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Route on-time record

EUG to SAN: most on-time flights and the best time to fly

Eugene (Eugene Airport) to San Diego (San Diego International Airport). 363 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Southwest 429 at 11:10 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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EUG → SAN

Eugene to San Diego: 363 nonstop flights a year

On time (12 months)

80%

Cancelled

1.1%

avg delay 12 min

Best time to leave

3 to 6 PM

84% on time vs 68% 6 to 9 PM

Most reliable airline

Southwest

82% chance on time

Check EUG to SAN fares

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. #1 · Southwest 429

    11:10 AM → 1:40 PM2h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    85%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 91% of the time (22 flights, Jun 2025 to May 2026).

    Limited track record · 22 flights

    Find Southwest 429 fares Opens this date on Aviasales

  2. #2 · SkyWest 3422 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:39 AM → 10:09 AM2h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    84%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 95% of the time (20 flights, Jun 2025 to May 2026).
    • Lands inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 20 flights

    Find 7:39 AM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 3423 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:08 PM → 2:37 PM2h 29m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    82%

    chance on time

    On time (history)
    92%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 92% of the time (24 flights, Jun 2025 to May 2026).

    Limited track record · 24 flights

    Find 12:08 PM flight fares Opens this date on Aviasales

  4. #4 · Southwest 739

    3:45 PM → 6:10 PM2h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 860; its record covers all of them.

    81%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 81% of the time (16 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (3 to 6 PM: 84% on time; 6 to 9 PM: 68%).

    Limited track record · 16 flights

    Find Southwest 739 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines82%

    83 flights · 87% on time as flown · 0.7% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%

    207 flights · 77% on time as flown · 1.0% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon83%

    103 flights · avg delay 11 min

  • 3 to 6 PM84%

    110 flights · avg delay 8 min

  • 6 to 9 PM68%

    104 flights · avg delay 19 min

Best day: Tuesday (88%). Worst: Friday (68%).

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.

J
51
F
53
M
76
A
93
M
87
J
75
J
70
A
80
S
88
O
72
N
78
D
76

What delays this route

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, boarding)33%
  • Air traffic control and airport volume15%
  • Severe weather2%

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

Finding the most reliable connections from EUG to SAN…

EUG to SAN questions

What time of day is best to fly EUG to SAN?
3 to 6 PM: 84% of flights arrived on time, against 68% for departures 6 to 9 PM.
Which airline is most on time from EUG to SAN?
Southwest, with a season-adjusted 82% chance of operating and arriving on time over 83 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 SAN?
January (51% on time); the best was April (93%), 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

Live status: FAA delays and ground stops