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Green Bay

$219+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRB
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This American Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 2/2412:30 pm
COS
-
GRB
1 stop6h 12m
American Airlines
Tue 3/36:01 am
GRB
-
COS
1 stop6h 59m
American Airlines
Deal found 1/25$259
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 2/245:59 am
COS
-
GRB
2 stops8h 10m
United Airlines
Tue 3/33:44 pm
GRB
-
COS
2 stops7h 18m
United Airlines
Deal found 1/25$270
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/1011:00 am
GJT
-
GRB
2 stops9h 31m
United Airlines
Sat 2/143:44 pm
GRB
-
GJT
2 stops7h 37m
United Airlines
Deal found 1/26$270
This American Airlines deal was found by Cheapflights users on 1/26. 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 3/55:57 pm
DEN
-
GRB
1 stop4h 35m
American Airlines
Mon 3/96:38 pm
GRB
-
DEN
1 stop4h 59m
American Airlines
Deal found 1/26$279
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/207:00 am
DEN
-
GRB
2 stops10h 01m
American Airlines
Mon 2/236:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
Deal found 1/26$284
This American Airlines deal was found by Cheapflights users on 1/25. 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.
Sat 4/2511:46 am
DEN
-
GRB
2 stops8h 53m
American Airlines
Sat 5/27:48 am
GRB
-
DEN
2 stops9h 30m
American Airlines
Deal found 1/25$290
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Wed 2/1111:15 am
DEN
-
GRB
1 stop4h 32m
United Airlines
Mon 2/165:28 pm
GRB
-
DEN
1 stop6h 38m
United Airlines
Deal found 1/25$294
This American Airlines deal was found by Cheapflights users on 1/25. 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.
Wed 2/116:00 am
DEN
-
GRB
2 stops9h 23m
American Airlines
Mon 2/166:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
Deal found 1/25$299
This Delta deal was found by Cheapflights users on 1/27. 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.
Fri 3/276:20 am
DEN
-
GRB
1 stop3h 58m
Delta
Sat 4/411:07 am
GRB
-
DEN
1 stop7h 10m
Delta
Deal found 1/27$303
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/107:50 am
DEN
-
GRB
1 stop6h 17m
United Airlines
Sat 2/143:05 pm
GRB
-
DEN
1 stop5h 43m
United Airlines
Deal found 1/26$309
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/109:01 am
DEN
-
GRB
2 stops12h 13m
American Airlines
Sat 2/146:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
Deal found 1/26$314
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 2/111:25 pm
COS
-
GRB
2 stops7h 06m
United Airlines
Sun 2/153:05 pm
GRB
-
COS
2 stops9h 40m
United Airlines
Deal found 1/27$320

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(American Airlines)

One-way from

$219
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$399
Provider with most accurate pricing for Denver Intl-Green Bay Austin-Straubel flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Green Bay Austin-Straubel flights.
Search Deals
From Colorado to Green Bay Austin-Straubel
Search Deals
One-way flight from Colorado to Green Bay Austin-Straubel
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Tue 2/24

12:30 pm-7:42 pm

1 stop6h 12m

Green Bay Austin-Straubel

Tue 3/3

6:01 am-12:00 pm

1 stop6h 59m

$259

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Tue 2/24

5:59 am-3:09 pm

2 stops8h 10m

Green Bay Austin-Straubel

Tue 3/3

3:44 pm-10:02 pm

2 stops7h 18m

$270

Grand JunctionGreen Bay

GJT - GRB

GJTGRB

Grand Junction Regnl

Tue 2/10

11:00 am-9:31 pm

2 stops9h 31m

Green Bay Austin-Straubel

Sat 2/14

3:44 pm-10:21 pm

2 stops7h 37m

$270

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Thu 2/26

2:28 pm-7:42 pm

1 stop4h 14m

Green Bay Austin-Straubel

Thu 3/5

6:32 pm-10:37 pm

1 stop5h 05m

$279

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 4/25

6:00 am-11:59 am

1 stop4h 59m

Green Bay Austin-Straubel

Sat 5/2

3:48 pm-7:40 pm

1 stop4h 52m

$279

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Thu 3/5

5:57 pm-11:32 pm

1 stop4h 35m

Green Bay Austin-Straubel

Mon 3/9

6:38 pm-10:37 pm

1 stop4h 59m

$279

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Fri 4/10

6:00 am-11:59 am

1 stop4h 59m

Green Bay Austin-Straubel

Mon 4/13

3:47 pm-10:05 pm

1 stop7h 18m

$279

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Fri 4/17

5:44 pm-11:34 pm

1 stop4h 50m

Green Bay Austin-Straubel

Tue 4/21

9:46 am-4:19 pm

2 stops7h 33m

$284

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Fri 2/20

7:00 am-6:01 pm

2 stops10h 01m

Green Bay Austin-Straubel

Mon 2/23

6:32 pm-10:37 pm

1 stop5h 05m

$284

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 4/25

11:46 am-9:39 pm

2 stops8h 53m

Green Bay Austin-Straubel

Sat 5/2

7:48 am-4:18 pm

2 stops9h 30m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 37 results
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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, July is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $64). Flying from Colorado to Green Bay in January is currently the most expensive (average of $236). 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.

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.

  • How long is the flight from Colorado to Green Bay?

    A quick flight from Colorado to Green Bay can take about 6h 12m. American Airlines provides one of the quickest options available for as low as $259. Airlines will cover a distance of 938 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $79 on Frontier. Other airlines that offer cheap prices include American Airlines from $82 and Delta from $108 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, Grand Junction Regnl - Green Bay Austin-Straubel or Montrose County - Green Bay Austin-Straubel as they are the most popular.

  • 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, July is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $64). Flying from Colorado to Green Bay in January is currently the most expensive (average of $236). 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
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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$125Average$369FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$250Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$391FlexibilityNo cancel feeOn-time69%

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