Flight number record
UA 1389
United Airlines · Columbus to Denver
- Route
- CMH → DEN
- Departs
- 15:30
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1389, check with United Airlines.
UA 1389 lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 363 flights, with a median arrival 8 minutes early.
Key figures
On time
77.2%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
0.55%
National rate is 1.89%
1 hour+ late
7.9%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When UA 1389 flies
UA 1389 flies CMH to DEN without a single fixed slot. Its most common scheduled departure was 15:30, used on 125 of 363 flights, with 16:37 (37 flights) next.
- Departs 15:30125 flights34.4%
- Departs 16:3737 flights10.2%
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 15:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 1389 runs 5 points better at 77.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
UA 1389 next to CMH to DEN
Every carrier on CMH to DEN combined arrived on time 79.4% of the time across 1,776 flights, so UA 1389 is 2 points behind it. United flew 728 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1389thin sample | 363 | 77.2% | 63 min | 0.55% | B+ |
| All United Airlines on CMH–DEN | 728 | 81.6% | 72 min | 0.82% | B+ |
| All carriers on CMH–DEN | 1,776 | 79.4% | 71 min | 0.62% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1389 quarter by quarter
UA 1389 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.5% on time and its weakest Jul–Sep 2026 at 57.6%, a swing of 29 points on roughly 91 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 202530 flights—
- Oct–Dec 202591 flights74.4%
- Jan–Mar 202690 flights82.0%
- Apr–Jun 202691 flights86.5%
- Jul–Sep 202661 flights57.6%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1389 ranged from 72.5% on Friday to 80.8% on Tuesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 1389 runs when it is late
UA 1389 often beats the schedule: 105 of 356 completed flights, 29%, arrived 15 minutes or more early. The 81 late arrivals split 32 under half an hour, 21 between 30 and 60 minutes, and 28 an hour or more.
- 15+ min early105 flights29.5%
- Within 15 min170 flights47.8%
- 15–29 min late32 flights9.0%
- 30–59 min late21 flights5.9%
- 1–2 hours late17 flights4.8%
- 2+ hours late11 flights3.1%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
14 of 72 late departures made up the time and arrived on time, 19% of them. In the other direction, 23 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DEN.
The worst days
Worst days for UA 1389
The latest arrival of the period was on 6 March 2026, 5 hours 25 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 5 hours 25 minutes | Late-arriving aircraft |
| 27 July 2026 | 5 hours 9 minutes | Carrier |
| 28 July 2026 | 4 hours 19 minutes | National Airspace System |
| 17 February 2026 | 4 hours 6 minutes | National Airspace System |
| 16 September 2025 | 2 hours 55 minutes | National Airspace System |
Delay causes
Why UA 1389 runs late
National Airspace System accounts for 51% of the 5,129 delay minutes carriers reported here, and the remaining four split what is left.
- 51%National Airspace System
- 31%Carrier
- 18%Late-arriving aircraft
- 0%Extreme weather
51% 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 2,598 minutes out of 5,129, against a national NAS share of 21%. The split is drawn from 5,129 delay minutes reported on UA 1389.
Cancellations are rare at 0.55%, below the national 1.89% 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
7.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,154 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 four other city pairs in the data, including DEN to SFO (180), DEN to DRO (36) and SFO to SAN (15), but none flew often enough under UA 1389 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CMH to DEN 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 1389
For a booking, read UA 1389 as 77.2% on time with 0.55% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- CMH to DEN, every carrier and departure
- DEN to CMH, the return direction
- United Airlines 728 on the same route85.5%
- John Glenn Columbus International (CMH) delay statistics
- Denver International (DEN) 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
- The best time of day to fly, according to 7.05 million flight records
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.