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$79+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheapflights Tip: The best prices from Green Bay Austin-Straubel to Denver Intl are usually found in May or July, booked 79 days in advance, depart on a Thursday or Tuesday 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$188
(Frontier)

One-way from

$79
(Frontier)

Popular in

March

Cheapest in

May

Average price

$443

Good round-trip deal

$122 or less

Good one-way deal

$162 or less
Provider with most accurate pricing for Green Bay Austin-Straubel-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Denver Intl flights.
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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. 9% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 25, 2025.

This Frontier deal was found by Cheapflights users on 3/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:53 pmGRB - DEN
Nonstop2h 47mFrontier
Mon 7/213:31 pmDEN - GRB
Nonstop2h 24mFrontier
Deal found 3/24$188
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/234:35 pmGRB - DEN
1 stop7h 04mAmerican Airlines
Sat 4/267:20 amDEN - GRB
1 stop6h 21mAmerican Airlines
Deal found 3/24$199
This Delta deal was found by Cheapflights users on 3/23. 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 4/194:20 pmGRB - DEN
1 stop5h 11mDelta
Sat 4/266:10 amDEN - GRB
1 stop6h 54mDelta
Deal found 3/23$217
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Sat 6/145:35 pmGRB - DEN
1 stop6h 55mUnited Airlines
Sat 6/216:00 amDEN - GRB
1 stop14h 23mUnited Airlines
Deal found 3/25$401

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 March 25, 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

Wed 7/16

7:53 pm-9:40 pm

Nonstop2h 47m

Denver Intl

Mon 7/21

3:31 pm-6:55 pm

Nonstop2h 24m

$188

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 4/23

4:35 pm-10:39 pm

1 stop7h 04m

Denver Intl

Sat 4/26

7:20 am-2:41 pm

1 stop6h 21m

$199

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 4/19

4:20 pm-8:31 pm

1 stop5h 11m

Denver Intl

Sat 4/26

6:10 am-2:04 pm

1 stop6h 54m

$217

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 6/14

5:35 pm-11:30 pm

1 stop6h 55m

Denver Intl

Sat 6/21

6:00 am-9:23 pm

1 stop14h 23m

$401

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 6/25

7:53 pm-9:34 pm

Nonstop2h 41m

$79

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sun 4/20

6:00 am-10:23 am

1 stop5h 23m

$100

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Wed 4/23

6:43 pm-11:09 pm

1 stop5h 26m

$109

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Tue 4/22

5:25 pm-11:12 pm

1 stop6h 47m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Green Bay to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Green Bay-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Green Bay-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 2025.

To ensure you get the cheapest price possible for a flight from Green Bay to Denver, you should look to book at least 57 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 March 25, 2025.

It’s optimal to fly from Green Bay to Denver at noon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the morning.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 March 25, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Green Bay to Denver by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,273 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $188. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $199 and $217, respectively. Frontier is priced at 40% 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?

    $79 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $100 and $109, respectively.

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

    Looking at all options, your cheapest flight can be booked for $78. While the most popular route (Green Bay Austin-Straubel - Denver Intl) can be booked for $208 on average our data indicates $145 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
Lakewood
Black Hawk
Winter Park
Broomfield
Cripple Creek
Silverthorne
Golden
Brighton
Greeley
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

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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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$156FlexibilityNo cancel feeOn-time62%
DeltaCheapest$217Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$397FlexibilityNo cancel feeOn-time69%
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