SEA Today
Clean day, better than the weekly average. Departures at 85%, arrivals better at 95%. Early morning flights ran 47 points better than afternoon. Fly 5am - 9am if you can. That window has been running at 87%.
What This Means for You
Good day to fly from SEA. 85% of departures are on time. Your flight will probably leave on schedule. Normal operations.
If you can choose your departure time: early morning flights (5am - 9am) run at 87%. Afternoon (3pm - 6pm) drops to 40%. That is a 47-point difference from the same airport on the same day.
Vancouver International Airport (YVR) is 127 miles away and running 91% today. If your route is available from both airports, YVR is the better bet right now.
Airline Performance at SEA
Virgin Australia is the most reliable carrier at SEA with 58% on-time. ITA Airways runs 0%. That is a 58-point spread. If you have a choice, the airline matters.
SEA Flight Board
Live departures and arrivals at Seattle–Tacoma International Airport.
| Status | Airline | Flight | Destination | Sched | Updated | Gate |
|---|---|---|---|---|---|---|
Pick Your Window
Early Morning vs Afternoon is a 47-point swing at SEA. The early morning block runs at 87%. If you have any say in your departure time, this is the biggest thing you can control.
Through the Day
Morning started OK at 78%. 3pm is where it broke down, dropping to 34%. Evening is thinning out and improving to 60%. A 66-point swing from best to worst today.
vs Last Week
Tracking about the same as last week. Departures at 63%, last week 65%. Arrivals roughly the same. Fri was the worst day, Tue the best.
The Bigger Picture
SEA has been bouncing between 48% and 85%. Best day was May 9 at 85%. Worst was Jul 16 at 48%. The norm is 67-73%, which is just how SEA runs. Today's 85% is a good day by SEA standards.
About SEA Delays
Seattle–Tacoma International Airport (SEA) is currently running on time with 85% on-time departures and 95% on-time arrivals. This data updates every 15 minutes from FAA sources.
Seattle–Tacoma International Airport has averaged 63% on-time departures this week, making it frequently delayed. Performance varies by time of day and weather conditions.
Seattle–Tacoma International Airport is one of 179 FAA-monitored airports with real-time delay tracking. Data includes departure and arrival on-time percentages, updated every 15 minutes, with historical trends available for the past 90 days.
Nearby alternatives include YYJ (Victoria International Airport), YVR (Vancouver International Airport) and PDX (Portland International Airport). When SEA is experiencing delays, these airports may offer better on-time performance.
Early morning departures from Seattle–Tacoma International Airport typically have the highest on-time rates. Delays tend to accumulate throughout the day as cascading effects from earlier disruptions compound. Check the 24-hour trend chart above for today's pattern.