About 1 in 8 DL 4077 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.0% were cancelled. The typical flight landed 10 minutes early.
DL 4077: LAX → PHX
Scheduled to leave Los Angeles at 5:41 p.m. local time, operated by SkyWest as OO 4077. Over the past year it arrived on time 87% of the time (216 flights), in line with other DL flights on the route at that hour (86%). Last seen in the data Aug 30, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 33 | 79% |
| Tuesday | 29 | 93% |
| Wednesday | 29 | 90% |
| Thursday | 32 | 88% |
| Friday | 32 | 88% |
| Saturday | 30 | 90% |
| Sunday | 31 | 84% |
Why it was late
All flights LAX → PHX · Connecting off DL 4077? Check the risk
DL 4077: PHX → LAX
Scheduled to leave Phoenix at 7:50 p.m. local time, operated by SkyWest as OO 4077. Over the past year it arrived on time 81% of the time (175 flights), in line with other DL flights on the route at that hour (78%). Last seen in the data Aug 30, 2026.
Usually Delta Air Lines's last flight of the day from Phoenix to Los Angeles (98% of days). Delta Air Lines's last PHX–LAX flight was cancelled 0.0% of the time, against 0.7% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 6:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 31 | 61% |
| Tuesday | 27 | 93% |
| Wednesday | 25 | 96% |
| Thursday | 28 | 79% |
| Friday | 30 | 83% |
| Saturday | 6 | — |
| Sunday | 28 | 79% |
Why it was late
All flights PHX → LAX · Connecting off DL 4077? Check the risk
Questions
How often is DL 4077 from LAX to PHX late?
Delta Air Lines 4077 from Los Angeles, CA to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 13% of 216 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
How often is DL 4077 from PHX to LAX late?
Delta Air Lines 4077 from Phoenix, AZ to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 19% of 175 scheduled flights between September 2025 and August 2026. 0.0% 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.