Flight number record
AS 6
Alaska Airlines · Los Angeles to Washington
- Route
- LAX → DCA
- Departs
- 11:48
- Flights
- 362
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 6, check with Alaska Airlines.
AS 6 lands a B+, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 362 flights, with a median arrival 15 minutes early.
Key figures
On time
78.4%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
0.83%
National rate is 1.89%
1 hour+ late
9.6%
National rate is 8.3%
These figures cover 362 flights between September 2025 and August 2026. Beyond the headline rate, 9.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When AS 6 flies
AS 6 flies LAX to DCA without a single fixed slot. Its most common scheduled departure was 11:48, used on 68 of 362 flights.
- Departs 11:4868 flights18.8%
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 11:48 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AS 6 runs level with that at 78.4%. 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 6 next to LAX to DCA
Every carrier on LAX to DCA combined arrived on time 79.9% of the time across 1,454 flights, so AS 6 is 2 points behind it. Across its whole network Alaska Airlines managed 79.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 6thin sample | 362 | 78.4% | 69 min | 0.83% | B+ |
| All Alaska Airlines on LAX–DCAthin sample | 364 | 78.2% | 68 min | 0.82% | B+ |
| All carriers on LAX–DCA | 1,454 | 79.9% | 75 min | 1.31% | B |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 6 quarter by quarter
AS 6 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jan–Mar 2026 at 71.3%, a swing of 19 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 flights90.0%
- Oct–Dec 202591 flights79.1%
- Jan–Mar 202690 flights71.3%
- Apr–Jun 202690 flights83.1%
- Jul–Sep 202661 flights74.6%
Scale runs 65% to 95%.
By weekday, AS 6 did best on Tuesday at 86.3% on time and worst on Friday at 70.6%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 6 runs when it is late
AS 6 often beats the schedule: 178 of 356 completed flights, 50%, arrived 15 minutes or more early. The 77 late arrivals split 18 under half an hour, 25 between 30 and 60 minutes, and 34 an hour or more.
- 15+ min early178 flights50.0%
- Within 15 min101 flights28.4%
- 15–29 min late18 flights5.1%
- 30–59 min late25 flights7.0%
- 1–2 hours late22 flights6.2%
- 2+ hours late12 flights3.4%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
20 of 88 late departures made up the time and arrived on time, 23% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for AS 6
The latest arrival of the period was on 20 May 2026, 6 hours 11 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across May, February, January and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 May 2026 | 6 hours 11 minutes | Carrier |
| 16 February 2026 | 3 hours 13 minutes | Late-arriving aircraft |
| 30 January 2026 | 3 hours 8 minutes | National Airspace System |
| 19 December 2025 | 3 hours | Carrier |
| 29 January 2026 | 2 hours 55 minutes | National Airspace System |
Delay causes
Why AS 6 runs late
National Airspace System accounts for 56% of the 5,305 delay minutes carriers reported here, and the remaining four split what is left.
- 56%National Airspace System
- 23%Carrier
- 18%Late-arriving aircraft
- 3%Extreme weather
56% 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 2,954 minutes out of 5,305, against a national NAS share of 21%. The split is drawn from 5,305 delay minutes reported on AS 6.
Cancellations are rare at 0.83%, 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
9.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
At 2,311 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 362 flights under AS 6 in the data flew LAX to DCA. 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. 362 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 6
For a booking, read AS 6 as 78.4% on time with 0.83% cancelled over 362 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to DCA, every carrier and departure
- DCA to LAX, the return direction
- Delta Air Lines 392 on the same route80.4%
- Los Angeles International (LAX) delay statistics
- Ronald Reagan Washington National (DCA) 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
- How often a connection fails at the major US hubs
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.