The observed direct connection between Miami International Airport (MIA) and Seattle–Tacoma International Airport (SEA) covers approximately 2,721 mi. The estimated flight time is around 6h. Alaska Airlines, American Airlines, China Airlines and Delta Air Lines have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Miami from Seattle by air?
The great-circle distance between Miami International Airport and Seattle–Tacoma International Airport is approximately 2,721 mi.
How long is the flight from Miami to Seattle?
Based on the distance, the estimated flight time is about 6h. This is an estimate, not a schedule.
Is there a direct connection from Miami to Seattle?
Yes, a direct connection between MIA and SEA has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Alaska Airlines, American Airlines, China Airlines and Delta Air Lines.
How often is there a flight from Miami to Seattle?
On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 705 observed flights. Mainly American Airlines, China Airlines, Alaska Airlines. That is an observation, not a timetable.
What is the current time difference between Miami and Seattle?
Seattle is currently 3 hours behind Miami.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.