Route on-time record
AUS to RDU: most on-time flights and the best time to fly
Austin (Austin Bergstrom International Airport) to Raleigh/Durham (Raleigh-Durham International Airport). 512 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was Southwest 432 at 5:15 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
AUS → RDU
Austin to Raleigh/Durham: 512 nonstop flights a year
On time (12 months)
73%
Cancelled
0.4%
avg delay 15 min
Best time to leave
Before 9 AM
96% on time vs 48% 6 to 9 PM
Most reliable airline
Southwest
73% chance on time
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 · Southwest 432
5:15 AM → 9:00 AM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 80% of the time (56 flights, Jun 2025 to May 2026).
- Never cancelled in 56 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 48%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 92 ground stops and delay programs started).
Limited track record · 56 flights
Find Southwest 432 fares Opens this date on Aviasales#2 · Southwest 154
7:00 PM → 10:45 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-29.
57%
chance on time
- On time (history)
- 35%
- Cancelled
- 0.0%
- Avg arrival delay
- 41 min
- Arrived on time 35% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 48% on time; Before 9 AM: 96%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 92 ground stops and delay programs started).
Limited track record · 23 flights
Find Southwest 154 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines73%
512 flights · 73% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
77 flights · avg delay 3 min
- 9 AM to noon90%
210 flights · avg delay 5 min
- Noon to 3 PM52%
60 flights · avg delay 22 min
- 6 to 9 PM48%
143 flights · avg delay 28 min
Best day: Saturday (81%). Worst: Monday (70%).
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.
What delays this route
- Late-arriving aircraft48%
- Airline (crew, maintenance, boarding)37%
- Air traffic control and airport volume13%
- Severe weather1%
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
AUS to RDU questions
- What time of day is best to fly AUS to RDU?
- Before 9 AM: 96% of flights arrived on time, against 48% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from AUS to RDU?
- Southwest, with a season-adjusted 73% chance of operating and arriving on time over 512 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 AUS to RDU?
- May (61% on time); the best was September (86%), 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 AUS
- RDU to AUS (return)
- AUS to DEN 78%
- AUS to DFW 73%
- AUS to ATL 81%
- AUS to LAX 82%
- AUS to PHX 79%
- AUS to ORD 73%
- AUS to BNA 77%
- AUS to LAS 75%
- AUS to SFO 76%
- AUS to MCO 73%
- AUS to IAH 76%
- AUS to SAN 75%
Most on-time flights from AUS on every route →
Live status: FAA delays and ground stops