Route on-time record
EUG to SFO: most on-time flights and the best time to fly
Eugene (Eugene Airport) to San Francisco (San Francisco International Airport). 998 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was United 335 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
EUG → SFO
Eugene to San Francisco: 998 nonstop flights a year
On time (12 months)
76%
Cancelled
0.8%
avg delay 20 min
Best time to leave
Before 9 AM
92% on time vs 64% 6 to 9 PM
Most reliable airline
United
78% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · United 335
6:00 AM → 7:38 AM1h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 94% of the time (225 flights, Jun 2025 to May 2026).
- Never cancelled in 225 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 64%).
- Lands inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
Strong track record · 225 flights
Find United 335 fares Opens this date on Aviasales#2 · United 2077
2:00 PM → 3:35 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
68%
chance on time
- On time (history)
- 66%
- Cancelled
- 0.0%
- Avg arrival delay
- 23 min
- Arrived on time 66% of the time (328 flights, Jun 2025 to May 2026).
- Never cancelled in 328 scheduled flights.
Strong track record · 328 flights
Find United 2077 fares Opens this date on Aviasales#3 · SkyWest 4662 · sold as United Express, Delta Connection, American Eagle or Alaska
6:51 PM → 8:39 PM1h 48m nonstop
Local times, typical schedule. Last flown 2026-05-31.
49%
chance on time
- On time (history)
- 31%
- Cancelled
- 3.5%
- Avg arrival delay
- 69 min
- Arrived on time 31% of the time (55 flights, Jun 2025 to May 2026).
- Cancelled 3.5% of the time (2 of 57).
- Leaves in this route's least on-time window (6 to 9 PM: 64% on time; Before 9 AM: 92%).
Limited track record · 55 flights
Find 6:51 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines78%
744 flights · 79% on time as flown · 0.5% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)67%
254 flights · 66% on time as flown · 1.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
365 flights · avg delay 9 min
- Noon to 3 PM68%
359 flights · avg delay 21 min
- 6 to 9 PM64%
272 flights · avg delay 33 min
Best day: Tuesday (82%). Worst: Sunday (74%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume55%
- Airline (crew, maintenance, boarding)23%
- Late-arriving aircraft21%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
EUG to SFO questions
- What time of day is best to fly EUG to SFO?
- Before 9 AM: 92% of flights arrived on time, against 64% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from EUG to SFO?
- United, with a season-adjusted 78% chance of operating and arriving on time over 744 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on EUG to SFO?
- April (67% on time); the best was October (88%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from EUG
- SFO to EUG (return)
- EUG to SEA 87%
- EUG to DEN 79%
- EUG to SLC 93%
- EUG to PHX 88%
- EUG to PDX 91%
- EUG to LAS 75%
- EUG to LAX 88%
- EUG to SMF 91%
- EUG to SAN 80%
Live status: FAA delays and ground stops