Flight number record

WN 312

Southwest Airlines · Panama City to Dallas

Route: ECP → DAL
Departs: 10:30
Flights: 327
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s WN 312, check with Southwest Airlines.

WN 312 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 327 flights, with a median arrival 10 minutes early.

Set against the rest of the country, WN 312's record is 9 points better than the US average of 77.6%. That gap is worth roughly 87 fewer late arrivals for every thousand flights.

On time

86.3%

Arrivals under 15 minutes late, of 321 completed flights

Avg delay

70 min

Across delayed arrivals only, not all flights

Cancelled

1.53%

National rate is 1.81%

1 hour+ late

4.7%

National rate is 8.1%

These figures cover 327 flights between July 2025 and June 2026. The median arrival is 10 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 WN 312 flies

WN 312 flies ECP to DAL without a single fixed slot. Its most common scheduled departure was 10:30, used on 40 of 327 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 10:3040 flights12.2%

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 10:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and WN 312 runs 2 points better at 86.3%. 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

WN 312 next to ECP to DAL

Every carrier on ECP to DAL combined arrived on time 80.2% of the time across 681 flights, so WN 312 is 6 points ahead of it. Across its whole network Southwest Airlines managed 76.6%, which this flight beats by 10 points.

WN 312 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
WN 312thin sample	327	86.3%	70 min	1.53%	A
All Southwest Airlines on ECP–DAL	681	80.2%	65 min	0.88%	B+
All carriers on ECP–DAL	681	80.2%	65 min	0.88%	B+
Southwest Airlines, whole network	1,390,634	76.6%	54 min	0.89%	B+

Across the year

WN 312 quarter by quarter

Quarter by quarter WN 312 held fairly steady: 81.2% in Jul–Sep 2025, 84.9% in Oct–Dec 2025, 89.5% in Jan–Mar 2026 and 90.6% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202587 flights81.2%
Oct–Dec 202587 flights84.9%
Jan–Mar 202689 flights89.5%
Apr–Jun 202664 flights90.6%

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, WN 312 did best on Friday at 95.8% on time and worst on Saturday at 73.2%. Each day rests on about 47 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Delay causes

Why WN 312 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 3,096 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.

Late-arriving aircraft
46%
Carrier
34%
National Airspace System
18%
Extreme weather
2%

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,096 reported delay minutes here, that single category outweighs weather by 20 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,096 delay minutes reported on WN 312.

Cancellations sit at 1.53% against a national 1.81%, which is ordinary. Diversions add another 0.31%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.7% 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.

The 674 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 twenty other city pairs in the data, including BNA to ECP (96), DAL to LBB (49) and DAL to MDW (18), but none flew often enough under WN 312 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ECP to DAL only.

One caution: this is a thin sample. 327 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 WN 312

For a booking, read WN 312 as 86.3% on time with 1.53% cancelled over 327 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 Southwest 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.

Key figures