Flight number record
AS 1376
Alaska Airlines · Portland to Nashville
- Route
- PDX → BNA
- Departs
- 10:30
- Flights
- 262
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 1376, check with Alaska Airlines.
AS 1376 lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 40 minutes on average. That rests on 262 flights, with a median arrival 5 minutes early.
Key figures
On time
79.7%
Arrivals under 15 minutes late, of 261 completed flights
Avg delay
38 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
2.7%
National rate is 8.3%
These figures cover 262 flights between September 2025 and August 2026. The median arrival is 5 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When AS 1376 flies
AS 1376 flies PDX to BNA without a single fixed slot. Its most common scheduled departure was 10:30, used on 139 of 262 flights, with 11:17 (35 flights) and 11:40 (28 flights) next.
- Departs 10:30139 flights53.1%
- Departs 11:1735 flights13.4%
- Departs 11:4028 flights10.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 10:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 1376 runs 4 points worse at 79.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AS 1376 next to PDX to BNA
Every carrier on PDX to BNA combined arrived on time 78.5% of the time across 317 flights, so AS 1376 is about level with it. Across its whole network Alaska Airlines managed 79.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 1376thin sample | 262 | 79.7% | 38 min | 0.00% | B+ |
| All Alaska Airlines on PDX–BNAthin sample | 317 | 78.5% | 37 min | 0.00% | B+ |
| All carriers on PDX–BNAthin sample | 317 | 78.5% | 37 min | 0.00% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 1376 quarter by quarter
AS 1376 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.4% on time and its weakest Oct–Dec 2025 at 70.8%, a swing of 14 points on roughly 66 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Oct–Dec 202565 flights70.8%
- Jan–Mar 202645 flights84.4%
- Apr–Jun 202691 flights82.4%
- Jul–Sep 202661 flights81.7%
Scale runs 60% to 90%.
By weekday, AS 1376 did best on Wednesday at 94.1% on time and worst on Saturday at 69.7%. Each day rests on about 37 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 1376 runs when it is late
AS 1376 often beats the schedule: 71 of 261 completed flights, 27%, arrived 15 minutes or more early. Most of the lateness is short. 27 of the 53 late arrivals were under half an hour behind, and 7 reached an hour or more.
- 15+ min early71 flights27.2%
- Within 15 min137 flights52.5%
- 15–29 min late27 flights10.3%
- 30–59 min late19 flights7.3%
- 1–2 hours late6 flights2.3%
- 2+ hours late1 flights0.4%
Scale runs 0% to 100%.
Share of 261 completed flights by arrival against schedule.
9 of 33 late departures made up the time and arrived on time, 27% of them. In the other direction, 29 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BNA.
The worst days
Worst days for AS 1376
The latest arrival of the period was on 1 August 2026, 2 hours 7 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across August, November, May and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 1 August 2026 | 2 hours 7 minutes | Late-arriving aircraft |
| 15 November 2025 | 1 hour 30 minutes | Carrier |
| 29 November 2025 | 1 hour 25 minutes | National Airspace System |
| 26 May 2026 | 1 hour 19 minutes | Late-arriving aircraft |
| 30 March 2026 | 1 hour 14 minutes | Carrier |
Delay causes
Why AS 1376 runs late
National Airspace System accounts for 50% of the 1,989 delay minutes carriers reported here, and the remaining four split what is left.
- 50%National Airspace System
- 33%Carrier
- 17%Late-arriving aircraft
50% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 991 minutes out of 1,989, against a national NAS share of 21%. The split is drawn from 1,989 delay minutes reported on AS 1376.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 1,973 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 262 flights under AS 1376 in the data flew PDX to BNA. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 262 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AS 1376
For a booking, read AS 1376 as 79.7% on time with 0.00% cancelled over 262 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- Portland International (PDX) delay statistics
- Nashville International (BNA) delay statistics
- Alaska Airlines on-time record
- Every Alaska Airlines flight number with a record
- The most and least reliable flight numbers in the US
- The best time of day to fly, according to 7.05 million flight records
A flight number here means Alaska Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.