How reliable is Austin Straubel International Airport?
Flights from GRB departed within 15 minutes of schedule in 83% of 32,452 flights in official BTS history — and weather is calmest in Oct. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at GRB looks like
On-time departures
across 32,452 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Green Bay
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 93/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 79/100 favorability
The read on GRB
What the numbers say about flying through Austin Straubel International Airport
Across official performance history, flights from Green Bay left within 15 minutes of schedule about 83% of the time over 32,452 flights. That's a solid, better-than-average operational record. Pair it with a moderate cancellation rate of 2.0%. When a departure does run late, the typical delay is around 12 minutes.
On weather, Green Bay is an unusually calm-weather airport year-round. October is the calmest stretch for flying, scoring 93 out of 100 for favorable conditions, while January is the most disruptive at 79, driven mainly by low visibility & fog and snow. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Green Bay, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about GRB
- How reliable is Austin Straubel International Airport (GRB)?
- Flights from Green Bay left within 15 minutes of schedule roughly 83% of the time across 32,452 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 2.0%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from GRB for good weather?
- October has the calmest flying weather at Austin Straubel International Airport. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Green Bay?
Score real flights to and from GRB on reliability, weather, and connection safety — not just price.