Flight number record
UA 1673
United Airlines · Cleveland to Chicago
- Route
- CLE → ORD
- Departs
- 18:00
- Flights
- 300
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1673, check with United Airlines.
UA 1673 earns an F, which is as low as this site's scale goes for a reason. Only 50.2% of flights arrive inside the 15-minute window, 27 points worse than the national rate of 77.6%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 300 flights, with a median arrival 14 minutes late.
The national on-time rate over the same period is 77.6%, so UA 1673 runs 27 points behind the country as a whole. Across a thousand flights that is about 274 extra late arrivals.
Key figures
On time
50.2%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
3.00%
National rate is 1.81%
1 hour+ late
15.1%
National rate is 8.1%
These figures cover 300 flights between July 2025 and June 2026. Beyond the headline rate, 15.1% 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 1673 flies
UA 1673 flies CLE to ORD without a single fixed slot. Its most common scheduled departure was 18:00, used on 78 of 300 flights, with 18:05 (77 flights) and 17:53 (67 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 18:0078 flights26.0%
- Departs 18:0577 flights25.7%
- Departs 17:5367 flights22.3%
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 18:00 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and UA 1673 runs 18 points worse at 50.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
UA 1673 next to CLE to ORD
Every carrier on CLE to ORD combined arrived on time 74.6% of the time across 4,897 flights, so UA 1673 is 24 points behind it. United flew 2,173 flights on the same city pair under all its flight numbers, including this one, and those ran 77.0% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 29 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1673thin sample | 300 | 50.2% | 71 min | 3.00% | F |
| All United Airlines on CLE–ORD | 2,173 | 77.0% | 75 min | 1.47% | B |
| All carriers on CLE–ORD | 4,897 | 74.6% | 85 min | 3.43% | C− |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1673 quarter by quarter
UA 1673 did not run the same all year. Its best quarter was Apr–Jun 2026 at 58.9% on time and its weakest Jul–Sep 2025 at 40.0%, a swing of 19 points on roughly 75 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 202579 flights40.0%
- Oct–Dec 202564 flights56.5%
- Jan–Mar 202666 flights43.8%
- Apr–Jun 202691 flights58.9%
Scale runs 30% to 65%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1673 did best on Friday at 68.3% on time and worst on Wednesday at 32.6%. Each day rests on about 43 flights, so a gap of 36 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1673 runs late
One category carries most of the weight here. National Airspace System accounts for 70% of the 10,000 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.
- 70%National Airspace System
- 21%Late-arriving aircraft
- 6%Carrier
- 3%Extreme weather
70% 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 7,164 minutes out of 10,000, against a national NAS share of 21%. The split is drawn from 10,296 delay minutes reported on UA 1673.
Cancellations run at 3.00%, against 1.81% nationally. That is roughly 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. 15.1% 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.
UA 1673 is not only a CLE to ORD flight. It also flew ORD to DFW (266 flights, 63.8% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ORD to DFWthin sample | 266 | 63.8% | 72 min | 3.01% | D− |
What to do with this
Booking UA 1673
For a booking, the cancellation rate is the figure to plan around on UA 1673: 3.00% of its 300 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- CLE to ORD, every carrier and departure
- ORD to CLE, the return direction
- Cleveland Hopkins International (CLE) 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
- How often a connection fails at the major US hubs
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.