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Delta Air Lines / JFK → MIA

DL 1514 on time

Delta Air Lines 1514: New York to Miami at 11:10 a.m.; Miami to New York at 3:37 p.m. (past 12 months). Figures below the title are for JFK → MIA, its busiest leg

On time
74%
364 flights · likely 70–79%
Cancelled
3.0%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+62 min
average delay
Similar flights
74%
DL, same route & hour

About 1 in 4 DL 1514 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (26%); 3.0% were cancelled. The typical flight landed 8 minutes early.

DL 1514: JFK → MIA

Scheduled to leave New York at 11:10 a.m. local time. Over the past year it arrived on time 74% of the time (364 flights), in line with other DL flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 77% on time (30 flights)77SepOct 2025: 74% on time (31 flights)74OctNov 2025: 77% on time (30 flights)77NovDec 2025: 63% on time (30 flights)63DecJan 2026: 68% on time (31 flights)68JanFeb 2026: 61% on time (28 flights)61FebMar 2026: 74% on time (31 flights)74MarApr 2026: 90% on time (30 flights)90AprMay 2026: 94% on time (31 flights)94MayJun 2026: 90% on time (30 flights)90JunJul 2026: 55% on time (31 flights)55JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday5375%
Tuesday5269%
Wednesday5285%
Thursday5281%
Friday5281%
Saturday5173%
Sunday5258%

Why it was late

Air traffic & airport (NAS) 44%Airline (crew, maintenance, ops) 41%Late inbound plane 12%Severe weather 4%

All flights JFK → MIA · Connecting off DL 1514? Check the risk

DL 1514: MIA → JFK

Scheduled to leave Miami at 3:37 p.m. local time. Over the past year it arrived on time 66% of the time (254 flights), in line with other DL flights on the route at that hour (69%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 70% on time (30 flights)70AprMay 2025: 68% on time (31 flights)68MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (11 flights)DecJan 2026: 68% on time (31 flights)68JanFeb 2026: 46% on time (28 flights)46FebMar 2026: 74% on time (31 flights)74MarApr 2026: 87% on time (30 flights)87AprMay 2026: 87% on time (31 flights)87MayJun 2026: 70% on time (30 flights)70JunJul 2026: 55% on time (31 flights)55JulAug 2026: 45% on time (31 flights)45Aug

By day of week

DayFlightsOn time
Monday3770%
Tuesday3661%
Wednesday3675%
Thursday3681%
Friday3667%
Saturday3658%
Sunday3751%

Why it was late

Air traffic & airport (NAS) 39%Late inbound plane 29%Airline (crew, maintenance, ops) 28%Severe weather 3%

All flights MIA → JFK · Connecting off DL 1514? Check the risk

Questions

How often is DL 1514 from JFK to MIA late?

Delta Air Lines 1514 from New York, NY to Miami, FL arrived 15 or more minutes late, was diverted or was cancelled on 26% of 364 scheduled flights between September 2025 and August 2026. 3.0% were cancelled.

How often is DL 1514 from MIA to JFK late?

Delta Air Lines 1514 from Miami, FL to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 34% of 254 scheduled flights between September 2025 and August 2026. 4.3% 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.