$119 Cheap American Airlines flights Seattle (SEA) to Miami (MIA)

Use the "Price (lowest to highest)" filter on Expedia to search for cheap American Airlines round-trip flights from $237 from SEA to MIA. Affordable one-way options from $119 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To find cheap American Airlines fares from Seattle - Tacoma Intl. Airport (SEA) to Miami Intl. Airport (MIA), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

The earliest American Airlines flight from SEA to MIA departs at 10:02PM UTC-8, arriving at 6:45AM UTC-5. If you'd like to head off later in the day, the last American Airlines flight leaves SEA at 10:17PM UTC-8 and lands at MIA at 7:00AM UTC-5. Flying early is often a good option as morning flights are least likely to face cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.