Likely delayed: there are delays at OO 3100's airports as of 6:45 PM ET. It arrived on time 68.1% of the time in June-August 2026. When it was late, the average delay was 35 minutes. None were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
May not fly today
Leg 2 of 3 (SAN → SFO): Next leg SAN → SFO, scheduled 5:22 PM local time. No delays at SAN right now. This flight number flew about 5 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Medium 0% of its flights were cancelled in June-August 2026; SFO has major delays.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check SkyWest for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| MSO → SEA Missoula, MT to Seattle, WA | 11:22 AM → 12:02 PM | 70% |
| SAN → SFO San Diego, CA to San Francisco, CA | 5:22 PM → 7:06 PM | 46% |
| SEA → EUG Seattle, WA to Eugene, OR | 5:53 PM → 7:10 PM | 88% |
Local times. Schedules change; check your booking.
How reliable is OO 3100?
| Arrived on time (within 15 min) | 68.1% |
| Average delay when late | 35 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 91 |
Best and worst days to fly OO 3100
OO 3100 was most reliable on Tuesdays (83% on time) and least reliable on Mondays (57%).
| Monday | |
| Tuesday | |
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by SkyWest to the Department of Transportation.
Other flights MSO → SEA
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the SkyWest app.
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is OO 3100 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:45 PM ET. For this flight's gate and exact status, check the SkyWest app.
Is OO 3100 usually on time?
OO 3100 arrived within 15 minutes of schedule 68.1% of the time in June-August 2026, with an average delay of 35 minutes when late.
How often is OO 3100 cancelled?
0% of OO 3100 flights were cancelled in June-August 2026.