The cheapest times to fly from GRB to BOI are

  • January 1st to March 11th (except the week of February 19th)
  • April 2nd to May 6th
  • June 25th to July 22nd (except the week of July 9th)
  • August 13th to September 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from GRB to BOI is late January and early February. Prices can be as high as $836 for Monday flights during early to mid March, or as low as $333 for Tuesday flights around late January and early February.


When to Fly to Boise

Flying from Green Bay, WI (GRB) to Boise, ID (BOI) will usually cost between $339 to $636 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $362. Due to high demand the most expensive time to fly is early to mid March, with an average price of $607. Planning your trip to low-cost times can easily save you $244 on economy flights and even more on first-class flights. Generally, any price below $458 can be considered a good price for a round-trip GRB to BOI flight.

See below for a graph of average weekly prices for the GRB to BOI route. All prices are for round-trip tickets in USD.

GRB to BOI Flight Prices

Compared to other flights, the GRB to BOI flight is much cheaper than the average and costs less than the average flight leaving from Green Bay. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $137 (26%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $387. Return trip prices are from the BOI to GRB flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from GRB to BOI can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 29 minutes may not be realistic.


Flight Questions Answered

Still have questions about flying from GRB to BOI? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Delta, Frontier, United, and potentially more during busy seasons.

How far away is it from Boise Air Terminal Airport to Green Bay Austin Straubel International Airport?

The distance between the two airports is roughly 1390 miles or 2237 kilometers.

How long does it take to fly from GRB to BOI?

The real-world flight time for a nonstop GRB to BOI flight is about 3 hour 29 minutes.

How many flights go between Green Bay, WI and Boise, ID?

It depends on the day of the week and the date, but a typical day might have around 62 available flights from GRB to BOI.


Airport Location Info


Departing Airport

Origination code GRB
Origination airport name Green Bay Austin Straubel International Airport
City Green Bay, WI
Country the United States
Latitude 44.5
Longitude -88.1

Return Airport

Destination code BOI
Destination airport name Boise Air Terminal Airport
City Boise, ID
Country the United States
Latitude 43.6
Longitude -116.2


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.