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Cheap flights from Miami to Seattle from $128

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 1/8. 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

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Alaska Airlines Logo
7:25 am - 11:22 amMIA-SEA
6h 57mnonstop
Alaska Airlines Logo
8:16 am - 5:11 pmSEA-MIA
5h 55mnonstop
$199Alaska Airlines
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Thu, Dec 25 - Wed, Dec 31
Frontier Logo
6:00 am - 11:53 amMIA-SEA
8h 53m1 stop
Frontier Logo
3:40 pm - 5:19 amSEA-MIA
10h 39m1 stop
$206Frontier
Find Deal
Sat, Dec 6 - Mon, Dec 8
Delta Logo
6:00 pm - 9:58 pmMIA-SEA
6h 58mnonstop
Delta Logo
11:15 pm - 11:03 amSEA-MIA
8h 48m1 stop
$209Delta
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Sat, Dec 6 - Mon, Dec 15
Frontier Logo
6:00 am - 11:53 amMIA-SEA
8h 53m1 stop
Frontier Logo
12:48 pm - 5:19 amSEA-MIA
13h 31m1 stop
$214Frontier
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Sat, Dec 6 - Sat, Dec 13
Alaska Airlines Logo
4:39 pm - 10:33 pmMIA-SEA
8h 54m1 stop
Alaska Airlines Logo
9:45 pm - 3:39 pmSEA-MIA
14h 54m1 stop
$218Alaska Airlines
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Fri, Jan 23 - Mon, Jan 26
Delta Logo
8:10 am - 2:45 pmMIA-SEA
9h 35m1 stop
Delta Logo
9:59 pm - 10:33 amSEA-MIA
9h 34m1 stop
$219Delta
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Sat, Dec 6 - Mon, Dec 15
Frontier Logo
6:25 am - 12:14 pmMIA-SEA
8h 49m1 stop
Frontier Logo
3:40 pm - 5:19 amSEA-MIA
10h 39m1 stop
$222Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8
Alaska Airlines Logo
5:59 pm - 10:04 pmMIA-SEA
7h 05mnonstop
Alaska Airlines Logo
8:08 am - 4:59 pmSEA-MIA
5h 51mnonstop
$223Alaska Airlines
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Wed, Mar 11 - Tue, Mar 17
Southwest Logo
2:00 pm - 10:30 pmMIA-SEA
11h 30m1 stop
Southwest Logo
6:05 am - 6:35 pmSEA-MIA
9h 30m2 stops
$224Southwest
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Thu, Jan 8 - Tue, Jan 20
Frontier Logo
7:05 am - 10:11 amMIA-SEA
30h 06m1 stop
Frontier Logo
6:33 pm - 5:35 amSEA-MIA
32h 02m1 stop
$226Frontier
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Sat, Dec 20 - Tue, Dec 30

Delta flights from Miami to Seattle

Our best Delta deals on Miami to Seattle flight tickets
Delta
Dec 6
MIA6:00 pmMiami
6h 58m
SEA9:58 pmSeattle/Tacoma Intl
Dec 8
SEA11:59 pmSeattle/Tacoma Intl
10h 33m
1 stop
MIA1:32 pmMiami
$209
Find similar
Delta
Jan 24
MIA5:50 amMiami
11h 28m
1 stop
SEA2:18 pmSeattle/Tacoma Intl
Jan 29
SEA5:40 pmSeattle/Tacoma Intl
9h 55m
1 stop
MIA6:35 amMiami
$219
Find similar
Delta
Mar 11
MIA11:35 amMiami
13h 41m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
Mar 17
SEA8:00 amSeattle/Tacoma Intl
6h 05m
MIA5:05 pmMiami
$233
Find similar

Frontier flights from Miami to Seattle

Our best Frontier deals on Miami to Seattle flight tickets
Frontier
Dec 6
MIA6:00 amMiami
8h 53m
1 stop
SEA11:53 amSeattle/Tacoma Intl
Dec 8
SEA3:40 pmSeattle/Tacoma Intl
10h 39m
1 stop
MIA5:19 amMiami
$206
Find similar
Frontier
Dec 6
MIA6:00 amMiami
8h 53m
1 stop
SEA11:53 amSeattle/Tacoma Intl
Dec 13
SEA12:48 pmSeattle/Tacoma Intl
13h 31m
1 stop
MIA5:19 amMiami
$214
Find similar
Frontier
Dec 4
MIA6:25 amMiami
8h 49m
1 stop
SEA12:14 pmSeattle/Tacoma Intl
Dec 8
SEA3:40 pmSeattle/Tacoma Intl
10h 39m
1 stop
MIA5:19 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 November 17, 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 12/25

7:25 am-11:22 am

Nonstop6h 57m

Seattle/Tacoma Intl

Wed 12/31

8:16 am-5:11 pm

Nonstop5h 55m

$199

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 12/6

6:00 am-11:53 am

1 stop8h 53m

Seattle/Tacoma Intl

Mon 12/8

3:40 pm-5:19 am

1 stop10h 39m

$206

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 12/6

6:00 pm-9:58 pm

Nonstop6h 58m

Seattle/Tacoma Intl

Mon 12/15

11:15 pm-11:03 am

1 stop8h 48m

$209

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 12/6

6:00 am-11:53 am

1 stop8h 53m

Seattle/Tacoma Intl

Sat 12/13

12:48 pm-5:19 am

1 stop13h 31m

$214

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 1/23

4:39 pm-10:33 pm

1 stop8h 54m

Seattle/Tacoma Intl

Mon 1/26

9:45 pm-3:39 pm

1 stop14h 54m

$218

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 12/6

8:10 am-2:45 pm

1 stop9h 35m

Seattle/Tacoma Intl

Mon 12/15

9:59 pm-10:33 am

1 stop9h 34m

$219

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 12/4

6:25 am-12:14 pm

1 stop8h 49m

Seattle/Tacoma Intl

Mon 12/8

3:40 pm-5:19 am

1 stop10h 39m

$222

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 3/11

5:59 pm-10:04 pm

Nonstop7h 05m

Seattle/Tacoma Intl

Tue 3/17

8:08 am-4:59 pm

Nonstop5h 51m

$223

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 1/8

2:00 pm-10:30 pm

1 stop11h 30m

Seattle/Tacoma Intl

Tue 1/20

6:05 am-6:35 pm

2 stops9h 30m

$224

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 12/20

7:05 am-10:11 am

1 stop30h 06m

Seattle/Tacoma Intl

Tue 12/30

6:33 pm-5:35 am

1 stop32h 02m

$226

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, October 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 $285. If you don’t want to visit Seattle in October, then you should wait until February to fly from Miami, when ticket prices are also cheap, with an average price of $292.

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 $332. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $496.

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 $451. 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 $343 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 $278 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.

Can stopping save me money on Miami to Seattle flights?

No. A direct flight is the cheapest option for a flight between Miami to Seattle.

How have Miami to Seattle flight prices changed over time?

As of November 2025, prices for Miami to Seattle flights are approximately 14% more expensive 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

$228

Fastest flight time

6h 35m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Miami in the past 72 hours is $228. The best round-trip flight deal from Miami to Seattle found on momondo in the last 72 hours is $317.
The fastest flight from Miami to Seattle takes 6h 35m
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 53m.

  • 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
3,104 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $138Free CancellationRating
7.8
2,809 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Alaska AirlinesPriceFrom $220Free CancellationRating
8.0
11,310 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $257Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
United AirlinesPriceFrom $262Free CancellationRating
7.4
9,014 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Miami to Seattle

    Alaska Airlines flies from Miami to Seattle around 1 time per week, with 11,310 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Miami to Seattle in the last 72 hours was $220 (round-trip), much lower than the average airfare cost of $370 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 $196, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $340 round-trip. Delta operates 7 flights out of Miami into Seattle in an average week, so prices vary by time and availability. 8,006 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
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Lakewood
Federal Way
Fife
Cle Elum
Centralia
Kirkland
Westport
Shoreline

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.

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