Route reliability record
DFW→SJT
Dallas-Fort Worth to San Angelo
- Flights
- 1,078
- Period
- July 2025 to June 2026
- Distance
- 229 mi
- Carriers
- 1
This route carries a cancellation problem, not just a delay problem: 4.4% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,078 DFW to SJT flights, with a median arrival 10 minutes early.
Best time to fly DFW to SJT: a 8am–11am departure, ideally on a Friday. Flights in that window arrived on time 86.2% of the time and Friday flights 83.6%, against 79.9% for the route overall.
The US average over the same twelve months is 77.6%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.9%
Arrivals under 15 minutes late, of 1,027 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
4.36%
National rate is 1.81%
Best carrier
SkyWest
79.9% on time across 1,078 flights
These figures cover 1,078 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Which airline is most reliable on DFW to SJT
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 1,078 | 79.9% | 97 min | 4.36% | B− |
Flight by flight
Flights on DFW to SJT
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 11 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am360 flights86.2%
- 11am–2pm—
- 2pm–5pm272 flights75.0%
- 5pm–8pm87 flights75.9%
- 8pm–5am359 flights78.2%
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 86.2% of the time, against 75.0% for the afternoon window. That is 11 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 360 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 14 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
June is the worst month at 75.3% on time, 14 points below January, the best at 88.8%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 93 flights.
Across the week, Friday is the strongest day at 83.6% on time and Sunday the weakest at 74.5%. 9 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. Carrier accounts for 54% of the 20,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 54%Carrier
- 23%Late-arriving aircraft
- 16%Extreme weather
- 7%National Airspace System
Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 19,932 reported delay minutes.
The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 11,000 of the 20,000 delay minutes reported here.
Cancellations run at 4.36%, against 1.81% nationally. That is roughly one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
8.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
At 229 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.
The return leg runs 81.2% on time across 1,078 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 1,078 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
Work out the risk of missing a connection in SJT after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 4.36% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,027 completed flights over 12 months sit behind that.
Common questions
DFW to SJT questions
How often is DFW to SJT delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 20.1% of the 1,078 flights in this analysis, against 22.4% nationally. Delayed flights are late by an hour and a half on average.
How reliable is DFW to SJT compared with the rest of the country?
79.9% of flights arrive on time here against a national 77.6%, a difference of 2 points in its favour. That is worth a B− on this site's grading scale.
What time of day has the fewest delays on DFW to SJT?
The 8am–11am departure window is the strongest at 86.2% on time. The 2pm–5pm window is the weakest at 75.0%, 11 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are June delays on DFW to SJT?
June is the weakest month at 75.3% on time, compared with 88.8% in January. Across the year that is 14 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- SJT to DFW — the return legseparate record
- Dallas/Fort Worth International (DFW) delay statistics
- DFW to ORD, a related route67.6%
- DFW to LGA, a related route67.1%
- DFW to ATL, a related route75.8%
- SkyWest Airlines on-time record79.9%
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
Direction matters. DFW to SJT and SJT to DFW are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.