GRB - DEN

$126 Find Cheap Flights from Green Bay to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Green Bay to Denver departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Denver, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Green Bay to Denver (GRB-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Green Bay to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Green Bay to Denver

Sat, Nov 8 - Sat, Nov 15
Delta Logo
7:00 am - 1:39 pmGRB-DEN
7h 39m1 stop
Delta Logo
6:00 am - 11:33 amDEN-GRB
4h 33m1 stop
$251Delta
Find Deal
Fri, Oct 24 - Tue, Oct 28
Delta Logo
5:20 pm - 10:06 pmGRB-DEN
5h 46m1 stop
Delta Logo
6:05 am - 11:22 amDEN-GRB
4h 17m1 stop
$255Delta
Find Deal
Sat, Nov 8 - Sat, Nov 15
American Airlines Logo
7:17 am - 5:45 pmGRB-DEN
11h 28m2 stops
American Airlines Logo
11:26 am - 7:37 pmDEN-GRB
7h 11m1 stop
$256American Airlines
Find Deal
Thu, Oct 30 - Sun, Nov 2
Delta Logo
6:30 am - 12:39 pmGRB-DEN
7h 09m1 stop
Delta Logo
5:00 am - 10:22 amDEN-GRB
4h 22m1 stop
$259Delta
Find Deal
Thu, Nov 13 - Tue, Nov 18
American Airlines Logo
3:09 pm - 10:22 pmGRB-DEN
8h 13m1 stop
American Airlines Logo
6:23 am - 7:22 pmDEN-GRB
11h 59m2 stops
$260American Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
American Airlines Logo
6:00 am - 1:55 pmGRB-DEN
8h 55m2 stops
American Airlines Logo
8:13 am - 7:37 pmDEN-GRB
10h 24m2 stops
$261American Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 24
United Airlines Logo
10:40 am - 2:42 pmGRB-DEN
5h 02m1 stop
United Airlines Logo
2:45 pm - 8:58 pmDEN-GRB
5h 13m1 stop
$279United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
Delta Logo
12:04 pm - 3:44 pmGRB-DEN
4h 40m1 stop
Delta Logo
6:05 am - 11:23 amDEN-GRB
4h 18m1 stop
$289Delta
Find Deal
Sat, Dec 13 - Sun, Dec 14
United Airlines Logo
1:35 pm - 8:04 pmGRB-DEN
7h 29m1 stop
United Airlines Logo
6:00 am - 1:00 pmDEN-GRB
6h 00m1 stop
$295United Airlines
Find Deal
Sat, Oct 18 - Wed, Oct 22
United Airlines Logo
2:40 pm - 8:19 pmGRB-DEN
6h 39m1 stop
United Airlines Logo
2:45 pm - 8:58 pmDEN-GRB
5h 13m1 stop
$321United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $251 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 44% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$251
Typical prices: $273-396
Delta
Sat 11/8Sat 11/15
GRB - DEN • 1 stop
Cheapest one-way
$126
Typical prices: $212-431
Delta
Wed 12/3
GRB - DEN • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Booking Insights

KAYAK's insights & trends for Green Bay to Denver flights

Get data-powered insights and trends into flights from Green Bay to Denver to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Green Bay to Denver?

What’s the cheapest day of the week to fly from Green Bay to Denver?

The average price of all round-trip flights from Green Bay to Denver clicked on KAYAK for each day over the last 12 months.

For Green Bay to Denver, Saturday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Denver back to Green Bay, the best deals are generally found on Wednesday, with Monday being the most expensive.

What is the cheapest month to fly from Green Bay to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Green Bay to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Green Bay to Denver is July, where tickets cost $179 (return) on average. On the other hand, the most expensive months are March and October, where the average cost of round-trip tickets is $524 and $383 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Green Bay to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Green Bay to Denver, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$126
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Green Bay to Denver

When to book flights from Green Bay to Denver

Are your dates flexible? Find out the best times to travel from Green Bay to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Green Bay to Denver

  • What is the cheapest flight from Green Bay to Denver?

    In the last 3 days, the lowest price for a flight from Green Bay to Denver was $126 for a one-way ticket and $251 for a round-trip.

  • Do I need a passport to fly between Green Bay and Denver?

    No, a passport isn't needed to fly from Green Bay to Denver. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Green Bay to Denver?

    Green Bay airport is called Green Bay Austin-Straubel and the only airport in Denver is Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Green Bay to Denver?

    American Airlines, and Delta offer inflight Wi-Fi service on the Green Bay to Denver flight route.

  • Which aircraft models fly most regularly from Green Bay to Denver?

    The Airbus A321neo is the aircraft model that flies most regularly on the Green Bay to Denver flight route.

  • Which airline alliances offer flights from Green Bay to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Green Bay and Denver, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Green Bay to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Green Bay to Denver are Delta and United Airlines. With an average price for the route of $335 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $400 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Green Bay to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Green Bay to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Green Bay to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Green Bay is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Green Bay to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Green Bay with another airline. Booking your flights between Green Bay and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Green Bay to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Green Bay up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Green Bay to Denver

 
See real verified KAYAK customer reviews for airlines flying from Green Bay to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Green Bay to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7957 reviews
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
8.2Boarding
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Everything you need to know for your flight from Green Bay to Denver

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