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Route on-time record

IAH to MCO: most on-time flights and the best time to fly

Houston (George Bush Intercontinental Airport) to Orlando (Orlando International Airport). 3,709 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was United 1458 at 8:20 AM.

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

IAH → MCO

Houston to Orlando: 3,709 nonstop flights a year

On time (12 months)

81%

Cancelled

1.1%

avg delay 17 min

Best time to leave

Before 9 AM

93% on time vs 73% 6 to 9 PM

Most reliable airline

United

84% chance on time

Check IAH to MCO fares

Lowest nonstop fare seen in the next two months: $131 (Frontier 2418 on 2026-11-05). 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 · United 1458

    8:20 AM → 11:46 AM2h 26m nonstop

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

    94%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (18 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find United 1458 fares Opens this date on Aviasales

  2. #2 · United 2245

    7:20 AM → 10:46 AM2h 25m nonstop

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

    93%

    chance on time

    On time (history)
    94%
    Cancelled
    0.3%
    Avg arrival delay
    3 min
    • Arrived on time 94% of the time (359 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Strong track record · 359 flights

    Find United 2245 fares Opens this date on Aviasales

  3. #3 · United 1229

    8:30 AM → 11:56 AM2h 26m nonstop

    Local times, typical schedule. Last flown 2026-04-29.

    91%

    chance on time

    On time (history)
    93%
    Cancelled
    1.4%
    Avg arrival delay
    5 min
    • Arrived on time 93% of the time (72 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Moderate track record · 72 flights

    Find United 1229 fares Opens this date on Aviasales

  4. #4 · United 2310

    10:15 AM → 1:42 PM2h 27m nonstop

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

    87%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 89% of the time (87 flights, Jun 2025 to May 2026).
    • Never cancelled in 88 scheduled flights.
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
    • Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 87 flights

    Find United 2310 fares Opens this date on Aviasales

  5. #5 · United 2662

    12:25 PM → 3:47 PM2h 27m nonstop

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

    85%

    chance on time

    On time (history)
    85%
    Cancelled
    0.5%
    Avg arrival delay
    11 min
    • Arrived on time 85% of the time (356 flights, Jun 2025 to May 2026).
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
    • Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 356 flights

    Find United 2662 fares Opens this date on Aviasales

  6. #6 · Spirit 2228

    7:00 AM → 10:13 AM2h 13m nonstop

    Local times, typical schedule. Last flown 2026-05-01.

    83%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 81% of the time (16 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Spirit 2228 fares Opens this date on Aviasales

  7. #7 · United 2451

    6:32 PM → 9:59 PM2h 26m nonstop

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

    80%

    chance on time

    On time (history)
    80%
    Cancelled
    0.9%
    Avg arrival delay
    15 min
    • Arrived on time 80% of the time (341 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 73% on time; Before 9 AM: 93%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Strong track record · 341 flights

    Find United 2451 fares Opens this date on Aviasales

  8. #8 · Spirit 3410

    8:00 AM → 11:15 AM2h 15m nonstop

    Local times, typical schedule. Last flown 2026-04-13.

    79%

    chance on time

    On time (history)
    67%
    Cancelled
    14.3%
    Avg arrival delay
    13 min
    • Arrived on time 67% of the time (12 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
    • Short track record (12 flights), so its score leans on the airline's record at this hour.

    Limited track record · 12 flights

    Find Spirit 3410 fares Opens this date on Aviasales

  9. #9 · United 1571

    4:37 PM → 8:04 PM2h 27m nonstop

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

    78%

    chance on time

    On time (history)
    79%
    Cancelled
    1.2%
    Avg arrival delay
    16 min
    • Arrived on time 79% of the time (326 flights, Jun 2025 to May 2026).
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.

    Strong track record · 326 flights

    Find United 1571 fares Opens this date on Aviasales

  10. #10 · United 496

    2:20 PM → 5:47 PM2h 27m nonstop

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

    78%

    chance on time

    On time (history)
    78%
    Cancelled
    0.6%
    Avg arrival delay
    20 min
    • Arrived on time 78% of the time (356 flights, Jun 2025 to May 2026).
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
    • Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 356 flights

    Find United 496 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines84%

    2,480 flights · 84% on time as flown · 0.8% cancel

  • Spirit Airlines73%

    714 flights · 75% on time as flown · 2.0% cancel

  • Frontier Airlines70%

    515 flights · 70% on time as flown · 1.0% cancel

On time by departure time

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

  • Before 9 AM93%

    769 flights · avg delay 5 min

  • 9 AM to noon88%

    463 flights · avg delay 11 min

  • Noon to 3 PM79%

    909 flights · avg delay 19 min

  • 3 to 6 PM74%

    593 flights · avg delay 21 min

  • 6 to 9 PM73%

    903 flights · avg delay 23 min

Best day: Tuesday (80%). Worst: Sunday (74%).

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
82
F
86
M
77
A
83
M
72
J
61
J
61
A
69
S
85
O
85
N
85
D
83

What delays this route

  • Late-arriving aircraft38%
  • Airline (crew, maintenance, boarding)32%
  • Air traffic control and airport volume25%
  • 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

IAH to MCO questions

What time of day is best to fly IAH to MCO?
Before 9 AM: 93% of flights arrived on time, against 73% for departures 6 to 9 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 IAH to MCO?
United, with a season-adjusted 84% chance of operating and arriving on time over 2,480 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 IAH to MCO?
July (61% on time); the best was February (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 IAH

Live status: FAA delays and ground stops