Flight OddsWN3857 BOS → AUS
Southwest Airlines · Boston, MA to Austin, TX · 50 flights observed, 2026-04-07 to 2026-06-03 · 1,698 mi
WN3857 covers more than one route in the data window — the stats below are for BOS → AUS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
+2 min
90th percentile
+32 min
Cancellation rate
0%
How often is WN3857 on time?
Across 50 flights on BOS → AUS from 2026-04-07 to 2026-06-03, WN3857 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +32 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 35 | 70% |
| 16-30 min | 6 | 12% |
| 31-60 min | 6 | 12% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 21 | 67% | +5 min |
| 2026-05 | 26 | 69% | +15 min |
| 2026-06 | 3 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 9 | 67% |
| Wed | 9 | 67% |
| Thu | 8 | 75% |
| Fri | 8 | 88% |
| Sat | No data | — |
| Sun | 8 | 38% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…