Flight OddsAS1631 SFO → EWR
Alaska Airlines · San Francisco, CA to Newark, NJ · 35 flights observed, 2026-03-18 to 2026-04-21 · 2,565 mi
AS1631 covers more than one route in the data window — the stats below are for SFO → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
97%
Median delay
-16 min
90th percentile
-8 min
Cancellation rate
0%
How often is AS1631 on time?
Across 35 flights on SFO → EWR from 2026-03-18 to 2026-04-21, AS1631 arrived within 15 minutes of schedule 97% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived -8 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 | 34 | 97% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 14 | 100% | -21 min |
| 2026-04 | 21 | 95% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 100% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…