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Route on-time record

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

Oklahoma City (OKC Will Rogers World Airport) to Denver (Denver International Airport). 3,171 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Southwest 3749 at 6:15 AM.

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

OKC → DEN

Oklahoma City to Denver: 3,171 nonstop flights a year

On time (12 months)

78%

Cancelled

0.7%

avg delay 16 min

Best time to leave

Before 9 AM

91% on time vs 60% 3 to 6 PM

Most reliable airline

SkyWest

80% chance on time

Check OKC to DEN fares

Lowest nonstop fare seen in the next two months: $197 (Frontier 1927 on 2026-10-27). 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 3749

    6:15 AM → 6:55 AM1h 40m nonstop

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

    93%

    chance on time

    On time (history)
    100%
    Cancelled
    3.2%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (30 flights, Jun 2025 to May 2026).
    • Cancelled 3.2% of the time (1 of 31).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 60%).
    • Short track record (30 flights), so its score leans on the airline's record at this hour.

    Limited track record · 30 flights

    Find Southwest 3749 fares Opens this date on Aviasales

  2. #2 · SkyWest 4751 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:00 AM → 7:01 AM2h 00m nonstop

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

    92%

    chance on time

    On time (history)
    93%
    Cancelled
    0.8%
    Avg arrival delay
    8 min
    • Arrived on time 93% of the time (359 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 60%).

    Strong track record · 359 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  3. #3 · Southwest 1906

    6:40 AM → 7:20 AM1h 40m nonstop

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

    92%

    chance on time

    On time (history)
    97%
    Cancelled
    3.0%
    Avg arrival delay
    3 min
    • Arrived on time 97% of the time (32 flights, Jun 2025 to May 2026).
    • Cancelled 3.0% of the time (1 of 33).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 60%).
    • Short track record (32 flights), so its score leans on the airline's record at this hour.

    Limited track record · 32 flights

    Find Southwest 1906 fares Opens this date on Aviasales

  4. #4 · SkyWest 5490 · sold as United Express, Delta Connection, American Eagle or Alaska

    11:15 AM → 12:16 PM1h 57m nonstop

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

    82%

    chance on time

    On time (history)
    85%
    Cancelled
    1.1%
    Avg arrival delay
    13 min
    • Arrived on time 85% of the time (280 flights, Jun 2025 to May 2026).

    Strong track record · 280 flights

    Find 11:15 AM flight fares Opens this date on Aviasales

  5. #5 · Frontier 1927

    8:30 PM → 9:19 PM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-04.

    79%

    chance on time

    On time (history)
    81%
    Cancelled
    0.4%
    Avg arrival delay
    17 min
    • Arrived on time 81% of the time (226 flights, Jun 2025 to May 2026).
    • 59% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 226 flights

    Find Frontier 1927 fares Opens this date on Aviasales

  6. #6 · Southwest 1388

    1:05 PM → 1:45 PM1h 40m nonstop

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

    79%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 81% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 1388 fares Opens this date on Aviasales

  7. #7 · Southwest 1107

    1:30 PM → 2:10 PM1h 40m nonstop

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

    78%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 80% of the time (50 flights, Jun 2025 to May 2026).
    • Never cancelled in 50 scheduled flights.
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (50 flights), so its score leans on the airline's record at this hour.

    Limited track record · 50 flights

    Find Southwest 1107 fares Opens this date on Aviasales

  8. #8 · SkyWest 5851 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:18 PM → 8:17 PM1h 59m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    76%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 93% of the time (15 flights, Jun 2025 to May 2026).
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find 7:18 PM flight fares Opens this date on Aviasales

  9. #9 · Southwest 2354

    10:25 AM → 11:05 AM1h 40m nonstop

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

    75%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 67% of the time (15 flights, Jun 2025 to May 2026).
    • 64% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 2354 fares Opens this date on Aviasales

  10. #10 · United 2307

    9:15 AM → 10:01 AM1h 46m nonstop

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

    72%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find United 2307 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)80%

    1,331 flights · 80% on time as flown · 0.5% cancel

  • Southwest Airlines76%

    1,223 flights · 76% on time as flown · 0.8% cancel

  • Frontier Airlines75%

    357 flights · 76% on time as flown · 1.0% cancel

  • United Airlines72%

    260 flights · 76% on time as flown · 0.8% cancel

On time by departure time

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

  • Before 9 AM91%

    922 flights · avg delay 7 min

  • 9 AM to noon80%

    963 flights · avg delay 11 min

  • Noon to 3 PM85%

    175 flights · avg delay 10 min

  • 3 to 6 PM60%

    515 flights · avg delay 31 min

  • 6 to 9 PM65%

    546 flights · avg delay 25 min

Best day: Wednesday (81%). Worst: Thursday (76%).

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
81
F
80
M
83
A
79
M
72
J
65
J
72
A
73
S
80
O
81
N
86
D
82

What delays this route

  • Air traffic control and airport volume36%
  • Airline (crew, maintenance, boarding)30%
  • Late-arriving aircraft29%
  • Severe weather5%

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 DEN questions

What time of day is best to fly OKC to DEN?
Before 9 AM: 91% of flights arrived on time, against 60% 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 DEN?
SkyWest, with a season-adjusted 80% chance of operating and arriving on time over 1,331 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 DEN?
June (65% on time); the best was November (86%), 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