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Route on-time record

RDU to ATL: most on-time flights and the best time to fly

Raleigh/Durham (Raleigh-Durham International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 4,613 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was Delta 2634 at 9:56 AM.

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

RDU → ATL

Raleigh/Durham to Atlanta: 4,613 nonstop flights a year

On time (12 months)

87%

Cancelled

1.6%

avg delay 12 min

Best time to leave

9 AM to noon

94% on time vs 78% 6 to 9 PM

Most reliable airline

Southwest

88% chance on time

Check RDU to ATL fares

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 2634

    9:56 AM → 11:25 AM1h 29m nonstop

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

    95%

    chance on time

    On time (history)
    100%
    Cancelled
    2.6%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (37 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 94% on time; 6 to 9 PM: 78%).
    • Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
    • Short track record (37 flights), so its score leans on the airline's record at this hour.

    Limited track record · 37 flights

    Find Delta 2634 fares Opens this date on Aviasales

  2. #2 · Delta 1192

    6:15 AM → 7:47 AM1h 31m nonstop

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

    93%

    chance on time

    On time (history)
    97%
    Cancelled
    2.7%
    Avg arrival delay
    2 min
    • Arrived on time 97% of the time (146 flights, Jun 2025 to May 2026).
    • Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).

    Moderate track record · 146 flights

    Find Delta 1192 fares Opens this date on Aviasales

  3. #3 · Delta 1552

    5:15 AM → 6:42 AM1h 25m nonstop

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

    93%

    chance on time

    On time (history)
    95%
    Cancelled
    3.1%
    Avg arrival delay
    4 min
    • Arrived on time 95% of the time (123 flights, Jun 2025 to May 2026).
    • Cancelled 3.1% of the time (4 of 127).
    • Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).

    Moderate track record · 123 flights

    Find Delta 1552 fares Opens this date on Aviasales

  4. #4 · Delta 1488

    2:27 PM → 3:57 PM1h 34m nonstop

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

    93%

    chance on time

    On time (history)
    96%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 96% of the time (72 flights, Jun 2025 to May 2026).
    • Never cancelled in 72 scheduled flights.
    • Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
    • Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 72 flights

    Find Delta 1488 fares Opens this date on Aviasales

  5. #5 · Delta 3166

    11:21 AM → 12:49 PM1h 28m nonstop

    Local times, typical schedule. Last flown 2026-04-12.

    92%

    chance on time

    On time (history)
    94%
    Cancelled
    2.8%
    Avg arrival delay
    3 min
    • Arrived on time 94% of the time (35 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 94% on time; 6 to 9 PM: 78%).
    • Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
    • Short track record (35 flights), so its score leans on the airline's record at this hour.

    Limited track record · 35 flights

    Find Delta 3166 fares Opens this date on Aviasales

  6. #6 · Delta 1486

    10:16 AM → 11:45 AM1h 29m nonstop

    Local times, typical schedule. Last flown 2026-05-06. Same departure also flew as Delta 1725; its record covers all of them.

    92%

    chance on time

    On time (history)
    92%
    Cancelled
    1.9%
    Avg arrival delay
    8 min
    • Arrived on time 92% of the time (51 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 94% on time; 6 to 9 PM: 78%).
    • Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
    • Short track record (51 flights), so its score leans on the airline's record at this hour.

    Limited track record · 51 flights

    Find Delta 1486 fares Opens this date on Aviasales

  7. #7 · Delta 1699

    11:33 AM → 1:00 PM1h 27m nonstop

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

    91%

    chance on time

    On time (history)
    92%
    Cancelled
    0.4%
    Avg arrival delay
    5 min
    • Arrived on time 92% of the time (235 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (9 AM to noon: 94% on time; 6 to 9 PM: 78%).
    • Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
    • Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 235 flights

    Find Delta 1699 fares Opens this date on Aviasales

  8. #8 · Delta 2026

    2:40 PM → 4:11 PM1h 31m nonstop

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

    90%

    chance on time

    On time (history)
    92%
    Cancelled
    1.9%
    Avg arrival delay
    6 min
    • Arrived on time 92% of the time (153 flights, Jun 2025 to May 2026).
    • Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
    • Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 153 flights

    Find Delta 2026 fares Opens this date on Aviasales

  9. #9 · Delta 2052

    12:45 PM → 2:16 PM1h 31m nonstop

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

    87%

    chance on time

    On time (history)
    90%
    Cancelled
    4.1%
    Avg arrival delay
    8 min
    • Arrived on time 90% of the time (163 flights, Jun 2025 to May 2026).
    • Cancelled 4.1% of the time (7 of 170).
    • Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
    • Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 163 flights

    Find Delta 2052 fares Opens this date on Aviasales

  10. #10 · Delta 1530

    8:20 AM → 9:55 AM1h 35m nonstop

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

    87%

    chance on time

    On time (history)
    88%
    Cancelled
    1.2%
    Avg arrival delay
    11 min
    • Arrived on time 88% of the time (168 flights, Jun 2025 to May 2026).
    • Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).

    Moderate track record · 168 flights

    Find Delta 1530 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines88%

    277 flights · 90% on time as flown · 1.0% cancel

  • Delta Air Lines87%

    3,801 flights · 88% on time as flown · 1.4% cancel

  • Frontier Airlines71%

    535 flights · 72% on time as flown · 3.0% cancel

On time by departure time

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

  • Before 9 AM89%

    1,647 flights · avg delay 10 min

  • 9 AM to noon94%

    768 flights · avg delay 5 min

  • Noon to 3 PM87%

    826 flights · avg delay 13 min

  • 3 to 6 PM79%

    807 flights · avg delay 18 min

  • 6 to 9 PM78%

    562 flights · avg delay 17 min

Best day: Tuesday (88%). Worst: Sunday (81%).

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
85
F
89
M
85
A
88
M
80
J
80
J
76
A
83
S
90
O
89
N
87
D
85

What delays this route

  • Late-arriving aircraft38%
  • Airline (crew, maintenance, boarding)35%
  • Air traffic control and airport volume27%

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

RDU to ATL questions

What time of day is best to fly RDU to ATL?
9 AM to noon: 94% of flights arrived on time, against 78% for departures 6 to 9 PM.
Which airline is most on time from RDU to ATL?
Southwest, with a season-adjusted 88% chance of operating and arriving on time over 277 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 RDU to ATL?
July (76% on time); the best was September (90%), 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 RDU

Live status: FAA delays and ground stops