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Green Bay

$136+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRB
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

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 8/299:30 am
DEN
-
GRB
1 stop4h 41m
American Airlines
Sat 9/57:02 pm
GRB
-
DEN
1 stop5h 57m
American Airlines
Deal found 7/30$271
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.
Sun 9/610:43 am
DEN
-
GRB
2 stops12h 33m
American Airlines
Sat 9/125:43 am
GRB
-
DEN
2 stops11h 16m
American Airlines
Deal found 7/28$282
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.
Wed 10/74:18 pm
DEN
-
GRB
1 stop4h 25m
Delta
Sat 10/1012:29 pm
GRB
-
DEN
1 stop4h 20m
Delta
Deal found 7/28$283
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.
Fri 8/285:44 pm
DEN
-
GRB
1 stop5h 32m
American Airlines
Tue 9/17:02 pm
GRB
-
DEN
1 stop5h 57m
American Airlines
Deal found 7/30$300
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/106:01 pm
DEN
-
GRB
1 stop5h 12m
American Airlines
Mon 9/144:04 pm
GRB
-
DEN
1 stop5h 31m
American Airlines
Deal found 7/31$302
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.
Sat 8/296:00 am
DEN
-
GRB
1 stop4h 22m
Delta
Sat 9/52:00 pm
GRB
-
DEN
1 stop6h 51m
Delta
Deal found 7/29$303
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.
Tue 11/312:24 pm
DEN
-
GRB
1 stop6h 32m
American Airlines
Sat 11/710:02 am
GRB
-
DEN
2 stops10h 20m
American Airlines
Deal found 7/30$307
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 10/312:37 pm
COS
-
GRB
1 stop6h 19m
American Airlines
Sat 10/102:46 pm
GRB
-
COS
2 stops9h 13m
American Airlines
Deal found 7/27$334
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.
Wed 8/267:55 am
COS
-
GRB
1 stop5h 00m
United Airlines
Wed 9/95:05 pm
GRB
-
COS
2 stops7h 50m
United Airlines
Deal found 7/29$379
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.
Thu 9/241:25 pm
COS
-
GRB
1 stop7h 59m
Delta
Mon 9/285:30 am
GRB
-
COS
1 stop7h 44m
Delta
Deal found 7/27$397
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 8/221:42 pm
MTJ
-
GRB
2 stops8h 37m
United Airlines
Tue 8/256:25 am
GRB
-
MTJ
2 stops9h 02m
United Airlines
Deal found 7/30$429
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.
Tue 8/2511:19 am
GJT
-
GRB
2 stops11h 00m
United Airlines
Sat 8/2912:30 pm
GRB
-
GJT
2 stops9h 05m
United Airlines
Deal found 7/30$429

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(American Airlines)

One-way from

$136
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$422
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. 11% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 1, 2026.
Use the filters below to find and compare flights from Colorado to Green Bay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 8/29

6:00 am-11:22 am

1 stop4h 22m

Green Bay Austin-Straubel

Sat 9/5

2:00 pm-7:51 pm

1 stop6h 51m

$303

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 10/17

5:36 pm-11:19 pm

1 stop4h 43m

Green Bay Austin-Straubel

Sat 10/24

6:20 am-12:45 pm

1 stop7h 25m

$332

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Thu 9/10

6:15 am-11:22 am

1 stop4h 07m

Green Bay Austin-Straubel

Sat 9/12

4:16 pm-8:05 pm

1 stop4h 49m

$333

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Fri 8/28

12:23 pm-6:25 pm

1 stop5h 02m

Green Bay Austin-Straubel

Sun 8/30

7:02 pm-11:59 pm

1 stop5h 57m

$341

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Thu 9/3

6:00 am-11:22 am

1 stop4h 22m

Green Bay Austin-Straubel

Sun 9/6

6:15 am-9:59 am

1 stop4h 44m

$343

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 8/29

6:00 am-11:55 am

1 stop4h 55m

Green Bay Austin-Straubel

Tue 9/1

2:31 pm-9:44 pm

1 stop8h 13m

$351

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Wed 8/26

7:55 am-1:55 pm

1 stop5h 00m

Green Bay Austin-Straubel

Wed 9/9

5:05 pm-11:55 pm

2 stops7h 50m

$379

Colorado SpringsGreen Bay

COS - GRB

COSGRB

Colorado Springs

Thu 9/24

1:25 pm-10:24 pm

1 stop7h 59m

Green Bay Austin-Straubel

Mon 9/28

5:30 am-12:14 pm

1 stop7h 44m

$397

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Wed 10/21

5:36 pm-11:19 pm

1 stop4h 43m

Green Bay Austin-Straubel

Sun 10/25

5:30 pm-11:31 pm

1 stop7h 01m

$398
Quickest round-trip

DenverGreen Bay

DEN - GRB

DENGRB

Denver Intl

Sat 8/8

6:00 am-11:22 am

1 stop4h 22m

Green Bay Austin-Straubel

Sat 8/15

12:03 pm-3:23 pm

1 stop4h 20m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 31 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $318). Flying from Colorado to Green Bay in July is currently the most expensive (average of $538). 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.

How much does it cost to fly round-trip from Colorado to Green Bay?

Airfare is below average for this route at the moment.
Colorado to Green Bay flights typically cost between $290 and $588 in August.
The cheapest round-trip price found within the last 5 days was $271 on American Airlines (Aug 29-Sep 5).

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 4h 22m. Delta provides one of the quickest options available for as low as $303. Airlines will cover a distance of 903 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 United Airlines from $125 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 Durango La Plata 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, April is the cheapest month in which you can book a flight from Colorado to Green Bay (average of $318). Flying from Colorado to Green Bay in July is currently the most expensive (average of $538). 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 Colorado to Green Bay

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Colorado to Green Bay

Discover the top 3 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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$250Average$354FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$260Average$439FlexibilityNo cancel feeOn-time69%

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