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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.

BHM → DAL

Birmingham to Dallas: 973 nonstop flights a year

On time (12 months)

81%

Cancelled

0.9%

avg delay 11 min

Best time to leave

Before 9 AM

93% on time vs 62% 6 to 9 PM

Most reliable airline

Southwest

80% chance on time

Check BHM to DAL fares

Lowest nonstop fare seen in the next two months: $155 (Southwest 225 on 2026-10-22). 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 4233

    6:20 AM → 8:15 AM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 694; its record covers all of them.

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    1.8%
    Avg arrival delay
    9 min
    • Arrived on time 91% of the time (56 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 62%).
    • Short track record (56 flights), so its score leans on the airline's record at this hour.

    Limited track record · 56 flights

    Find Southwest 4233 fares Opens this date on Aviasales

  2. #2 · Southwest 2369

    6:30 AM → 8:25 AM1h 55m nonstop

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

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 62%).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 2369 fares Opens this date on Aviasales

  3. #3 · Southwest 1562

    11:05 AM → 1:00 PM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-27.

    85%

    chance on time

    On time (history)
    93%
    Cancelled
    6.3%
    Avg arrival delay
    2 min
    • Arrived on time 93% of the time (15 flights, Jun 2025 to May 2026).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 1562 fares Opens this date on Aviasales

  4. #4 · Southwest 3935

    8:00 AM → 9:55 AM1h 55m nonstop

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

    83%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 88% 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; 6 to 9 PM: 62%).
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 3935 fares Opens this date on Aviasales

  5. #5 · Southwest 696

    10:40 AM → 12:40 PM2h 00m nonstop

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

    82%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 696 fares Opens this date on Aviasales

  6. #6 · Southwest 2925

    4:00 PM → 6:00 PM2h 00m nonstop

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

    79%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 78% of the time (23 flights, Jun 2025 to May 2026).
    • 83% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 2925 fares Opens this date on Aviasales

  7. #7 · Southwest 494

    2:40 PM → 4:35 PM1h 55m nonstop

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

    74%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 68% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find Southwest 494 fares Opens this date on Aviasales

  8. #8 · Southwest 2146

    9:00 PM → 10:55 PM1h 55m nonstop

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

    74%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 68% of the time (53 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Short track record (53 flights), so its score leans on the airline's record at this hour.

    Limited track record · 53 flights

    Find Southwest 2146 fares Opens this date on Aviasales

  9. #9 · Southwest 989

    6:40 PM → 8:40 PM2h 00m nonstop

    Local times, typical schedule. Last flown 2026-04-05.

    69%

    chance on time

    On time (history)
    61%
    Cancelled
    0.0%
    Avg arrival delay
    24 min
    • Arrived on time 61% of the time (18 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 62% on time; Before 9 AM: 93%).
    • 74% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find Southwest 989 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines80%

    973 flights · 81% on time as flown · 0.9% cancel

On time by departure time

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

  • Before 9 AM93%

    349 flights · avg delay 7 min

  • 9 AM to noon89%

    99 flights · avg delay 5 min

  • Noon to 3 PM82%

    172 flights · avg delay 10 min

  • 3 to 6 PM70%

    158 flights · avg delay 17 min

  • 6 to 9 PM62%

    172 flights · avg delay 20 min

Best day: Tuesday (84%). Worst: Sunday (74%).

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