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$831+ Cheap flights from Graz (GRZ) to Colorado

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
GRZ — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Graz to Colorado

Keep the following information in mind while searching for Graz to Colorado flight deals. Data was last updated April 29, 2025.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$831
(Booking.com)

Popular in

September

Cheapest in

February

Average price

$859
Provider with most accurate pricing for Graz Thalerhof-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Graz Thalerhof-Denver Intl flights.
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From Graz Thalerhof to Colorado
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Graz to Colorado

Cheapest flights from Graz to Colorado
Explore the most affordable flight options available from Graz to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/149:55 amGRZ - DEN
2 stops40h 25mAir Canada
Sun 5/185:40 pmDEN - GRZ
2 stops34h 55mAir Canada
Deal found 4/29$831
This Gotogate deal was found by Cheapflights users on 4/29. 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.
Wed 5/149:55 amGRZ - DEN
2 stops40h 25mMultiple Airlines
Sun 5/185:50 pmDEN - GRZ
1 stop32h 05mMultiple Airlines
Deal found 4/29$834
This SWISS deal was found by Cheapflights users on 4/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:45 pmGRZ - DEN
2 stops32h 10mSWISS
Sun 6/155:50 pmDEN - GRZ
1 stop32h 05mSWISS
Deal found 4/29$862
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:00 amGRZ - DEN
2 stops26h 15mLufthansa
Fri 6/274:25 pmDEN - GRZ
2 stops33h 30mLufthansa
Deal found 4/29$877

Cheapflights Fare Finder

Customize your flight search to find flights from Graz to Colorado 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 April 29, 2025.
Use the filters below to find and compare flights from Graz to Colorado that are best for you.

Fly from

Graz

Fly to

Colorado

Route

Depart

Return

Price

GrazDenver

GRZ - DEN

GRZDEN

Graz Thalerhof

Wed 5/14

9:55 am-6:20 pm

2 stops40h 25m

Denver Intl

Sun 5/18

5:40 pm-12:35 pm

2 stops34h 55m

$831

GrazDenver

GRZ - DEN

GRZDEN

Graz Thalerhof

Wed 5/14

9:55 am-6:20 pm

2 stops40h 25m

Denver Intl

Sun 5/18

5:50 pm-9:55 am

1 stop32h 05m

$834

GrazDenver

GRZ - DEN

GRZDEN

Graz Thalerhof

Thu 5/15

7:45 pm-7:55 pm

2 stops32h 10m

Denver Intl

Sun 6/15

5:50 pm-9:55 am

1 stop32h 05m

$862

GrazDenver

GRZ - DEN

GRZDEN

Graz Thalerhof

Sat 5/31

6:00 am-12:15 am

2 stops26h 15m

Denver Intl

Fri 6/27

4:25 pm-9:55 am

2 stops33h 30m

$877

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Graz to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Graz to Colorado (average of $197). Flying from Graz to Colorado in March is currently the most expensive (average of $278). 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.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated April 29, 2025.
SWISS
7.5
Good
1,588 reviews

Comfort

7.4

Food

7.0

Entertainment

6.7

Crew

8.2

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2024

BLQ - ZRH

We had to wait more than an hour at check in because they said I requested an upgrade to business class (which I didn’t) and weren’t able to cancel it. They finally assigned us regular seats but I got stopped again at the gate because of the same issue. We barely made it on time. Poor management on the connecting flight (a 10 hour flight) where they let two young mothers sit together near us (they were sitting in separate areas when we boarded), who were talking endlessly, both with screaming babies, and no help from the crew to make them aware of other people around them.
SWISS
7.5
Good
1,588 reviews
SWISS
7.5
Good
1,588 reviews

Comfort

7.4

Food

7.0

Entertainment

6.7

Crew

8.2

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2024

BLQ - ZRH

We had to wait more than an hour at check in because they said I requested an upgrade to business class (which I didn’t) and weren’t able to cancel it. They finally assigned us regular seats but I got stopped again at the gate because of the same issue. We barely made it on time. Poor management on the connecting flight (a 10 hour flight) where they let two young mothers sit together near us (they were sitting in separate areas when we boarded), who were talking endlessly, both with screaming babies, and no help from the crew to make them aware of other people around them.
Air Canada
7.0
Good
9,242 reviews
SWISS
7.5
Good
1,588 reviews

Comfort

7.4

Food

7.0

Entertainment

6.7

Crew

8.2

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2024

BLQ - ZRH

We had to wait more than an hour at check in because they said I requested an upgrade to business class (which I didn’t) and weren’t able to cancel it. They finally assigned us regular seats but I got stopped again at the gate because of the same issue. We barely made it on time. Poor management on the connecting flight (a 10 hour flight) where they let two young mothers sit together near us (they were sitting in separate areas when we boarded), who were talking endlessly, both with screaming babies, and no help from the crew to make them aware of other people around them.
Lufthansa
6.7
Okay
7,042 reviews
SWISS
7.5
Good
1,588 reviews

Comfort

7.4

Food

7.0

Entertainment

6.7

Crew

8.2

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2024

BLQ - ZRH

We had to wait more than an hour at check in because they said I requested an upgrade to business class (which I didn’t) and weren’t able to cancel it. They finally assigned us regular seats but I got stopped again at the gate because of the same issue. We barely made it on time. Poor management on the connecting flight (a 10 hour flight) where they let two young mothers sit together near us (they were sitting in separate areas when we boarded), who were talking endlessly, both with screaming babies, and no help from the crew to make them aware of other people around them.

Related info for your journey

Find useful and relevant information for your journey from Graz to Colorado. 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 from for flights from Graz to Colorado?

    If you book a flight to Colorado from Graz, you will be flying from Thalerhof, which is the city’s only airport. Graz Thalerhof (GRZ) is located 5.2 mi from the center of Graz.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Graz to Colorado (average of $197). Flying from Graz to Colorado in March is currently the most expensive (average of $278). 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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