kos?

    A quick flight from Denver to Kos can take about 29h 51m. Lufthansa provides one of the quickest options available for as low as $902. There are 6315 mi between Denver and Kos.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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.

See more FAQs

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Alternative routes for Denver to Kos

See prices for flight routes from nearby airports that may be better suited for you.
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