SEA Today
Rough day, not the worst this week. Departures at 69%, arrivals better at 94%. Early morning flights ran 39 points better than midday. Fly 5am - 9am if you can. That window has been running at 88%.
What This Means for You
Slower day at SEA. 69% on-time. About 1 in 3 departures is delayed. Check your flight status before heading to the airport. If you can rebook to an earlier departure, do it.
If you can choose your departure time: early morning flights (5am - 9am) run at 88%. Midday (12pm - 3pm) drops to 49%. That is a 39-point difference from the same airport on the same day.
Vancouver International Airport (YVR) is 127 miles away and running 78% today. If your route is available from both airports, YVR is the better bet right now.
Airline Performance at SEA
Icelandair is the most reliable carrier at SEA with 93% on-time. ITA Airways runs 5%. That is a 88-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 Midday is a 39-point swing at SEA. The early morning block runs at 88%. If you have any say in your departure time, this is the biggest thing you can control.
Through the Day
Morning held up fine at 85%. 4am is where it broke down, dropping to 33%. Currently at 69%, well below the morning numbers. A 67-point swing from best to worst today.
vs Last Week
Down 6 points from last week (62% vs 68%). Arrivals roughly the same. Mon was the worst day, Sun the best.
The Bigger Picture
SEA has been bouncing between 51% and 91%. Best day was Apr 5 at 91%. Worst was Mar 30 at 51%. The norm is 74-80%, which is just how SEA runs.
About SEA Delays
Seattle–Tacoma International Airport (SEA) is currently experiencing moderate delays with 69% on-time departures and 94% on-time arrivals. This data updates every 15 minutes from FAA sources.
Seattle–Tacoma International Airport has averaged 62% 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.