About 1 in 6 DL 4119 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (17%); 1.9% were cancelled. The typical flight landed 10 minutes early.
DL 4119: LAX → PHX
Scheduled to leave Los Angeles at 7:20 a.m. local time, operated by SkyWest as OO 4119. Over the past year it arrived on time 83% of the time (362 flights), better than other DL flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 81% |
| Tuesday | 52 | 87% |
| Wednesday | 52 | 90% |
| Thursday | 52 | 77% |
| Friday | 51 | 80% |
| Saturday | 51 | 80% |
| Sunday | 51 | 86% |
Why it was late
All flights LAX → PHX · Connecting off DL 4119? Check the risk
DL 4119: PHX → LAX
Scheduled to leave Phoenix at 10:45 a.m. local time, operated by SkyWest as OO 4119. Over the past year it arrived on time 88% of the time (359 flights), in line with other DL flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 83% |
| Tuesday | 52 | 88% |
| Wednesday | 52 | 87% |
| Thursday | 51 | 92% |
| Friday | 50 | 86% |
| Saturday | 50 | 92% |
| Sunday | 51 | 90% |
Why it was late
All flights PHX → LAX · Connecting off DL 4119? Check the risk
Questions
How often is DL 4119 from LAX to PHX late?
Delta Air Lines 4119 from Los Angeles, CA to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 17% of 362 scheduled flights between September 2025 and August 2026. 1.9% were cancelled.
How often is DL 4119 from PHX to LAX late?
Delta Air Lines 4119 from Phoenix, AZ to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 12% of 359 scheduled flights between September 2025 and August 2026. 1.9% 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.