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Route on-time record

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

Orlando (Orlando International Airport) to Houston (George Bush Intercontinental Airport). 3,710 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 468 at 7:00 AM.

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

MCO → IAH

Orlando to Houston: 3,710 nonstop flights a year

On time (12 months)

81%

Cancelled

1.1%

avg delay 16 min

Best time to leave

Before 9 AM

91% on time vs 70% 6 to 9 PM

Most reliable airline

United

83% chance on time

Check MCO to IAH fares

Lowest nonstop fare seen in the next two months: $172 (Frontier 1417 on 2026-10-21). 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 468

    7:00 AM → 8:49 AM2h 49m nonstop

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

    94%

    chance on time

    On time (history)
    96%
    Cancelled
    0.9%
    Avg arrival delay
    3 min
    • Arrived on time 96% of the time (108 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 70%).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).

    Moderate track record · 108 flights

    Find United 468 fares Opens this date on Aviasales

  2. #2 · United 1493

    11:51 AM → 1:40 PM2h 49m nonstop

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

    93%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 95% of the time (109 flights, Jun 2025 to May 2026).
    • Never cancelled in 109 scheduled flights.
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).
    • Lands inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 109 flights

    Find United 1493 fares Opens this date on Aviasales

  3. #3 · Frontier 1417

    6:45 AM → 8:50 AM2h 53m nonstop

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

    87%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 85% of the time (239 flights, Jun 2025 to May 2026).
    • Never cancelled in 240 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 70%).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).

    Strong track record · 239 flights

    Find Frontier 1417 fares Opens this date on Aviasales

  4. #4 · United 2406

    1:15 PM → 3:04 PM2h 49m nonstop

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

    87%

    chance on time

    On time (history)
    87%
    Cancelled
    0.3%
    Avg arrival delay
    13 min
    • Arrived on time 87% of the time (326 flights, Jun 2025 to May 2026).
    • Departs inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands 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 2406 fares Opens this date on Aviasales

  5. #5 · United 2611

    9:00 AM → 10:45 AM2h 45m nonstop

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

    86%

    chance on time

    On time (history)
    89%
    Cancelled
    0.7%
    Avg arrival delay
    7 min
    • Arrived on time 89% of the time (137 flights, Jun 2025 to May 2026).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).

    Moderate track record · 137 flights

    Find United 2611 fares Opens this date on Aviasales

  6. #6 · United 2456

    3:06 PM → 4:55 PM2h 49m nonstop

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

    85%

    chance on time

    On time (history)
    89%
    Cancelled
    0.6%
    Avg arrival delay
    11 min
    • Arrived on time 89% of the time (158 flights, Jun 2025 to May 2026).
    • Departs inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 158 flights

    Find United 2456 fares Opens this date on Aviasales

  7. #7 · Spirit 2229

    11:18 AM → 12:53 PM2h 35m nonstop

    Local times, typical schedule. Last flown 2026-04-30.

    77%

    chance on time

    On time (history)
    71%
    Cancelled
    6.7%
    Avg arrival delay
    26 min
    • Arrived on time 71% of the time (14 flights, Jun 2025 to May 2026).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).
    • Lands inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
    • 82% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 14 flights

    Find Spirit 2229 fares Opens this date on Aviasales

  8. #8 · Frontier 3469

    4:53 PM → 8:20 PM2h 56m nonstop

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

    76%

    chance on time

    On time (history)
    78%
    Cancelled
    0.9%
    Avg arrival delay
    17 min
    • Arrived on time 78% of the time (227 flights, Jun 2025 to May 2026).
    • Departs inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 227 flights

    Find Frontier 3469 fares Opens this date on Aviasales

  9. #9 · United 2215

    7:01 PM → 8:50 PM2h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1179; its record covers all of them.

    73%

    chance on time

    On time (history)
    71%
    Cancelled
    1.1%
    Avg arrival delay
    30 min
    • Arrived on time 71% of the time (281 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 70% on time; Before 9 AM: 91%).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).

    Strong track record · 281 flights

    Find United 2215 fares Opens this date on Aviasales

  10. #10 · Spirit 920

    8:31 AM → 10:18 AM2h 47m nonstop

    Local times, typical schedule. Last flown 2026-04-14.

    72%

    chance on time

    On time (history)
    77%
    Cancelled
    2.5%
    Avg arrival delay
    17 min
    • Arrived on time 77% of the time (78 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 70%).
    • Departs outside MCO's trouble window (1 PM to 7 PM, when 76% of its 89 ground stops and delay programs started).

    Moderate track record · 78 flights

    Find Spirit 920 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines83%

    2,481 flights · 83% on time as flown · 0.8% cancel

  • Frontier Airlines82%

    515 flights · 82% on time as flown · 0.5% cancel

  • Spirit Airlines72%

    714 flights · 73% on time as flown · 2.2% cancel

On time by departure time

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

  • Before 9 AM91%

    709 flights · avg delay 6 min

  • 9 AM to noon88%

    809 flights · avg delay 10 min

  • Noon to 3 PM85%

    595 flights · avg delay 13 min

  • 3 to 6 PM73%

    940 flights · avg delay 24 min

  • 6 to 9 PM70%

    538 flights · avg delay 32 min

  • After 9 PM71%

    119 flights · avg delay 19 min

Best day: Tuesday (83%). 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
81
F
86
M
76
A
86
M
72
J
65
J
65
A
74
S
86
O
85
N
85
D
82

What delays this route

  • Air traffic control and airport volume33%
  • Late-arriving aircraft32%
  • Airline (crew, maintenance, boarding)26%
  • Severe weather9%

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

MCO to IAH questions

What time of day is best to fly MCO to IAH?
Before 9 AM: 91% of flights arrived on time, against 70% 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 MCO to IAH?
United, with a season-adjusted 83% chance of operating and arriving on time over 2,481 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 MCO to IAH?
July (65% 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 MCO

Live status: FAA delays and ground stops