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Cheap flights from Miami to Seattle from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Miami to Seattle departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Frontier Logo
10:32 pm - 12:13 pmMIA-SEA
16h 41m2 stops
Frontier Logo
2:22 pm - 6:19 amSEA-MIA
12h 57m1 stop
$213Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
7:50 pm - 11:35 pmMIA-SEA
6h 45mnonstop
American Airlines Logo
8:49 pm - 5:30 amSEA-MIA
5h 41mnonstop
$217American Airlines
Find Deal
Fri, Oct 10 - Tue, Oct 14
American Airlines Logo
7:50 pm - 11:35 pmMIA-SEA
6h 45mnonstop
American Airlines Logo
8:49 pm - 5:30 amSEA-MIA
5h 41mnonstop
$218American Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 15
Alaska Airlines Logo
6:43 pm - 10:30 pmMIA-SEA
6h 47mnonstop
Alaska Airlines Logo
8:30 am - 5:29 pmSEA-MIA
5h 59mnonstop
$232Alaska Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
Delta Logo
5:00 pm - 8:50 pmMIA-SEA
6h 50mnonstop
Delta Logo
8:00 am - 5:05 pmSEA-MIA
6h 05mnonstop
$237Delta
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Wed, Dec 24 - Tue, Jan 6
United Airlines Logo
6:45 am - 4:20 pmMIA-SEA
12h 35m2 stops
United Airlines Logo
8:30 am - 7:56 pmSEA-MIA
8h 26m1 stop
$242United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Alaska Airlines Logo
4:45 pm - 10:24 pmMIA-SEA
8h 39m1 stop
Alaska Airlines Logo
7:55 am - 4:55 pmSEA-MIA
6h 00mnonstop
$251Alaska Airlines
Find Deal
Wed, Jan 7 - Sun, Jan 11
Hawaiian Airlines Logo
6:43 pm - 10:30 pmMIA-SEA
6h 47mnonstop
Hawaiian Airlines Logo
8:30 am - 5:29 pmSEA-MIA
5h 59mnonstop
$253Hawaiian Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5
Delta Logo
6:35 pm - 10:26 amMIA-SEA
18h 51m2 stops
Delta Logo
8:00 am - 5:05 pmSEA-MIA
6h 05mnonstop
$275Delta
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Mon, Dec 15 - Mon, Jan 5
United Airlines Logo
4:56 pm - 11:15 pmMIA-SEA
9h 19m1 stop
United Airlines Logo
6:35 am - 9:01 pmSEA-MIA
11h 26m2 stops
$282United Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18

Frontier flights from Miami to Seattle

Our best Frontier deals on Miami to Seattle flight tickets
Frontier
Nov 13
MIA10:32 pmMiami
16h 41m
2 stops
SEA12:13 pmSeattle/Tacoma Intl
Nov 16
SEA2:22 pmSeattle/Tacoma Intl
12h 57m
1 stop
MIA6:19 amMiami
$213
Find similar
Frontier
Oct 9
MIA6:00 amMiami
9h 07m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 15
SEA8:43 pmSeattle/Tacoma Intl
17h 50m
2 stops
MIA5:33 pmMiami
$220
Find similar
Frontier
Oct 9
MIA6:00 amMiami
9h 07m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 15
SEA8:43 pmSeattle/Tacoma Intl
17h 50m
2 stops
MIA5:33 pmMiami
$221
Find similar

American Airlines flights from Miami to Seattle

Our best American Airlines deals on Miami to Seattle flight tickets
American Airlines
Oct 10
MIA7:50 pmMiami
6h 45m
SEA11:35 pmSeattle/Tacoma Intl
Oct 14
SEA8:49 pmSeattle/Tacoma Intl
5h 41m
MIA5:30 amMiami
$217
Find similar
American Airlines
Oct 9
MIA7:50 pmMiami
6h 45m
SEA11:35 pmSeattle/Tacoma Intl
Oct 15
SEA8:49 pmSeattle/Tacoma Intl
5h 41m
MIA5:30 amMiami
$218
Find similar
American Airlines
Oct 14
MIA7:50 pmMiami
6h 45m
SEA11:35 pmSeattle/Tacoma Intl
Oct 21
SEA8:49 pmSeattle/Tacoma Intl
5h 41m
MIA5:30 amMiami
$222
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Miami to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Miami to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 11/13

10:32 pm-12:13 pm

2 stops16h 41m

Seattle/Tacoma Intl

Sun 11/16

2:22 pm-6:19 am

1 stop12h 57m

$213

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 10/10

7:50 pm-11:35 pm

Nonstop6h 45m

Seattle/Tacoma Intl

Tue 10/14

8:49 pm-5:30 am

Nonstop5h 41m

$217

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 10/9

7:50 pm-11:35 pm

Nonstop6h 45m

Seattle/Tacoma Intl

Wed 10/15

8:49 pm-5:30 am

Nonstop5h 41m

$218

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 10/9

6:43 pm-10:30 pm

Nonstop6h 47m

Seattle/Tacoma Intl

Mon 10/13

8:30 am-5:29 pm

Nonstop5h 59m

$232

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 12/24

5:00 pm-8:50 pm

Nonstop6h 50m

Seattle/Tacoma Intl

Tue 1/6

8:00 am-5:05 pm

Nonstop6h 05m

$237

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 10/14

6:45 am-4:20 pm

2 stops12h 35m

Seattle/Tacoma Intl

Tue 10/21

8:30 am-7:56 pm

1 stop8h 26m

$242

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 1/7

4:45 pm-10:24 pm

1 stop8h 39m

Seattle/Tacoma Intl

Sun 1/11

7:55 am-4:55 pm

Nonstop6h 00m

$251

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 10/4

6:43 pm-10:30 pm

Nonstop6h 47m

Seattle/Tacoma Intl

Sun 10/5

8:30 am-5:29 pm

Nonstop5h 59m

$253

MiamiSeattle

MIA - SEA

MIASEA

Miami

Mon 12/15

6:35 pm-10:26 am

2 stops18h 51m

Seattle/Tacoma Intl

Mon 1/5

8:00 am-5:05 pm

Nonstop6h 05m

$275

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 10/11

4:56 pm-11:15 pm

1 stop9h 19m

Seattle/Tacoma Intl

Sat 10/18

6:35 am-9:01 pm

2 stops11h 26m

$282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Miami to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Miami to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $298. If you don’t want to visit Seattle in January, then you should wait until February to fly from Miami, when ticket prices are also cheap, with an average price of $303.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Miami is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $340. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Miami because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $497.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Miami at noon is the least expensive time of day to depart. momondo users have found prices as low as $338 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $513. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Miami to Seattle/Tacoma Intl flight route?

Fly from Miami to Seattle/Tacoma Intl for the best Miami - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $348 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Miami for as low as $275 on momondo.

What cabin class options are available on Miami to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Miami to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Miami to Seattle flight prices changed over time?

As of September 2025, prices for Miami to Seattle flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Miami to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Miami to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Miami to Seattle (MIA to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Miami to Seattle

Best Price Found

$173

Fastest flight time

6h 21m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Miami in the past 72 hours is $173. The best round-trip flight deal from Miami to Seattle found on momondo in the last 72 hours is $281.
The fastest flight from Miami to Seattle takes 6h 21m
Direct flights go from Miami to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Miami to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 2729.6 mi away from Miami. By plane, this route typically takes 6h 44m.

  • When did momondo last update prices for flights from Miami Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Miami Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Miami Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Miami Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Miami Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Miami to Seattle?

  • What is the most popular airline from Miami to Seattle?

Best airlines flying from Miami to Seattle

Compare and see reviews for airlines that fly from Miami to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $123Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $128Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $194Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Alaska AirlinesPriceFrom $221Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Miami to Seattle

    Alaska Airlines flies from Miami to Seattle around 4 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Miami to Seattle in the last 72 hours was $221 (round-trip), much lower than the average airfare cost of $381 for Alaska Airlines flights on this route.

  • Delta Flights From Miami to Seattle

    The best Delta deal for Miami to Seattle flight tickets found on momondo in the last 72 hours was $194, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $342 round-trip. Delta operates 7 flights out of Miami into Seattle in an average week, so prices vary by time and availability. 7,954 Delta reviews by users on momondo have scored the airline at 7.9/10.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Miami to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Miami to Seattle for you.

Can I find flights from Miami to Seattle with flexible booking policies on momondo?

All flight searches from Miami to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Miami to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Miami. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Miami to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Miami to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Seattle trip

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