Flight number record

DL 2447

Delta Air Lines · Seattle to Phoenix

Route: SEA → PHX
Departs: 09:55
Flights: 313
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2447, check with Delta Air Lines.

DL 2447 lands a B+, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 313 flights, with a median arrival 6 minutes early.

Set against the rest of the country, DL 2447's record is 5 points better than the US average of 77.6%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.

On time

82.5%

Arrivals under 15 minutes late, of 309 completed flights

Avg delay

94 min

Across delayed arrivals only, not all flights

Cancelled

0.64%

National rate is 1.81%

1 hour+ late

5.5%

National rate is 8.1%

These figures cover 313 flights between July 2025 and June 2026. The median arrival is 6 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.

Schedule

When DL 2447 flies

DL 2447 flies SEA to PHX without a single fixed slot. Its most common scheduled departure was 09:55, used on 90 of 313 flights, with 09:45 (75 flights) and 09:35 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:5590 flights28.8%
Departs 09:4575 flights24.0%
Departs 09:3545 flights14.4%

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 09:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2447 runs level with that at 82.5%. 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

DL 2447 next to SEA to PHX

Every carrier on SEA to PHX combined arrived on time 79.2% of the time across 7,268 flights, so DL 2447 is 3 points ahead of it. Delta flew 1,765 flights on the same city pair under all its flight numbers, including this one, and those ran 82.6% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 2447 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2447thin sample	313	82.5%	94 min	0.64%	B+
All Delta Air Lines on SEA–PHX	1,765	82.6%	65 min	0.85%	B+
All carriers on SEA–PHX	7,268	79.2%	56 min	0.70%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2447 quarter by quarter

DL 2447 did not run the same all year. Its best quarter was Jul–Sep 2025 at 94.5% on time and its weakest Oct–Dec 2025 at 73.1%, a swing of 21 points on roughly 78 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 flights94.5%
Oct–Dec 202580 flights73.1%
Jan–Mar 202683 flights76.8%
Apr–Jun 202658 flights84.5%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2447 did best on Wednesday at 93.5% on time and worst on Monday at 72.7%. Each day rests on about 45 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2447 runs late

One category carries most of the weight here. Carrier accounts for 73% of the 5,093 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.

Carrier
73%
Late-arriving aircraft
14%
National Airspace System
7%
Extreme weather
7%

The largest share of delay minutes, 73%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,693 of the 5,093 delay minutes reported here. The split is drawn from 5,093 delay minutes reported on DL 2447.

Cancellations are rare at 0.64%, below the national 1.81% 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

5.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.

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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on one other city pair in the data, including PHX to SEA (215), but none flew often enough under DL 2447 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to PHX only.

One caution: this is a thin sample. 313 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 2447

For a booking, read DL 2447 as 82.5% on time with 0.64% cancelled over 313 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures