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$100+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Aug 24 — Aug 311
Sun 8/24
Sun 8/31
1 adult, Economy
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Cheapflights Tip: The best prices from Green Bay Austin-Straubel to Denver Intl are usually found in July or June, booked 87 days in advance, depart on a Saturday 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 August 19, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$100
(American Airlines)

Popular in

March

Cheapest in

July

Average price

$258

Good round-trip deal

$178 or less

Good one-way deal

$105 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. 17% potential increase in price ($69 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 August 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 August 19, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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 11/194:32 pmGRB - DEN
1 stop6h 50mAmerican Airlines
Mon 11/245:44 pmDEN - GRB
1 stop4h 44mAmerican Airlines
Deal found 8/17$225
This Delta deal was found by Cheapflights users on 8/19. 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 11/84:16 pmGRB - DEN
1 stop4h 14mDelta
Sat 11/1510:30 amDEN - GRB
1 stop5h 02mDelta
Deal found 8/19$251
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 11/133:12 pmGRB - DEN
1 stop8h 10mAmerican Airlines
Wed 11/1912:33 pmDEN - GRB
1 stop5h 49mAmerican Airlines
Deal found 8/16$255
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 11/83:31 pmGRB - DEN
1 stop7h 51mAmerican Airlines
Sat 11/1510:21 amDEN - GRB
2 stops9h 25mAmerican Airlines
Deal found 8/17$256
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 11/133:12 pmGRB - DEN
2 stops9h 08mAmerican Airlines
Tue 11/186:23 amDEN - GRB
2 stops11h 59mAmerican Airlines
Deal found 8/17$265
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/249:44 amGRB - DEN
1 stop7h 54mAmerican Airlines
Tue 10/288:11 amDEN - GRB
2 stops10h 27mAmerican Airlines
Deal found 8/18$274
This Delta deal was found by Cheapflights users on 8/16. 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.
Fri 10/3112:02 pmGRB - DEN
1 stop4h 39mDelta
Sun 11/25:00 amDEN - GRB
1 stop4h 22mDelta
Deal found 8/16$308
This Delta deal was found by Cheapflights users on 8/17. 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.
Fri 10/35:01 pmGRB - DEN
1 stop5h 24mDelta
Sun 10/56:05 amDEN - GRB
1 stop4h 18mDelta
Deal found 8/17$309

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 August 19, 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 11/19

4:32 pm-10:22 pm

1 stop6h 50m

Denver Intl

Mon 11/24

5:44 pm-11:28 pm

1 stop4h 44m

$225

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 1/24

7:00 am-2:11 pm

1 stop8h 11m

Denver Intl

Wed 1/28

6:10 am-11:19 am

1 stop4h 09m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 11/8

4:16 pm-7:30 pm

1 stop4h 14m

Denver Intl

Sat 11/15

2:20 pm-9:33 pm

1 stop6h 13m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 10/11

3:02 pm-8:27 pm

1 stop6h 25m

Denver Intl

Sat 10/18

7:21 am-2:32 pm

1 stop6h 11m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 12/13

6:28 pm-10:17 pm

1 stop4h 49m

Denver Intl

Tue 12/16

2:22 pm-9:33 pm

1 stop6h 11m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 12/6

11:53 am-3:30 pm

1 stop4h 37m

Denver Intl

Wed 12/10

6:10 am-11:14 am

1 stop4h 04m

$251

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Thu 11/13

3:12 pm-10:22 pm

1 stop8h 10m

Denver Intl

Tue 11/18

12:33 pm-7:22 pm

1 stop5h 49m

$255

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Thu 11/13

3:12 pm-10:22 pm

1 stop8h 10m

Denver Intl

Wed 11/19

12:33 pm-7:22 pm

1 stop5h 49m

$255

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Sat 8/30

3:02 pm-8:22 pm

1 stop6h 20m

$100

Green BayDenver

GRB - DEN

GRBDEN

Green Bay Austin-Straubel

Tue 11/18

11:00 am-5:29 pm

1 stop7h 29m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 20 results
1
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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 August 8, 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 August 19, 2025.

When flying from Green Bay to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 19, 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
7,981 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

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
8,922 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

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
7,981 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

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
5.8
Fair
3,211 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

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 2 times in the past calendar month.

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

    Departing from Green Bay to Denver will take you 6h 50m. There are 903 mi between Green Bay and Denver. This flight may include one or multiple stops.

  • 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 $94. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $218 and $238, respectively. Frontier is priced at 71% lower than the current average price of a flight leaving 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $80. While the most popular route (Green Bay Austin-Straubel - Denver Intl) can be booked for $251 on average our data indicates $170 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Golden
Winter Park
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Broomfield
Silverthorne
Frisco
Manitou Springs
Grand Lake
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs

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Alternative routes for Green Bay to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$94Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$218Average$368FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$343FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$396FlexibilityNo cancel feeOn-time69%

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