AS1631
AS1631 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Portland to Newark. Of 86 departures recorded from March 2026 to July 2026, 80.2% left on time, according to the US BTS.
- On-time departures80.2%of 86 flights
- Average delay9.1 min
- July 202630
- Cancelled0.0%
- Legs flown under this number2
Recorded departures by month
Short series — AS1631 has only 4 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods4 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 14 | – |
| April | – | 21 | – |
| May | – | – | – |
| June | – | 21 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · March 2026 → July 2026
On-time departures by month
Short series — AS1631 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods4 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 85.7% | – |
| April | – | 95.2% | – |
| May | – | – | – |
| June | – | 85.7% | – |
| July | – | 63.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · March 2026 → July 2026
Average departure delay by month
Short series — AS1631 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · March 2026 → July 2026
Cancelled departures by month
Short series — AS1631 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods4 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · March 2026 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 100.0% 86
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Mar 18, 2026 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX EWR Portland International Airport – Newark Liberty International Airport | 3,907 | 13.7 min | 72.6% | 51 |
| SFO EWR San Francisco International Airport – Newark Liberty International Airport | 4,118 | 2.3 min | 91.4% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| March 2026 | 14 | 14 | 85.7% | 0 |
| April 2026 | 21 | 21 | 95.2% | 0 |
| June 2026 | 21 | 21 | 85.7% | 0 |
| July 2026 | 30 | 30 | 63.3% | 0 |