ON TIMEBOARD

DL 1670 on time

Delta Air Lines 1670: Atlanta to Fort Lauderdale at 5:45 p.m.; Fort Lauderdale to Atlanta at 8:45 p.m. (past 12 months). Figures below the title are for ATL → FLL, its busiest leg

On time
59%
255 flights · likely 53–65%
Cancelled
2.4%
of scheduled flights
Typical arrival
+7 min
median vs schedule
When late
+62 min
average delay
Similar flights
66%
DL, same route & hour

About 1 in 2 DL 1670 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (41%); 2.4% were cancelled. The typical flight landed 7 minutes late.

DL 1670: ATL → FLL

Scheduled to leave Atlanta at 5:45 p.m. local time. Over the past year it arrived on time 59% of the time (255 flights), worse than other DL flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%May 2025: 58% on time (31 flights)58MayJun 2025: 33% on time (18 flights)33JunJul 2025: too few flights (5 flights)JulDec 2025: too few flights (12 flights)DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 52% on time (31 flights)52MarApr 2026: 73% on time (30 flights)73AprMay 2026: 68% on time (31 flights)68MayJun 2026: 60% on time (30 flights)60JunJul 2026: 35% on time (31 flights)35JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday3762%
Tuesday3675%
Wednesday3675%
Thursday3658%
Friday3650%
Saturday3759%
Sunday3735%

Why it was late

Airline (crew, maintenance, ops) 43%Late inbound plane 26%Air traffic & airport (NAS) 23%Severe weather 8%

All flights ATL → FLL · Connecting off DL 1670? Check the risk

DL 1670: FLL → ATL

Scheduled to leave Fort Lauderdale at 8:45 p.m. local time. Over the past year it arrived on time 68% of the time (138 flights), in line with other DL flights on the route at that hour (71%). Last seen in the data Aug 30, 2026.

Usually Delta Air Lines's last flight of the day from Fort Lauderdale to Atlanta (80% of days). Delta Air Lines's last FLL–ATL flight was cancelled 2.7% of the time, against 1.8% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 5:25 a.m. the next morning.

Month by month

40%70%100%Mar 2025: 56% on time (18 flights)56MarApr 2025: 56% on time (16 flights)56AprMay 2025: too few flights (4 flights)MayDec 2025: too few flights (9 flights)DecJan 2026: too few flights (14 flights)JanFeb 2026: 77% on time (22 flights)77FebMar 2026: 63% on time (27 flights)63MarApr 2026: too few flights (10 flights)AprMay 2026: too few flights (14 flights)MayJun 2026: too few flights (3 flights)JunJul 2026: 59% on time (22 flights)59JulAug 2026: 65% on time (17 flights)65Aug

By day of week

DayFlightsOn time
Monday2564%
Tuesday18—
Wednesday16—
Thursday2576%
Friday2763%
Saturday3—
Sunday2458%

Why it was late

Late inbound plane 76%Airline (crew, maintenance, ops) 19%Air traffic & airport (NAS) 5%Severe weather 1%

All flights FLL → ATL · Connecting off DL 1670? Check the risk

Questions

How often is DL 1670 from ATL to FLL late?

Delta Air Lines 1670 from Atlanta, GA to Fort Lauderdale, FL arrived 15 or more minutes late, was diverted or was cancelled on 41% of 255 scheduled flights between September 2025 and August 2026. 2.4% were cancelled.

How often is DL 1670 from FLL to ATL late?

Delta Air Lines 1670 from Fort Lauderdale, FL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 32% of 138 scheduled flights between September 2025 and August 2026. 5.8% 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.