Flight number record
UA 2077
United Airlines · Eugene to San Francisco
- Route
- EUG → SFO
- Departs
- 14:09
- Flights
- 352
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2077, check with United Airlines.
UA 2077 earns an F+, which is as low as this site's scale goes for a reason. Only 53.8% of flights arrive inside the 15-minute window, 24 points worse than the national rate of 77.3%. Late arrivals average about an hour. Treat any tight connection here as a coin flip. That rests on 352 flights, with a median arrival 11 minutes late.
The national on-time rate over the same period is 77.3%, so UA 2077 runs 24 points behind the country as a whole. Across a thousand flights that is about 235 extra late arrivals.
Key figures
On time
53.8%
Arrivals under 15 minutes late, of 351 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.28%
National rate is 1.89%
1 hour+ late
15.1%
National rate is 8.3%
These figures cover 352 flights between September 2025 and August 2026. Beyond the headline rate, 15.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 2077 flies
UA 2077 flies EUG to SFO without a single fixed slot. Its most common scheduled departure was 14:09, used on 102 of 352 flights, with 13:59 (81 flights) and 13:57 (76 flights) next.
- Departs 14:09102 flights29.0%
- Departs 13:5981 flights23.0%
- Departs 13:5776 flights21.6%
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 14:09 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 2077 runs 18 points worse at 53.8%. 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 2077 next to EUG to SFO
Every carrier on EUG to SFO combined arrived on time 65.6% of the time across 1,004 flights, so UA 2077 is 12 points behind it. United flew 756 flights on the same city pair under all its flight numbers, including this one, and those ran 72.9% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 25 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2077thin sample | 352 | 53.8% | 59 min | 0.28% | F+ |
| All United Airlines on EUG–SFO | 756 | 72.9% | 67 min | 0.53% | C+ |
| All carriers on EUG–SFO | 1,004 | 65.6% | 76 min | 0.90% | C+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2077 quarter by quarter
UA 2077 did not run the same all year. Its best quarter was Jan–Mar 2026 at 76.9% on time and its weakest Jul–Sep 2026 at 26.7%, a swing of 50 points on roughly 70 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 202592 flights66.3%
- Jan–Mar 202678 flights76.9%
- Apr–Jun 202691 flights33.0%
- Jul–Sep 202661 flights26.7%
Scale runs 20% to 80%.
By weekday, UA 2077 did best on Tuesday at 65.2% on time and worst on Wednesday at 45.7%. Each day rests on about 50 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2077 runs when it is late
The 162 late arrivals split 53 under half an hour, 56 between 30 and 60 minutes, and 53 an hour or more.
- 15+ min early46 flights13.1%
- Within 15 min143 flights40.7%
- 15–29 min late53 flights15.1%
- 30–59 min late56 flights16.0%
- 1–2 hours late36 flights10.3%
- 2+ hours late17 flights4.8%
Scale runs 0% to 100%.
Share of 351 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 141 departures that left 15 minutes late or more, only 9 made it up before arrival. In the other direction, 30 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 2077
The latest arrival of the period was on 6 June 2026, 6 hours 41 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across June, May, January and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 June 2026 | 6 hours 41 minutes | Carrier |
| 30 May 2026 | 4 hours 10 minutes | Carrier |
| 3 January 2026 | 3 hours 41 minutes | National Airspace System |
| 19 December 2025 | 3 hours 35 minutes | Late-arriving aircraft |
| 28 May 2026 | 3 hours 11 minutes | National Airspace System |
Delay causes
Why UA 2077 runs late
National Airspace System accounts for 56% of the 9,554 delay minutes carriers reported here, and the remaining four split what is left.
- 56%National Airspace System
- 26%Late-arriving aircraft
- 18%Carrier
56% 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 5,342 minutes out of 9,554, against a national NAS share of 21%. The split is drawn from 9,554 delay minutes reported on UA 2077.
Cancellations are rare at 0.28%, 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
15.1% 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 four other city pairs in the data, including SFO to DFW (65), SFO to ORD (26) and SFO to CLE (16), but none flew often enough under UA 2077 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EUG to SFO only.
One caution: this is a thin sample. 352 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 2077
For a booking, UA 2077 is a flight to put a long connection behind. 15.1% 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
- EUG to SFO, every carrier and departure
- SFO to EUG, the return direction
- United Airlines 335 on the same route94.5%
- 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
- How often a connection fails at the major US hubs
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.