Miami International to Seattle-Tacoma
2721 miles great-circle distance, typically flown in 5h 52m with 6 airlines operating direct service from Miami International (MIA) to Seattle-Tacoma (SEA). Cheapest fares are usually in Jun (around $167 return), with peak prices in Jun (around $167). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Miami International
Miami International is American Airlines' largest hub for Latin American flying — over 60% of all US-to-Latin America traffic routes through here. Three terminals N, S and CW are connected by the MIA Mover people mover, with Metrorail Orange Line and Tri-Rail commuter trains both running from the airport to downtown and Fort Lauderdale. International long-haul east-coast schedules favour MIA over JFK; Caribbean and Latin connections are the deepest of any US airport.
Arriving in Seattle
Seattle-Tacoma is 14 miles south of downtown Seattle, with the Link Light Rail Red Line running directly from the airport station to Westlake in 38 minutes for $3.25 — possibly the simplest big-city airport transfer in the United States. Fares peak in mid-summer (June–August) and around Bumbershoot/Labor Day; January and February are the cheapest months despite winter rain.
Who flies MIA to SEA?
| Airline | IATA | Flight time | Cabin |
| American Airlines | AA | 5h 52m | Economy |
| Frontier Airlines | F9 | 5h 52m | Economy |
| Spirit Airlines | NK | 5h 52m | Economy |
| Delta Air Lines | DL | 5h 52m | Economy |
| United Airlines | UA | 5h 52m | Economy |
| JetBlue Airways | B6 | 5h 52m | Economy |
6 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly MIA→SEA
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Miami to Seattle FAQs
Direct flights from Miami International (MIA) to Seattle-Tacoma (SEA) take approximately 5h 52m for the 2721-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
Jun is typically the cheapest month on this route, with one-way fares from $138. Jun is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
6 carriers operate direct service from Miami International (MIA) to Seattle-Tacoma (SEA): American Airlines, Frontier Airlines, Spirit Airlines, Delta Air Lines, United Airlines and 1 more. Frequencies vary by season and carrier — American Airlines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Seattle-Tacoma (SEA) is the primary international airport for Seattle. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.