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$80+ Cheap flights from Green Bay to Denver (GRB - DEN)

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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
juil. 8 — juil. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Green Bay Austin-Straubel to Denver Intl are usually found in June or July, booked 87 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap flight deals from Green Bay to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated juillet 3, 2025.

Round-trip from

$154
(Priceline)

One-way from

$80
(Frontier)

Popular in

March

Cheapest in

June

Average price

$218

Good round-trip deal

$158 or less

Good one-way deal

$104 or less
From Green Bay Austin-Straubel to Denver Intl
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One-way flight from Green Bay Austin-Straubel to Denver Intl
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Highest demand for flights based on searches. 18% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Green Bay Austin-Straubel to Denver Intl.
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Price to beat on a one-way flight from Green Bay Austin-Straubel to Denver Intl.
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Find flight deals from Green Bay to Denver

Cheapest flights from Green Bay to Denver
Explore the most affordable flight options available from Green Bay to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 3, 2025.

This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/257:52 pmGRB - DEN
Nonstop2h 47mFrontier
lun. 7/283:31 pmDEN - GRB
Nonstop2h 24mFrontier
Deal found 7/1$154
This American Airlines deal was found by Cheapflights users on 7/1. 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.
mer. 9/104:35 pmGRB - DEN
1 stop6h 41mAmerican Airlines
mer. 9/249:47 amDEN - GRB
1 stop7h 09mAmerican Airlines
Deal found 7/1$251
This Delta deal was found by Cheapflights users on 7/2. 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.
sam. 8/304:20 pmGRB - DEN
1 stop4h 35mDelta
lun. 9/16:15 amDEN - GRB
1 stop4h 11mDelta
Deal found 7/2$277

Cheapflights Fare Finder

Customize your flight search to find flights from Green Bay to Denver 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 juillet 3, 2025.
Use the filters below to find and compare flights from Green Bay to Denver that are best for you.

Fly from

Green Bay

Fly to

Denver

Route

Depart

Return

Price

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

ven. 7/25

7:52 pm-9:39 pm

Nonstop2h 47m

Denver Intl

lun. 7/28

3:31 pm-6:55 pm

Nonstop2h 24m

$154

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

mer. 9/10

4:35 pm-10:16 pm

1 stop6h 41m

Denver Intl

mer. 9/24

9:47 am-5:56 pm

1 stop7h 09m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

sam. 8/30

4:20 pm-7:55 pm

1 stop4h 35m

Denver Intl

lun. 9/1

6:15 am-11:26 am

1 stop4h 11m

$277

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

ven. 7/18

7:52 pm-9:39 pm

Nonstop2h 47m

$80

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

mar. 8/19

7:02 am-1:54 pm

1 stop7h 52m

$126

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

sam. 7/12

6:15 am-5:44 pm

2 stops12h 29m

$135

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

mer. 8/20

5:30 pm-11:03 pm

1 stop6h 33m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from Green Bay to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

How far ahead should I book a flight from Green Bay to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Green Bay to Denver. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Green Bay to Denver, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Green Bay to Denver?

Currently, October is the cheapest month in which you can book a flight from Green Bay to Denver (average of $197). Flying from Green Bay to Denver in March is currently the most expensive (average of $278). 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 DEN?

Find hourly flight availability from Green Bay to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juillet 3, 2025.

It’s optimal to fly from Green Bay to Denver at noon. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated juillet 3, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Green Bay to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,286 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Green Bay to Denver flight route?

    Flights from Green Bay Austin-Straubel to Denver Intl have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines flying from Green Bay to Denver round-trip?

    Flying on Frontier is currently your cheapest option to Denver, with prices starting at $154. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $251 and $277, respectively. Frontier is priced at 52% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Green Bay to Denver one-way?

    $80 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $126 and $135, respectively.

  • What are the cheapest flights from Green Bay to Denver?

    Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Green Bay Austin-Straubel - Denver Intl) can be booked for $165 on average our data indicates $158 when flying from Green Bay to Denver.

  • Can I find deals for flights from Green Bay to Denver that include hotel bookings?

    Yes. In addition to deals on Green Bay to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Denver.

  • Can I find deals for business class flights from Green Bay to Denver?

    Yes. Cheapflights offers flight deals from Green Bay to Denver 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 Denver?

    Currently, October is the cheapest month in which you can book a flight from Green Bay to Denver (average of $197). Flying from Green Bay to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Broomfield
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs

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Top 4 airlines flying from Green Bay to Denver

Discover the top 4 airlines that operate flights from Green Bay to Denver. 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 juillet 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$197FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$204Average$338FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$373FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$271Average$393FlexibilityNo cancel feeOn-time69%

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