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Green Bay

$126+ Cheap flights from Colorado to Green Bay (GRB)

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRB
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Colorado to Green Bay

Keep the following information in mind while searching for Colorado to Green Bay flight deals. Data was last updated July 30, 2025.

Round-trip from

$149
(Frontier)

One-way from

$89
(Frontier)

Popular in

March

Cheapest in

May

Average price

$246

Good round-trip deal

$135 or less

Good one-way deal

$107 or less
From Colorado to Green Bay Austin-Straubel
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One-way flight from Colorado to Green Bay Austin-Straubel
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Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 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 Colorado to Green Bay Austin-Straubel.
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Price to beat on a one-way flight from Colorado to Green Bay Austin-Straubel.
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Find flight deals from Colorado to Green Bay

Cheapest flights from Colorado to Green Bay
Explore the most affordable flight options available from Colorado to Green Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/113:31 pmDEN - GRB
Nonstop2h 24mFrontier
Fri 8/157:52 pmGRB - DEN
Nonstop2h 47mFrontier
Deal found 7/28$149
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/139:30 amDEN - GRB
1 stop7h 26mAmerican Airlines
Sat 9/204:35 pmGRB - DEN
1 stop6h 41mAmerican Airlines
Deal found 7/30$251
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.
Tue 8/266:15 amDEN - GRB
1 stop4h 11mDelta
Sat 8/304:20 pmGRB - DEN
1 stop4h 35mDelta
Deal found 7/28$285
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/236:00 amDEN - GRB
1 stop5h 44mUnited Airlines
Sat 8/303:45 pmGRB - DEN
1 stop5h 27mUnited Airlines
Deal found 7/30$295
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 12/1012:13 pmCOS - GRB
1 stop4h 24mAmerican Airlines
Sat 12/136:08 amGRB - COS
1 stop6h 22mAmerican Airlines
Deal found 7/28$329
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.
Tue 10/281:38 pmDRO - GRB
2 stops7h 00mUnited Airlines
Sat 11/18:00 amGRB - DRO
2 stops9h 56mUnited Airlines
Deal found 7/28$329
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:11 pmCOS - GRB
1 stop8h 49mDelta
Sun 10/55:34 amGRB - COS
1 stop7h 32mDelta
Deal found 7/29$408
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/1412:05 pmCOS - GRB
1 stop6h 13mUnited Airlines
Mon 8/183:49 pmGRB - COS
2 stops9h 03mUnited Airlines
Deal found 7/30$439
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.
Thu 10/24:30 pmGJT - GRB
2 stops15h 48mAmerican Airlines
Tue 10/79:44 amGRB - GJT
2 stops12h 55mAmerican Airlines
Deal found 7/29$484
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 12/612:47 pmMTJ - GRB
2 stops7h 46mAmerican Airlines
Wed 12/106:08 amGRB - MTJ
2 stops30h 16mAmerican Airlines
Deal found 7/29$634
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 8/134:53 pmASE - GRB
2 stops15h 19mAmerican Airlines
Sun 8/176:02 amGRB - ASE
1 stop30h 44mAmerican Airlines
Deal found 7/28$634
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 8/137:06 pmASE - GRB
2 stops14h 05mUnited Airlines
Sun 8/176:15 amGRB - ASE
2 stops29h 40mUnited Airlines
Deal found 7/28$649

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Green Bay 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 30, 2025.
Use the filters below to find and compare flights from Colorado to Green Bay that are best for you.

Fly from

Colorado

Fly to

Green Bay

Route

Depart

Return

Price

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Mon 8/11

3:31 pm-6:55 pm

Nonstop2h 24m

Green Bay Austin-Straubel

Fri 8/15

7:52 pm-9:39 pm

Nonstop2h 47m

$149

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 9/13

9:30 am-5:56 pm

1 stop7h 26m

Green Bay Austin-Straubel

Sat 9/20

4:35 pm-10:16 pm

1 stop6h 41m

$251

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Tue 8/26

6:15 am-11:26 am

1 stop4h 11m

Green Bay Austin-Straubel

Sat 8/30

4:20 pm-7:55 pm

1 stop4h 35m

$285

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 8/23

2:45 pm-9:43 pm

1 stop5h 58m

Green Bay Austin-Straubel

Sat 8/30

5:30 pm-9:59 pm

1 stop5h 29m

$295

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Wed 12/10

12:13 pm-5:37 pm

1 stop4h 24m

Green Bay Austin-Straubel

Sat 12/13

6:08 am-11:30 am

1 stop6h 22m

$329

DurangoGreen Bay

DRO - GRB

DROGRB

Durango La Plata County

Tue 10/28

1:38 pm-9:38 pm

2 stops7h 00m

Green Bay Austin-Straubel

Sat 11/1

8:00 am-4:56 pm

2 stops9h 56m

$329

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Wed 10/1

1:11 pm-11:00 pm

1 stop8h 49m

Green Bay Austin-Straubel

Sun 10/5

5:34 am-12:06 pm

1 stop7h 32m

$408

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Thu 8/14

12:05 pm-7:18 pm

1 stop6h 13m

Green Bay Austin-Straubel

Mon 8/18

3:49 pm-11:52 pm

2 stops9h 03m

$439

Grand JunctionGreen Bay

GJT - GRB

GJTGRB

Grand Junction Regnl

Thu 10/2

4:30 pm-9:18 am

2 stops15h 48m

Green Bay Austin-Straubel

Tue 10/7

9:44 am-9:39 pm

2 stops12h 55m

$484

MontroseGreen Bay

MTJ - GRB

MTJGRB

Montrose County

Sat 12/6

12:47 pm-9:33 pm

2 stops7h 46m

Green Bay Austin-Straubel

Wed 12/10

6:08 am-11:24 am

2 stops30h 16m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 18 results
1
2

Best time to book a flight from Colorado to Green Bay

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $331). Flying from Colorado to Green Bay in June is currently the most expensive (average of $460). 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 CO to GRB?

Find hourly flight availability from Colorado to Green Bay. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from Colorado to Green Bay, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Green Bay

Get insights into the airlines that provide service to Green Bay. 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 Green Bay. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Colorado to Green Bay to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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
3,237 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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 Colorado to Green Bay. 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 into for flights to Green Bay from Colorado?

    Green Bay Austin-Straubel (GRB), located 5.9 mi from the city center, is the airport you fly into when you book flights from Colorado to Green Bay.

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

    One-way options have recently been found by users for as low as $89 on Frontier. Other airlines that offer cheap prices include Delta from $126 and United Airlines from $135 one-way.

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

    When deciding which route to take from Colorado to Green Bay consider Denver Intl - Green Bay Austin-Straubel, Colorado Springs - Green Bay Austin-Straubel or Grand Junction Regnl - Green Bay Austin-Straubel as they are the most popular.

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

    Looking for the cheapest flight from Colorado to Green Bay? While on average our users pay $164, our data indicates the cheapest price to be $80. The most popular route (Denver Intl - Green Bay Austin-Straubel), is priced around $295.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $331). Flying from Colorado to Green Bay in June is currently the most expensive (average of $460). 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

Traveling to a place near Green Bay?

Book flights to Green Bay if you plan to visit one of these locations
Marinette
Manitowoc

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Alternative routes for Colorado to Green Bay

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

Discover the top 4 airlines that operate flights from Colorado to Green Bay. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$360FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$367FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$457FlexibilityNo cancel feeOn-time69%

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