About 1 in 7 DL 4149 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.8% were cancelled. The typical flight landed 11 minutes early.
DL 4149: SEA → EUG
Scheduled to leave Seattle at 11:30 a.m. local time, operated by SkyWest as OO 4149. Over the past year it arrived on time 85% of the time (239 flights), worse than other DL flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 77% |
| Tuesday | 34 | 85% |
| Wednesday | 34 | 85% |
| Thursday | 34 | 74% |
| Friday | 34 | 97% |
| Saturday | 34 | 91% |
| Sunday | 34 | 85% |
Why it was late
All flights SEA → EUG · Connecting off DL 4149? Check the risk
Questions
How often is DL 4149 from SEA to EUG late?
Delta Air Lines 4149 from Seattle, WA to Eugene, OR arrived 15 or more minutes late, was diverted or was cancelled on 15% of 239 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.