Flight number record
UA 2344
United Airlines · Austin to Washington
- Route
- AUS → IAD
- Departs
- 12:14
- Flights
- 307
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2344, check with United Airlines.
UA 2344 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 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 307 flights, with a median arrival 5 minutes early.
Set against the rest of the country, UA 2344's record is 11 points better than the US average of 77.6%. That gap is worth roughly 113 fewer late arrivals for every thousand flights.
Key figures
On time
88.9%
Arrivals under 15 minutes late, of 305 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.81%
1 hour+ late
3.3%
National rate is 8.1%
These figures cover 307 flights between July 2025 and June 2026. The median arrival is 5 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.
Schedule
When UA 2344 flies
UA 2344 flies AUS to IAD without a single fixed slot. Its most common scheduled departure was 12:14, used on 67 of 307 flights, with 12:17 (64 flights) and 12:11 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 12:1467 flights21.8%
- Departs 12:1764 flights20.8%
- Departs 12:1142 flights13.7%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 12:14 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 2344 runs 10 points better at 88.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 2344 next to AUS to IAD
Every carrier on AUS to IAD combined arrived on time 89.1% of the time across 1,049 flights, so UA 2344 is about level with it. United flew 1,007 flights on the same city pair under all its flight numbers, including this one, and those ran 90.0% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2344thin sample | 307 | 88.9% | 52 min | 0.33% | A+ |
| All United Airlines on AUS–IAD | 1,007 | 90.0% | 67 min | 0.79% | A+ |
| All carriers on AUS–IAD | 1,049 | 89.1% | 88 min | 0.76% | A+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 2344 quarter by quarter
UA 2344 did not run the same all year. Its best quarter was Apr–Jun 2026 at 96.5% on time and its weakest Jul–Sep 2025 at 81.5%, a swing of 15 points on roughly 77 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 202582 flights81.5%
- Oct–Dec 202560 flights88.3%
- Jan–Mar 202680 flights88.6%
- Apr–Jun 202685 flights96.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2344 ranged from 87.0% on Sunday to 95.7% on Friday. With about 44 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why UA 2344 runs late
One category carries most of the weight here. National Airspace System accounts for 48% of the 1,772 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.
- 48%National Airspace System
- 26%Late-arriving aircraft
- 21%Carrier
- 4%Extreme weather
48% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 844 minutes out of 1,772, against a national NAS share of 21%. The split is drawn from 1,772 delay minutes reported on UA 2344.
Cancellations are rare at 0.33%, below the national 1.81% 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 3.3% land an hour or more behind schedule, against 8.1% 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 1,297 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on two other city pairs in the data, including EWR to AUS (31) and IAD to CMH (28), but none flew often enough under UA 2344 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to AUS to IAD only.
One caution: this is a thin sample. 307 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 2344
For a booking, UA 2344 has one of the better records a US domestic flight can show: 88.9% on time and 0.33% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- AUS to IAD, every carrier and departure
- IAD to AUS, the return direction
- United Airlines 525 on the same route93.5%
- United Airlines 376 on the same route86.1%
- Austin-Bergstrom International (AUS) 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
- Worst months to fly in the US, ranked by the data
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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.