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Airport · 12 months to July 2026
Green Bay Austin Straubel International: delays and on-time record
Green Bay, Wisconsin
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.
Green Bay Austin Straubel International (GRB) in Green Bay, Wisconsin had 4,824 scheduled domestic departures by reporting carriers in the 12 months to July 2026, about 13 a day, on 10 routes.
78.7% of those flights left the gate less than 15 minutes late, 2.6 points above the national departure figure of 76.1%. Flights arriving at GRB were on time 70.5% of the time, 5.5 points below the national arrival figure of 76.0%.
3.3% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 19.8 min.
SkyWest Airlines is the largest reporting carrier at GRB with 56% of departures. Among carriers with at least 120 departures, Delta Air Lines had the highest on-time arrival share for its GRB departures (83.8%) and Republic Airline the lowest (70.3%).
On-time departures are down 3.9 points on the previous 12 months (82.6%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving GRB, air carrier 38%, late-arriving aircraft 29% and national aviation system 19%.
- On time 74.5%
- Arrived 15+ minutes late 22.0%
- Cancelled 3.3%
- Diverted 0.2%
As origin and as destination, against the nation
| Measure | Departures from GRB | Arrivals at GRB | All reported flights | GRB departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 78.7% | 72.6% | 76.1% | 82.6% |
| Arrived on time | 74.5% | 70.5% | 76.0% | 79.8% |
| Cancelled | 3.3% | 3.3% | 1.8% | 0.8% |
| Diverted | 0.2% | 0.3% | 0.3% | 0.0% |
| Average departure delay (late minutes only) | 19.8 min | 21.5 min | 17.4 min | 15.6 min |
| Arrival delay minutes per 100 flights | 2,077 | 2,212 | 1,684 | 1,674 |
| Scheduled flights | 4,824 | 4,825 | 7,043,858 | 4,097 |
12 months to July 2026. The first column follows flights that left GRB; the second follows flights that landed there. Year on year, on-time departures moved −3.9 pts.
Airlines at GRB
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 2,713 | 56% | 72.7% | 15.9 min | 3.2% |
| MQ Envoy Air | 1,384 | 29% | 74.9% | 6.8 min | 3.5% |
| DL Delta Air Lines | 556 | 12% | 83.8% | -0.8 min | 1.8% |
| YX Republic Airline | 165 | 3% | 70.3% | 11.4 min | 6.1% |
Departures from GRB by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 74.5%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from GRB
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| GRB–ORD | Green Bay to Chicago | 2,698 | 69.2% | 16.1 min | 4.4% |
| GRB–DTW | Green Bay to Detroit | 875 | 79.5% | 8.1 min | 1.9% |
| GRB–MSP | Green Bay to Minneapolis | 867 | 81.1% | 4.5 min | 1.4% |
| GRB–ATL | Green Bay to Atlanta | 366 | 86.1% | 0.0 min | 1.9% |
| GRB–DEN | Green Bay to Denver | 6 | 66.7% | 9.3 min | 0.0% |
| GRB–CLT | Green Bay to Charlotte | 4 | 100.0% | -23.2 min | 0.0% |
| GRB–PHX | Green Bay to Phoenix | 3 | 100.0% | -7.7 min | 0.0% |
| GRB–DCA | Green Bay to Washington | 2 | 100.0% | -2.5 min | 0.0% |
| GRB–PHL | Green Bay to Philadelphia | 2 | 50.0% | 0.0 min | 50.0% |
| GRB–CMX | Green Bay to Hancock/Houghton | 1 | 0.0% | — | 0.0% |
Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 96 departures, 6 am to 7 am had the highest on-time share (90.5% of 842 flights) and 5 pm to 6 pm the lowest (66.7% of 492).
Delay causes
Cancellations by reported reason (157 in the period): air carrier 4%, weather 70%, national aviation system 25%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for GRB on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave GRB on time?
78.7% of the 4,824 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 3.3% were cancelled.
How often do flights arrive at GRB on time?
70.5% of 4,825 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at GRB?
Counting departures from GRB and whether they reached their destination on time, Delta Air Lines had the highest share (83.8% of 556 flights), then Envoy Air (74.9%) and SkyWest Airlines (72.7%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at GRB?
For departures from GRB that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: air carrier 38%, late-arriving aircraft 29%, national aviation system 19%, extreme weather 15%, security 0%.
What time of day has the highest on-time share at GRB?
Departures scheduled from 6 am to 7 am local time left on time 90.5% of the time, the highest of any hour with enough flights to compare; 5 pm to 6 pm was lowest at 66.7%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 78.7%, down 3.9 points on the previous 12 months (82.6%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at GRB?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.