Route on-time record
PHX to SAT: most on-time flights and the best time to fly
Phoenix (Phoenix Sky Harbor International Airport) to San Antonio (San Antonio International Airport). 2,503 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was Southwest 934 at 8:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PHX → SAT
Phoenix to San Antonio: 2,503 nonstop flights a year
On time (12 months)
77%
Cancelled
0.4%
avg delay 14 min
Best time to leave
Before 9 AM
92% on time vs 64% 6 to 9 PM
Most reliable airline
Frontier
84% 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 934
8:00 AM → 12:15 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 98%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 98% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 64%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 54 flights
Find Southwest 934 fares Opens this date on Aviasales#2 · American 3134
9:03 AM → 1:20 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20.
89%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 92% of the time (63 flights, Jun 2025 to May 2026).
- Never cancelled in 63 scheduled flights.
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Moderate track record · 63 flights
Find American 3134 fares Opens this date on Aviasales#3 · American 3133
9:51 AM → 2:08 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-04-06.
89%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (30 flights), so its score leans on the airline's record at this hour.
Limited track record · 30 flights
Find American 3133 fares Opens this date on Aviasales#4 · Frontier 2424
11:53 AM → 4:03 PM2h 10m nonstop
Local times, typical schedule. Last flown 2026-04-12.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (65 flights, Jun 2025 to May 2026).
- Never cancelled in 65 scheduled flights.
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Moderate track record · 65 flights
Find Frontier 2424 fares Opens this date on Aviasales#5 · Southwest 4253
7:45 AM → 12:00 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 90% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 64%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 30 flights
Find Southwest 4253 fares Opens this date on Aviasales#6 · American 1107
12:41 PM → 4:51 PM2h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
84%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 93% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (30 flights), so its score leans on the airline's record at this hour.
Limited track record · 30 flights
Find American 1107 fares Opens this date on Aviasales#7 · American 2497
12:30 PM → 4:38 PM2h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- 91% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2497 fares Opens this date on Aviasales#8 · Southwest 4590
11:40 AM → 3:45 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-04-01.
78%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 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 4590 fares Opens this date on Aviasales#9 · Southwest 962
1:05 PM → 5:10 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-05-30.
78%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 79% of the time (47 flights, Jun 2025 to May 2026).
- Never cancelled in 47 scheduled flights.
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (47 flights), so its score leans on the airline's record at this hour.
Limited track record · 47 flights
Find Southwest 962 fares Opens this date on Aviasales#10 · Southwest 457
10:45 AM → 2:50 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-04-06.
77%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 73% of the time (15 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 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 457 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Frontier Airlines84%
65 flights · 91% on time as flown · 0.3% cancel
- American Airlines79%
1,039 flights · 79% on time as flown · 0.7% cancel
- Southwest Airlines75%
1,385 flights · 75% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
503 flights · avg delay 5 min
- 9 AM to noon85%
481 flights · avg delay 9 min
- Noon to 3 PM75%
577 flights · avg delay 17 min
- 3 to 6 PM71%
366 flights · avg delay 15 min
- 6 to 9 PM64%
534 flights · avg delay 23 min
Best day: Tuesday (83%). Worst: Thursday (76%).
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 aircraft59%
- Airline (crew, maintenance, boarding)34%
- Air traffic control and airport volume6%
- Severe weather2%
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
PHX to SAT questions
- What time of day is best to fly PHX to SAT?
- Before 9 AM: 92% of flights arrived on time, against 64% 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 PHX to SAT?
- Frontier, with a season-adjusted 84% chance of operating and arriving on time over 65 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 PHX to SAT?
- July (72% on time); the best was September (87%), 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 PHX
- SAT to PHX (return)
- PHX to DEN 77%
- PHX to LAX 83%
- PHX to SEA 83%
- PHX to LAS 79%
- PHX to SAN 74%
- PHX to SLC 83%
- PHX to ORD 77%
- PHX to DFW 80%
- PHX to SFO 71%
- PHX to SNA 80%
- PHX to ATL 82%
- PHX to PDX 79%
Live status: FAA delays and ground stops