Flight number record
UA 2250
United Airlines · San Antonio to Washington
- Route
- SAT → IAD
- Departs
- 12:01
- Flights
- 300
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2250, check with United Airlines.
UA 2250 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 300 flights, with a median arrival 7 minutes early.
Set against the rest of the country, UA 2250's record is 14 points better than the US average of 77.3%. That gap is worth roughly 139 fewer late arrivals for every thousand flights.
Key figures
On time
91.2%
Arrivals under 15 minutes late, of 294 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
0.67%
National rate is 1.89%
1 hour+ late
1.4%
National rate is 8.3%
These figures cover 300 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When UA 2250 flies
UA 2250 flies SAT to IAD without a single fixed slot. Its most common scheduled departure was 12:01, used on 73 of 300 flights, with 12:12 (37 flights) and 12:17 (35 flights) next.
- Departs 12:0173 flights24.3%
- Departs 12:1237 flights12.3%
- Departs 12:1735 flights11.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 12:01 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 2250 runs 13 points better at 91.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 2250 next to SAT to IAD
Every carrier on SAT to IAD combined arrived on time 93.2% of the time across 644 flights, so UA 2250 is 2 points behind it. Across its whole network United Airlines managed 78.8%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2250thin sample | 300 | 91.2% | 97 min | 0.67% | A+ |
| All United Airlines on SAT–IAD | 644 | 93.2% | 99 min | 0.62% | A+ |
| All carriers on SAT–IAD | 644 | 93.2% | 99 min | 0.62% | A+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2250 quarter by quarter
UA 2250 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 82.4%, a swing of 14 points on roughly 60 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights96.7%
- Oct–Dec 202588 flights92.0%
- Jan–Mar 202674 flights87.5%
- Apr–Jun 202673 flights95.7%
- Jul–Sep 202635 flights82.4%
Scale runs 75% to 100%.
By weekday, UA 2250 did best on Thursday at 97.9% on time and worst on Monday at 83.7%. Each day rests on about 43 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2250 runs when it is late
Most of the lateness is short. 14 of the 26 late arrivals were under half an hour behind, and 4 reached an hour or more.
- 15+ min early72 flights24.5%
- Within 15 min196 flights66.7%
- 15–29 min late14 flights4.8%
- 30–59 min late8 flights2.7%
- 1–2 hours late0 flights0.0%
- 2+ hours late4 flights1.4%
Scale runs 0% to 100%.
Share of 294 completed flights by arrival against schedule.
8 of 28 late departures made up the time and arrived on time, 29% of them. 6 flights left on time and still arrived late.
The worst days
Worst days for UA 2250
The latest arrival of the period was on 30 December 2025, 10 hours 9 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 30 December 2025 | 10 hours 9 minutes | Carrier |
| 21 July 2026 | 9 hours 6 minutes | National Airspace System |
| 6 July 2026 | 8 hours 42 minutes | Carrier |
| 6 September 2025 | 2 hours 52 minutes | Late-arriving aircraft |
| 23 July 2026 | 55 minutes | Carrier |
Delay causes
Why UA 2250 runs late
Carrier accounts for 55% of the 2,524 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Carrier
- 29%National Airspace System
- 15%Late-arriving aircraft
The largest share of delay minutes, 55%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,397 of the 2,524 delay minutes reported here. The split is drawn from 2,524 delay minutes reported on UA 2250.
Cancellations are rare at 0.67%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 1.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,362 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on two other city pairs in the data, including IAH to SAT (198) and SFO to ORD (21), but none flew often enough under UA 2250 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SAT to IAD only.
One caution: this is a thin sample. 300 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.
What to do with this
Booking UA 2250
For a booking, UA 2250 has one of the better records a US domestic flight can show: 91.2% on time and 0.67% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- San Antonio International (SAT) delay statistics
- Washington Dulles International (IAD) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- The best day of the week to fly, and why it is the second lever
A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.