Flight number record
AS 778
Alaska Airlines · Portland to Las Vegas
- Route
- PDX → LAS
- Departs
- 14:30
- Flights
- 347
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 778, check with Alaska Airlines.
AS 778 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 roughly 50 minutes on average. That rests on 347 flights, with a median arrival 6 minutes early.
Set against the rest of the country, AS 778's record is 5 points better than the US average of 77.3%. That gap is worth roughly 54 fewer late arrivals for every thousand flights.
Key figures
On time
82.7%
Arrivals under 15 minutes late, of 347 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
4.9%
National rate is 8.3%
These figures cover 347 flights between September 2025 and August 2026. The median arrival is 6 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 778 flies
AS 778 flies PDX to LAS without a single fixed slot. Its most common scheduled departure was 14:30, used on 119 of 347 flights, with 14:46 (65 flights) next.
- Departs 14:30119 flights34.3%
- Departs 14:4665 flights18.7%
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 14:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and AS 778 runs 11 points better at 82.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
AS 778 next to PDX to LAS
Every carrier on PDX to LAS combined arrived on time 79.9% of the time across 2,934 flights, so AS 778 is 3 points ahead of it. Alaska flew 1,571 flights on the same city pair under all its flight numbers, including this one, and those ran 83.2% on time. 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 778thin sample | 347 | 82.7% | 52 min | 0.00% | B+ |
| All Alaska Airlines on PDX–LAS | 1,571 | 83.2% | 52 min | 0.45% | B+ |
| All carriers on PDX–LAS | 2,934 | 79.9% | 54 min | 0.55% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 778 quarter by quarter
AS 778 did not run the same all year. Its best quarter was Jan–Mar 2026 at 91.9% on time and its weakest Jul–Sep 2026 at 67.3%, a swing of 25 points on roughly 87 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 202529 flights—
- Oct–Dec 202589 flights80.9%
- Jan–Mar 202686 flights91.9%
- Apr–Jun 202688 flights86.4%
- Jul–Sep 202655 flights67.3%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 778 did best on Saturday at 89.5% on time and worst on Friday at 76.0%. Each day rests on about 50 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 778 runs when it is late
The 60 late arrivals split 24 under half an hour, 19 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early81 flights23.3%
- Within 15 min206 flights59.4%
- 15–29 min late24 flights6.9%
- 30–59 min late19 flights5.5%
- 1–2 hours late12 flights3.5%
- 2+ hours late5 flights1.4%
Scale runs 0% to 100%.
Share of 347 completed flights by arrival against schedule.
18 of 68 late departures made up the time and arrived on time, 26% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for AS 778
The latest arrival of the period was on 23 October 2025, 4 hours 41 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across October, November, September, December and April, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 October 2025 | 4 hours 41 minutes | Carrier |
| 18 November 2025 | 2 hours 29 minutes | Late-arriving aircraft |
| 5 September 2025 | 2 hours 28 minutes | Carrier |
| 22 December 2025 | 2 hours 6 minutes | Late-arriving aircraft |
| 17 April 2026 | 2 hours 6 minutes | National Airspace System |
Delay causes
Why AS 778 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,107 reported delay minutes.
- 40%Late-arriving aircraft
- 34%Carrier
- 25%National Airspace System
- 1%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,107 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 3,107 delay minutes reported on AS 778.
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 4.9% 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.
The 763 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 347 flights under AS 778 in the data flew PDX to LAS. 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. 347 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 778
For a booking, read AS 778 as 82.7% on time with 0.00% cancelled over 347 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- PDX to LAS, every carrier and departure
- LAS to PDX, the return direction
- Alaska Airlines 757 on the same route84.5%
- Alaska Airlines 531 on the same route80.7%
- Alaska Airlines 627 on the same route89.2%
- Portland International (PDX) delay statistics
- Harry Reid International (LAS) 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.