Flight Tacoma International Airport departs from Seattle Tacoma International Airport at 19:43 and arrives at Miami International Airport at 07:07.The flight has a short stop at San Francisco.
The flighttime is about 8h 24m. The distance travelled ("as the bird flies"): 4610 Km. So the average speed is roughly 549 Km.
There is an 3 hour time difference between Seattle and Miami
IDR
