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$1,136+ Cheap flights from Colorado to Graz (GRZ)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRZ
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Colorado to Graz

Cheapest flights from Colorado to Graz
Explore the most affordable flight options available from Colorado to Graz. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Air Canada deal was found by Cheapflights users on 2/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:15 am
DEN
-
GRZ
2 stops18h 00m
Air Canada
Sun 2/229:50 am
GRZ
-
DEN
2 stops32h 33m
Air Canada
Deal found 2/9$1,136

Find flight deals from Colorado to Graz

Keep the following information in mind while searching for Colorado to Graz flight deals. Data was last updated February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

May

Cheapest in

January

Average price

$818
Provider with most accurate pricing for Denver Intl-Vienna Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Vienna Intl flights.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Best time to book a flight from Colorado to Graz

Have a flexible travel schedule? Discover the best time to fly to Graz from Colorado 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 Colorado to Graz

What is the cheapest month to book a flight from Colorado to Graz?

Currently, April is the cheapest month in which you can book a flight from Colorado to Graz (average of $363). Flying from Colorado to Graz in June is currently the most expensive (average of $782). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Graz. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Graz from Colorado?

    Most people fly into Graz Thalerhof (GRZ) if they book a flight to Graz from Colorado. Thalerhof is conveniently located just 5.2 mi from Graz’s city center.

  • Can I find deals for flights from Colorado to Graz that include hotel bookings?

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

  • How can I find direct flights from Colorado to Graz?

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

  • Can I find deals for business class flights from Colorado to Graz?

    Yes. Cheapflights offers flight deals from Colorado to Graz by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Graz?

    Currently, April is the cheapest month in which you can book a flight from Colorado to Graz (average of $363). Flying from Colorado to Graz in June is currently the most expensive (average of $782). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Colorado to Graz

Discover the top airline that operate flights from Colorado to Graz. 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$664Average$977FlexibilityNo cancel feeOn-time76%

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