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Colorado

$78+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$142
(Cheapflightsfares)

One-way from

$78
(Cheapflightsfares)

Popular in

March

Cheapest in

June

Average price

$218

Good round-trip deal

$149 or less

Good one-way deal

$105 or less
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. 16% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:52 pmGRB - DEN
Nonstop2h 47mFrontier
Mon 8/183:31 pmDEN - GRB
Nonstop2h 24mFrontier
Deal found 7/27$142
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/303:02 pmGRB - DEN
1 stop6h 20mAmerican Airlines
Wed 9/39:47 amDEN - GRB
1 stop7h 09mAmerican Airlines
Deal found 7/29$234
This Delta deal was found by Cheapflights users on 7/28. 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 11/84:16 pmGRB - DEN
1 stop4h 14mDelta
Sat 11/152:20 pmDEN - GRB
1 stop6h 13mDelta
Deal found 7/28$251
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:51 pmGRB - DEN
1 stop5h 13mUnited Airlines
Tue 11/184:06 pmDEN - GRB
1 stop4h 32mUnited Airlines
Deal found 7/29$325
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 10/189:44 amGRB - ASE
2 stops10h 15mAmerican Airlines
Fri 10/248:00 amASE - GRB
2 stops10h 38mAmerican Airlines
Deal found 7/27$375
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 10/189:44 amGRB - DRO
2 stops12h 10mAmerican Airlines
Fri 10/248:10 amDRO - GRB
2 stops10h 28mAmerican Airlines
Deal found 7/27$379
This American Airlines deal was found by Cheapflights users on 7/28. 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 10/86:00 amGRB - GJT
2 stops15h 27mAmerican Airlines
Wed 10/154:44 pmGJT - GRB
2 stops15h 30mAmerican Airlines
Deal found 7/28$438
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/306:00 amGRB - COS
1 stop6h 51mAmerican Airlines
Sat 10/116:02 amCOS - GRB
2 stops16h 28mAmerican Airlines
Deal found 7/28$448
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 10/15:25 pmGRB - COS
1 stop5h 16mUnited Airlines
Sat 10/116:00 amCOS - GRB
1 stop27h 05mUnited Airlines
Deal found 7/28$527
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/61:20 pmGRB - ASE
1 stop23h 18mUnited Airlines
Wed 12/109:00 amASE - GRB
1 stop26h 18mUnited Airlines
Deal found 7/27$544
This Delta deal was found by Cheapflights users on 7/27. 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.
Tue 10/75:30 amGRB - ASE
1 stop6h 59mDelta
Sat 10/117:21 amASE - GRB
2 stops13h 03mDelta
Deal found 7/27$694
This United Airlines deal was found by Cheapflights users on 7/28. 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 12/265:22 pmGRB - DRO
2 stops16h 58mUnited Airlines
Tue 12/3011:30 amDRO - GRB
2 stops9h 06mUnited Airlines
Deal found 7/28$724

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 July 29, 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

Fri 8/15

7:52 pm-9:39 pm

Nonstop2h 47m

Denver Intl

Mon 8/18

3:31 pm-6:55 pm

Nonstop2h 24m

$142

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 8/30

3:02 pm-8:22 pm

1 stop6h 20m

Denver Intl

Wed 9/3

9:47 am-5:56 pm

1 stop7h 09m

$234

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 11/8

4:16 pm-7:30 pm

1 stop4h 14m

Denver Intl

Sat 11/15

2:20 pm-9:33 pm

1 stop6h 13m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Fri 11/14

3:51 pm-8:04 pm

1 stop5h 13m

Denver Intl

Tue 11/18

4:06 pm-9:38 pm

1 stop4h 32m

$325

Green BayAspen

GRB - ASE

GRBASE

Green Bay Austin-Straubel

Sat 10/18

9:44 am-6:59 pm

2 stops10h 15m

Aspen Pitkin County

Fri 10/24

8:00 am-7:38 pm

2 stops10h 38m

$375

Green BayDurango

GRB - DRO

GRBDRO

Green Bay Austin-Straubel

Sat 10/18

9:44 am-8:54 pm

2 stops12h 10m

Durango La Plata County

Fri 10/24

8:10 am-7:38 pm

2 stops10h 28m

$379

Green BayGrand Junction

GRB - GJT

GRBGJT

Green Bay Austin-Straubel

Wed 10/8

6:00 am-8:27 pm

2 stops15h 27m

Grand Junction Regnl

Wed 10/15

4:44 pm-9:14 am

2 stops15h 30m

$438

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Tue 9/30

6:00 am-11:51 am

1 stop6h 51m

Colorado Springs

Sat 10/11

6:02 am-11:30 pm

2 stops16h 28m

$448

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Wed 10/1

5:25 pm-9:41 pm

1 stop5h 16m

Colorado Springs

Sat 10/11

6:00 am-10:05 am

1 stop27h 05m

$527

Green BayAspen

GRB - ASE

GRBASE

Green Bay Austin-Straubel

Sat 12/6

1:20 pm-11:38 am

1 stop23h 18m

Aspen Pitkin County

Wed 12/10

9:00 am-12:18 pm

1 stop26h 18m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 24 results
1
2
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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 July 29, 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.

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 July 29, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Green Bay to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,238 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $78. However, be on the lookout for offers from Delta and American Airlines, 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 - Grand Junction Regnl or Green Bay Austin-Straubel - Aspen Pitkin County, 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 $152, our data indicates the cheapest price to be $80. The most popular route (Green Bay Austin-Straubel - Denver Intl), is priced around $152.

  • 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$217Average$367FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$440FlexibilityNo cancel feeOn-time69%

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