Flight number record
UA 1793
United Airlines · Washington to Chicago
- Route
- DCA → ORD
- Departs
- 06:30
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. When something does go wrong the average delay runs about an hour. That rests on 363 flights, with a median arrival 7 minutes early.
Set against the rest of the country, UA 1793's record is 14 points better than the US average of 77.3%. That gap is worth roughly 137 fewer late arrivals for every thousand flights.
Key figures
On time
91.0%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
1.93%
National rate is 1.89%
1 hour+ late
2.2%
National rate is 8.3%
These figures cover 363 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 1793 flies
UA 1793 flies DCA to ORD without a single fixed slot. Its most common scheduled departure was 06:30, used on 275 of 363 flights, with 06:25 (55 flights) next.
- Departs 06:30275 flights75.8%
- Departs 06:2555 flights15.2%
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 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 level with that at 91.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
UA 1793 next to DCA to ORD
Every carrier on DCA to ORD combined arrived on time 73.8% of the time across 7,112 flights, so UA 1793 is 17 points ahead of it. United flew 3,411 flights on the same city pair under all its flight numbers, including this one, and those ran 73.8% on time. 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 1793thin sample | 363 | 91.0% | 67 min | 1.93% | A |
| All United Airlines on DCA–ORD | 3,411 | 73.8% | 87 min | 2.52% | C |
| All carriers on DCA–ORD | 7,112 | 73.8% | 86 min | 3.56% | C− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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, 92.2% in Apr–Jun 2026 and 94.9% in Jul–Sep 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 202530 flights96.7%
- Oct–Dec 202592 flights89.1%
- Jan–Mar 202689 flights87.1%
- Apr–Jun 202691 flights92.2%
- Jul–Sep 202661 flights94.9%
Scale runs 80% to 100%.
By weekday, UA 1793 ranged from 86.0% on Sunday to 95.9% on Monday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 1793 runs when it is late
UA 1793 often beats the schedule: 99 of 356 completed flights, 28%, arrived 15 minutes or more early. Most of the lateness is short. 16 of the 32 late arrivals were under half an hour behind, and 8 reached an hour or more.
- 15+ min early99 flights27.8%
- Within 15 min225 flights63.2%
- 15–29 min late16 flights4.5%
- 30–59 min late8 flights2.2%
- 1–2 hours late3 flights0.8%
- 2+ hours late5 flights1.4%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
Only 10 of 356 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for UA 1793
The latest arrival of the period was on 26 November 2025, 7 hours 5 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 November 2025 | 7 hours 5 minutes | Carrier |
| 8 December 2025 | 3 hours 43 minutes | Late-arriving aircraft |
| 28 August 2026 | 3 hours 40 minutes | Carrier |
| 14 April 2026 | 3 hours 16 minutes | National Airspace System |
| 18 January 2026 | 2 hours 21 minutes | Carrier |
Delay causes
Why UA 1793 runs late
National Airspace System accounts for 50% of the 2,127 delay minutes carriers reported here, and the remaining four split what is left.
- 50%National Airspace System
- 40%Carrier
- 10%Late-arriving aircraft
50% 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 1,064 minutes out of 2,127, against a national NAS share of 21%. The split is drawn from 2,127 delay minutes reported on UA 1793.
Cancellations sit at 1.93% against a national 1.89%, 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 8.3% 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 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.
The same number turns up on seven other city pairs in the data, including ORD to MSP (108), 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. 363 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, read UA 1793 as 91.0% on time with 1.93% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DCA to ORD, every carrier and departure
- ORD to DCA, the return direction
- United Airlines 2148 on the same route49.4%
- American Airlines 2903 on the same route74.6%
- American Airlines 1200 on the same route74.0%
- United Airlines 2201 on the same route90.8%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.