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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 → SLC

Dallas to Salt Lake City: 674 nonstop flights a year

On time (12 months)

74%

Cancelled

1.2%

avg delay 14 min

Best time to leave

9 AM to noon

88% on time vs 53% after 9 PM

Most reliable airline

Southwest

73% chance on time

Check DAL to SLC fares

Lowest nonstop fare seen in the next two months: $341 (Southwest 1426 on 2026-10-26). 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 1272

    10:45 AM → 12:30 PM2h 45m nonstop

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

    81%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 88% on time; After 9 PM: 53%).
    • Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 1272 fares Opens this date on Aviasales

  2. #2 · Southwest 1572

    8:05 AM → 9:50 AM2h 45m nonstop

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

    81%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 83% of the time (23 flights, Jun 2025 to May 2026).
    • Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 1572 fares Opens this date on Aviasales

  3. #3 · Southwest 2323

    8:20 AM → 10:10 AM2h 50m nonstop

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

    77%

    chance on time

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

    Limited track record · 15 flights

    Find Southwest 2323 fares Opens this date on Aviasales

  4. #4 · Southwest 1309

    11:45 AM → 1:30 PM2h 45m nonstop

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

    73%

    chance on time

    On time (history)
    63%
    Cancelled
    0.0%
    Avg arrival delay
    20 min
    • Arrived on time 63% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 88% on time; After 9 PM: 53%).
    • Departs inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • 53% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 24 flights

    Find Southwest 1309 fares Opens this date on Aviasales

  5. #5 · Southwest 3171

    8:20 PM → 10:10 PM2h 50m nonstop

    Local times, typical schedule. Last flown 2026-04-01.

    70%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
    • Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 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 3171 fares Opens this date on Aviasales

  6. #6 · Southwest 3652

    6:35 PM → 8:25 PM2h 50m nonstop

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

    68%

    chance on time

    On time (history)
    58%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 58% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
    • 60% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 33 flights

    Find Southwest 3652 fares Opens this date on Aviasales

  7. #7 · Southwest 46

    7:20 PM → 9:05 PM2h 45m nonstop

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

    65%

    chance on time

    On time (history)
    53%
    Cancelled
    6.3%
    Avg arrival delay
    23 min
    • Arrived on time 53% of the time (15 flights, Jun 2025 to May 2026).
    • Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
    • 80% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 46 fares Opens this date on Aviasales

  8. #8 · Southwest 2771

    8:30 PM → 10:15 PM2h 45m nonstop

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

    54%

    chance on time

    On time (history)
    34%
    Cancelled
    3.3%
    Avg arrival delay
    31 min
    • Arrived on time 34% of the time (29 flights, Jun 2025 to May 2026).
    • Cancelled 3.3% of the time (1 of 30).
    • Departs outside DAL's trouble window (10 AM to 4 PM, when 67% of its 42 ground stops and delay programs started).
    • 55% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 29 flights

    Find Southwest 2771 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines73%

    674 flights · 74% on time as flown · 1.2% cancel

On time by departure time

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

  • Before 9 AM88%

    109 flights · avg delay 6 min

  • 9 AM to noon88%

    179 flights · avg delay 7 min

  • Noon to 3 PM79%

    84 flights · avg delay 11 min

  • 3 to 6 PM69%

    62 flights · avg delay 16 min

  • 6 to 9 PM59%

    165 flights · avg delay 22 min

  • After 9 PM53%

    75 flights · avg delay 25 min

Best day: Wednesday (80%). Worst: Saturday (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