ON TIMEBOARD

DL 4033 on time

Delta Air Lines 4033: Atlanta to South Bend at 2:24 p.m.; South Bend to Atlanta at 5:02 p.m. (past 12 months). Figures below the title are for ATL → SBN, its busiest leg

On time
73%
300 flights · likely 68–78%
Cancelled
1.7%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+75 min
average delay
Similar flights
73%
DL, same route & hour

About 1 in 4 DL 4033 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (27%); 1.7% were cancelled. The typical flight landed 6 minutes early.

DL 4033: ATL → SBN

Scheduled to leave Atlanta at 2:24 p.m. local time, operated by SkyWest as OO 4033. Over the past year it arrived on time 73% of the time (300 flights), in line with other DL flights on the route at that hour (73%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (20 flights)100SepOct 2025: 85% on time (26 flights)85OctNov 2025: 79% on time (24 flights)79NovDec 2025: 77% on time (26 flights)77DecJan 2026: 48% on time (25 flights)48JanFeb 2026: 64% on time (22 flights)64FebMar 2026: 59% on time (27 flights)59MarApr 2026: 85% on time (26 flights)85AprMay 2026: 72% on time (25 flights)72MayJun 2026: 77% on time (26 flights)77JunJul 2026: 67% on time (27 flights)67JulAug 2026: 73% on time (26 flights)73Aug

By day of week

DayFlightsOn time
Monday5265%
Tuesday5074%
Wednesday4879%
Thursday4877%
Friday4976%
Saturday4—
Sunday4969%

Why it was late

Airline (crew, maintenance, ops) 65%Severe weather 21%Air traffic & airport (NAS) 14%

All flights ATL → SBN · Connecting off DL 4033? Check the risk

DL 4033: SBN → ATL

Scheduled to leave South Bend at 5:02 p.m. local time, operated by SkyWest as OO 4033. Over the past year it arrived on time 66% of the time (300 flights), in line with other DL flights on the route at that hour (67%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from South Bend to Atlanta (100% of days). Delta Air Lines's last SBN–ATL flight was cancelled 1.9% of the time, against 2.3% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 6:00 a.m. the next morning.

Month by month

30%65%100%Sep 2025: 85% on time (20 flights)85SepOct 2025: 77% on time (26 flights)77OctNov 2025: 71% on time (24 flights)71NovDec 2025: 62% on time (26 flights)62DecJan 2026: 40% on time (25 flights)40JanFeb 2026: 68% on time (22 flights)68FebMar 2026: 67% on time (27 flights)67MarApr 2026: 81% on time (26 flights)81AprMay 2026: 56% on time (25 flights)56MayJun 2026: 69% on time (26 flights)69JunJul 2026: 59% on time (27 flights)59JulAug 2026: 62% on time (26 flights)62Aug

By day of week

DayFlightsOn time
Monday5256%
Tuesday5072%
Wednesday4869%
Thursday4877%
Friday4963%
Saturday4—
Sunday4959%

Why it was late

Airline (crew, maintenance, ops) 58%Severe weather 33%Air traffic & airport (NAS) 9%

All flights SBN → ATL · Connecting off DL 4033? Check the risk

Questions

How often is DL 4033 from ATL to SBN late?

Delta Air Lines 4033 from Atlanta, GA to South Bend, IN arrived 15 or more minutes late, was diverted or was cancelled on 27% of 300 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.

How often is DL 4033 from SBN to ATL late?

Delta Air Lines 4033 from South Bend, IN to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 34% of 300 scheduled flights between September 2025 and August 2026. 2.0% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.