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Kos

$832+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KGS
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,016
(Ovago)
Provider with most accurate pricing for Denver Intl-Kos flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Kos flights.
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From Denver Intl to Kos
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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 May 1, 2025.

This SWISS deal was found by Cheapflights users on 4/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:18 amDEN - KGS
2 stops23h 37mSWISS
Tue 10/148:30 pmKGS - DEN
2 stops29h 05mSWISS
Deal found 4/28$832
This Lufthansa deal was found by Cheapflights users on 4/28. 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.
Tue 9/234:15 pmDEN - KGS
1 stop17h 50mLufthansa
Wed 10/87:55 pmKGS - DEN
1 stop27h 25mLufthansa
Deal found 4/28$834
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Sat 9/275:58 pmDEN - KGS
2 stops32h 52mMultiple Airlines
Fri 10/109:35 pmKGS - DEN
2 stops28h 00mMultiple Airlines
Deal found 4/28$904
This Austrian Airlines deal was found by Cheapflights users on 4/28. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:40 amDEN - KGS
2 stops26h 10mAustrian Airlines
Fri 10/109:35 pmKGS - DEN
2 stops28h 00mAustrian Airlines
Deal found 4/28$954
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/282:06 pmDEN - KGS
2 stops21h 54mBritish Airways
Mon 10/1310:00 pmKGS - DEN
1 stop27h 25mBritish Airways
Deal found 4/28$1,197
This AranGrant deal was found by Cheapflights users on 4/28. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:25 amDEN - KGS
2 stops23h 10mBrussels Airlines
Sat 10/118:35 pmKGS - DEN
2 stops30h 43mBrussels Airlines
Deal found 4/28$5,334

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 May 1, 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 9/23

11:18 am-7:55 pm

2 stops23h 37m

Kos

Tue 10/14

8:30 pm-4:35 pm

2 stops29h 05m

$832

DenverKos

DEN - KGS

DENKGS

Denver Intl

Tue 9/23

4:15 pm-7:05 pm

1 stop17h 50m

Kos

Wed 10/8

7:55 pm-2:20 pm

1 stop27h 25m

$834

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

5:58 pm-11:50 am

2 stops32h 52m

Kos

Fri 10/10

9:35 pm-4:35 pm

2 stops28h 00m

$904

DenverKos

DEN - KGS

DENKGS

Denver Intl

Tue 9/23

9:40 am-8:50 pm

2 stops26h 10m

Kos

Fri 10/10

9:35 pm-4:35 pm

2 stops28h 00m

$954

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sun 9/28

6:35 pm-9:00 pm

1 stop17h 25m

Kos

Mon 10/13

10:00 pm-4:25 pm

1 stop27h 25m

$992

DenverKos

DEN - KGS

DENKGS

Denver Intl

Fri 9/26

11:25 am-7:35 pm

2 stops23h 10m

Kos

Sat 10/11

8:35 pm-6:18 pm

2 stops30h 43m

$5,334

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from Denver 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 Denver to Kos in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 Denver-Kos flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Denver-Kos flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Denver-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Kos flights, Cheapflights users trust AranGrant the most. AranGrant 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 Denver-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 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.

Cheapflights Insights

Everything you need to know about your flight from Denver to Kos

Rainfall in Kos by month

Plan your trip to Kos by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kos ranges from 0.1 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. July is typically the driest time to visit Kos when rainfall is around 0.1 in.

Temperature in Kos by month

Plan your trip to Kos by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 50.0 F).

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.

  • 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.

Browse thousands of different options on Cheapflights for your next trip

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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.
Denver to Mykonos flights
Denver to Santorini flights
Denver to Naxos flights
Denver to Paleochori flights
Denver to Parikia flights

Top airline flying from Denver to Kos

Discover the top airline that operate flights from Denver to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$1,049Average$1,169FlexibilityNo cancel feeOn-time79%

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