Flight Reliability
AS 1319 · Alaska Airlines
Boston → Portland (BOS–PDX)
73
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.8%
- Cancelled
- 4 min early
- Median arrival delay
Based on 328 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 1319 arrived on time 81% of the time on Wednesdays. On Fridays: 67%.
A bit behind the BOS–PDX route.
AS 1319 arrived on time 72% of the time, versus 76% across the BOS–PDX route.
Lagging the Alaska Airlines network.
AS 1319 arrived on time 72% of the time, versus 80% across the Alaska Airlines network.
Slipping a little lately.
AS 1319 arrived on time 69% of the time over the last three months in the data, compared with 74% in the three months before that.
The breakdown
- Mon72%(47 flights)
- Tue69%(45 flights)
- Wed81%(48 flights)
- Thu68%(50 flights)
- Fri67%(49 flights)
- Sat79%(33 flights)
- Sun72%(50 flights)
77%
May
Jun 79% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 19 |
| July 2025 | 70% | 30 |
| August 2025 | 90% | 29 |
| September 2025 | 73% | 26 |
| October 2025 | 62% | 29 |
| November 2025 | 69% | 26 |
| December 2025 | 60% | 30 |
| January 2026 | 76% | 25 |
| February 2026 | 86% | 21 |
| March 2026 | 50% | 26 |
| April 2026 | 80% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 322
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 328 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.