Flight OddsWN551 AUS → BOS
Southwest Airlines · Austin, TX to Boston, MA · 32 flights observed, 2026-04-09 to 2026-06-01 · 1,698 mi
WN551 covers more than one route in the data window — the stats below are for AUS → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
50%
Median delay
+16 min
90th percentile
+62 min
Cancellation rate
0%
How often is WN551 on time?
Across 32 flights on AUS → BOS from 2026-04-09 to 2026-06-01, WN551 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +62 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 | 16 | 50% |
| 16-30 min | 5 | 16% |
| 31-60 min | 6 | 19% |
| 61-120 min | 5 | 16% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 13 | 23% | +28 min |
| 2026-05 | 18 | 67% | +22 min |
| 2026-06 | 1 | 100% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 8 | 25% |
| Fri | 8 | 63% |
| Sat | No data | — |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…