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Route on-time record

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

Houston (William P. Hobby Airport) to Memphis (Memphis International Airport). 811 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Southwest 2374 at 10:20 AM.

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

HOU → MEM

Houston to Memphis: 811 nonstop flights a year

On time (12 months)

73%

Cancelled

1.1%

avg delay 14 min

Best time to leave

9 AM to noon

83% on time vs 67% 3 to 6 PM

Most reliable airline

Southwest

72% chance on time

Check HOU 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 · Southwest 2374

    10:20 AM → 11:50 AM1h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    79%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 82% of the time (39 flights, Jun 2025 to May 2026).
    • Never cancelled in 39 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 83% on time; 3 to 6 PM: 67%).
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).

    Limited track record · 39 flights

    Find Southwest 2374 fares Opens this date on Aviasales

  2. #2 · Southwest 570

    10:10 AM → 11:40 AM1h 30m nonstop

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

    76%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 71% of the time (28 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 83% on time; 3 to 6 PM: 67%).
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • Short track record (28 flights), so its score leans on the airline's record at this hour.

    Limited track record · 28 flights

    Find Southwest 570 fares Opens this date on Aviasales

  3. #3 · Southwest 2023

    7:35 PM → 9:10 PM1h 35m nonstop

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

    75%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 78% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • Short track record (54 flights), so its score leans on the airline's record at this hour.

    Limited track record · 54 flights

    Find Southwest 2023 fares Opens this date on Aviasales

  4. #4 · Southwest 2730

    2:55 PM → 4:25 PM1h 30m nonstop

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

    65%

    chance on time

    On time (history)
    57%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 57% of the time (28 flights, Jun 2025 to May 2026).
    • Departs inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.
    • 64% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (28 flights), so its score leans on the airline's record at this hour.

    Limited track record · 28 flights

    Find Southwest 2730 fares Opens this date on Aviasales

  5. #5 · Southwest 2376

    2:20 PM → 3:50 PM1h 30m nonstop

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

    61%

    chance on time

    On time (history)
    53%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 53% of the time (30 flights, Jun 2025 to May 2026).
    • Never cancelled in 30 scheduled flights.
    • Departs inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.
    • Short track record (30 flights), so its score leans on the airline's record at this hour.

    Limited track record · 30 flights

    Find Southwest 2376 fares Opens this date on Aviasales

  6. #6 · Southwest 4539

    8:35 PM → 10:05 PM1h 30m nonstop

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

    58%

    chance on time

    On time (history)
    43%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 43% of the time (28 flights, Jun 2025 to May 2026).
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • 76% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (28 flights), so its score leans on the airline's record at this hour.

    Limited track record · 28 flights

    Find Southwest 4539 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines72%

    811 flights · 73% on time as flown · 1.1% cancel

On time by departure time

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

  • 9 AM to noon83%

    290 flights · avg delay 7 min

  • Noon to 3 PM68%

    114 flights · avg delay 14 min

  • 3 to 6 PM67%

    75 flights · avg delay 19 min

  • 6 to 9 PM68%

    326 flights · avg delay 19 min

Best day: Tuesday (83%). Worst: Thursday (74%).

Smarter routing

Nearby airports that run more on time

  • IAH → MEM 77% chance on time

    George Bush Intercontinental Airport to Memphis International Airport · 1,101 flights a year · 24 mi from your airports · yours: 72%

    Rank flightsFares

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
86
F
84
M
71
A
73
M
73
J
61
J
68
A
77
S
83
O
82
N
83
D
81

What delays this route

  • Late-arriving aircraft59%
  • Airline (crew, maintenance, boarding)27%
  • Air traffic control and airport volume10%
  • Severe weather4%

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

HOU to MEM questions

What time of day is best to fly HOU to MEM?
9 AM to noon: 83% of flights arrived on time, against 67% for departures 3 to 6 PM.
Which airline is most on time from HOU to MEM?
Southwest, with a season-adjusted 72% chance of operating and arriving on time over 811 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 HOU to MEM?
June (61% on time); the best was January (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 HOU

Live status: FAA delays and ground stops