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 44% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 5 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 4 operators available for flights from Green Bay Austin-Straubel Airport to Colorado as of November 2025.

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.

$239 Cheap Flights from Green Bay to Colorado in 2025/26

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Cheap round-trip flights

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4:15 pm - 8:05 pmGRB-DEN

4h 50m1 stop

10:34 am - 4:39 pmDEN-GRB

5h 05m1 stop

$251Delta

Find Deal

Sat, Jan 24 - Wed, Jan 28

6:39 pm - 10:36 pmGRB-DEN

4h 57m1 stop

12:19 pm - 8:27 pmDEN-GRB

7h 08m1 stop

$255American Airlines

Find Deal

Fri, Feb 20 - Tue, Feb 24

4:53 pm - 11:16 pmGRB-DEN

7h 23m1 stop

6:00 am - 4:23 pmDEN-GRB

9h 23m2 stops

$256American Airlines

Find Deal

Tue, Jan 27 - Sat, Jan 31

6:39 pm - 10:36 pmGRB-DEN

4h 57m1 stop

6:20 am - 8:27 pmDEN-GRB

13h 07m2 stops

$260American Airlines

Find Deal

Fri, Feb 20 - Tue, Feb 24

11:20 am - 8:53 pmGRB-DEN

10h 33m2 stops

6:00 am - 4:23 pmDEN-GRB

9h 23m2 stops

$261American Airlines

Find Deal

Tue, Jan 27 - Sat, Jan 31

7:00 am - 2:38 pmGRB-DEN

8h 38m1 stop

5:45 am - 11:33 amDEN-GRB

4h 48m1 stop

$280Delta

Find Deal

Sat, Dec 13 - Tue, Dec 16

10:42 am - 4:34 pmGRB-DEN

6h 52m1 stop

6:00 am - 2:02 pmDEN-GRB

7h 02m1 stop

$284United Airlines

Find Deal

Fri, Jan 30 - Sun, Feb 1

6:15 am - 11:26 amGRB-COS

6h 11m1 stop

9:24 am - 4:46 pmCOS-GRB

6h 22m1 stop

$309United Airlines

Find Deal

Wed, Dec 10 - Sun, Dec 14

4:17 pm - 8:02 pmGRB-DEN

4h 45m1 stop

5:45 am - 11:33 amDEN-GRB

4h 48m1 stop

$309Delta

Find Deal

Wed, Dec 10 - Sun, Dec 14

6:15 am - 2:29 pmGRB-COS

9h 14m2 stops

9:24 am - 4:46 pmCOS-GRB

6h 22m1 stop

$314United Airlines

Find Deal

Wed, Dec 10 - Sun, Dec 14

American Airlines flights from Green Bay to Colorado

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

American Airlines

Feb 20

GRB6:39 pmGreen Bay Austin-Straubel

4h 57m

1 stop

DEN10:36 pmDenver Intl

Feb 24

DEN12:19 pmDenver Intl

7h 08m

1 stop

GRB8:27 pmGreen Bay Austin-Straubel

$255

Find similar

American Airlines

Jan 10

GRB4:53 pmGreen Bay Austin-Straubel

7h 23m

1 stop

DEN11:16 pmDenver Intl

Jan 14

DEN7:55 amDenver Intl

13h 19m

2 stops

GRB10:14 pmGreen Bay Austin-Straubel

$256

Find similar

American Airlines

Feb 20

GRB6:39 pmGreen Bay Austin-Straubel

4h 57m

1 stop

DEN10:36 pmDenver Intl

Feb 24

DEN9:29 amDenver Intl

9h 58m

2 stops

GRB8:27 pmGreen Bay Austin-Straubel

$260

Find similar

Delta flights from Green Bay to Colorado

Our best Delta deals on Green Bay to Colorado flight tickets

Delta

Jan 24

GRB4:15 pmGreen Bay Austin-Straubel

4h 50m

1 stop

DEN8:05 pmDenver Intl

Jan 28

DEN10:34 amDenver Intl

5h 05m

1 stop

GRB4:39 pmGreen Bay Austin-Straubel

$251

Find similar

Delta

Dec 10

GRB4:17 pmGreen Bay Austin-Straubel

4h 45m

1 stop

DEN8:02 pmDenver Intl

Dec 16

DEN5:45 amDenver Intl

4h 48m

1 stop

GRB11:33 amGreen Bay Austin-Straubel

$280

Find similar

Delta

Dec 10

GRB4:17 pmGreen Bay Austin-Straubel

4h 45m

1 stop

DEN8:02 pmDenver Intl

Dec 14

DEN5:45 amDenver Intl

4h 48m

1 stop

GRB11:33 amGreen Bay Austin-Straubel

$309

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 1/24

4:15 pm-8:05 pm

1 stop4h 50m

Denver Intl

Wed 1/28

10:34 am-4:39 pm

1 stop5h 05m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Fri 2/20

6:39 pm-10:36 pm

1 stop4h 57m

Denver Intl

Tue 2/24

12:19 pm-8:27 pm

1 stop7h 08m

$255

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Tue 1/27

4:53 pm-11:16 pm

1 stop7h 23m

Denver Intl

Sat 1/31

6:00 am-4:23 pm

2 stops9h 23m

$256

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Fri 2/20

6:39 pm-10:36 pm

1 stop4h 57m

Denver Intl

Tue 2/24

6:20 am-8:27 pm

2 stops13h 07m

$260

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Tue 1/27

11:20 am-8:53 pm

2 stops10h 33m

Denver Intl

Sat 1/31

6:00 am-4:23 pm

2 stops9h 23m

$261

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 12/13

7:00 am-2:38 pm

1 stop8h 38m

Denver Intl

Tue 12/16

5:45 am-11:33 am

1 stop4h 48m

$280

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Fri 1/30

10:42 am-4:34 pm

1 stop6h 52m

Denver Intl

Sun 2/1

6:00 am-2:02 pm

1 stop7h 02m

$284

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Wed 12/10

6:15 am-11:26 am

1 stop6h 11m

Colorado Springs

Sun 12/14

9:24 am-4:46 pm

1 stop6h 22m

$309

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 12/10

4:17 pm-8:02 pm

1 stop4h 45m

Denver Intl

Sun 12/14

5:45 am-11:33 am

1 stop4h 48m

$309

Green BayColorado Springs

GRB - COS

GRBCOS

Green Bay Austin-Straubel

Wed 12/10

6:15 am-2:29 pm

2 stops9h 14m

Colorado Springs

Sun 12/14

9:24 am-4:46 pm

1 stop6h 22m

$314

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 July is, on average, the cheapest month to fly to Colorado from Green Bay, with most prices found around $179. The month of June is another great option to travel to Colorado, with average flight prices from Green Bay averaging around $214.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Green Bay to Colorado is on a Saturday when prices can be found for as low as $149. On the other hand, Wednesday is the most expensive day to depart from Green Bay because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $210.

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

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Green Bay when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Green Bay for as low as $192 on momondo.

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

There is only 1 cabin class available to choose from on Green Bay Austin-Straubel 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

Fastest flight time	4h 25m
Direct flights	None

The fastest flight from Green Bay to Colorado takes 4h 25m

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

Search flight deals

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 4 operators available for flights from Green Bay Austin-Straubel Airport to Colorado as of November 2025.
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 (21.05% of total bookings). The next most popular plane models are Airbus A321neo (15.79%), Boeing 737-800 (15.79%), and Boeing 737 MAX 8 (5.26%).

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
Frontier	PriceFrom $94	Free Cancellation	Rating 5.8 3,099 reviews	Search Frontier flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
American Airlines	PriceFrom $238	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,046 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.

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Colorado

Popular cities in Colorado

Flights to New Yorkfrom $33

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Flights to Orlandofrom $48

Flights to Las Vegasfrom $49

Flights to San Franciscofrom $57

Flights to Washington, D.C.from $38

Flights to Bostonfrom $59

Flights to Atlantafrom $48

Flights to Dallasfrom $54

Flights to Seattlefrom $58

Green Bay flight routes

Flights from Green Bay Austin-Straubel to Fort Myers SW Florida Intl

Flights from Green Bay Austin-Straubel to Detroit Metropolitan Wayne County

Flights from Green Bay Austin-Straubel to Minneapolis St Paul

Flights from Green Bay Austin-Straubel to Chicago O'Hare Intl

Flights from Green Bay Austin-Straubel to Atlanta Hartsfield-Jackson

Cheap flights from Green Bay to Colorado from $251

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to Colorado departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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American Airlines flights from Green Bay to Colorado

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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

What is the cheapest month to fly to Colorado?

The month of July is, on average, the cheapest month to fly to Colorado from Green Bay, with most prices found around $179. The month of June is another great option to travel to Colorado, with average flight prices from Green Bay averaging around $214.

What is the cheapest day to depart on your flight to Colorado?

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

How far in advance should I book a flight to Colorado?

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

There is only 1 cabin class available to choose from on Green Bay Austin-Straubel 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.

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

What airlines fly 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

Fastest flight time

Direct flights

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

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

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

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

What is the most popular plane model from Green Bay to Colorado?

Best airlines flying from Green Bay to Colorado

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

Why use momondo?

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

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

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

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

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo