Cheap Flights from Miami (MIA) to Seattle (SEA)

View AU$197 flight on Thu, 25 Sept 2025Opens in a new window

Popular airlines from Miami International Airport (MIA) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Miami (MIA) to Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$332 Return, found 2 days ago
AU$332
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$332 found 2 days ago
Delta
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$332 Return, found 2 days ago
AU$332
Return
found 2 days ago
Select Delta flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$332 found 2 days ago
Alaska Airlines
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$394 Return, found 2 days ago
AU$394
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$394 found 2 days ago
Delta
Fri, 31 Oct - Mon, 3 Nov
MIA
Miami
SEA
Seattle
AU$395 Return, found 3 days ago
AU$395
Return
found 3 days ago
Select Delta flight, departing Fri, 31 Oct from Miami to Seattle, returning Mon, 3 Nov, priced at AU$395 found 3 days ago
American Airlines
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$409 Return, found 2 days ago
AU$409
Return
found 2 days ago
Select American Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$409 found 2 days ago
American Airlines
Fri, 31 Oct - Mon, 3 Nov
MIA
Miami
SEA
Seattle
AU$425 Return, found 3 days ago
AU$425
Return
found 3 days ago
Select American Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Mon, 3 Nov, priced at AU$425 found 3 days ago
Alaska Airlines
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$438 Return, found 2 days ago
AU$438
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$438 found 2 days ago
American Airlines
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$439 Return, found 2 days ago
AU$439
Return
found 2 days ago
Select American Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$439 found 2 days ago
Alaska Airlines
Fri, 31 Oct - Mon, 3 Nov
MIA
Miami
SEA
Seattle
AU$440 Return, found 3 days ago
AU$440
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 31 Oct from Miami to Seattle, returning Mon, 3 Nov, priced at AU$440 found 3 days ago
United
Fri, 31 Oct - Tue, 4 Nov
MIA
Miami
SEA
Seattle
AU$463 Return, found 2 days ago
AU$463
Return
found 2 days ago
Select United flight, departing Fri, 31 Oct from Miami to Seattle, returning Tue, 4 Nov, priced at AU$463 found 2 days ago

Find the cheapest month to fly from Miami (MIA) to Seattle (SEA)

January is typically the cheapest month to fly

From AU$233 - AU$717 per traveller.
Flight from Miami to Seattle route information
Origin airport
Miami Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
AU$332
Distance
4353 km
Average flight time
3 hours 33 mins

Your quick guide to flights from Miami to Seattle

Pick up great flights from Miami to Seattle

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Miami to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Miami to Seattle that take around hours.

Find cheap flights from Miami to Seattle

From the great flight deals with prices currently ranging from AU$332 to AU$463, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Miami to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in October.

Reasons to book your flight from Miami to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Miami to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Miami Airport to Sea-Tac Airport?
If you're planning on travelling from MIA to Sea-Tac Airport, round-trip journeys start from AU$332. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from MIA to SEA?
This can differ between airlines, as each one has its own terms and conditions. Head to the Customer Service Portal, where there are simple instructions on how to cancel online.
How do I find cheap flights from Miami Airport to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Miami Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from MIA to Sea-Tac Airport?
Miami to SeaTac is around 4 400 kilometres, so get ready to spend quite a while in the air. Don't forget to pack all the essentials, from your hoodie to your headphones. Toss in a few snacks to nibble on throughout your journey too.
Which airlines fly direct from Miami Intl. Airport (MIA) to Seattle - Tacoma Intl. Airport (SEA)?
Alaska Airlines (AS) is one of the preferred choices for travellers jetting between MIA and Sea-Tac Airport. Choose from the 30 flights it operates on this route each month. Operating 30 flights a month along this route, American Airlines (AA) is another good choice.
Are MIA to SEA flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally pick up a bargain, with some super cheap fares from MIA to Sea-Tac Airport cropping up a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline advertises prices that far in advance.

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