Flight number record
AS 270
Alaska Airlines · Ontario to Honolulu
- Route
- ONT → HNL
- Departs
- 09:11
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 270, check with Alaska Airlines.
AS 270 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 363 flights, with a median arrival 7 minutes early.
Set against the rest of the country, AS 270's record is 5 points better than the US average of 77.3%. That gap is worth roughly 50 fewer late arrivals for every thousand flights.
Key figures
On time
82.3%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
48 min
Across delayed arrivals only, not all flights
Cancelled
0.28%
National rate is 1.89%
1 hour+ late
3.9%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. The median arrival is 7 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 270 flies
AS 270 flies ONT to HNL without a single fixed slot. Its most common scheduled departure was 09:11, used on 70 of 363 flights.
- Departs 09:1170 flights19.3%
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 09:11 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 270 runs level with that at 82.3%. 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 270 next to ONT to HNL
Every carrier on ONT to HNL combined arrived on time 84.7% of the time across 446 flights, so AS 270 is 2 points behind 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 270thin sample | 363 | 82.3% | 48 min | 0.28% | B+ |
| All Alaska Airlines on ONT–HNL | 365 | 82.4% | 48 min | 0.27% | B+ |
| All carriers on ONT–HNL | 446 | 84.7% | 47 min | 0.22% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 270 quarter by quarter
AS 270 did not run the same all year. Its best quarter was Oct–Dec 2025 at 89.9% on time and its weakest Jul–Sep 2026 at 64.5%, a swing of 25 points on roughly 73 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 flights86.7%
- Oct–Dec 202590 flights89.9%
- Jan–Mar 202690 flights80.0%
- Apr–Jun 202691 flights87.9%
- Jul–Sep 202662 flights64.5%
Scale runs 55% to 95%.
By weekday, AS 270 ranged from 76.9% on Tuesday to 86.0% on Friday. With about 52 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late AS 270 runs when it is late
AS 270 often beats the schedule: 94 of 362 completed flights, 26%, arrived 15 minutes or more early. The 64 late arrivals split 31 under half an hour, 19 between 30 and 60 minutes, and 14 an hour or more.
- 15+ min early94 flights26.0%
- Within 15 min204 flights56.4%
- 15–29 min late31 flights8.6%
- 30–59 min late19 flights5.2%
- 1–2 hours late8 flights2.2%
- 2+ hours late6 flights1.7%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
5 of 23 late departures made up the time and arrived on time, 22% of them. In the other direction, 46 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 HNL.
The worst days
Worst days for AS 270
The latest arrival of the period was on 21 September 2025, 5 hours 9 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 September 2025 | 5 hours 9 minutes | Carrier |
| 25 August 2026 | 2 hours 35 minutes | Carrier |
| 20 March 2026 | 2 hours 30 minutes | National Airspace System |
| 31 January 2026 | 2 hours 6 minutes | Carrier |
| 4 January 2026 | 2 hours 1 minute | Carrier |
Delay causes
Why AS 270 runs late
National Airspace System accounts for 65% of the 3,043 delay minutes carriers reported here, and the remaining four split what is left.
- 65%National Airspace System
- 34%Carrier
- 1%Extreme weather
65% 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 1,966 minutes out of 3,043, against a national NAS share of 21%. The split is drawn from 3,043 delay minutes reported on AS 270.
Cancellations are rare at 0.28%, 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
Badly late arrivals are rare here: only 3.9% 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.
At 2,603 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 363 flights under AS 270 in the data flew ONT to HNL. 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. 363 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 270
For a booking, read AS 270 as 82.3% on time with 0.28% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- Ontario International (ONT) delay statistics
- Daniel K. Inouye International (HNL) 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
- Worst months to fly in the US, ranked by the data
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.