ON TIMEBOARD

DL 1715 on time

Delta Air Lines 1715: San Francisco to Los Angeles at 10:40 a.m.; Los Angeles to San Francisco at 8:30 a.m. (past 12 months). Figures below the title are for SFO → LAX, its busiest leg

On time
55%
299 flights · likely 50–61%
Cancelled
1.7%
of scheduled flights
Typical arrival
+9 min
median vs schedule
When late
+54 min
average delay
Similar flights
51%
DL, same route & hour

About 1 in 2 DL 1715 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (45%); 1.7% were cancelled. The typical flight landed 9 minutes late.

DL 1715: SFO → LAX

Scheduled to leave San Francisco at 10:40 a.m. local time. Over the past year it arrived on time 55% of the time (299 flights), better than other DL flights on the route at that hour (51%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Sep 2025: 60% on time (30 flights)60SepOct 2025: 65% on time (31 flights)65OctNov 2025: 50% on time (30 flights)50NovDec 2025: 58% on time (19 flights)58DecJan 2026: too few flights (13 flights)JanFeb 2026: too few flights (11 flights)FebMar 2026: 86% on time (21 flights)86MarApr 2026: 39% on time (28 flights)39AprMay 2026: 35% on time (31 flights)35MayJun 2026: 56% on time (27 flights)56JunJul 2026: 33% on time (27 flights)33JulAug 2026: 55% on time (31 flights)55Aug

By day of week

DayFlightsOn time
Monday4551%
Tuesday4459%
Wednesday4459%
Thursday4342%
Friday4347%
Saturday3768%
Sunday4363%

Why it was late

Late inbound plane 79%Air traffic & airport (NAS) 12%Airline (crew, maintenance, ops) 9%

All flights SFO → LAX · Connecting off DL 1715? Check the risk

DL 1715: LAX → SFO

Scheduled to leave Los Angeles at 8:30 a.m. local time. Over the past year it arrived on time 47% of the time (297 flights), in line with other DL flights on the route at that hour (49%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Sep 2025: 50% on time (30 flights)50SepOct 2025: 61% on time (31 flights)61OctNov 2025: 33% on time (30 flights)33NovDec 2025: 37% on time (19 flights)37DecJan 2026: too few flights (11 flights)JanFeb 2026: too few flights (11 flights)FebMar 2026: 81% on time (21 flights)81MarApr 2026: 32% on time (28 flights)32AprMay 2026: 29% on time (31 flights)29MayJun 2026: 44% on time (27 flights)44JunJul 2026: 37% on time (27 flights)37JulAug 2026: 45% on time (31 flights)45Aug

By day of week

DayFlightsOn time
Monday4547%
Tuesday4450%
Wednesday4450%
Thursday4337%
Friday4344%
Saturday3557%
Sunday4347%

Why it was late

Air traffic & airport (NAS) 71%Airline (crew, maintenance, ops) 26%Late inbound plane 2%Severe weather 1%

All flights LAX → SFO · Connecting off DL 1715? Check the risk

Questions

How often is DL 1715 from SFO to LAX late?

Delta Air Lines 1715 from San Francisco, CA to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 45% of 299 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.

How often is DL 1715 from LAX to SFO late?

Delta Air Lines 1715 from Los Angeles, CA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 53% of 297 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.