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Cheap flights from Miami to Seattle from C$ 170

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SEA
24 May — 31 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Miami to Seattle/Tacoma Intl are usually found in October or September, booked 24 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Miami to Seattle

Enter your travel dates to find the best prices.

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 24 April 2026.

Tue 5/56:30 a.m.
MIA
-
SEA
1 stop30h 19m
Frontier
Fri 15/57:50 p.m.
SEA
-
MIA
1 stop30h 48m
Frontier
Deal found 20/4C$ 343
Tue 25/84:00 p.m.
MIA
-
SEA
1 stop10h 35m
Southwest
Tue 1/98:55 a.m.
SEA
-
MIA
1 stop9h 55m
Southwest
Deal found 23/4C$ 349
Wed 27/56:05 p.m.
MIA
-
SEA
Nonstop6h 50m
Delta
Tue 9/68:05 a.m.
SEA
-
MIA
Nonstop6h 06m
Delta
Deal found 20/4C$ 352
Thu 28/57:39 a.m.
MIA
-
SEA
1 stop10h 26m
Delta
Sat 6/67:50 a.m.
SEA
-
MIA
Nonstop5h 58m
Delta
Deal found 20/4C$ 365
Fri 29/58:10 a.m.
MIA
-
SEA
1 stop11h 43m
Delta
Tue 9/67:15 a.m.
SEA
-
MIA
1 stop13h 06m
Delta
Deal found 20/4C$ 379
Thu 14/57:39 a.m.
MIA
-
SEA
1 stop12h 14m
Delta
Wed 20/55:30 a.m.
SEA
-
MIA
1 stop9h 11m
Delta
Deal found 21/4C$ 380
Fri 29/56:00 p.m.
MIA
-
SEA
Nonstop6h 49m
Alaska Airlines
Sun 31/57:55 a.m.
SEA
-
MIA
Nonstop6h 05m
Alaska Airlines
Deal found 22/4C$ 393
Sat 12/96:30 a.m.
MIA
-
SEA
2 stops17h 25m
Southwest
Tue 22/910:30 p.m.
SEA
-
MIA
1 stop9h 25m
Southwest
Deal found 23/4C$ 398
Mon 24/85:45 a.m.
MIA
-
SEA
1 stop9h 30m
Southwest
Tue 1/95:20 a.m.
SEA
-
MIA
2 stops11h 40m
Southwest
Deal found 23/4C$ 404

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 24 April 2026.

Round-trip from

C$ 343

One-way from

C$ 170

Popular in

November

Cheapest in

October

Average price

C$ 502

Good one-way deal

C$ 402 or less
Frontier
  • Frontier
  • 5/5-15/5
  • 2 total stops
  • 61h 07m total
  • Miami to Seattle
Search Deals
Frontier
  • Frontier
  • 19/5
  • 2 total stops
  • 19h 27m total
  • Miami to Seattle
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 629,999 searches. Data last updated 24 April 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

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 25/8

9:15 a.m.-6:10 p.m.

2 stops11h 55m

Seattle/Tacoma Intl

Tue 1/9

10:30 p.m.-10:55 a.m.

1 stop9h 25m

C$ 356

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 14/5

6:05 p.m.-9:55 p.m.

Nonstop6h 50m

Seattle/Tacoma Intl

Sun 17/5

5:30 a.m.-5:41 p.m.

1 stop9h 11m

C$ 365

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 14/5

6:05 p.m.-12:05 a.m.

1 stop9h 00m

Seattle/Tacoma Intl

Wed 20/5

11:45 p.m.-1:10 p.m.

2 stops10h 25m

C$ 550

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sun 23/8

5:50 a.m.-1:40 p.m.

2 stops10h 50m

Seattle/Tacoma Intl

Tue 1/9

11:05 p.m.-1:35 p.m.

2 stops11h 30m

C$ 550

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 14/5

1:00 p.m.-11:30 p.m.

2 stops13h 30m

Seattle/Tacoma Intl

Tue 19/5

6:00 a.m.-9:10 p.m.

2 stops12h 10m

C$ 599

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sat 9/5

6:05 p.m.-9:55 p.m.

Nonstop6h 50m

Seattle/Tacoma Intl

Sun 10/5

7:50 a.m.-4:50 p.m.

Nonstop6h 00m

C$ 605

MiamiSeattle

MIA - SEA

MIASEA

Miami

Mon 27/7

6:17 p.m.-10:01 p.m.

Nonstop6h 44m

Seattle/Tacoma Intl

Tue 28/7

8:00 a.m.-5:06 p.m.

Nonstop6h 06m

C$ 607
Quickest round-trip

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 25/6

6:21 p.m.-10:00 p.m.

Nonstop6h 39m

Seattle/Tacoma Intl

Mon 10/8

8:25 a.m.-5:32 p.m.

Nonstop6h 07m

C$ 625

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 19/6

8:12 a.m.-4:47 p.m.

1 stop11h 35m

Seattle/Tacoma Intl

Mon 29/6

6:00 a.m.-6:09 p.m.

1 stop9h 09m

C$ 625

MiamiSeattle

MIA - SEA

MIASEA

Miami

Tue 5/5

3:00 p.m.-11:35 p.m.

2 stops11h 35m

Seattle/Tacoma Intl

Sat 9/5

5:45 a.m.-8:20 p.m.

2 stops11h 35m

C$ 654

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/4

Showing 1-10 of 23 resultsSorted by cheapest first
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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?

The price you pay for your flight from Miami to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 23 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 365). Flying from Miami to Seattle in November is currently the most expensive (average of C$ 570). 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 24 April 2026.

When flying from Miami to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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.

  • How popular is this Miami to Seattle flight route?

    This flight path from Miami to Seattle/Tacoma Intl was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Miami to Seattle?

    Departing from Miami to Seattle will take you 6h 50m. There are 4376 km between Miami and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Before booking your flight to Seattle from Miami, check out the most reliable airlines to get you to your destination on time: Delta (74%), GOL (69%), Air Tahiti Nui( 64%).

  • What are the cheapest flights from Miami to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 273. While the most popular route (Miami - Seattle/Tacoma Intl) can be booked for C$ 595 on average, our data indicates C$ 402 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 C$ 365). Flying from Miami to Seattle in November is currently the most expensive (average of C$ 570). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Leavenworth
Mukilteo
Kent
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood
Kirkland
Tukwila

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