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Route on-time record

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

Houston (William P. Hobby Airport) to Austin (Austin Bergstrom International Airport). 1,446 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 0.3% were cancelled. The most reliable flight number was Southwest 4086 at 10:15 AM.

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

HOU → AUS

Houston to Austin: 1,446 nonstop flights a year

On time (12 months)

74%

Cancelled

0.3%

avg delay 14 min

Best time to leave

Before 9 AM

93% on time vs 58% 3 to 6 PM

Most reliable airline

Southwest

74% chance on time

Check HOU to AUS fares

Lowest nonstop fare seen in the next two months: $333 (Southwest 433 on 2026-10-27). 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 4086

    10:15 AM → 11:10 AM55m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 939; its record covers all of them.

    86%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 90% of the time (41 flights, Jun 2025 to May 2026).
    • Never cancelled in 41 scheduled flights.
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 41 flights

    Find Southwest 4086 fares Opens this date on Aviasales

  2. #2 · Southwest 2750

    11:00 AM → 12:00 PM1h 00m nonstop

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

    85%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 85% of the time (47 flights, Jun 2025 to May 2026).
    • Never cancelled in 47 scheduled flights.
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 47 flights

    Find Southwest 2750 fares Opens this date on Aviasales

  3. #3 · Southwest 1853

    8:10 AM → 9:05 AM55m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    83%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 58%).
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 1853 fares Opens this date on Aviasales

  4. #4 · Southwest 142

    10:40 AM → 11:35 AM55m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    80%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 75% of the time (8 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).
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
    • 63% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 8 flights

    Find Southwest 142 fares Opens this date on Aviasales

  5. #5 · Southwest 2075

    10:40 PM → 11:35 PM55m nonstop

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

    66%

    chance on time

    On time (history)
    64%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 64% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 33 flights

    Find Southwest 2075 fares Opens this date on Aviasales

  6. #6 · Southwest 2295

    9:50 PM → 10:45 PM55m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    63%

    chance on time

    On time (history)
    54%
    Cancelled
    2.1%
    Avg arrival delay
    20 min
    • Arrived on time 54% of the time (46 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).
    • 51% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (46 flights), so its score leans on the airline's record at this hour.

    Limited track record · 46 flights

    Find Southwest 2295 fares Opens this date on Aviasales

  7. #7 · Southwest 4055

    2:40 PM → 3:35 PM55m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1960; its record covers all of them.

    62%

    chance on time

    On time (history)
    52%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 52% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Departs inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.

    Limited track record · 54 flights

    Find Southwest 4055 fares Opens this date on Aviasales

  8. #8 · Southwest 3780

    3:05 PM → 4:00 PM55m nonstop

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

    60%

    chance on time

    On time (history)
    45%
    Cancelled
    0.0%
    Avg arrival delay
    31 min
    • Arrived on time 45% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Leaves in this route's least on-time window (3 to 6 PM: 58% on time; Before 9 AM: 93%).
    • Departs inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.

    Limited track record · 33 flights

    Find Southwest 3780 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines74%

    1,446 flights · 74% on time as flown · 0.3% cancel

On time by departure time

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

  • Before 9 AM93%

    204 flights · avg delay 4 min

  • 9 AM to noon87%

    376 flights · avg delay 7 min

  • Noon to 3 PM67%

    213 flights · avg delay 19 min

  • 3 to 6 PM58%

    97 flights · avg delay 20 min

  • 6 to 9 PM68%

    320 flights · avg delay 18 min

  • After 9 PM60%

    236 flights · avg delay 22 min

Best day: Tuesday (86%). Worst: Sunday (71%).

Smarter routing

Nearby airports that run more on time

  • IAH → AUS 78% chance on time

    George Bush Intercontinental Airport to Austin Bergstrom International Airport · 2,674 flights a year · 24 mi from your airports · yours: 74%

    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
84
F
87
M
78
A
76
M
66
J
73
J
70
A
83
S
85
O
78
N
79
D
77

What delays this route

  • Late-arriving aircraft52%
  • Airline (crew, maintenance, boarding)27%
  • Air traffic control and airport volume18%
  • Severe weather2%

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 AUS questions

What time of day is best to fly HOU to AUS?
Before 9 AM: 93% of flights arrived on time, against 58% 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 HOU to AUS?
Southwest, with a season-adjusted 74% chance of operating and arriving on time over 1,446 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 AUS?
May (66% on time); the best was February (87%), 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