Austin Straubel International Airport (GRB) offers nonstop flights to 5 destinations across the United States. The busiest direct routes from GRB are served by American, United, Delta and Sun Country, with the most frequent nonstop service to Chicago, Minneapolis and Detroit.

Every route below leaves GRB and lands at your destination — no layovers, no connections. Use the day filter above to see exactly which routes fly on the day you want to travel. Route data updated October 2026 from observed departures.

Airlines and flight times at GRB

4 airlines fly nonstop out of GRB. Delta runs the biggest operation — about 30 of the 59 weekly departures (51%), across 2 routes — followed by American and Sun Country.

The airlines flying nonstop out of Green Bay are Delta, American, Sun Country and United.

On 3 of Green Bay's 5 nonstop routes, a single airline has the service to itself — Delta is the only airline with a nonstop to Detroit, and Sun Country the only one to Bullhead City.

The shortest nonstop out of GRB is Chicago at about 36m in the air; the longest is Bullhead City at about 3h17m.

Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.