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$79+ Cheap flights from Green Bay (GRB) to Colorado

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap flight deals from Green Bay to Colorado

Keep the following information in mind while searching for Green Bay to Colorado flight deals. Data was last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$198
(Frontier)

One-way from

$79
(Frontier)

Popular in

March

Cheapest in

May

Average price

$443

Good round-trip deal

$122 or less

Good one-way deal

$79 or less
Provider with most accurate pricing for Green Bay Austin-Straubel-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Denver Intl flights.
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From Green Bay Austin-Straubel to Colorado
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One-way flight from Green Bay Austin-Straubel to Colorado
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Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Green Bay Austin-Straubel to Colorado.
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Price to beat on a one-way flight from Green Bay Austin-Straubel to Colorado.
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Find flight deals from Green Bay to Colorado

Cheapest flights from Green Bay to Colorado
Explore the most affordable flight options available from Green Bay to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Frontier deal was found by Cheapflights users on 3/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:53 pmGRB - DEN
Nonstop2h 47mFrontier
Mon 7/213:31 pmDEN - GRB
Nonstop2h 24mFrontier
Deal found 3/24$188
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/234:35 pmGRB - DEN
1 stop7h 04mAmerican Airlines
Sat 4/267:20 amDEN - GRB
1 stop6h 21mAmerican Airlines
Deal found 3/24$199
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/194:20 pmGRB - DEN
1 stop5h 11mDelta
Sat 4/266:10 amDEN - GRB
1 stop6h 54mDelta
Deal found 3/23$217
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/46:00 amGRB - COS
2 stops12h 52mAmerican Airlines
Tue 7/85:00 amCOS - GRB
2 stops11h 40mAmerican Airlines
Deal found 3/25$335
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/46:20 amGRB - COS
1 stop4h 43mDelta
Tue 7/81:40 pmCOS - GRB
1 stop8h 18mDelta
Deal found 3/25$354
This United deal was found by Cheapflights users on 3/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:45 amGRB - ASE
1 stop5h 44mUnited Airlines
Sat 4/1912:30 pmASE - GRB
1 stop5h 29mUnited Airlines
Deal found 3/24$359
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Fri 4/115:25 pmGRB - COS
2 stops7h 34mUnited Airlines
Sun 4/136:00 amCOS - GRB
2 stops9h 50mUnited Airlines
Deal found 3/25$369
This United Airlines deal was found by Cheapflights users on 3/25. 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 6/145:35 pmGRB - DEN
1 stop6h 55mUnited Airlines
Sat 6/216:00 amDEN - GRB
1 stop14h 23mUnited Airlines
Deal found 3/25$401
This United Airlines deal was found by Cheapflights users on 3/24. 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 3/296:26 amGRB - DRO
2 stops9h 22mUnited Airlines
Wed 4/25:15 amDRO - GRB
2 stops8h 55mUnited Airlines
Deal found 3/24$490
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:22 pmGRB - GJT
2 stops17h 45mAmerican Airlines
Tue 5/135:00 amGJT - GRB
2 stops17h 10mAmerican Airlines
Deal found 3/25$527
This United deal was found by Cheapflights users on 3/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/65:35 pmGRB - GJT
2 stops17h 01mUnited Airlines
Mon 6/97:15 amGJT - GRB
2 stops28h 07mUnited Airlines
Deal found 3/25$598
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:40 pmGRB - ASE
3 stops18h 11mAmerican Airlines
Sat 4/1912:29 pmASE - GRB
3 stops21h 19mAmerican Airlines
Deal found 3/24$854

Cheapflights Fare Finder

Customize your flight search to find flights from Green Bay 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 March 26, 2025.
Use the filters below to find and compare flights from Green Bay to Colorado that are best for you.

Fly from

Green Bay

Fly to

Colorado

Route

Depart

Return

Price

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 7/2

7:53 pm-9:34 pm

Nonstop2h 41m

Denver Intl

Mon 7/7

3:31 pm-6:55 pm

Nonstop2h 24m

$198

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 4/19

11:24 am-3:27 pm

1 stop5h 03m

Denver Intl

Sat 4/26

7:20 am-2:41 pm

1 stop6h 21m

$199

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 4/23

2:35 pm-10:26 pm

1 stop8h 51m

Denver Intl

Sun 4/27

6:10 am-11:38 am

1 stop4h 28m

$238

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Tue 4/29

5:25 pm-11:12 pm

1 stop6h 47m

Denver Intl

Sun 5/4

9:43 am-4:51 pm

1 stop6h 08m

$289

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Fri 7/4

6:00 am-5:52 pm

2 stops12h 52m

Colorado Springs

Tue 7/8

5:00 am-5:40 pm

2 stops11h 40m

$335

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Fri 7/4

6:20 am-10:03 am

1 stop4h 43m

Colorado Springs

Tue 7/8

1:40 pm-10:58 pm

1 stop8h 18m

$354

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Fri 4/11

5:25 pm-11:59 pm

2 stops7h 34m

Colorado Springs

Sun 4/13

6:00 am-4:50 pm

2 stops9h 50m

$369

Green BayGrand Junction

GRB - GJT

GRBGJT

Green Bay Austin-Straubel

Thu 5/8

6:22 pm-11:07 am

2 stops17h 45m

Grand Junction Regnl

Tue 5/13

5:00 am-11:10 pm

2 stops17h 10m

$527

Green BayGrand Junction

GRB - GJT

GRBGJT

Green Bay Austin-Straubel

Fri 6/6

5:35 pm-9:36 am

2 stops17h 01m

Grand Junction Regnl

Mon 6/9

7:15 am-12:22 pm

2 stops28h 07m

$598

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 5/28

7:48 pm-9:33 pm

Nonstop2h 45m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 16 results
1
2

Best time to book a flight from Green Bay to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $197). Flying from Green Bay 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.

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

Find hourly flight availability from Green Bay to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Green Bay to Colorado as you normally would.

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 March 26, 2025.
To help decide which airline to fly from Green Bay to Colorado, see what other customers have to say about Delta, United Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,272 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Green Bay 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 Green Bay to Colorado?

    Most people fly from Green Bay Austin-Straubel (GRB) if they book a flight from Green Bay to Colorado. Green Bay Austin-Straubel is conveniently located just 5.9 mi from Green Bay’s city center.

  • How popular is this Green Bay to Colorado flight route?

    Within the past month, 1 users have taken a look at flights from Green Bay Austin-Straubel to Colorado.

  • What are the cheapest airlines to fly from Green Bay to Colorado one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Green Bay to Colorado for a low price.

  • What are the most popular routes from Green Bay to Colorado?

    While some choose either Green Bay Austin-Straubel - Colorado Springs or Green Bay Austin-Straubel - Grand Junction Regnl, Green Bay Austin-Straubel - Denver Intl is the most popular route from Green Bay to Colorado.

  • What are the cheapest flights from Green Bay to Colorado?

    Looking for the cheapest flight from Green Bay to Colorado? While on average our users pay $145, our data indicates the cheapest price to be $78. The most popular route (Green Bay Austin-Straubel - Denver Intl), is priced around $217.

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

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

  • How can I find direct flights from Green Bay to Colorado?

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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 Green Bay to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $197). Flying from Green Bay 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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Alternative routes for Green Bay to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Green Bay to Colorado

Discover the top 4 airlines that operate flights from Green Bay to Colorado. 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$159FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$357FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$465FlexibilityNo cancel feeOn-time69%
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