Looking for more low-fare flights?
Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.
Find low faresSouthwest® flights from Miami to Seattle/Tacoma from $129
expand_more
1 Passenger
expand_morePromo Code
expand_moretoday
today
Low fares from Miami to Seattle/Tacoma
$
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 03/17/2026
One-way
Basic
From
$129
Seen: 15 hrs ago
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 05/01/2026
One-way
Basic
From
$139
Seen: 14 hrs ago
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 03/19/2026
One-way
Basic
From
$139
Seen: 15 hrs ago
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 04/09/2026
One-way
Basic
From
$149
Seen: 19 hrs ago
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 03/20/2026
One-way
Basic
From
$149
Seen: 15 hrs ago
Miami (MIA)to
Seattle/Tacoma (SEA)
Depart: 03/03/2026
One-way
Basic
From
$164
Seen: 13 hrs ago
Explore flights from Miami to Seattle/Tacoma
location_on
location_on
Flight Details
Departing from:
Miami International Airport
Arriving at:
Seattle/Tacoma International Airport
Distance:
2724 miles
Route Information
33† Weekly flights
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
There are 33 weekly flights from Miami to Seattle/Tacoma on Southwest Airlines.
To find the lowest fares by day and time to fly Miami to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
Yes! Flights from Miami to Seattle/Tacoma—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.