Route on-time record
ATL to GRB: most on-time flights and the best time to fly
Atlanta (Hartsfield Jackson Atlanta International Airport) to Green Bay (Austin Straubel International Airport). 366 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 1.9% were cancelled. The most reliable flight number was Delta 2948 at 9:44 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ATL → GRB
Atlanta to Green Bay: 366 nonstop flights a year
On time (12 months)
79%
Cancelled
1.9%
avg delay 12 min
Best time to leave
No clear winner
Most reliable airline
Delta
77% 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 2948
9:44 PM → 10:52 PM2h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 1.9%
- Avg arrival delay
- 12 min
- Arrived on time 79% of the time (353 flights, Jun 2025 to May 2026).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Strong track record · 353 flights
Find Delta 2948 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines77%
366 flights · 79% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- After 9 PM79%
360 flights · avg delay 12 min
Best day: Tuesday (87%). Worst: Sunday (71%).
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)51%
- Late-arriving aircraft23%
- Air traffic control and airport volume20%
- Severe weather6%
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
ATL to GRB questions
- Which airline is most on time from ATL to GRB?
- Delta, with a season-adjusted 77% 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 ATL to GRB?
- July (67% on time); the best was September (91%), 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 ATL
- GRB to ATL (return)
- ATL to LGA 73%
- ATL to MCO 69%
- ATL to FLL 69%
- ATL to DCA 69%
- ATL to DFW 73%
- ATL to ORD 71%
- ATL to EWR 72%
- ATL to MIA 70%
- ATL to TPA 71%
- ATL to PHL 73%
- ATL to DEN 76%
- ATL to BWI 74%
Live status: FAA delays and ground stops