ON TIMEBOARD

DL 1390 on time

Delta Air Lines 1390: New York to Chicago at 4:00 p.m.; Chicago to New York at 7:05 p.m. (past 12 months). Figures below the title are for LGA → ORD, its busiest leg

On time
53%
219 flights · likely 46–59%
Cancelled
8.2%
of scheduled flights
Typical arrival
+9 min
median vs schedule
When late
+103 min
average delay
Similar flights
54%
DL, same route & hour

About 1 in 2 DL 1390 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (47%); 8.2% were cancelled. The typical flight landed 9 minutes late.

DL 1390: LGA → ORD

Scheduled to leave New York at 4:00 p.m. local time. Over the past year it arrived on time 53% of the time (219 flights), in line with other DL flights on the route at that hour (54%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Aug 2025: 77% on time (26 flights)77AugSep 2025: 77% on time (26 flights)77SepOct 2025: 48% on time (27 flights)48OctNov 2025: 36% on time (25 flights)36NovDec 2025: 35% on time (17 flights)35DecJan 2026: too few flights (2 flights)JanFeb 2026: too few flights (1 flights)FebApr 2026: 56% on time (16 flights)56AprMay 2026: 73% on time (26 flights)73MayJun 2026: 54% on time (26 flights)54JunJul 2026: 56% on time (27 flights)56JulAug 2026: 31% on time (26 flights)31Aug

By day of week

DayFlightsOn time
Monday3743%
Tuesday3661%
Wednesday3639%
Thursday3554%
Friday3566%
Saturday5—
Sunday3554%

Why it was late

Air traffic & airport (NAS) 41%Airline (crew, maintenance, ops) 33%Late inbound plane 24%Severe weather 2%

All flights LGA → ORD · Connecting off DL 1390? Check the risk

DL 1390: ORD → LGA

Scheduled to leave Chicago at 7:05 p.m. local time. Over the past year it arrived on time 51% of the time (195 flights), worse than other DL flights on the route at that hour (55%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Jun 2025: 29% on time (24 flights)29JunJul 2025: 45% on time (22 flights)45JulAug 2025: 81% on time (26 flights)81AugSep 2025: too few flights (9 flights)SepOct 2025: 35% on time (23 flights)35OctNov 2025: 36% on time (25 flights)36NovDec 2025: 29% on time (17 flights)29DecApr 2026: 75% on time (16 flights)75AprMay 2026: 69% on time (26 flights)69MayJun 2026: 50% on time (26 flights)50JunJul 2026: 56% on time (27 flights)56JulAug 2026: 42% on time (26 flights)42Aug

By day of week

DayFlightsOn time
Monday3447%
Tuesday3352%
Wednesday3342%
Thursday3152%
Friday3161%
Saturday2—
Sunday3155%

Why it was late

Late inbound plane 46%Airline (crew, maintenance, ops) 29%Air traffic & airport (NAS) 15%Severe weather 11%

All flights ORD → LGA · Connecting off DL 1390? Check the risk

Questions

How often is DL 1390 from LGA to ORD late?

Delta Air Lines 1390 from New York, NY to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 47% of 219 scheduled flights between September 2025 and August 2026. 8.2% were cancelled.

How often is DL 1390 from ORD to LGA late?

Delta Air Lines 1390 from Chicago, IL to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 49% of 195 scheduled flights between September 2025 and August 2026. 10.3% 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.