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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.

ATL → DAL

Atlanta to Dallas: 3,441 nonstop flights a year

On time (12 months)

80%

Cancelled

2.2%

avg delay 13 min

Best time to leave

Before 9 AM

92% on time vs 66% 6 to 9 PM

Most reliable airline

Delta

80% chance on time

Check ATL to DAL fares

Lowest nonstop fare seen in the next two months: $92 (Southwest 2159 on 2026-11-07). 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 · Delta 1115

    10:00 AM → 11:27 AM2h 18m nonstop

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

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    1.5%
    Avg arrival delay
    7 min
    • Arrived on time 91% of the time (324 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Strong track record · 324 flights

    Find Delta 1115 fares Opens this date on Aviasales

  2. #2 · Southwest 7

    6:30 AM → 7:55 AM2h 25m nonstop

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

    88%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 93% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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 7 fares Opens this date on Aviasales

  3. #3 · Delta 441

    8:15 AM → 9:42 AM2h 16m nonstop

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

    87%

    chance on time

    On time (history)
    89%
    Cancelled
    3.1%
    Avg arrival delay
    6 min
    • Arrived on time 89% of the time (218 flights, Jun 2025 to May 2026).
    • Cancelled 3.1% of the time (7 of 226).
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 218 flights

    Find Delta 441 fares Opens this date on Aviasales

  4. #4 · Southwest 2270

    7:35 AM → 8:50 AM2h 15m nonstop

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

    86%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    4 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: 92% on time; 6 to 9 PM: 66%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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 2270 fares Opens this date on Aviasales

  5. #5 · Southwest 1542

    6:05 AM → 7:20 AM2h 15m nonstop

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

    86%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 83% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find Southwest 1542 fares Opens this date on Aviasales

  6. #6 · Southwest 3860

    6:50 AM → 8:15 AM2h 25m nonstop

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

    85%

    chance on time

    On time (history)
    87%
    Cancelled
    16.7%
    Avg arrival delay
    10 min
    • Arrived on time 87% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 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 3860 fares Opens this date on Aviasales

  7. #7 · Delta 512

    1:56 PM → 3:13 PM2h 13m nonstop

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

    82%

    chance on time

    On time (history)
    84%
    Cancelled
    2.2%
    Avg arrival delay
    10 min
    • Arrived on time 84% of the time (353 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.

    Strong track record · 353 flights

    Find Delta 512 fares Opens this date on Aviasales

  8. #8 · Southwest 4626

    11:25 AM → 12:55 PM2h 30m nonstop

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

    82%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • 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 (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 4626 fares Opens this date on Aviasales

  9. #9 · Southwest 2941

    10:30 AM → 12:00 PM2h 30m nonstop

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

    82%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    25 min
    • Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • 79% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 15 flights

    Find Southwest 2941 fares Opens this date on Aviasales

  10. #10 · Southwest 3300

    11:10 AM → 12:25 PM2h 15m nonstop

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

    81%

    chance on time

    On time (history)
    87%
    Cancelled
    4.2%
    Avg arrival delay
    11 min
    • Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
    • 56% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 23 flights

    Find Southwest 3300 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Delta Air Lines80%

    1,868 flights · 82% on time as flown · 2.5% cancel

  • Southwest Airlines76%

    1,573 flights · 77% on time as flown · 1.7% cancel

On time by departure time

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

  • Before 9 AM92%

    611 flights · avg delay 5 min

  • 9 AM to noon87%

    637 flights · avg delay 9 min

  • Noon to 3 PM82%

    586 flights · avg delay 10 min

  • 3 to 6 PM73%

    716 flights · avg delay 18 min

  • 6 to 9 PM66%

    452 flights · avg delay 22 min

  • After 9 PM75%

    439 flights · avg delay 18 min

Best day: Wednesday (83%). 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