Flight number record

WN 311

Southwest Airlines · Dallas to Panama City

Route: DAL → ECP
Departs: 08:55
Flights: 337
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s WN 311, check with Southwest Airlines.

WN 311 lands a B+, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 337 flights, with a median arrival 4 minutes early.

On time

79.5%

Arrivals under 15 minutes late, of 336 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

7.1%

National rate is 8.1%

These figures cover 337 flights between July 2025 and June 2026. The median arrival is 4 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 311 flies

WN 311 flies DAL to ECP without a single fixed slot. Its most common scheduled departure was 08:55, used on 34 of 337 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:5534 flights10.1%

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 08:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and WN 311 runs 5 points worse at 79.5%. 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

WN 311 next to DAL to ECP

Every carrier on DAL to ECP combined arrived on time 70.6% of the time across 680 flights, so WN 311 is 9 points ahead of it. Across its whole network Southwest Airlines managed 76.6%, which this flight beats by 3 points.

WN 311 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
WN 311thin sample	337	79.5%	57 min	0.00%	B+
All Southwest Airlines on DAL–ECP	680	70.6%	56 min	0.44%	C+
All carriers on DAL–ECP	680	70.6%	56 min	0.44%	C+
Southwest Airlines, whole network	1,390,634	76.6%	54 min	0.89%	B+

Across the year

WN 311 quarter by quarter

WN 311 did not run the same all year. Its best quarter was Oct–Dec 2025 at 84.6% on time and its weakest Apr–Jun 2026 at 61.9%, a swing of 23 points on roughly 84 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 flights82.6%
Oct–Dec 202592 flights84.6%
Jan–Mar 202690 flights83.3%
Apr–Jun 202663 flights61.9%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, WN 311 did best on Sunday at 91.3% on time and worst on Thursday at 68.8%. Each day rests on about 48 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Delay causes

Why WN 311 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 52% of the 3,936 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
52%
Carrier
28%
National Airspace System
14%
Extreme weather
6%

52% 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 3,936 reported delay minutes here, that single category outweighs weather by 9 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 3,936 delay minutes reported on WN 311.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

7.1% 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 about an hour, which a normal layover absorbs.

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 27 other city pairs in the data, including ECP to BNA (149), MDW to SEA (24) and SEA to OAK (24), but none flew often enough under WN 311 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DAL to ECP only.

One caution: this is a thin sample. 337 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 311

For a booking, read WN 311 as 79.5% on time with 0.00% cancelled over 337 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