$626 Cheap Brussels Airlines flights Denver (DEN) to Kos (KGS)

View $626 flight on Mon, Sep 22, 2025Opens in a new window

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$626 Cheap Brussels Airlines flights Denver (DEN) to Kos (KGS)

Prices were available within the past 7 days and start at $626 for one-way flights and $1,966 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Brussels Airlines
Mon, Jul 28 - Tue, Aug 5
DEN
Denver
KGS
Kos
$1,966 Roundtrip, found 17 hours ago
$1,966
Roundtrip
found 17 hours ago
Select Brussels Airlines flight, departing Mon, Jul 28 from Denver to Kos, returning Tue, Aug 5, priced at $1,966 found 17 hours ago
Flights from Denver (DEN) to Kos (KGS)
Origin airport
Denver Intl.
Destination airport
Kos Island Intl.
Airlines serving
Austrian Airlines, Brussels Airlines, Lufthansa, Swiss International Air Lines
Popular airline
Swiss International Air Lines
Distance
6319 mi

Frequently asked questions

How much is a Brussels Airlines flight from Denver Intl. Airport (DEN) to Kos Island Intl. Airport (KGS)?
Set the "Price (lowest to highest)" filter on Expedia to find cheap Brussels Airlines round-trip flights from $1,966 from DEN to KGS. Affordable one-way fares from $626 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to KGS with Brussels Airlines?
Search for one-way or round-trip flights to Kos in December or February. You could find lower fares with Brussels Airlines during these off-peak months.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Kos Island Intl. Airport (KGS) with Brussels Airlines?
Search for Brussels Airlines flights from DEN to KGS about one month before you want to leave. The cheapest time to book an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or fare class, the best day to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Brussels Airlines fly nonstop from Denver Intl. Airport (DEN) to Kos Island Intl. Airport (KGS)?
Click on the "Nonstop" filter when browsing for direct Brussels Airlines flights from DEN to KGS. It's also a good way to compare other airlines offering the same direct route.
What is the earliest Brussels Airlines flight from DEN to KGS?
To find the earliest departure from DEN to KGS with Brussels Airlines, filter your search by "Early Morning" and "Morning." Choosing an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Brussels Airlines fly into in Kos?
Brussels Airlines flights from Denver Intl. Airport (DEN) to Kos come in to Kos Island Intl. Airport (KGS). This is the main gateway here.
What kind of luggage can I take on a Brussels Airlines flight from Denver Intl. Airport (DEN) to Kos Island Intl. Airport (KGS)?
A standard economy ticket with Brussels Airlines from DEN to KGS includes 1 cabin bag and a small personal item. Your hand luggage allowance is 1 cabin bag up to 35 lb with dimensions not exceeding 21 inches x 15 inches x 9 inches. Size and weight restrictions can differ based on your cabin class and airfare type. To avoid unexpected fees at the terminal, check your Brussels Airlines booking or visit the airline's website before you start to pack.
Why fly with Brussels Airlines from DEN to KGS?
A rewarding loyalty program and the ability to rack up points through Miles and More are the start of the reasons to travel from DEN to KGS with Brussels Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* alongside Brussels Airlines's loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Brussels Airlines flight from Denver Intl. Airport (DEN) to Kos Island Intl. Airport (KGS)?
Depending on the type of fare you purchased, a fee will generally apply if you cancel or change your booking more than 24 hours after it's confirmed. To find tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when searching for flights. For additional information on canceling or modifying your reservation, visit "Trips," select your flight and tick "Manage Booking."

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