About 1 in 5 DL 1277 flights from Salt Lake City arrived 15+ minutes late, diverted or cancelled over the past year (20%); 0.8% were cancelled. The typical flight landed 6 minutes early.
DL 1277: SLC → SNA
Scheduled to leave Salt Lake City at 3:15 p.m. local time. Over the past year it arrived on time 80% of the time (358 flights), in line with other DL flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 52 | 81% |
| Tuesday | 51 | 94% |
| Wednesday | 51 | 90% |
| Thursday | 50 | 72% |
| Friday | 51 | 71% |
| Saturday | 51 | 80% |
| Sunday | 52 | 75% |
Why it was late
All flights SLC → SNA · Connecting off DL 1277? Check the risk
DL 1277: SNA → SLC
Scheduled to leave Santa Ana at 5:03 p.m. local time. Over the past year it arrived on time 83% of the time (334 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 49 | 84% |
| Tuesday | 48 | 92% |
| Wednesday | 48 | 83% |
| Thursday | 46 | 72% |
| Friday | 47 | 83% |
| Saturday | 47 | 89% |
| Sunday | 49 | 80% |
Why it was late
All flights SNA → SLC · Connecting off DL 1277? Check the risk
Questions
How often is DL 1277 from SLC to SNA late?
Delta Air Lines 1277 from Salt Lake City, UT to Santa Ana, CA arrived 15 or more minutes late, was diverted or was cancelled on 20% of 358 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.
How often is DL 1277 from SNA to SLC late?
Delta Air Lines 1277 from Santa Ana, CA to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 17% of 334 scheduled flights between September 2025 and August 2026. 0.9% 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.