About 1 in 11 DL 3876 flights from Austin arrived 15+ minutes late, diverted or cancelled over the past year (9%); 0.4% were cancelled. The typical flight landed 16 minutes early.
DL 3876: AUS → DEN
Scheduled to leave Austin at 7:40 a.m. local time, operated by SkyWest as OO 3876. Over the past year it arrived on time 91% of the time (239 flights), in line with other DL flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 86% |
| Tuesday | 34 | 85% |
| Wednesday | 34 | 91% |
| Thursday | 34 | 94% |
| Friday | 34 | 88% |
| Saturday | 34 | 97% |
| Sunday | 34 | 94% |
Why it was late
All flights AUS → DEN · Connecting off DL 3876? Check the risk
DL 3876: DEN → AUS
Scheduled to leave Denver at 9:55 a.m. local time, operated by SkyWest as OO 3876. Over the past year it arrived on time 83% of the time (239 flights), in line with other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 77% |
| Tuesday | 34 | 76% |
| Wednesday | 34 | 82% |
| Thursday | 34 | 91% |
| Friday | 34 | 79% |
| Saturday | 34 | 91% |
| Sunday | 34 | 82% |
Why it was late
All flights DEN → AUS · Connecting off DL 3876? Check the risk
Questions
How often is DL 3876 from AUS to DEN late?
Delta Air Lines 3876 from Austin, TX to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 9% of 239 scheduled flights between September 2025 and August 2026. 0.4% were cancelled.
How often is DL 3876 from DEN to AUS late?
Delta Air Lines 3876 from Denver, CO to Austin, TX arrived 15 or more minutes late, was diverted or was cancelled on 17% of 239 scheduled flights between September 2025 and August 2026. 0.4% 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.