Flight number record
UA 1793
United Airlines · Washington to Chicago
- Route
- DCA → ORD
- Departs
- 06:30
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1793, check with United Airlines.
UA 1793 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 77.6%. When something does go wrong the average delay runs about an hour. That rests on 364 flights, with a median arrival 8 minutes early.
Set against the rest of the country, UA 1793's record is 14 points better than the US average of 77.6%. That gap is worth roughly 138 fewer late arrivals for every thousand flights.
Key figures
On time
91.4%
Arrivals under 15 minutes late, of 359 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.81%
1 hour+ late
2.2%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. The median arrival is 8 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 1793 flies
UA 1793 flies DCA to ORD without a single fixed slot. Its most common scheduled departure was 06:30, used on 214 of 364 flights, with 06:25 (117 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 06:30214 flights58.8%
- Departs 06:25117 flights32.1%
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 06:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 1793 runs 2 points better at 91.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
UA 1793 next to DCA to ORD
Every carrier on DCA to ORD combined arrived on time 74.3% of the time across 6,992 flights, so UA 1793 is 17 points ahead of it. United flew 3,392 flights on the same city pair under all its flight numbers, including this one, and those ran 73.6% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1793thin sample | 364 | 91.4% | 64 min | 1.37% | A |
| All United Airlines on DCA–ORD | 3,392 | 73.6% | 89 min | 2.21% | C |
| All carriers on DCA–ORD | 6,992 | 74.3% | 88 min | 3.40% | C− |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1793 quarter by quarter
Quarter by quarter UA 1793 held fairly steady: 96.7% in Jul–Sep 2025, 89.1% in Oct–Dec 2025, 87.1% in Jan–Mar 2026 and 92.2% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights96.7%
- Oct–Dec 202592 flights89.1%
- Jan–Mar 202689 flights87.1%
- Apr–Jun 202691 flights92.2%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1793 ranged from 84.3% on Sunday to 96.2% on Tuesday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why UA 1793 runs late
One category carries most of the weight here. National Airspace System accounts for 49% of the 1,982 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.
- 49%National Airspace System
- 40%Carrier
- 11%Late-arriving aircraft
49% 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 979 minutes out of 1,982, against a national NAS share of 21%. The split is drawn from 1,982 delay minutes reported on UA 1793.
Cancellations sit at 1.37% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.2% 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 612 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 six other city pairs in the data, including ORD to MSP (168), MSP to DEN (52) and ORD to LGA (49), but none flew often enough under UA 1793 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DCA to ORD only.
One caution: this is a thin sample. 364 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 1793
For a booking, UA 1793 has one of the better records a US domestic flight can show: 91.4% on time and 1.37% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- DCA to ORD, every carrier and departure
- ORD to DCA, the return direction
- American Airlines 2903 on the same route77.6%
- American Airlines 1200 on the same route74.4%
- United Airlines 2201 on the same route91.8%
- United Airlines 2148 on the same route51.5%
- Ronald Reagan Washington National (DCA) delay statistics
- Chicago O'Hare International (ORD) 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.