HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$86+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Green Bay to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$172
(Cheapflightsfares)

One-way from

$86
(Cheapflightsfares)

Popular in

March

Cheapest in

May

Average price

$373

Good round-trip deal

$196 or less

Good one-way deal

$95 or less
Provider with most accurate pricing for Green Bay Austin-Straubel-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Denver Intl flights.
Search Deals
From Green Bay Austin-Straubel to Colorado
Search Deals
One-way flight from Green Bay Austin-Straubel to Colorado
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Green Bay Austin-Straubel to Colorado.
Search Deals
Price to beat on a one-way flight from Green Bay Austin-Straubel to Colorado.
Search Deals

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 April 29, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/167:59 pmGRB - DEN
Nonstop2h 45mFrontier
Mon 5/193:35 pmDEN - GRB
Nonstop2h 22mFrontier
Deal found 4/29$172
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:13 amGRB - DEN
1 stop7h 05mDelta
Sat 7/121:52 pmDEN - GRB
1 stop7h 11mDelta
Deal found 4/29$234
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:19 amGRB - DEN
2 stops10h 25mAmerican Airlines
Sat 9/1312:20 pmDEN - GRB
1 stop4h 20mAmerican Airlines
Deal found 4/29$256
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:05 amGRB - COS
2 stops7h 46mUnited Airlines
Sat 6/215:30 amCOS - GRB
2 stops10h 23mUnited Airlines
Deal found 4/29$331
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/315:23 pmGRB - DEN
1 stop6h 59mUnited Airlines
Sun 8/36:00 amDEN - GRB
1 stop5h 23mUnited Airlines
Deal found 4/29$388
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/176:00 amGRB - COS
1 stop6h 31mAmerican Airlines
Sat 6/216:01 amCOS - GRB
2 stops16h 25mAmerican Airlines
Deal found 4/29$408
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/65:53 pmGRB - GJT
2 stops17h 02mAmerican Airlines
Mon 6/94:33 pmGJT - GRB
2 stops15h 50mAmerican Airlines
Deal found 4/29$468
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:10 pmGRB - COS
2 stops9h 47mDelta
Mon 6/1610:57 amCOS - GRB
2 stops8h 39mDelta
Deal found 4/29$548

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 April 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 5/16

7:59 pm-9:44 pm

Nonstop2h 45m

Denver Intl

Mon 5/19

3:35 pm-6:57 pm

Nonstop2h 22m

$172

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Fri 7/4

11:13 am-5:18 pm

1 stop7h 05m

Denver Intl

Sat 7/12

1:52 pm-10:03 pm

1 stop7h 11m

$234

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 9/6

6:19 am-3:44 pm

2 stops10h 25m

Denver Intl

Sat 9/13

12:20 pm-5:40 pm

1 stop4h 20m

$256

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Tue 6/17

8:05 am-2:51 pm

2 stops7h 46m

Colorado Springs

Sat 6/21

5:30 am-4:53 pm

2 stops10h 23m

$331

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Thu 7/31

5:23 pm-11:22 pm

1 stop6h 59m

Denver Intl

Sun 8/3

6:00 am-12:23 pm

1 stop5h 23m

$388

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Tue 6/17

6:00 am-11:31 am

1 stop6h 31m

Colorado Springs

Sat 6/21

6:01 am-11:26 pm

2 stops16h 25m

$408

Green BayGrand Junction

GRB - GJT

GRBGJT

Green Bay Austin-Straubel

Fri 6/6

5:53 pm-9:55 am

2 stops17h 02m

Grand Junction Regnl

Mon 6/9

4:33 pm-9:23 am

2 stops15h 50m

$468

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Fri 6/13

12:10 pm-8:57 pm

2 stops9h 47m

Colorado Springs

Mon 6/16

10:57 am-8:36 pm

2 stops8h 39m

$548

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Mon 5/19

7:47 pm-9:32 pm

Nonstop2h 45m

$86

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Tue 5/20

5:30 pm-10:00 pm

1 stop5h 30m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April 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.

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.
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
7,936 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,936 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
3,287 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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 $86. However, be on the lookout for offers from American Airlines and United 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 - 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 $147, our data indicates the cheapest price to be $88. The most popular route (Green Bay Austin-Straubel - Denver Intl), is priced around $172.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Green Bay to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to LaGuardia flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Seattle flights
O'Hare Intl to Newark flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Denver flights
O'Hare Intl to Los Angeles flights
Minneapolis to Dallas/Fort Worth flights
O'Hare Intl to Orlando flights
O'Hare Intl to Miami flights
Minneapolis to Seattle flights
O'Hare Intl to Fort Lauderdale flights
Minneapolis to Las Vegas flights
O'Hare Intl to San Diego flights
Minneapolis to Denver flights
O'Hare Intl to Boston flights
O'Hare Intl to Tampa flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Atlanta flights
O'Hare Intl to Honolulu flights
O'Hare Intl to Hobby flights
Minneapolis to LaGuardia flights
Minneapolis to Sky Harbor Intl flights
O'Hare Intl to San Francisco flights
O'Hare Intl to New Orleans flights
O'Hare Intl to George Bush Intcntl flights
Minneapolis to John F Kennedy Intl flights
O'Hare Intl to Ontario flights
O'Hare Intl to Austin flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Nashville flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Baltimore flights
O'Hare Intl to Portland flights
O'Hare Intl to Santa Ana flights
Milwaukee to Seattle flights
Minneapolis to Orlando flights
Minneapolis to Newark flights
O'Hare Intl to Charlotte flights
Milwaukee to Denver flights
O'Hare Intl to Burbank flights
Minneapolis to Boston flights
O'Hare Intl to Savannah flights
Minneapolis to Los Angeles flights
O'Hare Intl to Charleston flights
O'Hare Intl to Love Field flights
Minneapolis to Atlanta flights
O'Hare Intl to Salt Lake City flights

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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$180FlexibilityNo cancel feeOn-time62%
DeltaCheapest$217Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$359FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$471FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.