Flight number record
UA 739
United Airlines · Omaha to Chicago
- Route
- OMA → ORD
- Departs
- 15:17
- Flights
- 269
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 739, check with United Airlines.
UA 739 draws a D. 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 269 flights, with a median arrival 6 minutes late.
The national on-time rate over the same period is 77.3%, so UA 739 runs 12 points behind the country as a whole. Across a thousand flights that is about 124 extra late arrivals.
Key figures
On time
64.9%
Arrivals under 15 minutes late, of 265 completed flights
Avg delay
92 min
Across delayed arrivals only, not all flights
Cancelled
1.12%
National rate is 1.89%
1 hour+ late
15.8%
National rate is 8.3%
These figures cover 269 flights between September 2025 and August 2026. Beyond the headline rate, 15.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 739 flies
UA 739 flies OMA to ORD without a single fixed slot. Its most common scheduled departure was 15:17, used on 80 of 269 flights, with 15:13 (75 flights) next.
- Departs 15:1780 flights29.7%
- Departs 15:1375 flights27.9%
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 15:17 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 739 runs 7 points worse at 64.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 739 next to OMA to ORD
Every carrier on OMA to ORD combined arrived on time 74.2% of the time across 3,108 flights, so UA 739 is 9 points behind it. United flew 1,381 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 78.8%, which this flight trails by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 739thin sample | 269 | 64.9% | 92 min | 1.12% | D |
| All United Airlines on OMA–ORD | 1,381 | 73.6% | 95 min | 2.17% | C |
| All carriers on OMA–ORD | 3,108 | 74.2% | 88 min | 3.02% | C− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 739 quarter by quarter
UA 739 did not run the same all year. Its best quarter was Oct–Dec 2025 at 73.6% on time and its weakest Jul–Sep 2026 at 52.5%, a swing of 21 points on roughly 54 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 flights60.0%
- Oct–Dec 202572 flights73.6%
- Jan–Mar 202643 flights71.4%
- Apr–Jun 202662 flights65.0%
- Jul–Sep 202662 flights52.5%
Scale runs 45% to 80%.
By weekday, UA 739 did best on Thursday at 78.9% on time and worst on Monday at 56.4%. Each day rests on about 38 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 739 runs when it is late
The 93 late arrivals split 33 under half an hour, 18 between 30 and 60 minutes, and 42 an hour or more.
- 15+ min early31 flights11.7%
- Within 15 min141 flights53.2%
- 15–29 min late33 flights12.5%
- 30–59 min late18 flights6.8%
- 1–2 hours late21 flights7.9%
- 2+ hours late21 flights7.9%
Scale runs 0% to 100%.
Share of 265 completed flights by arrival against schedule.
16 of 86 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 ORD.
The worst days
Worst days for UA 739
The latest arrival of the period was on 3 July 2026, 9 hours 6 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 July 2026 | 9 hours 6 minutes | National Airspace System |
| 10 June 2026 | 6 hours 42 minutes | National Airspace System |
| 6 March 2026 | 5 hours 33 minutes | Late-arriving aircraft |
| 17 September 2025 | 4 hours 53 minutes | Late-arriving aircraft |
| 11 August 2026 | 4 hours 51 minutes | Late-arriving aircraft |
Delay causes
Why UA 739 runs late
National Airspace System accounts for 51% of the 8,515 delay minutes carriers reported here, and the remaining four split what is left.
- 51%National Airspace System
- 42%Late-arriving aircraft
- 7%Carrier
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,515 reported delay minutes here, that single category outweighs weather by 42 to one. The split is drawn from 8,515 delay minutes reported on UA 739.
Cancellations sit at 1.12% against a national 1.89%, which is ordinary. Diversions add another 0.37%.
Connections and routes
What a delay on this flight costs
15.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on eleven other city pairs in the data, including ORD to MSN (36), ORD to SLC (21) and ORD to PIT (21), but none flew often enough under UA 739 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to OMA to ORD only.
One caution: this is a thin sample. 269 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 739
For a booking, UA 739 is a flight to put a long connection behind. 15.8% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- OMA to ORD, every carrier and departure
- ORD to OMA, the return direction
- Eppley Airfield (OMA) 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
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.