Flight number record
UA 793
United Airlines · Chicago to Dallas-Fort Worth
- Route
- ORD → DFW
- Departs
- 15:35
- Flights
- 286
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 793, check with United Airlines.
UA 793 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 286 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.6%, so UA 793 runs 10 points behind the country as a whole. Across a thousand flights that is about 100 extra late arrivals.
Key figures
On time
67.6%
Arrivals under 15 minutes late, of 275 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
3.15%
National rate is 1.81%
1 hour+ late
17.8%
National rate is 8.1%
These figures cover 286 flights between July 2025 and June 2026. Beyond the headline rate, 17.8% 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.
Schedule
When UA 793 flies
UA 793 flies ORD to DFW without a single fixed slot. Its most common scheduled departure was 15:35, used on 78 of 286 flights, with 15:40 (56 flights) and 16:20 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:3578 flights27.3%
- Departs 15:4056 flights19.6%
- Departs 16:2042 flights14.7%
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 15:35 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and UA 793 runs 5 points worse at 67.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 793 next to ORD to DFW
Every carrier on ORD to DFW combined arrived on time 69.7% of the time across 6,955 flights, so UA 793 is 2 points behind it. United flew 2,010 flights on the same city pair under all its flight numbers, including this one, and those ran 73.2% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 793thin sample | 286 | 67.6% | 97 min | 3.15% | C− |
| All United Airlines on ORD–DFW | 2,010 | 73.2% | 72 min | 1.29% | C |
| All carriers on ORD–DFW | 6,955 | 69.7% | 87 min | 3.09% | C− |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 793 quarter by quarter
Quarter by quarter UA 793 held fairly steady: 65.4% in Jul–Sep 2025, 67.3% in Oct–Dec 2025, 70.7% in Jan–Mar 2026 and 67.8% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202581 flights65.4%
- Oct–Dec 202552 flights67.3%
- Jan–Mar 202662 flights70.7%
- Apr–Jun 202691 flights67.8%
Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, UA 793 did best on Tuesday at 77.8% on time and worst on Monday at 62.5%. Each day rests on about 41 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 793 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 50% of the 8,608 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.
- 50%Late-arriving aircraft
- 23%National Airspace System
- 22%Carrier
- 5%Extreme weather
50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 8,608 reported delay minutes here, that single category outweighs weather by 9 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 8,608 delay minutes reported on UA 793.
Cancellations run at 3.15%, against 1.81% nationally. That is about one flight in 30 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 routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.8% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 802 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 seven other city pairs in the data, including SFO to ORD (86), DCA to ORD (26) and FLL to EWR (21), but none flew often enough under UA 793 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to DFW only.
One caution: this is a thin sample. 286 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 793
For a booking, the cancellation rate is the figure to plan around on UA 793: 3.15% of its 286 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to DFW, every carrier and departure
- DFW to ORD, the return direction
- United Airlines 2290 on the same route72.9%
- American Airlines 2896 on the same route84.6%
- United Airlines 1673 on the same route63.8%
- Chicago O'Hare International (ORD) delay statistics
- Dallas/Fort Worth International (DFW) 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
- Why the first flight of the morning is statistically safest
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.