Cheap flights from Green Bay to Denver International

Compare Green Bay to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

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Flight deals from Green Bay Airport to Denver International Airport

Looking for a cheap last-minute deal or the best round-trip flight from Green Bay Airport to Denver International Airport? If you want to travel next month, round-trip fares start from $279. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Green Bay to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Green Bay to Denver International flights are currently cheapest in May.

Green Bay to Denver International: Alternative routes

Compare routes from Green Bay to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Green Bay to Denver: Flight information

The things to know before you go.
Cheapest flight found$145
Cheapest month to flyApril

Finding cheap flights from Green Bay to Denver International: Frequently asked questions

The best price we found for a round-trip flight from Green Bay to Denver International is $279. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Green Bay to Denver International. But we found flights with one or more stops from $279.
There are no flights flying from Green Bay to Denver International, as of April 2026.
The cheapest month to fly from Green Bay to Denver International is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Green Bay Airport to Denver International Airport on Friday, May 15, 2026.
No airlines currently offer direct flights between Green Bay Airport and Denver International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Denver International.

Traveling from Austin Straubel International Airport (GRB) to Denver International Airport (DEN): what you need to know

  • Denver's timezone is UTC-6, making Denver one hour behind Green Bay.

  • Give yourself plenty of time to catch your GRB to DEN flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as September, it's a good idea to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're traveling during a peak period in general.

  • Frontier Airlines has direct flights from Austin Straubel International Airport to Denver International Airport. Book with this popular carrier, then get ready to see the sights in Denver — and maybe even more of United States if your schedule allows.

  • The airline that passengers book most often on this route is Frontier Airlines.

  • Consider adding a stopover when booking your ticket from Austin Straubel International Airport to Denver International Airport. Simply deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here are some options between GRB and DEN:

    • Minneapolis-St. Paul International Airport

    • O'Hare International Airport

    • Detroit Metropolitan Wayne County Airport

How to find the cheapest flights from Austin Straubel International Airport (GRB) to Denver International Airport (DEN)

  • $145 is the best price for a one-way Austin Straubel International Airport to Denver International Airport flight. A return flight starts from $279. These fares may change based on availability.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from GRB to DEN if you book ahead. Airlines often have some fantastic early bird rates.

  • If you're willing to be flexible with your travel dates, try using the 'Whole month' search tool. It'll give you the cheapest price across the month when looking for a flight from Austin Straubel International Airport to Denver International Airport.

  • Snapping up cheap flights from GRB to DEN is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as fares go down.

  • Tailor your flights with filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Austin Straubel International Airport to Denver International Airport.

Handy information about Austin Straubel International Airport (GRB)

  • You'll find GRB at 2077 Airport Drive.

  • 74.0% of flights departing from Austin Straubel International Airport land at their destination on schedule.

  • Austin Straubel International Airport is around 14 kilometers from central Green Bay. If you're ride-sharing, catching a cab or driving from the center, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • Have an early flight from Austin Straubel International Airport to Denver International Airport? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by picking one of these hotels near GRB:

Arriving at Denver International Airport (DEN)

  • Consider a stay at Baymont by Wyndham Denver International Airport after your Austin Straubel International Airport to Denver International Airport flight. It's not too far from DEN and a good choice if you'd like to catch some z's soon after landing.

  • Pick up a Denver International Airport rental car and discover Denver and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are leading providers you can book with here.

  • Get the best deal by reserving your vehicle from Denver International Airport about one week in advance of your trip.

Getting from Denver International Airport (DEN) to central Denver

  • You'll find DEN at 8500 Pena Boulevard.

  • Denver International Airport is roughly 40 kilometers from central Denver. Driving there takes about 35 minutes.

  • It typically takes 1 hour 30 minutes when traveling by public transport.

When to fly to Denver International Airport (DEN)

  • July is the most popular month for flights from Austin Straubel International Airport to Denver International Airport. To escape the crowds, go to Denver in April.

  • The warmest month in Denver is July, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Lock in your flights from Austin Straubel International Airport to Denver International Airport in this month if this is the type of weather you like.

  • Search for cheap tickets from GRB to DEN in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -9ºC (16ºF) and 7ºC (45ºF) on average.

Explore more of United States

  • You've visited Denver, now it's time to explore more of United States. Journey around 105 kilometers south to Colorado Springs to tick off its popular sights. From US Northern Command (USNORTHCOM) / North American Aerospace Defense Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), your itinerary will be busy.

  • Around 13 kilometers east of Denver, Aurora is another essential stop in United States. Experience the best of this destination with a visit to Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.