Flight number record
AS 783
Alaska Airlines · Atlanta to Portland
- Route
- ATL → PDX
- Departs
- 18:00
- Flights
- 286
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 783, check with Alaska Airlines.
AS 783 lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 286 flights, with a median arrival 9 minutes early.
Set against the rest of the country, AS 783's record is 5 points better than the US average of 77.3%. That gap is worth roughly 51 fewer late arrivals for every thousand flights.
Key figures
On time
82.4%
Arrivals under 15 minutes late, of 284 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.70%
National rate is 1.89%
1 hour+ late
7.4%
National rate is 8.3%
These figures cover 286 flights between September 2025 and August 2026. The median arrival is 9 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 783 flies
AS 783 flies ATL to PDX without a single fixed slot. Its most common scheduled departure was 18:00, used on 70 of 286 flights, with 18:08 (33 flights) and 18:21 (33 flights) next.
- Departs 18:0070 flights24.5%
- Departs 18:0833 flights11.5%
- Departs 18:2133 flights11.5%
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 18:00 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and AS 783 runs 14 points better at 82.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
AS 783 next to ATL to PDX
Every carrier on ATL to PDX combined arrived on time 78.4% of the time across 1,545 flights, so AS 783 is 4 points ahead of it. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 783thin sample | 286 | 82.4% | 66 min | 0.70% | B+ |
| All Alaska Airlines on ATL–PDXthin sample | 286 | 82.4% | 66 min | 0.70% | B+ |
| All carriers on ATL–PDX | 1,545 | 78.4% | 50 min | 0.91% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 783 quarter by quarter
AS 783 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Oct–Dec 2025 at 76.9%, a swing of 16 points on roughly 72 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.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202591 flights76.9%
- Jan–Mar 202618 flights—
- Apr–Jun 202685 flights84.5%
- Jul–Sep 202662 flights78.7%
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, AS 783 did best on Thursday at 90.0% on time and worst on Friday at 73.2%. Each day rests on about 41 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 783 runs when it is late
AS 783 often beats the schedule: 110 of 284 completed flights, 39%, arrived 15 minutes or more early. The 50 late arrivals split 19 under half an hour, 10 between 30 and 60 minutes, and 21 an hour or more.
- 15+ min early110 flights38.7%
- Within 15 min124 flights43.7%
- 15–29 min late19 flights6.7%
- 30–59 min late10 flights3.5%
- 1–2 hours late10 flights3.5%
- 2+ hours late11 flights3.9%
Scale runs 0% to 100%.
Share of 284 completed flights by arrival against schedule.
A late pushback is often recovered here: of 72 departures that left 15 minutes late or more, 31 still arrived on time. 9 flights left on time and still arrived late.
The worst days
Worst days for AS 783
The latest arrival of the period was on 3 January 2026, 3 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 January 2026 | 3 hours 51 minutes | Carrier |
| 7 June 2026 | 3 hours 4 minutes | Late-arriving aircraft |
| 24 May 2026 | 3 hours | Late-arriving aircraft |
| 5 December 2025 | 2 hours 51 minutes | Late-arriving aircraft |
| 10 June 2026 | 2 hours 9 minutes | Late-arriving aircraft |
Delay causes
Why AS 783 runs late
Late-arriving aircraft accounts for 57% of the 3,278 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Late-arriving aircraft
- 19%National Airspace System
- 16%Carrier
- 4%Security
- 4%Extreme weather
57% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,278 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 3,278 delay minutes reported on AS 783.
Cancellations are rare at 0.70%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
7.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 2,172 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.
The same number turns up on one other city pair in the data, including DEN to SEA (34), but none flew often enough under AS 783 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to PDX only.
One caution: this is a thin sample. 286 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 783
For a booking, read AS 783 as 82.4% on time with 0.70% cancelled over 286 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to PDX, every carrier and departure
- PDX to ATL, the return direction
- Delta Air Lines 539 on the same route83.2%
- Delta Air Lines 503 on the same route72.8%
- Delta Air Lines 478 on the same route72.7%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Portland International (PDX) 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
- Why the first flight of the morning is statistically safest
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.