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$281+ Cheap flights from Denver (DEN) 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRZ
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Denver to Graz

Cheapest flights from Denver to Graz
Explore the most affordable flight options available from Denver to Graz. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:59 pm
DEN
-
GRZ
2 stops29h 56m
United Airlines
Wed 5/276:00 am
GRZ
-
DEN
1 stop15h 30m
United Airlines
Deal found 1/20$651
This Air Canada deal was found by Cheapflights users on 1/17. 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 stops38h 50m
Air Canada
Deal found 1/17$890
This KAYAK deal was found by Cheapflights users on 1/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/164:05 pm
DEN
-
GRZ
1 stop12h 30m
Lufthansa
Wed 5/2710:25 am
GRZ
-
DEN
1 stop13h 15m
Lufthansa
Deal found 1/18$944

Find flight deals from Denver to Graz

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Graz (GRZ). 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 January 20, 2026.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$651
(United Airlines)

One-way from

$281
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$644
Provider with most accurate pricing for Denver Intl-Graz Thalerhof flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Graz Thalerhof flights.
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From Denver Intl to Graz Thalerhof
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One-way flight from Denver Intl to Graz Thalerhof
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Highest demand for flights based on searches. 15% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 January 20, 2026.
Use the filters below to find and compare flights from Denver to Graz that are best for you.

Fly from

Denver

Fly to

Graz

Route

Depart

Return

Price

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sat 5/16

11:59 pm-1:55 pm

2 stops29h 56m

Graz Thalerhof

Wed 5/27

6:00 am-1:30 pm

1 stop15h 30m

$651

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Wed 2/18

11:15 am-1:15 pm

2 stops18h 00m

Graz Thalerhof

Sun 2/22

9:50 am-4:40 pm

2 stops38h 50m

$890

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sat 5/16

4:05 pm-12:35 pm

1 stop12h 30m

Graz Thalerhof

Wed 5/27

10:25 am-3:40 pm

1 stop13h 15m

$944

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sun 5/17

9:55 am-12:35 pm

2 stops18h 40m

$286

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sun 5/17

3:45 pm-1:55 pm

1 stop14h 10m

$290

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sat 5/16

11:59 pm-1:55 pm

2 stops29h 56m

$290

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sun 5/17

8:20 pm-10:45 am

2 stops30h 25m

$366

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Mon 5/18

8:25 pm-4:10 pm

1 stop11h 45m

$378

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sun 5/17

3:45 pm-6:20 pm

1 stop18h 35m

$389

DenverGraz

DEN - GRZ

DENGRZ

Denver Intl

Sat 5/16

5:40 pm-9:45 am

1 stop32h 05m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

  • Most accurate provider: When it comes to deals on Denver-Graz flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Denver-Graz flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Denver-Graz flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Graz 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-Graz 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 Graz

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

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

Currently, April is the cheapest month in which you can book a flight from Denver to Graz (average of $433). Flying from Denver 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.

Reviews of airlines servicing Graz

Get insights into the airlines that provide service to Graz. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Graz. Reviews last updated January 20, 2026.
Get a feel of what it's like to fly with Lufthansa from Denver to Graz by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,732 reviews

Entertainment

6.4

Food

6.3

Overall

6.8

Crew

7.6

Comfort

6.8

Boarding

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
Lufthansa
6.8
Okay
7,732 reviews
Lufthansa
6.8
Okay
7,732 reviews

Entertainment

6.4

Food

6.3

Overall

6.8

Crew

7.6

Comfort

6.8

Boarding

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.

Related info for your journey

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

  • How long is the flight from Denver to Graz?

    For as low as $890, United Airlines can have you in Graz from Denver in 18h. There are 5393 mi between Denver and Graz. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Graz?

    Currently, April is the cheapest month in which you can book a flight from Denver to Graz (average of $433). Flying from Denver 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.

See more FAQs

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Top airline flying from Denver to Graz

Discover the top airline that operate flights from Denver 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$664Average$977FlexibilityNo cancel feeOn-time76%

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