Cheap flights from Denver to Kos from $1,584

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Kos departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Lufthansa Logo
5:58 pm - 11:50 amDEN-KGS
32h 52m2 stops
Lufthansa Logo
1:30 pm - 3:35 pmKGS-DEN
35h 05m1 stop
$1,584Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
5:58 pm - 11:50 amDEN-KGS
32h 52m2 stops
Lufthansa Logo
1:30 pm - 7:36 pmKGS-DEN
39h 06m2 stops
$1,589Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
4:15 pm - 11:50 amDEN-KGS
34h 35m1 stop
Lufthansa Logo
1:30 pm - 3:35 pmKGS-DEN
35h 05m1 stop
$1,707Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
5:58 pm - 11:50 amDEN-KGS
32h 52m2 stops
Lufthansa Logo
1:30 pm - 11:30 pmKGS-DEN
19h 00m2 stops
$2,052Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
4:38 pm - 11:50 amDEN-KGS
34h 12m2 stops
Lufthansa Logo
1:30 pm - 3:35 pmKGS-DEN
35h 05m1 stop
$2,067Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
4:15 pm - 11:50 amDEN-KGS
34h 35m1 stop
Lufthansa Logo
1:30 pm - 3:35 pmKGS-DEN
35h 05m1 stop
$2,187Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1

Lufthansa flights from Denver to Kos

Our best Lufthansa deals on Denver to Kos flight tickets
Lufthansa
Sep 27
DEN4:38 pmDenver Intl
34h 12m
2 stops
KGS11:50 amKos
Oct 1
KGS1:30 pmKos
35h 05m
1 stop
DEN3:35 pmDenver Intl
Lufthansa
Sep 27
DEN5:58 pmDenver Intl
32h 52m
2 stops
KGS11:50 amKos
Oct 1
KGS1:30 pmKos
39h 06m
2 stops
DEN7:36 pmDenver Intl
Lufthansa
Sep 27
DEN4:15 pmDenver Intl
34h 35m
1 stop
KGS11:50 amKos
Oct 1
KGS1:30 pmKos
35h 05m
1 stop
DEN3:35 pmDenver Intl

momondo 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Denver to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

5:58 pm-11:50 am

2 stops32h 52m

Kos

Wed 10/1

1:30 pm-3:35 pm

1 stop35h 05m

$1,584

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

5:58 pm-11:50 am

2 stops32h 52m

Kos

Wed 10/1

1:30 pm-7:36 pm

2 stops39h 06m

$1,589

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

4:15 pm-11:50 am

1 stop34h 35m

Kos

Wed 10/1

1:30 pm-3:35 pm

1 stop35h 05m

$1,707

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

5:58 pm-11:50 am

2 stops32h 52m

Kos

Wed 10/1

1:30 pm-11:30 pm

2 stops19h 00m

$2,052

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

4:38 pm-11:50 am

2 stops34h 12m

Kos

Wed 10/1

1:30 pm-3:35 pm

1 stop35h 05m

$2,067

DenverKos

DEN - KGS

DENKGS

Denver Intl

Sat 9/27

4:15 pm-11:50 am

1 stop34h 35m

Kos

Wed 10/1

1:30 pm-3:35 pm

1 stop35h 05m

$2,187

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Denver to Kos

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Kos according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Kos (DEN to KGS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Kos

Direct flights

None
There are no direct flights from Denver to Kos. There are no popular flight routes from Denver to Kos.
  • How far is Denver Intl to Kos by plane?

    There are 6332.4 mi between Denver Intl and Kos. 32h 52m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Denver Intl Airport to Kos Airport?

    Prices for flights from Denver Intl Airport to Kos Airport are updated daily.

  • How old do you have to be to fly from Denver Intl Airport to Kos Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Kos Airport.

  • What documentation or ID do you need to fly to Kos Airport?

    The travel and health documents required for your trip to Kos Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kos Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Denver to Kos?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Denver from Kos. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Denver to Kos with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Kardamena
Marmari

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Kos?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Kos. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Denver to Kos with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kos from Denver which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Denver to Kos?

momondo helps you find the best flight between Denver and Kos by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Denver to Kos right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Denver to Kos flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Wed 10/15
Wed 10/22

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