ON TIMEBOARD

DL 1099 on time

Delta Air Lines 1099: Tampa to Atlanta at 1:45 p.m.; Atlanta to Tampa at 11:10 a.m. (past 12 months). Figures below the title are for TPA → ATL, its busiest leg

On time
79%
364 flights · likely 75–83%
Cancelled
2.2%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+83 min
average delay
Similar flights
81%
DL, same route & hour

About 1 in 5 DL 1099 flights from Tampa arrived 15+ minutes late, diverted or cancelled over the past year (21%); 2.2% were cancelled. The typical flight landed 9 minutes early.

DL 1099: TPA → ATL

Scheduled to leave Tampa at 1:45 p.m. local time. Over the past year it arrived on time 79% of the time (364 flights), in line with other DL flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 80% on time (30 flights)80OctNov 2025: 93% on time (30 flights)93NovDec 2025: 81% on time (31 flights)81DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 71% on time (31 flights)71MarApr 2026: 90% on time (30 flights)90AprMay 2026: 71% on time (31 flights)71MayJun 2026: 83% on time (30 flights)83JunJul 2026: 65% on time (31 flights)65JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday5377%
Tuesday5283%
Wednesday5288%
Thursday5285%
Friday5182%
Saturday5275%
Sunday5265%

Why it was late

Late inbound plane 45%Air traffic & airport (NAS) 34%Airline (crew, maintenance, ops) 20%Severe weather 1%

All flights TPA → ATL · Connecting off DL 1099? Check the risk

DL 1099: ATL → TPA

Scheduled to leave Atlanta at 11:10 a.m. local time. Over the past year it arrived on time 82% of the time (363 flights), in line with other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 90% on time (31 flights)90OctNov 2025: 90% on time (30 flights)90NovDec 2025: 77% on time (30 flights)77DecJan 2026: 77% on time (30 flights)77JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 58% on time (31 flights)58MarApr 2026: 90% on time (30 flights)90AprMay 2026: 74% on time (31 flights)74MayJun 2026: 100% on time (30 flights)100JunJul 2026: 74% on time (31 flights)74JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday5372%
Tuesday5288%
Wednesday5288%
Thursday5090%
Friday5287%
Saturday5279%
Sunday5269%

Why it was late

Airline (crew, maintenance, ops) 39%Air traffic & airport (NAS) 26%Late inbound plane 23%Severe weather 12%

All flights ATL → TPA · Connecting off DL 1099? Check the risk

Questions

How often is DL 1099 from TPA to ATL late?

Delta Air Lines 1099 from Tampa, FL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 21% of 364 scheduled flights between September 2025 and August 2026. 2.2% were cancelled.

How often is DL 1099 from ATL to TPA late?

Delta Air Lines 1099 from Atlanta, GA to Tampa, FL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 363 scheduled flights between September 2025 and August 2026. 1.9% 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.