Cheap Flights from Seattle to Miami from US$133

Frequently Asked Questions

• What are the cheapest flights from Seattle to Miami (SEA-MIA)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$133 on Cheapest nonstop routes (e.g. SEA to MIA on Sat, Aug 29), while Frontier Airlines offers Cheapest nonstop round-trips from US$264 departing on Sat, Jul 25 and returning on Sat, Aug 1.

• Which airlines offer direct flights from Seattle to Miami?

  At the moment, you can catch a nonstop flight from Seattle to Miami with the following airlines, including: Alaska Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Seattle to Miami?

  It takes about 6 hours 20 minutes to fly from Seattle to Miami.

• When is the best time to book flights from Seattle to Miami?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Miami is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Seattle to Miami?

  Based on Trip.com data in the past 4 weeks, there is 26 flight per week flying from Seattle to Miami. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS305 (08:33)

• How can I find the best deals on flights from Seattle to Miami?

  To find best deals on flights from Seattle to Miami, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Aug 29, with one-way flights priced at just US$133.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Miami travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Seattle (SEA) to Miami (MIA) the cheapest?

  The cheapest months to fly from Seattle to Miami is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Seattle to Miami on?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Seattle to Miami on July 21, 2026 with Frontier Airlines, with prices starting at US$128.

• Which airports can I fly to for Miami from Seattle?

  You can land at any one of the following hubs in Miami, with Seattle-Tacoma International Airport to Miami International Airport (SEA-MIA) is by far the most common option on this route: Miami International Airport (MIA) Opa Locka Executive Airport (OPF).

• Is there any time difference between Seattle and Miami?

  The time difference between Miami and Seattle is 3h.

• How do I change or cancel my ticket from Seattle to Miami?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.