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$434+ Cheap flights from Colorado to Graz (GRZ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRZ
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Colorado to Graz

Keep the following information in mind while searching for Colorado to Graz flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$700
(Lufthansa)

One-way from

$434
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$868
Provider with most accurate pricing for Denver Intl-Vienna Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Vienna Intl flights.
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From Colorado to Graz Thalerhof
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One-way flight from Colorado to Graz Thalerhof
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Highest demand for flights based on searches. 15% potential increase in price ($167 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 6, 2025.

This Gotogate deal was found by Cheapflights users on 11/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:30 pmDEN - GRZ
2 stops38h 10mMultiple Airlines
Tue 1/62:15 pmGRZ - DEN
2 stops28h 08mMultiple Airlines
Deal found 11/5$1,349
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:45 pmDEN - GRZ
1 stop21h 00mLufthansa
Tue 1/61:50 pmGRZ - DEN
1 stop32h 45mLufthansa
Deal found 11/5$1,388
This Flysmarter deal was found by Cheapflights users on 11/5. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:25 pmDEN - GRZ
2 stops18h 15mAir Canada
Tue 1/69:50 amGRZ - DEN
3 stops20h 09mAir Canada
Deal found 11/5$1,391
This Gotogate deal was found by Cheapflights users on 11/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:25 pmDEN - GRZ
2 stops18h 15mMultiple Airlines
Tue 1/61:50 pmGRZ - DEN
1 stop32h 45mMultiple Airlines
Deal found 11/5$1,397
This Gotogate deal was found by Cheapflights users on 11/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:45 pmDEN - GRZ
1 stop21h 05mLufthansa
Tue 1/61:50 pmGRZ - DEN
1 stop32h 45mLufthansa
Deal found 11/5$1,566
This Flysmarter deal was found by Cheapflights users on 11/5. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/151:25 pmDEN - GRZ
2 stops15h 30mAir Canada
Tue 1/69:50 amGRZ - DEN
3 stops20h 09mAir Canada
Deal found 11/5$1,591

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Graz 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 November 6, 2025.
Use the filters below to find and compare flights from Colorado to Graz that are best for you.

Fly from

Colorado

Fly to

Graz

Route

Depart

Return

Price

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Wed 3/11

5:20 pm-10:40 pm

1 stop22h 20m

Graz Thalerhof

Sun 3/15

2:25 pm-3:35 pm

2 stops56h 10m

$700

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sat 1/17

5:42 pm-3:40 pm

2 stops37h 58m

Graz Thalerhof

Wed 4/15

6:00 am-3:35 pm

1 stop17h 35m

$981

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Mon 12/15

5:30 pm-3:40 pm

2 stops38h 10m

Graz Thalerhof

Tue 1/6

2:15 pm-10:23 am

2 stops28h 08m

$1,349

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Tue 12/16

1:25 pm-3:40 pm

2 stops18h 15m

Graz Thalerhof

Tue 1/6

2:15 pm-10:23 am

2 stops28h 08m

$1,349

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Tue 12/16

1:25 pm-3:40 pm

2 stops18h 15m

Graz Thalerhof

Tue 1/6

9:50 am-9:59 pm

3 stops20h 09m

$1,391

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Fri 1/30

11:25 pm-11:30 pm

3 stops40h 05m

$434

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Thu 1/29

11:59 pm-1:35 pm

2 stops29h 36m

$539

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Thu 1/29

11:15 am-1:45 pm

3 stops18h 30m

$544

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Fri 1/30

4:20 pm-3:40 pm

1 stop15h 20m

$598

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Mon 12/15

9:42 am-3:40 pm

3 stops45h 58m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 12 results
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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, February is the cheapest month in which you can book a flight from Colorado to Graz (average of $563). Flying from Colorado to Graz in June is currently the most expensive (average of $860). 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.

What is the cheapest time of day to fly from CO to GRZ?

Find hourly flight availability from Colorado to Graz. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

One of the essential ways to save on airfare from Colorado to Graz is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 47% on airfare.

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.

  • How long is the flight from Colorado to Graz?

    Lufthansa can get you from Colorado to Graz in just under 22h 20m. Your travel time can differ by up to . The distance from Colorado to Graz is about 5393 mi.

  • 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, February is the cheapest month in which you can book a flight from Colorado to Graz (average of $563). Flying from Colorado to Graz in June is currently the most expensive (average of $860). 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.

See more FAQs

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$664Average$977FlexibilityNo cancel feeOn-time76%

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