Flight number record
UA 499
United Airlines · San Francisco to Nashville
- Route
- SFO → BNA
- Departs
- 11:05
- Flights
- 310
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 499, check with United Airlines.
UA 499 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 310 flights, with a median arrival 6 minutes early.
Set against the rest of the country, UA 499's record is 7 points better than the US average of 77.3%. That gap is worth roughly 71 fewer late arrivals for every thousand flights.
Key figures
On time
84.4%
Arrivals under 15 minutes late, of 307 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.65%
National rate is 1.89%
1 hour+ late
2.9%
National rate is 8.3%
These figures cover 310 flights between September 2025 and August 2026. The median arrival is 6 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 499 flies
UA 499 flies SFO to BNA without a single fixed slot. Its most common scheduled departure was 11:05, used on 36 of 310 flights, with 09:46 (35 flights) and 09:10 (31 flights) next.
- Departs 11:0536 flights11.6%
- Departs 09:4635 flights11.3%
- Departs 09:1031 flights10.0%
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 11:05 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 499 runs 6 points better at 84.4%. 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 499 next to SFO to BNA
Every carrier on SFO to BNA combined arrived on time 72.0% of the time across 1,174 flights, so UA 499 is 12 points ahead of it. United flew 862 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 78.8%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 499thin sample | 310 | 84.4% | 61 min | 0.65% | B+ |
| All United Airlines on SFO–BNA | 862 | 77.0% | 59 min | 0.46% | B+ |
| All carriers on SFO–BNA | 1,174 | 72.0% | 55 min | 0.43% | C+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 499 quarter by quarter
Quarter by quarter UA 499 held fairly steady: 83.3% in Jul–Sep 2025, 85.6% in Oct–Dec 2025, 82.8% in Jan–Mar 2026, 85.5% in Apr–Jun 2026 and 82.5% in Jul–Sep 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights83.3%
- Oct–Dec 202590 flights85.6%
- Jan–Mar 202666 flights82.8%
- Apr–Jun 202683 flights85.5%
- Jul–Sep 202641 flights82.5%
Scale runs 75% to 90%.
By weekday, UA 499 did best on Thursday at 91.1% on time and worst on Tuesday at 78.3%. Each day rests on about 44 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 499 runs when it is late
UA 499 often beats the schedule: 92 of 307 completed flights, 30%, arrived 15 minutes or more early. Most of the lateness is short. 24 of the 48 late arrivals were under half an hour behind, and 9 reached an hour or more.
- 15+ min early92 flights30.0%
- Within 15 min167 flights54.4%
- 15–29 min late24 flights7.8%
- 30–59 min late15 flights4.9%
- 1–2 hours late4 flights1.3%
- 2+ hours late5 flights1.6%
Scale runs 0% to 100%.
Share of 307 completed flights by arrival against schedule.
A late pushback is often recovered here: of 51 departures that left 15 minutes late or more, 17 still arrived on time. 14 flights left on time and still arrived late.
The worst days
Worst days for UA 499
The latest arrival of the period was on 21 July 2026, 15 hours 14 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 July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 July 2026 | 15 hours 14 minutes | Carrier |
| 4 January 2026 | 2 hours 51 minutes | Carrier |
| 22 July 2026 | 2 hours 17 minutes | Late-arriving aircraft |
| 30 April 2026 | 2 hours 6 minutes | Late-arriving aircraft |
| 3 July 2026 | 2 hours 2 minutes | National Airspace System |
Delay causes
Why UA 499 runs late
Carrier accounts for 54% of the 2,926 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Carrier
- 25%Late-arriving aircraft
- 21%National Airspace System
The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,589 of the 2,926 delay minutes reported here. The split is drawn from 2,926 delay minutes reported on UA 499.
Cancellations are rare at 0.65%, 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
Badly late arrivals are rare here: only 2.9% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 1,969 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The same number turns up on five other city pairs in the data, including BNA to EWR (195), SEA to SFO (93) and PHX to SFO (56), but none flew often enough under UA 499 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SFO to BNA only.
One caution: this is a thin sample. 310 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 499
For a booking, read UA 499 as 84.4% on time with 0.65% cancelled over 310 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SFO to BNA, every carrier and departure
- BNA to SFO, the return direction
- San Francisco International (SFO) delay statistics
- Nashville International (BNA) 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.