Flight number record
UA 703
United Airlines · Denver to Billings
- Route
- DEN → BIL
- Departs
- 11:45
- Flights
- 324
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 703, check with United Airlines.
UA 703 lands a B+, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That rests on 324 flights, with a median arrival 7 minutes early.
Key figures
On time
79.9%
Arrivals under 15 minutes late, of 323 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
5.6%
National rate is 8.3%
These figures cover 324 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 703 flies
UA 703 is scheduled to leave Denver (DEN) at 11:45 local time and reach Billings (BIL) at 13:23. That slot held for 324 of the 324 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 11:45324 flights100.0%
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 11:45 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 703 runs level with that at 79.9%. 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 703 next to DEN to BIL
Every carrier on DEN to BIL combined arrived on time 80.3% of the time across 1,774 flights, so UA 703 is about level with it. United flew 725 flights on the same city pair under all its flight numbers, including this one, and those ran 79.2% on time. Across its whole network United Airlines managed 78.8%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 703thin sample | 324 | 79.9% | 54 min | 0.00% | B+ |
| All United Airlines on DEN–BIL | 725 | 79.2% | 68 min | 0.14% | B+ |
| All carriers on DEN–BIL | 1,774 | 80.3% | 69 min | 0.73% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 703 quarter by quarter
UA 703 did not run the same all year. Its best quarter was Oct–Dec 2025 at 89.1% on time and its weakest Jul–Sep 2025 at 73.3%, a swing of 16 points on roughly 65 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 flights73.3%
- Oct–Dec 202555 flights89.1%
- Jan–Mar 202690 flights74.2%
- Apr–Jun 202691 flights81.3%
- Jul–Sep 202658 flights81.0%
Scale runs 65% to 95%.
By weekday, UA 703 did best on Wednesday at 91.5% on time and worst on Saturday at 69.6%. Each day rests on about 46 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 703 runs when it is late
The 65 late arrivals split 23 under half an hour, 24 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early65 flights20.1%
- Within 15 min193 flights59.8%
- 15–29 min late23 flights7.1%
- 30–59 min late24 flights7.4%
- 1–2 hours late14 flights4.3%
- 2+ hours late4 flights1.2%
Scale runs 0% to 100%.
Share of 323 completed flights by arrival against schedule.
10 of 62 late departures made up the time and arrived on time, 16% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for UA 703
The latest arrival of the period was on 6 March 2026, 6 hours 6 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 6 hours 6 minutes | Carrier |
| 28 July 2026 | 2 hours 56 minutes | Late-arriving aircraft |
| 17 March 2026 | 2 hours 29 minutes | Late-arriving aircraft |
| 14 March 2026 | 2 hours 20 minutes | Extreme weather |
| 27 June 2026 | 1 hour 40 minutes | Late-arriving aircraft |
Delay causes
Why UA 703 runs late
Late-arriving aircraft accounts for 53% of the 3,487 delay minutes carriers reported here, and the remaining four split what is left.
- 53%Late-arriving aircraft
- 30%Carrier
- 13%National Airspace System
- 3%Extreme weather
53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,487 reported delay minutes here, that single category outweighs weather by 15 to one. The split is drawn from 3,487 delay minutes reported on UA 703.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.6% 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 roughly 55 minutes, which a normal layover absorbs.
The same number turns up on five other city pairs in the data, including LAX to DEN (159), SDF to DEN (37) and XNA to DEN (23), but none flew often enough under UA 703 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to BIL only.
One caution: this is a thin sample. 324 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 703
For a booking, read UA 703 as 79.9% on time with 0.00% cancelled over 324 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to BIL, every carrier and departure
- BIL to DEN, the return direction
- SkyWest Airlines 5498 on the same route75.9%
- United Airlines 1417 on the same route75.5%
- 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
- 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.