Carrier route record
WNOKC→PHX
Southwest Airlines · Oklahoma City to Phoenix
- Flights
- 866
- Period
- September 2025 to August 2026
- Share of route
- 47%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Southwest Airlines.
Southwest on OKC to PHX lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 866 flights, with a median arrival 8 minutes early.
Set against the rest of the country, Southwest's OKC to PHX record is 6 points better than the US average of 77.3%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.
Key figures
On time
82.9%
Arrivals under 15 minutes late, of 855 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.92%
National rate is 1.89%
Whole route
80.6%
Every carrier on OKC to PHX, 1,834 flights
These figures cover 866 flights between September 2025 and August 2026. The median arrival is 8 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Southwest against every carrier on OKC to PHX
Southwest flew 866 of the 1,834 flights on OKC to PHX, about 47% of it. Its 82.9% on time is 2 points better than the route as a whole, which runs 80.6%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from American at 86.2% to SkyWest at 77.3%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 134 | 86.2% | 65 min | 2.99% | A |
| Southwest Airlines (this page) | 866 | 82.9% | 58 min | 0.92% | B+ |
| SkyWest Airlines | 834 | 77.3% | 97 min | 0.60% | B+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Southwest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 33 points, against half a point between the best and worst carrier.
- 5am–8am288 flights96.9%
- 8am–11am58 flights91.2%
- 11am–2pm76 flights81.6%
- 2pm–5pm102 flights78.8%
- 5pm–8pm222 flights74.9%
- 8pm–5am120 flights64.4%
Scale runs 55% to 100%.
The 8pm–5am window is where this operation falls apart: 64.4% on time, against 96.9% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 288 flights scheduled in it.
Across the year
Southwest on OKC to PHX through the year
June is the worst month at 70.5% on time, 22 points below September, the best at 92.9%. 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. December was the busiest month here, with 87 flights.
Across the week, Wednesday is the strongest day at 86.2% on time and Thursday the weakest at 81.3%, a spread of 5 points.
Arrival by arrival
How late Southwest on OKC to PHX runs when it is late
Southwest on OKC to PHX often beats the schedule: 242 of 855 completed flights, 28%, arrived 15 minutes or more early. The 146 late arrivals split 59 under half an hour, 46 between 30 and 60 minutes, and 41 an hour or more.
- 15+ min early242 flights28.3%
- Within 15 min467 flights54.6%
- 15–29 min late59 flights6.9%
- 30–59 min late46 flights5.4%
- 1–2 hours late26 flights3.0%
- 2+ hours late15 flights1.8%
Scale runs 0% to 100%.
Share of 855 completed flights by arrival against schedule.
A late pushback is often recovered here: of 193 departures that left 15 minutes late or more, 58 still arrived on time. Only 11 left on time and still arrived late.
The worst days
Worst days for Southwest on OKC to PHX
The latest arrival of the period was on 26 March 2026, 5 hours 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 March 2026 | 5 hours 36 minutes | Carrier |
| 6 March 2026 | 5 hours 32 minutes | Late-arriving aircraft |
| 14 July 2026 | 5 hours 16 minutes | Late-arriving aircraft |
| 25 December 2025 | 4 hours 48 minutes | Carrier |
| 6 March 2026 | 4 hours 40 minutes | Late-arriving aircraft |
Delay causes
Why Southwest runs late on this route
Late-arriving aircraft accounts for 73% of the 8,519 delay minutes carriers reported here, and the remaining four split what is left.
- 73%Late-arriving aircraft
- 18%Carrier
- 7%National Airspace System
- 2%Extreme weather
- 0%Security
73% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,519 reported delay minutes here, that single category outweighs weather by 36 to one. The split is drawn from 8,519 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 96.9% on time here.
Cancellations sit at 0.92% against a national 1.89%, which is ordinary. Diversions add another 0.35%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.8% 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 833 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 return leg is a different operation and performs like one: it runs 73.1% on time across 866 flights, 10 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 10 points of difference.
One caution: this is a thin sample. 866 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 Southwest on OKC to PHX
Put together: treat all of this as provisional. 866 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 82.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 855 completed flights over 12 months sit behind that.
Related
Where to go next
- OKC to PHX, every carrier
- Southwest on PHX to OKC, the return leg
- American Airlines on OKC to PHX86.2%
- SkyWest Airlines on OKC to PHX77.3%
- Southwest Airlines network-wide record
- Phoenix Sky Harbor International (PHX) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.