Flight number record
UA 1763
United Airlines · San Diego to San Francisco
- Route
- SAN → SFO
- Departs
- 13:39
- Flights
- 322
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1763, check with United Airlines.
UA 1763 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 322 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so UA 1763 runs 6 points behind the country as a whole. Across a thousand flights that is about 62 extra late arrivals.
Key figures
On time
71.1%
Arrivals under 15 minutes late, of 322 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
7.8%
National rate is 8.3%
These figures cover 322 flights between September 2025 and August 2026. The median arrival is 4 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 1763 flies
UA 1763 flies SAN to SFO without a single fixed slot. Its most common scheduled departure was 13:39, used on 82 of 322 flights, with 12:49 (37 flights) and 13:10 (37 flights) next.
- Departs 13:3982 flights25.5%
- Departs 12:4937 flights11.5%
- Departs 13:1037 flights11.5%
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 13:39 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 1763 runs 7 points worse at 71.1%. 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 1763 next to SAN to SFO
Every carrier on SAN to SFO combined arrived on time 59.5% of the time across 6,763 flights, so UA 1763 is 12 points ahead of it. United flew 2,666 flights on the same city pair under all its flight numbers, including this one, and those ran 67.2% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1763thin sample | 322 | 71.1% | 60 min | 0.00% | C+ |
| All United Airlines on SAN–SFO | 2,666 | 67.2% | 57 min | 0.56% | C+ |
| All carriers on SAN–SFO | 6,763 | 59.5% | 60 min | 1.29% | D |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1763 quarter by quarter
UA 1763 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.2% on time and its weakest Jul–Sep 2026 at 46.8%, a swing of 43 points on roughly 64 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 flights76.7%
- Oct–Dec 202578 flights82.1%
- Jan–Mar 202661 flights90.2%
- Apr–Jun 202691 flights63.7%
- Jul–Sep 202662 flights46.8%
Scale runs 40% to 95%.
By weekday, UA 1763 did best on Tuesday at 87.2% on time and worst on Thursday at 60.0%. Each day rests on about 46 flights, so a gap of 27 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1763 runs when it is late
UA 1763 often beats the schedule: 97 of 322 completed flights, 30%, arrived 15 minutes or more early. The 93 late arrivals split 29 under half an hour, 39 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early97 flights30.1%
- Within 15 min132 flights41.0%
- 15–29 min late29 flights9.0%
- 30–59 min late39 flights12.1%
- 1–2 hours late14 flights4.3%
- 2+ hours late11 flights3.4%
Scale runs 0% to 100%.
Share of 322 completed flights by arrival against schedule.
11 of 81 late departures made up the time and arrived on time, 14% 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 SFO.
The worst days
Worst days for UA 1763
The latest arrival of the period was on 6 July 2026, 5 hours 24 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 July 2026 | 5 hours 24 minutes | Late-arriving aircraft |
| 18 July 2026 | 5 hours 24 minutes | Late-arriving aircraft |
| 18 June 2026 | 4 hours 27 minutes | Late-arriving aircraft |
| 5 November 2025 | 3 hours 9 minutes | National Airspace System |
| 18 September 2025 | 3 hours 2 minutes | Late-arriving aircraft |
Delay causes
Why UA 1763 runs late
National Airspace System accounts for 52% of the 5,590 delay minutes carriers reported here, and the remaining four split what is left.
- 52%National Airspace System
- 39%Late-arriving aircraft
- 9%Carrier
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,590 reported delay minutes here, that single category outweighs weather by 39 to one. The split is drawn from 5,590 delay minutes reported on UA 1763.
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
7.8% 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 same number turns up on seven other city pairs in the data, including SFO to SEA (53), SFO to ORD (46) and SEA to ORD (37), but none flew often enough under UA 1763 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SAN to SFO only.
One caution: this is a thin sample. 322 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 1763
For a booking, read UA 1763 as 71.1% on time with 0.00% cancelled over 322 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SAN to SFO, every carrier and departure
- SFO to SAN, the return direction
- United Airlines 2117 on the same route73.3%
- SkyWest Airlines 3347 on the same route56.3%
- San Diego International (SAN) delay statistics
- San Francisco International (SFO) 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.