Route on-time record

AUS to PHX: most on-time flights and the best time to fly

Austin (Austin Bergstrom International Airport) to Phoenix (Phoenix Sky Harbor International Airport). 3,392 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Southwest 421 at 6:40 AM.

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

AUS → PHX

Austin to Phoenix: 3,392 nonstop flights a year

On time (12 months)

79%

Cancelled

0.7%

avg delay 18 min

Best time to leave

Before 9 AM

93% on time vs 67% 6 to 9 PM

Most reliable airline

American

81% chance on time

Check AUS to PHX fares

Lowest nonstop fare seen in the next two months: $153 (Southwest 375 on 2026-11-21). 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 421
6:40 AM → 7:15 AM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
4 min
- Arrived on time 96% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 67%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Limited track record · 55 flights
Find Southwest 421 fares Opens this date on Aviasales
#2 · Southwest 1223
6:20 AM → 7:00 AM2h 40m nonstop
Local times, typical schedule. Last flown 2026-04-06.
92%
chance on time
On time (history)
97%
Cancelled
3.0%
Avg arrival delay
6 min
- Arrived on time 97% of the time (32 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (1 of 33).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 67%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Limited track record · 32 flights
Find Southwest 1223 fares Opens this date on Aviasales
#3 · Southwest 268
7:15 AM → 7:50 AM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
On time (history)
94%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 94% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 67%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Limited track record · 31 flights
Find Southwest 268 fares Opens this date on Aviasales
#4 · American 455
6:00 AM → 6:30 AM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1386; its record covers all of them.
89%
chance on time
On time (history)
90%
Cancelled
1.7%
Avg arrival delay
30 min
- Arrived on time 90% of the time (351 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: 67%).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
Strong track record · 351 flights
Find American 455 fares Opens this date on Aviasales
#5 · Southwest 576
9:20 AM → 9:55 AM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-29.
89%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 96% of the time (23 flights, Jun 2025 to May 2026).
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 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 576 fares Opens this date on Aviasales
#6 · Southwest 2119
9:35 AM → 10:15 AM2h 40m nonstop
Local times, typical schedule. Last flown 2026-04-06.
87%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 91% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Departs outside AUS's trouble window (10 AM to 4 PM, when 79% of its 91 ground stops and delay programs started).
- Short track record (33 flights), so its score leans on the airline's record at this hour.
Limited track record · 33 flights
Find Southwest 2119 fares Opens this date on Aviasales
#7 · American 3181
2:41 PM → 3:11 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 3181 fares Opens this date on Aviasales
#8 · American 1818
2:25 PM → 3:03 PM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
On time (history)
85%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 85% of the time (41 flights, Jun 2025 to May 2026).
- Never cancelled in 41 scheduled flights.
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 41 flights
Find American 1818 fares Opens this date on Aviasales
#9 · American 2042
12:25 PM → 1:04 PM2h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
On time (history)
82%
Cancelled
0.5%
Avg arrival delay
24 min
- Arrived on time 82% of the time (201 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
Strong track record · 201 flights
Find American 2042 fares Opens this date on Aviasales
#10 · Southwest 3162
2:10 PM → 2:55 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-04-06.
81%
chance on time
On time (history)
87%
Cancelled
0.0%
Avg arrival delay
7 min
- Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
- Departs inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 3162 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

American Airlines81%
1,202 flights · 81% on time as flown · 0.8% cancel
Southwest Airlines78%
1,986 flights · 78% on time as flown · 0.5% cancel
Frontier Airlines76%
177 flights · 76% on time as flown · 1.2% cancel

On time by departure time

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

Before 9 AM93%
745 flights · avg delay 16 min
9 AM to noon88%
425 flights · avg delay 8 min
Noon to 3 PM79%
1,043 flights · avg delay 22 min
3 to 6 PM69%
449 flights · avg delay 17 min
6 to 9 PM67%
585 flights · avg delay 23 min
After 9 PM71%
145 flights · avg delay 16 min

Best day: Saturday (86%). Worst: Sunday (78%).

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 aircraft44%
Airline (crew, maintenance, boarding)43%
Air traffic control and airport volume8%
Severe weather5%

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 PHX questions

What time of day is best to fly AUS to PHX?: Before 9 AM: 93% of flights arrived on time, against 67% 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 PHX?: American, with a season-adjusted 81% chance of operating and arriving on time over 1,202 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 PHX?: May (73% on time); the best was February (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.

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