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$178+ Cheap flights from Miami to Seattle (MIA - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SEA
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Find cheap flights from Miami to Seattle with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Miami to Seattle/Tacoma Intl are usually found in October or January, booked 44 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Miami to Seattle

Cheapest flights from Miami to Seattle
Explore the most affordable flight options available from Miami to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
MIA
-
SEA
1 stop10h 22m
Frontier
Fri 9/114:27 pm
SEA
-
MIA
1 stop29h 19m
Frontier
Deal found 7/25$319
This Frontier deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:15 pm
MIA
-
SEA
1 stop15h 24m
Frontier
Tue 8/117:06 pm
SEA
-
MIA
1 stop7h 45m
Frontier
Deal found 7/21$320
This Trip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
MIA
-
SEA
1 stop30h 19m
Frontier
Tue 9/12:37 pm
SEA
-
MIA
1 stop11h 15m
Frontier
Deal found 7/25$321
This Trip.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:16 pm
MIA
-
SEA
Nonstop6h 38m
Multiple Airlines
Tue 9/297:00 am
SEA
-
MIA
1 stop19h 48m
Multiple Airlines
Deal found 7/22$322
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:15 pm
MIA
-
SEA
1 stop15h 49m
Frontier
Tue 8/252:37 pm
SEA
-
MIA
2 stops22h 44m
Frontier
Deal found 7/22$323
This CheapTickets deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:16 pm
MIA
-
SEA
Nonstop6h 38m
Alaska Airlines
Wed 9/308:00 am
SEA
-
MIA
Nonstop6h 13m
Alaska Airlines
Deal found 7/24$324
This Expedia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
MIA
-
SEA
1 stop10h 22m
Multiple Airlines
Sun 9/68:13 am
SEA
-
MIA
Nonstop6h 06m
Multiple Airlines
Deal found 7/25$325
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/810:15 pm
MIA
-
SEA
1 stop15h 49m
Frontier
Wed 8/197:06 pm
SEA
-
MIA
2 stops18h 15m
Frontier
Deal found 7/20$326
This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:25 pm
MIA
-
SEA
Nonstop6h 40m
Delta
Sun 9/137:59 am
SEA
-
MIA
Nonstop6h 08m
Delta
Deal found 7/21$327
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:30 am
MIA
-
SEA
2 stops27h 34m
Frontier
Thu 8/137:06 pm
SEA
-
MIA
1 stop7h 45m
Frontier
Deal found 7/20$328
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
MIA
-
SEA
1 stop9h 20m
Frontier
Mon 8/317:06 pm
SEA
-
MIA
2 stops15h 26m
Frontier
Deal found 7/25$329
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:15 pm
MIA
-
SEA
1 stop15h 49m
Frontier
Tue 8/117:06 pm
SEA
-
MIA
1 stop7h 45m
Frontier
Deal found 7/22$330

Find flight deals from Miami to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(CheapOair)

One-way from

$178
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$462

Good round-trip deal

$389 or less

Good one-way deal

$258 or less
Provider with most accurate pricing for Miami-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Seattle/Tacoma Intl flights.
Search Deals
From Miami to Seattle/Tacoma Intl
Search Deals
One-way flight from Miami to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Miami to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Miami to Seattle/Tacoma Intl.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2026.
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

Cheapest round-trip
Quickest round-trip

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 9/29

6:16 pm-9:54 pm

Nonstop6h 38m

Seattle/Tacoma Intl

Thu 10/8

8:08 am-5:15 pm

Nonstop6h 07m

$347

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 12/10

12:00 pm-6:25 pm

1 stop9h 25m

Seattle/Tacoma Intl

Mon 12/14

6:35 am-10:10 pm

2 stops12h 35m

$366

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 10/6

11:30 am-7:05 pm

2 stops10h 35m

Seattle/Tacoma Intl

Tue 10/13

12:10 am-5:30 pm

2 stops14h 20m

$377

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 9/10

12:05 pm-9:45 pm

1 stop12h 40m

Seattle/Tacoma Intl

Fri 9/25

11:25 am-10:00 pm

1 stop7h 35m

$412

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 8/20

12:05 pm-9:45 pm

1 stop12h 40m

Seattle/Tacoma Intl

Fri 8/28

11:05 pm-1:35 pm

2 stops11h 30m

$438

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 9/22

2:45 pm-8:36 pm

1 stop8h 51m

Seattle/Tacoma Intl

Wed 9/30

7:59 am-5:07 pm

Nonstop6h 08m

$454

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 8/28

3:20 pm-10:55 pm

2 stops10h 35m

Seattle/Tacoma Intl

Fri 9/4

11:05 pm-1:35 pm

2 stops11h 30m

$457

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 9/2

11:30 am-9:58 pm

2 stops13h 28m

Seattle/Tacoma Intl

Tue 9/15

5:00 am-3:52 pm

1 stop7h 52m

$462

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 8/26

11:30 am-7:08 pm

1 stop10h 38m

Seattle/Tacoma Intl

Wed 9/2

6:30 am-10:34 pm

2 stops13h 04m

$462

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 8/27

11:30 am-9:41 pm

2 stops13h 11m

Seattle/Tacoma Intl

Fri 9/11

7:00 am-7:26 pm

1 stop9h 26m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Miami to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Miami to Seattle in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Miami-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Miami-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Miami-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Miami-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Miami-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Miami to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Miami with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Miami to Seattle

How far ahead should I book a flight from Miami to Seattle?

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Miami to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Miami to Seattle?

Currently, October is the cheapest month in which you can book a flight from Miami to Seattle (average of $327). Flying from Miami to Seattle in June is currently the most expensive (average of $507). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MIA to SEA?

Find hourly flight availability from Miami to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Miami to Seattle as you normally would.

How much does it cost to fly round-trip from Miami to Seattle?

Airfare is below average for this route at the moment.

Miami to Seattle flights typically cost between $370 and $532 in August.
The cheapest round-trip price found within the last 5 days was $319 on Frontier (Aug 27-Sep 11).

The best insider tips for Miami to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Miami to Seattle trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MIA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated July 25, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Miami to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,718 reviews
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Delta
7.8
Good
8,494 reviews
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Hawaiian Airlines
7.8
Good
2,821 reviews
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
American Airlines
7.1
Good
11,850 reviews
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Frontier
5.6
Fair
2,770 reviews
Alaska Airlines
7.9
Good
12,718 reviews

Food

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from Miami to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Miami to Seattle?

    To fly from Miami to Seattle, you need to book a flight from Miami (MIA) to Seattle/Tacoma Intl (SEA). Nonstop flights to Seattle/Tacoma Intl from Miami take 6h 32m on average. When it comes time to book airfare, you have a few options: there are 6 outbound flights from Miami to Seattle/Tacoma Intl offered by 8 different airlines.

  • How popular is this Miami to Seattle flight route?

    Within the past month, 28 users have taken a look at flights from Miami to Seattle/Tacoma Intl.

  • How long is the flight from Miami to Seattle?

    Airlines like Alaska Airlines and Southwest fly from Miami to Seattle in about 6h 38m. The time it takes to get you to your destination can typically vary by up to 2h 47m. The distance from Miami to Seattle is about 2719 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Miami to Seattle round-trip?

    According to our current data, Southwest ($152), Frontier ($167), and Delta ($196) offers the cheapest pricing from Miami to Seattle. Southwest is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Miami to Seattle one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $118 and $129 on United Airlines and Delta, respectively.

  • What are the most reliable airlines from Miami to Seattle?

    Consider Royal Air Maroc (100%), Alaska Airlines (83%) or LATAM Airlines (83%) when booking your flight. These represent the most reliable airlines when flying from Miami to Seattle.

  • What are the cheapest flights from Miami to Seattle?

    Looking at all options, your cheapest flight can be booked for $189. While the most popular route (Miami - Seattle/Tacoma Intl) can be booked for $313 on average, our data indicates $507 when flying from Miami to Seattle.

  • Can I find deals for flights from Miami to Seattle that include hotel bookings?

    Yes. In addition to deals on Miami to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Miami to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Miami to Seattle.

  • Can I find deals for business class flights from Miami to Seattle?

    Yes. Cheapflights offers flight deals from Miami to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Miami to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Miami to Seattle (average of $327). Flying from Miami to Seattle in June is currently the most expensive (average of $507). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Miami to Seattle

Discover the top 7 airlines that operate flights from Miami to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$138Average$377FlexibilityNo cancel feeOn-time85%
FrontierCheapest$167Average$337FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$379FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$214Average$386FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$246Average$410FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$256Average$390FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$291Average$486FlexibilityNo cancel feeOn-time71%

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