ON TIMEBOARD
Delta Air Lines / LGA → DCA

DL 5742 on time

Delta Air Lines 5742: New York to Washington at 8:50 a.m.; Washington to New York at 11:00 a.m. (past 12 months). Figures below the title are for LGA → DCA, its busiest leg

On time
80%
252 flights · likely 75–85%
Cancelled
3.2%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+58 min
average delay
Similar flights
81%
DL, same route & hour

About 1 in 5 DL 5742 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (20%); 3.2% were cancelled. The typical flight landed 8 minutes early.

DL 5742: LGA → DCA

Scheduled to leave New York at 8:50 a.m. local time, operated by Republic Airways as YX 5742. Over the past year it arrived on time 80% of the time (252 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%Apr 2025: 83% on time (30 flights)83AprMay 2025: 84% on time (31 flights)84MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 74% on time (31 flights)74MarApr 2026: 87% on time (30 flights)87AprMay 2026: 81% on time (31 flights)81MayJun 2026: 83% on time (30 flights)83JunJul 2026: 66% on time (29 flights)66JulAug 2026: 80% on time (30 flights)80Aug

By day of week

DayFlightsOn time
Monday3770%
Tuesday3675%
Wednesday3692%
Thursday3683%
Friday3580%
Saturday3681%
Sunday3681%

Why it was late

Airline (crew, maintenance, ops) 40%Air traffic & airport (NAS) 35%Late inbound plane 25%Security 1%

All flights LGA → DCA · Connecting off DL 5742? Check the risk

DL 5742: DCA → LGA

Scheduled to leave Washington at 11:00 a.m. local time, operated by Republic Airways as YX 5742. Over the past year it arrived on time 72% of the time (203 flights), worse than other DL flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2024: 89% on time (19 flights)89SepOct 2024: too few flights (5 flights)OctDec 2024: too few flights (2 flights)DecJan 2025: too few flights (1 flights)JanJan 2026: 83% on time (23 flights)83JanFeb 2026: 63% on time (24 flights)63FebMar 2026: 53% on time (30 flights)53MarApr 2026: too few flights (12 flights)AprMay 2026: 76% on time (25 flights)76MayJun 2026: 77% on time (30 flights)77JunJul 2026: 66% on time (29 flights)66JulAug 2026: 87% on time (30 flights)87Aug

By day of week

DayFlightsOn time
Monday3161%
Tuesday3067%
Wednesday3080%
Thursday3181%
Friday3073%
Saturday2171%
Sunday3070%

Why it was late

Air traffic & airport (NAS) 42%Late inbound plane 31%Airline (crew, maintenance, ops) 27%Severe weather 1%

All flights DCA → LGA · Connecting off DL 5742? Check the risk

Questions

How often is DL 5742 from LGA to DCA late?

Delta Air Lines 5742 from New York, NY to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 20% of 252 scheduled flights between September 2025 and August 2026. 3.2% were cancelled.

How often is DL 5742 from DCA to LGA late?

Delta Air Lines 5742 from Washington, DC to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 28% of 203 scheduled flights between September 2025 and August 2026. 6.4% 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.