Flight number record
AS 365
Alaska Airlines · Dallas-Fort Worth to Seattle
- Route
- DFW → SEA
- Departs
- 09:00
- Flights
- 359
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AS 365, check with Alaska Airlines.
AS 365 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land roughly 45 minutes behind schedule. That rests on 359 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so AS 365 runs 4 points behind the country as a whole. Across a thousand flights that is about 42 extra late arrivals.
Key figures
On time
73.4%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
46 min
Across delayed arrivals only, not all flights
Cancelled
1.67%
National rate is 1.81%
1 hour+ late
4.8%
National rate is 8.1%
These figures cover 359 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
Schedule
When AS 365 flies
AS 365 flies DFW to SEA without a single fixed slot. Its most common scheduled departure was 09:00, used on 122 of 359 flights, with 08:00 (92 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 09:00122 flights34.0%
- Departs 08:0092 flights25.6%
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 09:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and AS 365 runs 11 points worse at 73.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
AS 365 next to DFW to SEA
Every carrier on DFW to SEA combined arrived on time 69.5% of the time across 5,232 flights, so AS 365 is 4 points ahead of it. Alaska flew 1,756 flights on the same city pair under all its flight numbers, including this one, and those ran 72.7% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 365thin sample | 359 | 73.4% | 46 min | 1.67% | C |
| All Alaska Airlines on DFW–SEA | 1,756 | 72.7% | 57 min | 1.48% | C |
| All carriers on DFW–SEA | 5,232 | 69.5% | 64 min | 2.12% | C |
| Alaska Airlines, whole network | 293,372 | 79.1% | 52 min | 1.28% | B |
Across the year
AS 365 quarter by quarter
AS 365 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.4% on time and its weakest Jul–Sep 2025 at 62.2%, a swing of 24 points on roughly 90 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 202592 flights62.2%
- Oct–Dec 202591 flights62.9%
- Jan–Mar 202688 flights82.6%
- Apr–Jun 202688 flights86.4%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, AS 365 did best on Friday at 86.0% on time and worst on Monday at 64.0%. Each day rests on about 51 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Delay causes
Why AS 365 runs late
One category carries most of the weight here. National Airspace System accounts for 43% of the 4,366 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.
- 43%National Airspace System
- 27%Carrier
- 15%Extreme weather
- 14%Late-arriving aircraft
- 1%Security
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 4,366 delay minutes reported on AS 365.
Cancellations sit at 1.67% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.8% 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.
At 1,660 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 359 flights under AS 365 in the data flew DFW to SEA. 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. 359 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 365
For a booking, read AS 365 as 73.4% on time with 1.67% cancelled over 359 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DFW to SEA, every carrier and departure
- SEA to DFW, the return direction
- Delta Air Lines 804 on the same route85.0%
- American Airlines 757 on the same route73.2%
- American Airlines 727 on the same route56.5%
- American Airlines 767 on the same route73.2%
- Alaska Airlines 415 on the same route78.2%
- American Airlines 707 on the same route83.2%
- Dallas/Fort Worth International (DFW) delay statistics
- Seattle-Tacoma International (SEA) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.