What airlines fly to Colorado?

United Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Colorado from Green Bay according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 4 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Green Bay Austin-Straubel to Colorado?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Green Bay Austin-Straubel to Colorado

When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Colorado?

Prices for flights from Green Bay Austin-Straubel Airport to Colorado are updated daily.

How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to Colorado?

There are 3 operators available for flights from Green Bay Austin-Straubel Airport to Colorado as of August 2026.

How old do you have to be to fly from Green Bay Austin-Straubel Airport to Colorado?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$271 Cheap Flights from Green Bay to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Green Bay to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:28 am - 5:46 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

7h 18m1 stop Dallas/Fort Worth

12:17 pm - 6:17 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

5h 00m1 stop Chicago O'Hare Intl

$271American Airlines

Sat, Oct 17 - Sat, Oct 24

5:55 pm - 10:44 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

5h 49m1 stop Chicago O'Hare Intl

3:12 pm - 9:13 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

5h 01m1 stop Chicago O'Hare Intl

$271United Airlines

Wed, Nov 25 - Wed, Dec 2

6:15 am - 10:03 amGRB Green Bay Austin-Straubel-DEN Denver Intl

4h 48m1 stop Minneapolis St Paul

6:15 am - 11:22 amDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 07m1 stop Minneapolis St Paul

$271Delta

Thu, Sep 10 - Sat, Sep 12

5:55 pm - 11:31 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

6h 36m1 stop Chicago O'Hare Intl

4:48 pm - 10:38 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 50m1 stop Chicago O'Hare Intl

$271United Airlines

Sat, Nov 7 - Sat, Nov 14

10:02 am - 7:53 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

10h 51m2 stops Chicago O'Hare Intl Dallas/Fort Worth

12:24 pm - 7:59 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

6h 35m1 stop Chicago O'Hare Intl

$276American Airlines

Sat, Nov 7 - Sat, Nov 14

11:28 am - 6:58 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

8h 30m1 stop Dallas/Fort Worth

9:03 am - 6:17 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

8h 14m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$276American Airlines

Sat, Oct 17 - Sat, Oct 24

5:50 am - 5:40 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

12h 50m2 stops Chicago O'Hare Intl Dallas/Fort Worth

7:33 am - 7:59 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

11h 26m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$281American Airlines

Sat, Nov 7 - Sat, Nov 14

4:51 pm - 8:06 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

4h 15m1 stop Minneapolis St Paul

4:18 pm - 9:43 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 25m1 stop Minneapolis St Paul

$300Delta

Fri, Oct 16 - Tue, Oct 20

6:15 am - 12:08 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

6h 53m1 stop Minneapolis St Paul

6:15 am - 11:22 amDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 07m1 stop Minneapolis St Paul

$300Delta

Wed, Sep 30 - Sun, Oct 4

5:05 pm - 10:13 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

6h 08m1 stop Chicago O'Hare Intl

4:40 pm - 11:19 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

5h 39m1 stop Chicago O'Hare Intl

$300United Airlines

Fri, Sep 11 - Sat, Sep 19

Cheap last minute flights

Enter your travel dates to find the best prices.

7:02 pm - 11:59 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

5h 57m1 stop Chicago O'Hare Intl

12:29 pm - 7:56 pmDEN Denver Intl-GRB Green Bay Austin-Straubel

6h 27m1 stop Chicago O'Hare Intl

$384American Airlines

Fri, Sep 4 - Sat, Sep 19

7:02 pm - 11:59 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

5h 57m1 stop Chicago O'Hare Intl

1:17 pm - 12:13 amDEN Denver Intl-GRB Green Bay Austin-Straubel

9h 56m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$389American Airlines

Fri, Sep 4 - Sat, Sep 19

12:26 pm - 4:53 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

5h 27m1 stop Chicago O'Hare Intl

1:17 pm - 12:13 amDEN Denver Intl-GRB Green Bay Austin-Straubel

9h 56m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$389American Airlines

Fri, Sep 4 - Sat, Sep 19

12:26 pm - 4:53 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

5h 27m1 stop Chicago O'Hare Intl

5:44 pm - 12:16 amDEN Denver Intl-GRB Green Bay Austin-Straubel

5h 32m1 stop Chicago O'Hare Intl

$398American Airlines

Thu, Sep 3 - Sat, Sep 5

12:30 pm - 8:35 pmGRB Green Bay Austin-Straubel-GJT Grand Junction Regnl

9h 05m2 stops Chicago O'Hare Intl Denver Intl

1:40 pm - 11:19 pmGJT Grand Junction Regnl-GRB Green Bay Austin-Straubel

8h 39m2 stops Denver Intl Chicago O'Hare Intl

$435United Airlines

Wed, Sep 2 - Thu, Sep 10

6:15 am - 12:08 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

6h 53m1 stop Minneapolis St Paul

6:00 am - 11:22 amDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 22m1 stop Minneapolis St Paul

$439Delta

Fri, Sep 4 - Sun, Sep 6

4:13 pm - 7:51 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

4h 38m1 stop Minneapolis St Paul

6:00 am - 11:15 amDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 15m1 stop Minneapolis St Paul

$459Delta

Fri, Sep 4 - Mon, Sep 7

6:15 am - 12:08 pmGRB Green Bay Austin-Straubel-DEN Denver Intl

6h 53m1 stop Minneapolis St Paul

6:00 am - 11:15 amDEN Denver Intl-GRB Green Bay Austin-Straubel

4h 15m1 stop Minneapolis St Paul

$499Delta

Fri, Sep 4 - Mon, Sep 7

11:45 am - 10:00 pmGRB Green Bay Austin-Straubel-DRO Durango La Plata County

11h 15m2 stops Chicago O'Hare Intl Denver Intl

11:18 am - 11:19 pmDRO Durango La Plata County-GRB Green Bay Austin-Straubel

11h 01m2 stops Denver Intl Chicago O'Hare Intl

$557United Airlines

Wed, Sep 2 - Sat, Sep 5

11:45 am - 10:00 pmGRB Green Bay Austin-Straubel-DRO Durango La Plata County

11h 15m2 stops Chicago O'Hare Intl Denver Intl

11:18 am - 11:19 pmDRO Durango La Plata County-GRB Green Bay Austin-Straubel

11h 01m2 stops Denver Intl Chicago O'Hare Intl

$593United Airlines

Wed, Sep 2 - Sat, Sep 5

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Delta flights from Green Bay to Colorado

Our best Delta deals on Green Bay to Colorado flight tickets

Delta

Sep 10

GRB6:15 amGreen Bay Austin-Straubel

4h 48m

1 stop

DEN10:03 amDenver Intl

Sep 12

DEN6:15 amDenver Intl

4h 07m

1 stop

GRB11:22 amGreen Bay Austin-Straubel

$271

Delta

Sep 6

GRB6:15 amGreen Bay Austin-Straubel

6h 53m

1 stop

DEN12:08 pmDenver Intl

Sep 12

DEN6:15 amDenver Intl

4h 07m

1 stop

GRB11:22 amGreen Bay Austin-Straubel

$314

Delta

Sep 6

GRB6:15 amGreen Bay Austin-Straubel

4h 44m

1 stop

DEN9:59 amDenver Intl

Sep 11

DEN6:15 amDenver Intl

4h 07m

1 stop

GRB11:22 amGreen Bay Austin-Straubel

$325

American Airlines flights from Green Bay to Colorado

Our best American Airlines deals on Green Bay to Colorado flight tickets

American Airlines

Oct 17

GRB11:28 amGreen Bay Austin-Straubel

8h 30m

1 stop

DEN6:58 pmDenver Intl

Oct 24

DEN9:03 amDenver Intl

8h 14m

2 stops

GRB6:17 pmGreen Bay Austin-Straubel

$276

American Airlines

Nov 7

GRB5:50 amGreen Bay Austin-Straubel

12h 50m

2 stops

DEN5:40 pmDenver Intl

Nov 14

DEN7:33 amDenver Intl

11h 26m

2 stops

GRB7:59 pmGreen Bay Austin-Straubel

$281

American Airlines

Oct 15

GRB8:04 pmGreen Bay Austin-Straubel

5h 32m

1 stop

DEN12:36 amDenver Intl

Oct 20

DEN6:09 pmDenver Intl

5h 03m

1 stop

GRB12:12 amGreen Bay Austin-Straubel

$300

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Sat 10/17

11:28 am-5:46 pm

1 stop7h 18m

Denver Intl

Sat 10/24

12:17 pm-6:17 pm

1 stop5h 00m

$271

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Wed 11/25

5:55 pm-10:44 pm

1 stop5h 49m

Denver Intl

Wed 12/2

3:12 pm-9:13 pm

1 stop5h 01m

$271

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Thu 9/10

6:15 am-10:03 am

1 stop4h 48m

Denver Intl

Sat 9/12

6:15 am-11:22 am

1 stop4h 07m

$271

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Sat 11/7

5:55 pm-11:31 pm

1 stop6h 36m

Denver Intl

Sat 11/14

4:48 pm-10:38 pm

1 stop4h 50m

$271

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Sat 11/7

10:02 am-7:53 pm

2 stops10h 51m

Denver Intl

Sat 11/14

12:24 pm-7:59 pm

1 stop6h 35m

$276

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Sat 10/17

11:28 am-6:58 pm

1 stop8h 30m

Denver Intl

Sat 10/24

9:03 am-6:17 pm

2 stops8h 14m

$276

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Sat 11/7

5:50 am-5:40 pm

2 stops12h 50m

Denver Intl

Sat 11/14

7:33 am-7:59 pm

2 stops11h 26m

$281

Quickest round-trip

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Fri 10/16

4:51 pm-8:06 pm

1 stop4h 15m

Denver Intl

Tue 10/20

4:18 pm-9:43 pm

1 stop4h 25m

$300

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Wed 9/30

6:15 am-12:08 pm

1 stop6h 53m

Denver Intl

Sun 10/4

6:15 am-11:22 am

1 stop4h 07m

$300

Green BayDenver

GRB Green Bay Austin-Straubel - DEN Denver Intl

GRBDEN

Green Bay Austin-Straubel

Fri 9/11

5:05 pm-10:13 pm

1 stop6h 08m

Denver Intl

Sat 9/19

4:40 pm-11:19 pm

1 stop5h 39m

$300

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Green Bay to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Colorado?

The month of March is, on average, the cheapest month to fly to Colorado from Green Bay, with most prices found around $309. The month of December is another great option to travel to Colorado, with average flight prices from Green Bay averaging around $313.

What is the cheapest Green Bay Austin-Straubel to Colorado flight route?

Fly from Green Bay Austin-Straubel to Denver Intl for the best Green Bay Austin-Straubel - Colorado flight prices

What cabin class options are available on Green Bay to Colorado flights?

There is only 1 cabin class available to choose from on Green Bay to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Green Bay to Colorado flights?

No. A direct flight is the cheapest option for a flight between Green Bay to Colorado.

Cheap Green Bay to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Green Bay to Colorado

Best Price Found	$309
Fastest flight time	4h 27m
Direct flights	None

The best one-way flight to Colorado from Green Bay in the past 72 hours is $309. The best round-trip flight deal from Green Bay to Colorado found on momondo in the last 72 hours is $271.

The fastest flight from Green Bay to Colorado takes 4h 27m

There are no direct flights from Green Bay to Colorado. There are no popular flight routes from Green Bay to Colorado.

Search flight deals

Frequently asked questions about flying from Green Bay to Colorado

When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Colorado?
Prices for flights from Green Bay Austin-Straubel Airport to Colorado are updated daily.
How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to Colorado?
There are 3 operators available for flights from Green Bay Austin-Straubel Airport to Colorado as of August 2026.
How old do you have to be to fly from Green Bay Austin-Straubel Airport to Colorado?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Green Bay to Colorado?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Green Bay to Colorado is Airbus A320-100/200 (33.33% of total bookings). The next most popular plane models are Airbus A321neo (16.67%), Boeing 737-800 (16.67%), and Airbus A320neo (8.33%).

Best airlines flying from Green Bay to Colorado

Compare and see reviews for airlines that fly from Green Bay to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $254	Free Cancellation	Rating 7.8 8,539 reviews	Search Delta flights
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.1 12,019 reviews	Search American Airlines flights
United Airlines	PriceFrom $263	Free Cancellation	Rating 7.4 10,138 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Green Bay to Colorado?

It is quick and easy to find Green Bay to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

Can I find flights from Green Bay to Colorado with flexible booking policies on momondo?

Flights from Green Bay to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Green Bay to Colorado?

Once all potential Green Bay to Colorado flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Green Bay to Colorado right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Colorado from Green Bay. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.