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Route on-time record

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

Houston (George Bush Intercontinental Airport) to McAllen (McAllen Miller International Airport). 633 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was United 1950 at 9:38 PM.

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

IAH → MFE

Houston to McAllen: 633 nonstop flights a year

On time (12 months)

78%

Cancelled

0.8%

avg delay 18 min

Best time to leave

6 to 9 PM

82% on time vs 60% 3 to 6 PM

Most reliable airline

United

79% chance on time

Check IAH to MFE 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 · United 1950

    9:38 PM → 10:59 PM1h 22m nonstop

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

    80%

    chance on time

    On time (history)
    80%
    Cancelled
    0.9%
    Avg arrival delay
    16 min
    • Arrived on time 80% of the time (106 flights, Jun 2025 to May 2026).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Moderate track record · 106 flights

    Find United 1950 fares Opens this date on Aviasales

  2. #2 · SkyWest 5424 · sold as United Express, Delta Connection, American Eagle or Alaska

    2:55 PM → 4:24 PM1h 29m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as SkyWest 5516; its record covers all of them.

    74%

    chance on time

    On time (history)
    73%
    Cancelled
    2.7%
    Avg arrival delay
    23 min
    • Arrived on time 73% of the time (71 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.

    Moderate track record · 71 flights

    Find 2:55 PM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 5368 · sold as United Express, Delta Connection, American Eagle or Alaska

    4:30 PM → 5:53 PM1h 23m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5327; its record covers all of them.

    71%

    chance on time

    On time (history)
    63%
    Cancelled
    3.4%
    Avg arrival delay
    28 min
    • Arrived on time 63% of the time (27 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 60% on time; 6 to 9 PM: 82%).
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
    • Short track record (27 flights), so its score leans on the airline's record at this hour.

    Limited track record · 27 flights

    Find 4:30 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines79%

    405 flights · 80% on time as flown · 0.6% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)76%

    228 flights · 76% on time as flown · 1.1% cancel

On time by departure time

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

  • Noon to 3 PM79%

    158 flights · avg delay 15 min

  • 3 to 6 PM60%

    37 flights · avg delay 32 min

  • 6 to 9 PM82%

    268 flights · avg delay 16 min

  • After 9 PM76%

    168 flights · avg delay 21 min

Best day: Wednesday (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
89
F
87
M
78
A
82
M
66
J
62
J
61
A
78
S
84
O
85
N
83
D
80

What delays this route

  • Airline (crew, maintenance, boarding)44%
  • Late-arriving aircraft41%
  • Air traffic control and airport volume10%
  • Severe weather6%

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 MFE questions

What time of day is best to fly IAH to MFE?
6 to 9 PM: 82% of flights arrived on time, against 60% for departures 3 to 6 PM.
Which airline is most on time from IAH to MFE?
United, with a season-adjusted 79% chance of operating and arriving on time over 405 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 MFE?
July (61% on time); the best was January (89%), 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