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Delta Air Lines / LGA → PWM

DL 5346 on time

Delta Air Lines 5346: New York to Portland at 11:00 a.m.; Portland to New York at 1:12 p.m. (past 12 months). Figures below the title are for LGA → PWM, its busiest leg

On time
74%
165 flights · likely 67–80%
Cancelled
2.4%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+80 min
average delay
Similar flights
75%
DL, same route & hour

About 1 in 4 DL 5346 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (26%); 2.4% were cancelled. The typical flight landed 7 minutes early.

DL 5346: LGA → PWM

Scheduled to leave New York at 11:00 a.m. local time, operated by Endeavor Air as 9E 5346. Over the past year it arrived on time 74% of the time (165 flights), in line with other DL flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 80% on time (15 flights)80AprMay 2025: 74% on time (23 flights)74MayJun 2025: 59% on time (29 flights)59JunJul 2025: 61% on time (31 flights)61JulAug 2025: 90% on time (31 flights)90AugSep 2025: 78% on time (27 flights)78SepOct 2025: 78% on time (27 flights)78OctNov 2025: too few flights (6 flights)NovMay 2026: 80% on time (25 flights)80MayJun 2026: 74% on time (27 flights)74JunJul 2026: 70% on time (27 flights)70JulAug 2026: 69% on time (26 flights)69Aug

By day of week

DayFlightsOn time
Monday2767%
Tuesday2665%
Wednesday2688%
Thursday2767%
Friday2781%
Saturday6—
Sunday2677%

Why it was late

Late inbound plane 40%Airline (crew, maintenance, ops) 31%Air traffic & airport (NAS) 29%

All flights LGA → PWM · Connecting off DL 5346? Check the risk

DL 5346: PWM → LGA

Scheduled to leave Portland at 1:12 p.m. local time, operated by Endeavor Air as 9E 5346. Over the past year it arrived on time 65% of the time (165 flights), in line with other DL flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 73% on time (15 flights)73AprMay 2025: 59% on time (27 flights)59MayJun 2025: 47% on time (30 flights)47JunJul 2025: 48% on time (31 flights)48JulAug 2025: 71% on time (31 flights)71AugSep 2025: 81% on time (27 flights)81SepOct 2025: 63% on time (27 flights)63OctNov 2025: too few flights (6 flights)NovMay 2026: 64% on time (25 flights)64MayJun 2026: 67% on time (27 flights)67JunJul 2026: 48% on time (27 flights)48JulAug 2026: 65% on time (26 flights)65Aug

By day of week

DayFlightsOn time
Monday2752%
Tuesday2665%
Wednesday2677%
Thursday2756%
Friday2785%
Saturday6—
Sunday2654%

Why it was late

Late inbound plane 48%Air traffic & airport (NAS) 25%Severe weather 20%Airline (crew, maintenance, ops) 8%

All flights PWM → LGA · Connecting off DL 5346? Check the risk

Questions

How often is DL 5346 from LGA to PWM late?

Delta Air Lines 5346 from New York, NY to Portland, ME arrived 15 or more minutes late, was diverted or was cancelled on 26% of 165 scheduled flights between September 2025 and August 2026. 2.4% were cancelled.

How often is DL 5346 from PWM to LGA late?

Delta Air Lines 5346 from Portland, ME to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 35% of 165 scheduled flights between September 2025 and August 2026. 2.4% 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.