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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

DAL → HOU

Dallas to Houston: 4,075 nonstop flights a year

On time (12 months)

74%

Cancelled

1.8%

avg delay 15 min

Best time to leave

Before 9 AM

90% on time vs 53% after 9 PM

Most reliable airline

Southwest

73% chance on time

Check DAL to HOU fares

Lowest nonstop fare seen in the next two months: $153 (Southwest 1628 on 2026-10-22). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Best trips

28 nonstop, 12 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.

  1. Best overall#1 · Nonstop · 1h 10m

    6:00 AM → 7:10 AM

    92%

    arrive on time

    6:00 AM DAL → 7:10 AM HOU1h 10m

    Southwest 1628

    Boeing 737 MAX 8 or 737-800 · 3–20 yrs old
    93% on time · 1.6% cancel
    Find Southwest 1628 fares Opens this date on Aviasales

  2. #2 · Nonstop · 1h 15m

    7:30 AM → 8:45 AM

    90%

    arrive on time

    7:30 AM DAL → 8:45 AM HOU1h 15m

    Southwest 3

    Boeing 737 MAX 8 · 4–19 yrs old
    92% on time · 1.5% cancel
    Find Southwest 3 fares Opens this date on Aviasales

  3. #3 · Nonstop · 1h 10m

    7:00 AM → 8:10 AM

    90%

    arrive on time

    7:00 AM DAL → 8:10 AM HOU1h 10m

    Southwest 1

    Boeing 737-700 or 737-800 · 2–22 yrs old
    90% on time · 0.7% cancel
    Find Southwest 1 fares Opens this date on Aviasales

  4. #4 · Nonstop · 1h 20m

    11:00 AM → 12:20 PM

    88%

    arrive on time

    11:00 AM DAL → 12:20 PM HOU1h 20m

    Southwest 17

    Boeing 737-800 or 737 MAX 8 · 2–15 yrs old
    90% on time · 2.8% cancel
    Find Southwest 17 fares Opens this date on Aviasales

  5. #5 · Nonstop · 1h 15m

    10:00 AM → 11:15 AM

    85%

    arrive on time

    10:00 AM DAL → 11:15 AM HOU1h 15m

    Southwest 15

    Boeing 737 MAX 8 or 737-800 · 1–24 yrs old
    87% on time · 2.2% cancel
    Find Southwest 15 fares Opens this date on Aviasales

  6. #6 · Nonstop · 1h 20m

    8:30 AM → 9:50 AM

    84%

    arrive on time

    8:30 AM DAL → 9:50 AM HOU1h 20m

    Southwest 7

    Boeing 737-700 · 5–22 yrs old
    86% on time · 1.4% cancel
    Find Southwest 7 fares Opens this date on Aviasales

  7. #7 · Nonstop · 1h 15m

    10:30 AM → 11:45 AM

    83%

    arrive on time

    10:30 AM DAL → 11:45 AM HOU1h 15m

    Southwest 23

    Boeing 737-700 · 2–23 yrs old
    85% on time · 1.8% cancel
    Find Southwest 23 fares Opens this date on Aviasales

  8. #8 · Nonstop · 1h 20m

    9:30 AM → 10:50 AM

    82%

    arrive on time

    9:30 AM DAL → 10:50 AM HOU1h 20m

    Southwest 11

    Boeing 737-700 · 15–23 yrs old
    84% on time · 1.4% cancel
    Find Southwest 11 fares Opens this date on Aviasales

  9. #9 · Nonstop · 1h 20m

    11:30 AM → 12:45 PM

    80%

    arrive on time

    11:30 AM DAL → 12:45 PM HOU1h 20m

    Southwest 19

    Boeing 737-700 or 737-800 · 5–22 yrs old
    83% on time · 3.5% cancel
    Find Southwest 19 fares Opens this date on Aviasales

  10. #10 · Nonstop · 1h 15m

    8:10 AM → 9:25 AM

    80%

    arrive on time

    8:10 AM DAL → 9:25 AM HOU1h 15m

    Southwest 5

    Boeing 737 MAX 8 or 737-700 · 2–21 yrs old
    82% on time · 1.9% cancel
    Find Southwest 5 fares Opens this date on Aviasales

Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines73%

    4,075 flights · 74% on time as flown · 1.8% cancel

On time by departure time

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

  • Before 9 AM90%

    964 flights · avg delay 6 min

  • 9 AM to noon87%

    736 flights · avg delay 9 min

  • Noon to 3 PM71%

    689 flights · avg delay 17 min

  • 3 to 6 PM62%

    685 flights · avg delay 22 min

  • 6 to 9 PM63%

    784 flights · avg delay 23 min

  • After 9 PM53%

    217 flights · avg delay 25 min

Best day: Tuesday (82%). Worst: Sunday (73%).

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