About 1 in 7 DL 4177 flights from Austin arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.3% were cancelled. The typical flight landed 9 minutes early.
DL 4177: AUS → MFE
Scheduled to leave Austin at 10:30 a.m. local time, operated by SkyWest as OO 4177. Over the past year it arrived on time 85% of the time (364 flights), in line with other DL flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 89% |
| Tuesday | 52 | 90% |
| Wednesday | 52 | 83% |
| Thursday | 52 | 85% |
| Friday | 52 | 85% |
| Saturday | 51 | 80% |
| Sunday | 52 | 83% |
Why it was late
All flights AUS → MFE · Connecting off DL 4177? Check the risk
Questions
How often is DL 4177 from AUS to MFE late?
Delta Air Lines 4177 from Austin, TX to Mission/McAllen/Edinburg, TX arrived 15 or more minutes late, was diverted or was cancelled on 15% of 364 scheduled flights between September 2025 and August 2026. 0.3% 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.