Flight number record
DL 2444
Delta Air Lines · Phoenix to Seattle
- Route
- PHX → SEA
- Departs
- 08:00
- Flights
- 296
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2444, check with Delta Air Lines.
DL 2444 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 296 flights, with a median arrival 19 minutes early.
Set against the rest of the country, DL 2444's record is 17 points better than the US average of 77.3%. That gap is worth roughly 169 fewer late arrivals for every thousand flights.
Key figures
On time
94.2%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
119 min
Across delayed arrivals only, not all flights
Cancelled
1.01%
National rate is 1.89%
1 hour+ late
2.7%
National rate is 8.3%
These figures cover 296 flights between September 2025 and August 2026. The median arrival is 19 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 DL 2444 flies
DL 2444 flies PHX to SEA without a single fixed slot. Its most common scheduled departure was 08:00, used on 41 of 296 flights, with 06:20 (38 flights) and 06:15 (36 flights) next.
- Departs 08:0041 flights13.9%
- Departs 06:2038 flights12.8%
- Departs 06:1536 flights12.2%
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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 2444 runs 10 points better at 94.2%. 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
DL 2444 next to PHX to SEA
Every carrier on PHX to SEA combined arrived on time 82.2% of the time across 7,202 flights, so DL 2444 is 12 points ahead of it. Delta flew 1,767 flights on the same city pair under all its flight numbers, including this one, and those ran 87.5% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2444thin sample | 296 | 94.2% | 119 min | 1.01% | A |
| All Delta Air Lines on PHX–SEA | 1,767 | 87.5% | 75 min | 0.96% | A+ |
| All carriers on PHX–SEA | 7,202 | 82.2% | 56 min | 0.69% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2444 quarter by quarter
Quarter by quarter DL 2444 held fairly steady: 100.0% in Jul–Sep 2025, 92.4% in Oct–Dec 2025, 94.2% in Jan–Mar 2026 and 94.0% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights100.0%
- Oct–Dec 202592 flights92.4%
- Jan–Mar 202690 flights94.2%
- Apr–Jun 202684 flights94.0%
Scale runs 85% to 100%.
By weekday, DL 2444 did best on Thursday at 100.0% on time and worst on Friday at 85.7%. Each day rests on about 42 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2444 runs when it is late
DL 2444 often beats the schedule: 185 of 291 completed flights, 64%, arrived 15 minutes or more early. The 17 late arrivals split 6 under half an hour, 3 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early185 flights63.6%
- Within 15 min89 flights30.6%
- 15–29 min late6 flights2.1%
- 30–59 min late3 flights1.0%
- 1–2 hours late1 flights0.3%
- 2+ hours late7 flights2.4%
Scale runs 0% to 100%.
Share of 291 completed flights by arrival against schedule.
Only 13 of 291 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for DL 2444
The latest arrival of the period was on 6 January 2026, 6 hours 10 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 |
|---|---|---|
| 6 January 2026 | 6 hours 10 minutes | Late-arriving aircraft |
| 11 March 2026 | 5 hours 56 minutes | Carrier |
| 11 October 2025 | 4 hours 6 minutes | Carrier |
| 9 November 2025 | 3 hours 45 minutes | Carrier |
| 24 April 2026 | 3 hours 39 minutes | Late-arriving aircraft |
Delay causes
Why DL 2444 runs late
Carrier accounts for 57% of the 2,022 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Carrier
- 30%Late-arriving aircraft
- 14%National Airspace System
The largest share of delay minutes, 57%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,145 of the 2,022 delay minutes reported here. The split is drawn from 2,022 delay minutes reported on DL 2444.
Cancellations sit at 1.01% against a national 1.89%, which is ordinary. Diversions add another 0.68%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.7% 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.
The 1,107 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.
The same number turns up on two other city pairs in the data, including GEG to SLC (16) and SLC to GEG (16), but none flew often enough under DL 2444 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PHX to SEA only.
One caution: this is a thin sample. 296 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 DL 2444
For a booking, DL 2444 has one of the better records a US domestic flight can show: 94.2% on time and 1.01% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- PHX to SEA, every carrier and departure
- SEA to PHX, the return direction
- Delta Air Lines 2419 on the same route92.8%
- Alaska Airlines 637 on the same route84.0%
- Alaska Airlines 603 on the same route87.2%
- Alaska Airlines 645 on the same route85.1%
- Alaska Airlines 611 on the same route81.5%
- Phoenix Sky Harbor International (PHX) delay statistics
- Seattle-Tacoma International (SEA) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines 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 Delta Air Lines’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.