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Route on-time record

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

Seattle (Seattle–Tacoma International Airport) to Eugene (Eugene Airport). 1,986 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 1.3% were cancelled. The most reliable flight number was SkyWest 4149 at 9:40 AM.

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

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SEA → EUG

Seattle to Eugene: 1,986 nonstop flights a year

On time (12 months)

83%

Cancelled

1.3%

avg delay 10 min

Best time to leave

Noon to 3 PM

88% on time vs 82% 9 AM to noon

Most reliable airline

SkyWest

85% chance on time

Check SEA to EUG fares

Lowest nonstop fare seen in the next two months: $275 (Alaska 2176 on 2026-10-24). 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 · SkyWest 4149 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:40 AM → 11:00 AM1h 20m nonstop

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

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    1.3%
    Avg arrival delay
    6 min
    • Arrived on time 91% of the time (152 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (9 AM to noon: 82% on time; Noon to 3 PM: 88%).
    • Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).

    Moderate track record · 152 flights

    Find 9:40 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 4124 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:55 PM → 5:10 PM1h 20m nonstop

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

    89%

    chance on time

    On time (history)
    90%
    Cancelled
    0.6%
    Avg arrival delay
    5 min
    • Arrived on time 90% of the time (347 flights, Jun 2025 to May 2026).
    • Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).

    Strong track record · 347 flights

    Find 3:55 PM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 3855 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:35 PM → 11:50 PM1h 15m nonstop

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

    88%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 89% of the time (361 flights, Jun 2025 to May 2026).
    • Never cancelled in 361 scheduled flights.
    • Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).

    Strong track record · 361 flights

    Find 10:35 PM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 3030 · sold as United Express, Delta Connection, American Eagle or Alaska

    2:08 PM → 3:23 PM1h 15m nonstop

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

    85%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 84% of the time (19 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Noon to 3 PM: 88% on time; 9 AM to noon: 82%).
    • Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).

    Limited track record · 19 flights

    Find 2:08 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 3100 · sold as United Express, Delta Connection, American Eagle or Alaska

    5:53 PM → 7:10 PM1h 17m nonstop

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

    71%

    chance on time

    On time (history)
    58%
    Cancelled
    0.0%
    Avg arrival delay
    23 min
    • Arrived on time 58% of the time (19 flights, Jun 2025 to May 2026).
    • Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
    • 78% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 19 flights

    Find 5:53 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)85%

    1,537 flights · 87% on time as flown · 1.4% cancel

On time by departure time

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

  • 9 AM to noon82%

    565 flights · avg delay 11 min

  • Noon to 3 PM88%

    76 flights · avg delay 5 min

  • 3 to 6 PM84%

    435 flights · avg delay 9 min

  • 6 to 9 PM83%

    282 flights · avg delay 8 min

  • After 9 PM83%

    608 flights · avg delay 10 min

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
82
F
84
M
82
A
86
M
84
J
78
J
81
A
83
S
87
O
89
N
90
D
80

What delays this route

  • Airline (crew, maintenance, boarding)45%
  • Late-arriving aircraft32%
  • Severe weather12%
  • Air traffic control and airport volume10%

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 SEA to EUG…

SEA to EUG questions

What time of day is best to fly SEA to EUG?
Noon to 3 PM: 88% of flights arrived on time, against 82% for departures 9 AM to noon.
Which airline is most on time from SEA to EUG?
SkyWest, with a season-adjusted 85% chance of operating and arriving on time over 1,537 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 SEA to EUG?
June (78% on time); the best was November (90%), 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.

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Live status: FAA delays and ground stops