Flight number record
AS 778
Alaska Airlines · Portland to Las Vegas
- Route
- PDX → LAS
- Departs
- 14:30
- Flights
- 354
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AS 778, check with Alaska Airlines.
AS 778 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 55 minutes on average. That is a workable record, not a spotless one. That rests on 354 flights, with a median arrival 5 minutes early.
Set against the rest of the country, AS 778's record is 6 points better than the US average of 77.6%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.
Key figures
On time
83.9%
Arrivals under 15 minutes late, of 354 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
4.2%
National rate is 8.1%
These figures cover 354 flights between July 2025 and June 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.
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 169 of 354 flights, with 14:50 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 14:30169 flights47.7%
- Departs 14:5044 flights12.4%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
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 72.4%, and AS 778 runs 12 points better at 83.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
AS 778 next to PDX to LAS
Every carrier on PDX to LAS combined arrived on time 80.2% of the time across 2,983 flights, so AS 778 is 4 points ahead of it. Alaska flew 1,534 flights on the same city pair under all its flight numbers, including this one, and those ran 82.7% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 778thin sample | 354 | 83.9% | 54 min | 0.00% | B+ |
| All Alaska Airlines on PDX–LAS | 1,534 | 82.7% | 51 min | 0.52% | B+ |
| All carriers on PDX–LAS | 2,983 | 80.2% | 54 min | 0.54% | B+ |
| Alaska Airlines, whole network | 293,372 | 79.1% | 52 min | 1.28% | 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 2025 at 76.9%, a swing of 15 points on roughly 89 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 202591 flights76.9%
- Oct–Dec 202589 flights80.9%
- Jan–Mar 202686 flights91.9%
- Apr–Jun 202688 flights86.4%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 778 ranged from 78.0% on Friday to 88.9% on Saturday. With about 51 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why AS 778 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 3,087 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 45%Late-arriving aircraft
- 30%Carrier
- 24%National Airspace System
- 1%Extreme weather
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,087 reported delay minutes here, that single category outweighs weather by 45 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,087 delay minutes reported on AS 778.
Cancellations are rare at 0.00%, below the national 1.81% 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 4.2% land an hour or more behind schedule, against 8.1% 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 354 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. 354 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 83.9% on time with 0.00% cancelled over 354 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 route83.0%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.