ON TIMEBOARD

SJT San Angelo Mathis delays

San Angelo Regional Mathis Field, San Angelo, TX. Every scheduled departure, September 2025 to August 2026.

On time
78%
departing flights, arrival < 15 min late
Left on time
80%
gate departure < 15 min late
Cancelled
3.7%
1,078 departures
Taxi out
17m
gate to wheels-up

78% of flights leaving San Angelo (SJT) arrived on time over the past 12 months, 2 points better than the national average of 76%. About 3 flights leave SJT on a typical day; 3.7% were cancelled. 80% pushed back from the gate on time, so most of the lateness is already there when the flight leaves the gate.

At a glance

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for flights leaving SJT: when a flight was late, it was under 45 minutes late 43% of the time. About 1 in 13 flights landed an hour or more late, and 1 in 36 three hours or more; 3.7% were cancelled outright.

Share of all 1,078 scheduled flights, past 12 months, by arrival time against schedule.

Best time of day to fly out of SJT

Time of day matters more at SJT than almost anything else you control. Flights scheduled to leave at 5 a.m. arrived on time 85% of the time; at 6 p.m. it was 67%, a 18-point gap. Taken together, early departures (5–9 a.m.) ran 85% on time against 67% for the evening bank (5–10 p.m.). Early planes usually start the day at the airport, so they haven't had a chance to pick up delays elsewhere. By evening a late inbound aircraft, a crew running out of duty hours or an afternoon thunderstorm can push one late flight into the next.

40%70%100%5 a.m. departures: 85% on time (336 flights)855a6 a.m. departures: too few flights (28 flights)6a7 a.m. departures: too few flights (1 flights)7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: 83% on time (315 flights)8310a11 a.m. departures: too few flights (44 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (1 flights)1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights5p6 p.m. departures: 67% on time (353 flights)676p
SJT departures, share arriving on time, by scheduled local departure hour, past 12 months.
82%+ on time76–82%68–76%under 68%too few flights

Hour × month

Each cell: on-time rate for that departure hour in that calendar month, 2023–2026. Find your travel month, then look along the row for the greenest hour.

Best and worst months

April is the hardest month at SJT, with 71% of flights on time across 2023–2026; December is the best at 85%. Cancellations peak in January (7.5% of flights).

40%70%100%Jan: 72% on time (278 flights)72JanFeb: 79% on time (245 flights)79FebMar: 78% on time (279 flights)78MarApr: 71% on time (270 flights)71AprMay: 74% on time (278 flights)74MayJun: 74% on time (270 flights)74JunJul: 78% on time (277 flights)78JulAug: 83% on time (279 flights)83AugSep: 78% on time (264 flights)78SepOct: 79% on time (275 flights)79OctNov: 77% on time (261 flights)77NovDec: 85% on time (274 flights)85Dec

Airlines at SJT

American Airlines runs 100% of departures from SJT, so SJT is effectively its hub. When American Airlines has a bad day, so does the airport.

AirlineDeparturesOn timeLeft on timeCancelledTypical arrival
American Airlines1,07878%80%3.7%−9 min

Why flights are late at SJT

Airlines report a cause for every flight that arrives 15 or more minutes late. At SJT, 54% of delay minutes came from the airlines themselves: crew, maintenance, cleaning, fueling and baggage. Next is severe weather at 19%.

Airline (crew, maintenance, ops) 54%Severe weather 19%Late inbound plane 18%Air traffic & airport (NAS) 8%Security 1%

The average taxi from gate to takeoff is 17 minutes, about typical for a large U.S. airport.

Month by month

Not enough months with data to draw a trend.

Last flights of the day

The last flight of the day is a different bet. Across routes from SJT, each airline's final departure was cancelled 5.0% of the time, against 3.1% for its earlier flights (1.6× as often). Late in the day crews run short on duty hours, aircraft arrive late from elsewhere, and with no later flight to fold passengers into, cancelling is easier for the airline. 1.7% of last flights landed 3+ hours late. The riskiest last flight out was American Airlines to Dallas (5.0% cancelled).

Last flight toAirlineLeavesCancelled3h+ lateOn time
DFW DallasAmerican Airlines6:53 p.m.5.0%1.7%68%

Each airline's last scheduled departure of the day on a route, on days it flies the route at least twice; past 12 months. Riskiest first.

Tips for flying out of SJT

Routes from SJT

Least reliable first. Routes with at least 365 flights a year.

ToFlightsOn timeCancelledTypical arrival
DFW Dallas1,07878%3.7%−9 min

Flights into SJT

Arriving rather than leaving? These are the routes into San Angelo Mathis, least reliable first. The weakest is from Dallas (77% on time).

FromFlightsOn timeCancelled
DFW Dallas1,07877%3.8%

Questions about SJT delays

What is the best time to fly out of SJT?

Flights scheduled at 5 a.m.: over the past year 85% of SJT departures at that hour arrived on time, against 67% at 6 p.m., the worst hour.

What month has the most flight delays at SJT?

April (71% on time). December is the best month (85%).

Why are flights delayed at SJT?

The biggest cause was the airlines themselves (54% of delay minutes): crew, maintenance, cleaning, fueling and baggage. Then severe weather (19%).

How often are flights cancelled at SJT?

3.7% of scheduled departures over the past 12 months, peaking in January at 7.5%.

Hours are scheduled local departure times. "On time" means arriving less than 15 minutes late at the destination; cancelled and diverted flights count as not on time. Method.