Route on-time record
GRB to ATL: most on-time flights and the best time to fly
Green Bay (Austin Straubel International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 366 nonstop flights in Jun 2025 to May 2026, 89% arrived within 15 minutes and 1.9% were cancelled. The most reliable flight number was Delta 2691 at 5:19 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
GRB → ATL
Green Bay to Atlanta: 366 nonstop flights a year
On time (12 months)
89%
Cancelled
1.9%
avg delay 14 min
Best time to leave
No clear winner
Most reliable airline
Delta
87% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 2691
5:19 AM → 8:39 AM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.9%
- Avg arrival delay
- 14 min
- Arrived on time 89% of the time (355 flights, Jun 2025 to May 2026).
Strong track record · 355 flights
Find Delta 2691 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines87%
366 flights · 89% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
364 flights · avg delay 14 min
Best day: Tuesday (93%). Worst: Monday (83%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)66%
- Air traffic control and airport volume31%
- Severe weather3%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
GRB to ATL questions
- Which airline is most on time from GRB to ATL?
- Delta, with a season-adjusted 87% chance of operating and arriving on time over 366 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on GRB to ATL?
- December (75% on time); the best was August (95%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from GRB
Live status: FAA delays and ground stops