Flight number record
AS 1470
Alaska Airlines · Chicago to San Diego
- Route
- ORD → SAN
- Departs
- 08:20
- Flights
- 309
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 1470, check with Alaska Airlines.
AS 1470 lands a B, about a point worse than the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 309 flights, with a median arrival 8 minutes early.
Key figures
On time
76.1%
Arrivals under 15 minutes late, of 305 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
1.29%
National rate is 1.89%
1 hour+ late
6.6%
National rate is 8.3%
These figures cover 309 flights between September 2025 and August 2026. The median arrival is 8 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When AS 1470 flies
AS 1470 flies ORD to SAN without a single fixed slot. Its most common scheduled departure was 08:20, used on 73 of 309 flights, with 06:20 (70 flights) and 09:00 (63 flights) next.
- Departs 08:2073 flights23.6%
- Departs 06:2070 flights22.7%
- Departs 09:0063 flights20.4%
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 08:20 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 1470 runs 8 points worse at 76.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
AS 1470 next to ORD to SAN
Every carrier on ORD to SAN combined arrived on time 70.5% of the time across 3,945 flights, so AS 1470 is 6 points ahead of it. Alaska flew 862 flights on the same city pair under all its flight numbers, including this one, and those ran 68.7% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 1470thin sample | 309 | 76.1% | 59 min | 1.29% | B |
| All Alaska Airlines on ORD–SAN | 862 | 68.7% | 73 min | 2.55% | C |
| All carriers on ORD–SAN | 3,945 | 70.5% | 66 min | 1.29% | C |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 1470 quarter by quarter
AS 1470 did not run the same all year. Its best quarter was Jul–Sep 2026 at 93.4% on time and its weakest Oct–Dec 2025 at 50.0%, a swing of 43 points on roughly 77 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 202567 flights50.0%
- Jan–Mar 202690 flights77.8%
- Apr–Jun 202690 flights81.1%
- Jul–Sep 202662 flights93.4%
Scale runs 40% to 100%.
By weekday, AS 1470 did best on Thursday at 84.1% on time and worst on Friday at 63.6%. Each day rests on about 44 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 1470 runs when it is late
AS 1470 often beats the schedule: 120 of 305 completed flights, 39%, arrived 15 minutes or more early. The 73 late arrivals split 35 under half an hour, 18 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early120 flights39.3%
- Within 15 min112 flights36.7%
- 15–29 min late35 flights11.5%
- 30–59 min late18 flights5.9%
- 1–2 hours late11 flights3.6%
- 2+ hours late9 flights3.0%
Scale runs 0% to 100%.
Share of 305 completed flights by arrival against schedule.
A late pushback is often recovered here: of 67 departures that left 15 minutes late or more, 25 still arrived on time. In the other direction, 31 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 SAN.
The worst days
Worst days for AS 1470
The latest arrival of the period was on 11 March 2026, 7 hours 23 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 March 2026 | 7 hours 23 minutes | Late-arriving aircraft |
| 25 November 2025 | 4 hours 15 minutes | Carrier |
| 24 January 2026 | 4 hours 5 minutes | Extreme weather |
| 3 April 2026 | 3 hours 35 minutes | Carrier |
| 18 December 2025 | 3 hours 26 minutes | Carrier |
Delay causes
Why AS 1470 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 4,319 reported delay minutes.
- 39%National Airspace System
- 34%Carrier
- 15%Extreme weather
- 12%Late-arriving aircraft
Extreme weather accounts for 15% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 4,319 delay minutes reported on AS 1470.
Cancellations sit at 1.29% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
6.6% 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 1,723 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 309 flights under AS 1470 in the data flew ORD to SAN. 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. 309 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 1470
For a booking, read AS 1470 as 76.1% on time with 1.29% cancelled over 309 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ORD to SAN, every carrier and departure
- SAN to ORD, the return direction
- United Airlines 660 on the same route82.2%
- United Airlines 2683 on the same route78.7%
- Alaska Airlines 1447 on the same route68.4%
- Chicago O'Hare International (ORD) delay statistics
- San Diego International (SAN) 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.