Flight Reliability
AS 1377 · Alaska Airlines
Nashville → Portland (BNA–PDX)
75
Usually Fine
WanderNerd Reliability Score
- 69%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.6%
- Cancelled
- 3 min early
- Median arrival delay
Based on 171 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 1377 arrived on time 91% of the time on Wednesdays and just 59% on Sundays. That gap is worth planning around.
A bit behind the BNA–PDX route.
AS 1377 arrived on time 69% of the time, versus 73% across the BNA–PDX route.
Lagging the Alaska Airlines network.
AS 1377 arrived on time 69% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 1377 arrived on time 76% of the time over the last three months in the data, compared with 69% in the three months before that.
The breakdown
- Mon60%(25 flights)
- Tue69%(26 flights)
- Wed91%(21 flights)
- Thu68%(25 flights)
- Fri68%(25 flights)
- Sat76%(21 flights)
- Sun59%(27 flights)
77%
May
Nov 55% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 55% | 29 |
| December 2025 | 60% | 30 |
| February 2026 | 92% | 12 |
| March 2026 | 74% | 27 |
| April 2026 | 77% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 77%
- Diverted
- 0%
- Flights flown
- 170
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 171 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.