Carrier performance at one airport
WN→OKC
Southwest Airlines at Will Rogers World
- Departures
- 7,274
- Period
- September 2025 to August 2026
- Routes
- 12
- Rank here
- #5 of 10
Southwest Airlines at Oklahoma City lands a B+, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That rests on 7,274 flights, of which Delta Air Lines flew 1,728 at 88.3% on time.
Measured against the airport rather than the country, Southwest Airlines runs half a point behind the 81.5% weighted average across all carriers at OKC. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
81.2%
7,193 completed departures
Avg delay
51 min
Across delayed flights only
Cancelled
0.82%
At OKC, this carrier only
Rank here
#5
Of 10 carriers clearing the floor at OKC
These figures cover 7,274 flights between September 2025 and August 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.
Against the competition
Every carrier at OKC, ranked
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 88.3% of the time; PSA Airlines manages 70.4%. Sample sizes sit next to every figure, because a two-point gap across 402 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,728 | 88.3% | 96 min | 2.60% | A |
| Alaska Airlines | 424 | 88.2% | 36 min | 0.24% | A+ |
| Envoy Air | 1,271 | 82.1% | 66 min | 2.12% | B |
| SkyWest Airlines | 7,670 | 82.1% | 90 min | 1.60% | B |
| Southwest Airlines (this page) | 7,274 | 81.2% | 51 min | 0.82% | B+ |
| American Airlines | 2,573 | 80.1% | 112 min | 2.41% | B |
| Republic Airways | 959 | 79.5% | 102 min | 4.80% | B− |
| United Airlines | 798 | 76.7% | 60 min | 1.13% | B |
| Frontier Airlines | 586 | 75.3% | 94 min | 1.19% | B |
| PSA Airlines | 402 | 70.4% | 118 min | 6.47% | C− |
PSA Airlines cancels 6.5% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Route by route
Where Southwest Airlines flies from OKC
Southwest Airlines operates 12 routes out of OKC with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OKC to DEN · Denver | 1,229 | 79.6% | 51 min | 0.90% | B+ |
| OKC to HOU · Houston | 1,217 | 82.2% | 53 min | 0.74% | B+ |
| OKC to LAS · Las Vegas | 1,065 | 80.2% | 51 min | 0.75% | B+ |
| OKC to PHX · Phoenix | 866 | 82.9% | 58 min | 0.92% | B+ |
| OKC to MDW · Chicago | 573 | 83.6% | 45 min | 1.40% | B |
| OKC to BNA · Nashville | 555 | 80.0% | 53 min | 0.54% | B+ |
| OKC to DAL · Dallasthin sample | 360 | 79.2% | 60 min | 0.00% | B+ |
| OKC to STL · St. Louisthin sample | 352 | 89.9% | 48 min | 1.42% | A |
| OKC to DCA · Washingtonthin sample | 328 | 79.0% | 42 min | 1.22% | B |
| OKC to AUS · Austinthin sample | 314 | 81.5% | 46 min | 0.32% | B+ |
| OKC to MCO · Orlandothin sample | 307 | 75.8% | 49 min | 0.98% | B+ |
| OKC to SAT · San Antoniothin sample | 71 | 77.5% | 32 min | 0.00% | B+ |
Departure window
Best time of day for this operation
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 30 points, against 18 points between the best and worst carrier.
- 5am–8am2,161 flights95.2%
- 8am–11am603 flights89.1%
- 11am–2pm1,532 flights79.6%
- 2pm–5pm1,418 flights73.1%
- 5pm–8pm1,100 flights68.5%
- 8pm–5am460 flights65.1%
Scale runs 55% to 100%.
Book the early departure. Flights leaving between 5am–8am arrive on time 95.2% of the time, against 65.1% for the overnight window. That is 30 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 2,161 flights scheduled in it.
Across the year
Seasonal pattern
June is the worst month at 73.4% on time, 18 points below January, the best at 91.7%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 649 flights.
Delay causes
What holds this operation up
- 55%Late-arriving aircraft
- 25%National Airspace System
- 18%Carrier
- 2%Extreme weather
- 0%Security
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 69,000 reported delay minutes here, that single category outweighs weather by 26 to one. The split is drawn from 69,439 reported delay minutes.
Cancellations are rare at 0.82%, below the national 1.89% 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.
Badly late arrivals are rare here: only 4.7% 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 sample behind these figures is 7,274 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Put together: the calendar is the biggest lever here, not the carrier or the hour. January runs 91.7% on time and June 73.4%, a swing of 18 points. If the dates move at all, move them out of June before you think about anything else. 7,193 completed flights over 12 months sit behind that.
Common questions
Southwest Airlines at OKC
How often is Southwest Airlines at OKC delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.8% of the 7,274 flights in this analysis, against 22.7% nationally. Delayed flights are late by roughly 50 minutes on average.
Which airline is most reliable on Southwest Airlines at OKC?
Delta Air Lines leads at 88.3% on time across 1,728 flights. PSA Airlines is at the other end on 70.4%, a gap of 18 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on Southwest Airlines at OKC?
The 5am–8am departure window is the strongest at 95.2% on time. The 8pm–5am window is the weakest at 65.1%, 30 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are June delays on Southwest Airlines at OKC?
June is the weakest month at 73.4% on time, compared with 91.7% in January. Across the year that is 18 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
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.