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Route on-time record

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

Houston (George Bush Intercontinental Airport) to Memphis (Memphis International Airport). 1,101 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was SkyWest 5758 at 11:55 AM.

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

IAH → MEM

Houston to Memphis: 1,101 nonstop flights a year

On time (12 months)

78%

Cancelled

0.9%

avg delay 16 min

Best time to leave

Before 9 AM

85% on time vs 66% 3 to 6 PM

Most reliable airline

SkyWest

81% chance on time

Check IAH to MEM 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 · SkyWest 5758 · sold as United Express, Delta Connection, American Eagle or Alaska

    11:55 AM → 1:35 PM1h 40m nonstop

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

    83%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 84% of the time (245 flights, Jun 2025 to May 2026).
    • Never cancelled in 246 scheduled flights.
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Strong track record · 245 flights

    Find 11:55 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 5360 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:20 AM → 9:05 AM1h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5329; its record covers all of them.

    82%

    chance on time

    On time (history)
    82%
    Cancelled
    1.4%
    Avg arrival delay
    12 min
    • Arrived on time 82% of the time (142 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 85% on time; 3 to 6 PM: 66%).
    • Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).

    Moderate track record · 142 flights

    Find 7:20 AM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 5228 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:20 PM → 2:01 PM1h 41m nonstop

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

    76%

    chance on time

    On time (history)
    63%
    Cancelled
    0.0%
    Avg arrival delay
    28 min
    • Arrived on time 63% of the time (32 flights, Jun 2025 to May 2026).
    • Never cancelled in 32 scheduled flights.
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
    • Short track record (32 flights), so its score leans on the airline's record at this hour.

    Limited track record · 32 flights

    Find 12:20 PM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 5229 · sold as United Express, Delta Connection, American Eagle or Alaska

    4:35 PM → 6:15 PM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-04-28. Same departure also flew as SkyWest 5361; its record covers all of them.

    70%

    chance on time

    On time (history)
    63%
    Cancelled
    1.3%
    Avg arrival delay
    23 min
    • Arrived on time 63% of the time (75 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 66% on time; Before 9 AM: 85%).
    • Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 75 flights

    Find 4:35 PM flight fares Opens this date on Aviasales

  5. #5 · United 1794

    8:00 PM → 9:40 PM1h 40m nonstop

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

    68%

    chance on time

    On time (history)
    69%
    Cancelled
    1.5%
    Avg arrival delay
    20 min
    • Arrived on time 69% of the time (334 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).
    • 51% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 334 flights

    Find United 1794 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)81%

    742 flights · 82% on time as flown · 0.7% cancel

  • United Airlines70%

    359 flights · 69% on time as flown · 1.2% cancel

On time by departure time

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

  • Before 9 AM85%

    343 flights · avg delay 11 min

  • Noon to 3 PM83%

    295 flights · avg delay 15 min

  • 3 to 6 PM66%

    74 flights · avg delay 20 min

  • 6 to 9 PM71%

    354 flights · avg delay 19 min

Best day: Wednesday (85%). Worst: Friday (69%).

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
81
M
71
A
74
M
73
J
60
J
63
A
75
S
85
O
80
N
82
D
75

What delays this route

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, boarding)38%
  • Air traffic control and airport volume12%
  • 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 MEM questions

What time of day is best to fly IAH to MEM?
Before 9 AM: 85% of flights arrived on time, against 66% 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 IAH to MEM?
SkyWest, with a season-adjusted 81% chance of operating and arriving on time over 742 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 MEM?
June (60% on time); the best was September (85%), 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