ON TIMEBOARD

DL 5157 on time

Delta Air Lines 5157: Monroe to Atlanta at 1:04 p.m.; Atlanta to Monroe at 11:43 a.m. (past 12 months). Figures below the title are for MLU → ATL, its busiest leg

On time
74%
349 flights · likely 69–78%
Cancelled
2.0%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+77 min
average delay
Similar flights
74%
DL, same route & hour

About 1 in 4 DL 5157 flights from Monroe arrived 15+ minutes late, diverted or cancelled over the past year (26%); 2.0% were cancelled. The typical flight landed 10 minutes early.

DL 5157: MLU → ATL

Scheduled to leave Monroe at 1:04 p.m. local time, operated by Endeavor Air as 9E 5157. Over the past year it arrived on time 74% of the time (349 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: 93% on time (30 flights)93SepOct 2025: 94% on time (31 flights)94OctNov 2025: 67% on time (30 flights)67NovDec 2025: 63% on time (19 flights)63DecJan 2026: 56% on time (27 flights)56JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 52% on time (31 flights)52MarApr 2026: 87% on time (30 flights)87AprMay 2026: 84% on time (31 flights)84MayJun 2026: 77% on time (30 flights)77JunJul 2026: 65% on time (31 flights)65JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday5161%
Tuesday5076%
Wednesday5082%
Thursday5072%
Friday5078%
Saturday4971%
Sunday4978%

Why it was late

Late inbound plane 62%Airline (crew, maintenance, ops) 27%Air traffic & airport (NAS) 9%Severe weather 2%

All flights MLU → ATL · Connecting off DL 5157? Check the risk

DL 5157: ATL → MLU

Scheduled to leave Atlanta at 11:43 a.m. local time, operated by Endeavor Air as 9E 5157. Over the past year it arrived on time 79% of the time (349 flights), in line with other DL flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 97% on time (30 flights)97SepOct 2025: 87% on time (31 flights)87OctNov 2025: 63% on time (30 flights)63NovDec 2025: 53% on time (19 flights)53DecJan 2026: 67% on time (27 flights)67JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 68% on time (31 flights)68MarApr 2026: 83% on time (30 flights)83AprMay 2026: 84% on time (31 flights)84MayJun 2026: 80% on time (30 flights)80JunJul 2026: 77% on time (31 flights)77JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday5169%
Tuesday5080%
Wednesday5082%
Thursday5080%
Friday5086%
Saturday4969%
Sunday4984%

Why it was late

Late inbound plane 45%Airline (crew, maintenance, ops) 40%Air traffic & airport (NAS) 13%Severe weather 3%

All flights ATL → MLU · Connecting off DL 5157? Check the risk

Questions

How often is DL 5157 from MLU to ATL late?

Delta Air Lines 5157 from Monroe, LA to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 26% of 349 scheduled flights between September 2025 and August 2026. 2.0% were cancelled.

How often is DL 5157 from ATL to MLU late?

Delta Air Lines 5157 from Atlanta, GA to Monroe, LA arrived 15 or more minutes late, was diverted or was cancelled on 21% of 349 scheduled flights between September 2025 and August 2026. 2.3% 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.