SAT → PHX Flight Reliability

Right now

Origin · SATNo disruption reported

Aviation weather is not currently a factor.

Updated 12:51 UTC

San Antonio airport profile →

Destination · PHXNo disruption reported

Aviation weather is not currently a factor.

Updated 12:51 UTC

Phoenix airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

76/ 100Strong

Better than 78% of comparable major US routes (4,598 compared)

Calculated from 8,047 flights. How this is calculated

On-time arrivals

83.3%

6,663 of 8,001

Cancellation rate

0.45%

36 cancelled

Median arrival delay

-7 min

Average 5.3 min

Severe delays

5.8%

60+ minutes late

Delay when late

77 min

Average, when 15+ min late

Flights analyzed

8,047

2 carriers

SAT → PHX arrives on time 83.3% of the time; the return trip, PHX → SAT, arrives on time 78.9% of the time, a 4.4-point gap between the two directions of the same city pair.

SAT → PHX spends 19.9 minutes on the ground on an 843-mile trip: 12.1 minutes from pushback to wheels-up at SAT and 7.8 minutes from touchdown to gate at PHX.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

What stands out

Every airline on this route performs about the same, a narrower carrier gap than 94% of 2,692 comparable routes.

Southwest Airlines (83.8% on time) and American Airlines (82.6%) are close together here.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 2,692 in the comparison.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

33 min late

against a median of 7 min early

Arrived an hour or more late5.8%

Typical delay when late77 min

Cancelled0.45%

Landed somewhere else0.12%

Percentiles over 8,047 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at PHX after arriving from SAT.

Connection buffer and chance of missing by layover length, SAT → PHX arrivals
Connection time	Chance of missing	Reads as
30 min	32%	Likely to miss
45 min	16%	High risk
60 min	11%	Some risk
90 min	5.7%	Some risk
120 min	3.8%	Low risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.45% of the time and diverts 0.12% of the time, which a late arrival never shows up in.

Chance of missing is the share of 8,001 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 33 minutes late (90th-percentile gate arrival delay), over 8,047 operations.

Any other layover length: connection checker.

Best time to fly

SAT → PHX flights departing 5–9 AM arrived on time 92.1% of the time, against 70.5% for 9 PM–5 AM departures, a gap of 21.6 percentage points.

By departure window

5–9 AM92.1%

9 AM–12 PM89.1%

12–3 PM83.8%

3–6 PM74.6%

6–9 PM72.7%

9 PM–5 AM70.5%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why SAT → PHX runs late

July 2023 – July 2026

Late-arriving aircraft57.2%

the inbound aircraft was late, so this flight started late

The airline32.2%

crew, maintenance, boarding and fueling, all within the carrier’s control

Air traffic control7.0%

airspace and airport capacity, including weather-driven flow control

Weather3.4%

weather severe enough to stop this flight specifically

Security0.3%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for SAT → PHX. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on SAT → PHX, at 57.2%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 92.1% of the time and 9 PM–5 AM departures 70.5%.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
Southwest Airlines	4,413	83.8%	0.32%	-7 min	4.0%
American Airlines	3,340	82.6%	0.66%	-8 min	8.4%

Southwest Airlines flew 56.9% of the 7,753 flights listed.

Carriers on this route performed within a couple of percentage points of each other.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
AA2053 American Airlines	9:10 AM	1,061	85.8%

Weekly and seasonal patterns

By day of week

Mon81.3%

Tue86.1%

Wed84.5%

Thu81.3%

Fri83.7%

Sat84.8%

Sun81.9%

Tuesday is historically the most reliable day and Monday the least, a gap of 4.8 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

June is historically the weakest month and November the strongest, a spread of 20.4 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 81.6% against 85.3% in the 12 months before — declining by 3.7 percentage points.

Data and methodology

Calculated by FlyerIntel from 8,047 SAT → PHX flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

SAT airport PHX airport Return direction PHX → SAT

SAT→PHX

Right now

Route reliability

What stands out

When it goes wrong

Will your connection be tight enough?

Best time to fly

By departure window

By departure hour

Why SAT → PHX runs late

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology