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Route on-time record

OKC to HOU: most on-time flights and the best time to fly

Oklahoma City (OKC Will Rogers World Airport) to Houston (William P. Hobby Airport). 1,270 nonstop flights in Jun 2025 to May 2026, 82% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Southwest 2418 at 8:05 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

OKC → HOU

Oklahoma City to Houston: 1,270 nonstop flights a year

On time (12 months)

82%

Cancelled

0.9%

avg delay 11 min

Best time to leave

Before 9 AM

94% on time vs 68% 3 to 6 PM

Most reliable airline

Southwest

81% chance on time

Check OKC to HOU fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Southwest 2418

    8:05 AM → 9:40 AM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    91%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 95% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; 3 to 6 PM: 68%).
    • Short track record (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find Southwest 2418 fares Opens this date on Aviasales

  2. #2 · Southwest 356

    7:45 AM → 9:20 AM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 94% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; 3 to 6 PM: 68%).
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 356 fares Opens this date on Aviasales

  3. #3 · Southwest 3617

    12:15 PM → 1:50 PM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 244; its record covers all of them.

    78%

    chance on time

    On time (history)
    76%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 76% of the time (83 flights, Jun 2025 to May 2026).
    • Never cancelled in 83 scheduled flights.
    • Lands inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 83 flights

    Find Southwest 3617 fares Opens this date on Aviasales

  4. #4 · Southwest 735

    5:15 PM → 6:50 PM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    71%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 71% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's least on-time window (3 to 6 PM: 68% on time; Before 9 AM: 94%).
    • 57% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 55 flights

    Find Southwest 735 fares Opens this date on Aviasales

  5. #5 · Southwest 3963

    6:20 PM → 7:50 PM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    70%

    chance on time

    On time (history)
    58%
    Cancelled
    0.0%
    Avg arrival delay
    31 min
    • Arrived on time 58% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • 71% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 3963 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines81%

    1,270 flights · 82% on time as flown · 0.9% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM94%

    365 flights · avg delay 4 min

  • 9 AM to noon87%

    184 flights · avg delay 7 min

  • Noon to 3 PM81%

    264 flights · avg delay 11 min

  • 3 to 6 PM68%

    198 flights · avg delay 20 min

  • 6 to 9 PM72%

    259 flights · avg delay 17 min

Best day: Monday (85%). Worst: Sunday (80%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
88
F
90
M
85
A
80
M
76
J
76
J
76
A
84
S
87
O
86
N
83
D
88

What delays this route

  • Late-arriving aircraft55%
  • Air traffic control and airport volume28%
  • Airline (crew, maintenance, boarding)12%
  • Severe weather4%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

OKC to HOU questions

What time of day is best to fly OKC to HOU?
Before 9 AM: 94% of flights arrived on time, against 68% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from OKC to HOU?
Southwest, with a season-adjusted 81% chance of operating and arriving on time over 1,270 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on OKC to HOU?
May (76% on time); the best was February (90%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from OKC

Live status: FAA delays and ground stops