ON TIMEBOARD

DL 1412 on time

Delta Air Lines 1412: San Francisco to Seattle at 1:45 p.m.; Seattle to San Francisco at 10:25 a.m. (past 12 months). Figures below the title are for SFO → SEA, its busiest leg

On time
73%
346 flights · likely 68–77%
Cancelled
1.5%
of scheduled flights
Typical arrival
−3 min
median vs schedule
When late
+76 min
average delay
Similar flights
70%
DL, same route & hour

About 1 in 4 DL 1412 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (27%); 1.5% were cancelled. The typical flight landed 3 minutes early.

DL 1412: SFO → SEA

Scheduled to leave San Francisco at 1:45 p.m. local time. Over the past year it arrived on time 73% of the time (346 flights), in line with other DL flights on the route at that hour (70%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 73% on time (30 flights)73SepOct 2025: 73% on time (30 flights)73OctNov 2025: 82% on time (28 flights)82NovDec 2025: 74% on time (19 flights)74DecJan 2026: 78% on time (27 flights)78JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 90% on time (31 flights)90MarApr 2026: 77% on time (30 flights)77AprMay 2026: 58% on time (31 flights)58MayJun 2026: 77% on time (30 flights)77JunJul 2026: 71% on time (31 flights)71JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday5176%
Tuesday5074%
Wednesday5074%
Thursday4959%
Friday4877%
Saturday4978%
Sunday4971%

Why it was late

Late inbound plane 61%Airline (crew, maintenance, ops) 27%Air traffic & airport (NAS) 12%

All flights SFO → SEA · Connecting off DL 1412? Check the risk

DL 1412: SEA → SFO

Scheduled to leave Seattle at 10:25 a.m. local time. Over the past year it arrived on time 59% of the time (346 flights), in line with other DL flights on the route at that hour (58%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Sep 2025: 73% on time (30 flights)73SepOct 2025: 53% on time (30 flights)53OctNov 2025: 75% on time (28 flights)75NovDec 2025: 58% on time (19 flights)58DecJan 2026: 74% on time (27 flights)74JanFeb 2026: 54% on time (28 flights)54FebMar 2026: 87% on time (31 flights)87MarApr 2026: 73% on time (30 flights)73AprMay 2026: 42% on time (31 flights)42MayJun 2026: 40% on time (30 flights)40JunJul 2026: 32% on time (31 flights)32JulAug 2026: 52% on time (31 flights)52Aug

By day of week

DayFlightsOn time
Monday5155%
Tuesday5066%
Wednesday5066%
Thursday4949%
Friday4854%
Saturday4963%
Sunday4961%

Why it was late

Air traffic & airport (NAS) 47%Airline (crew, maintenance, ops) 33%Late inbound plane 17%Severe weather 3%

All flights SEA → SFO · Connecting off DL 1412? Check the risk

Questions

How often is DL 1412 from SFO to SEA late?

Delta Air Lines 1412 from San Francisco, CA to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 27% of 346 scheduled flights between September 2025 and August 2026. 1.5% were cancelled.

How often is DL 1412 from SEA to SFO late?

Delta Air Lines 1412 from Seattle, WA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 41% of 346 scheduled flights between September 2025 and August 2026. 1.5% 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.