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Colorado

$126+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
feb. 26 — mar. 51
jue. 2/26
jue. 3/5
1 adult, Economy
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Cheap 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 enero 27, 2026.

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.
sáb. 2/286:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
mié. 3/42:28 pm
DEN
-
GRB
1 stop4h 14m
American Airlines
Deal found 1/26$251
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.
sáb. 2/286:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
mar. 3/311:59 pm
DEN
-
GRB
2 stops8h 25m
American Airlines
Deal found 1/26$256
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.
vie. 2/205:28 pm
GRB
-
DEN
1 stop6h 38m
United Airlines
sáb. 2/289:36 am
DEN
-
GRB
1 stop4h 33m
United Airlines
Deal found 1/25$265
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.
vie. 2/206:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
mar. 2/249:30 am
DEN
-
GRB
2 stops9h 12m
American 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.
vie. 3/65:28 pm
GRB
-
DEN
1 stop7h 02m
United Airlines
mar. 3/103:10 pm
DEN
-
GRB
1 stop5h 15m
United 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.
vie. 3/66:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
mar. 3/1011:59 pm
DEN
-
GRB
2 stops8h 28m
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.
sáb. 5/95:18 pm
GRB
-
DEN
1 stop6h 22m
American Airlines
sáb. 5/1610:36 am
DEN
-
GRB
1 stop5h 12m
American Airlines
Deal found 1/25$291
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.
vie. 2/136:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
jue. 2/195:57 pm
DEN
-
GRB
1 stop4h 35m
American Airlines
Deal found 1/26$294
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/136:32 pm
GRB
-
DEN
1 stop5h 05m
American Airlines
lun. 2/1611:59 pm
DEN
-
GRB
2 stops8h 22m
American Airlines
Deal found 1/27$299
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/34:18 pm
GRB
-
DEN
1 stop4h 47m
Delta
mar. 3/106:20 am
DEN
-
GRB
1 stop3h 58m
Delta
Deal found 1/25$300
This Delta deal was found by Cheapflights users on 1/24. 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.
mié. 5/134:00 pm
GRB
-
DEN
1 stop7h 29m
Delta
dom. 5/246:10 am
DEN
-
GRB
1 stop3h 59m
Delta
Deal found 1/24$303
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.
sáb. 2/149:53 am
GRB
-
DEN
2 stops11h 21m
American Airlines
lun. 2/1611:59 pm
DEN
-
GRB
2 stops8h 22m
American Airlines
Deal found 1/26$305

Find 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 enero 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(American Airlines)

One-way from

$126
(American Airlines)

Popular in

October

Cheapest in

July

Average price

$334
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. 16% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 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 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 enero 27, 2026.
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

vie. 2/20

5:28 pm-11:06 pm

1 stop6h 38m

Denver Intl

sáb. 2/28

9:36 am-3:09 pm

1 stop4h 33m

$265

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

sáb. 5/2

5:30 pm-10:14 pm

1 stop5h 44m

Denver Intl

sáb. 5/9

3:20 pm-9:27 pm

1 stop5h 07m

$279

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

sáb. 5/9

5:18 pm-11:59 pm

1 stop7h 41m

Denver Intl

sáb. 5/16

10:36 am-4:48 pm

1 stop5h 12m

$291

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

vie. 2/13

6:32 pm-10:37 pm

1 stop5h 05m

Denver Intl

lun. 2/16

11:59 pm-9:21 am

2 stops8h 22m

$299

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

vie. 2/13

6:32 pm-10:37 pm

1 stop5h 05m

Denver Intl

jue. 2/19

7:00 am-6:01 pm

2 stops10h 01m

$299

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

jue. 5/28

5:25 pm-9:38 pm

1 stop5h 13m

Denver Intl

dom. 5/31

6:10 am-11:09 am

1 stop3h 59m

$303

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

lun. 5/18

5:25 pm-9:38 pm

1 stop5h 13m

Denver Intl

sáb. 5/23

9:00 am-3:32 pm

1 stop5h 32m

$303

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

mié. 6/3

5:25 pm-9:38 pm

1 stop5h 13m

Denver Intl

mar. 6/9

6:10 am-11:09 am

1 stop3h 59m

$303

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

mar. 3/17

5:17 pm-9:28 pm

1 stop5h 11m

Denver Intl

mar. 3/24

6:20 am-11:18 am

1 stop3h 58m

$303

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

vie. 6/5

5:25 pm-9:38 pm

1 stop5h 13m

Denver Intl

sáb. 6/6

6:10 am-11:09 am

1 stop3h 59m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 33 results
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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, July is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $83). Flying from Green Bay to Colorado in March is currently the most expensive (average of $233). 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 enero 27, 2026.

A simple way to save on the total cost of your ticket is to fly from Green Bay to Colorado at noon. If you’re flexible enough to do this you can expect to save up to 62% on your trip compared to booking a flight in the morning.

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 enero 27, 2026.
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
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,119 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,056 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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, 2 users have taken a look at flights from Green Bay Austin-Straubel to Colorado.

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

    For as low as $265, United Airlines can have you in Colorado from Green Bay in 6h 38m. 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 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 American Airlines and Delta, 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.

  • 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, July is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $83). Flying from Green Bay to Colorado in March is currently the most expensive (average of $233). 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

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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 enero 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$196FlexibilityNo cancel feeOn-time62%
DeltaCheapest$179Average$320FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$204Average$328FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$219Average$393FlexibilityNo cancel feeOn-time69%

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