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Cheap flights from Miami to Seattle from C$ 252

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SEA
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Miami to Seattle/Tacoma Intl are usually found in October or January, booked 84 days in advance, depart on a Tuesday or Monday and return on a Saturday

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 23 July 2026.

Sat 5/96:25 p.m.
MIA
-
SEA
Nonstop6h 40m
Delta
Thu 10/97:59 a.m.
SEA
-
MIA
Nonstop6h 08m
Delta
Deal found 21/7C$ 461
Fri 2/106:16 p.m.
MIA
-
SEA
Nonstop6h 38m
Alaska Airlines
Mon 5/108:08 a.m.
SEA
-
MIA
Nonstop6h 07m
Alaska Airlines
Deal found 22/7C$ 468
Sun 27/96:19 p.m.
MIA
-
SEA
Nonstop6h 36m
Delta
Sun 4/107:59 a.m.
SEA
-
MIA
Nonstop6h 08m
Delta
Deal found 23/7C$ 475
Sun 13/96:16 p.m.
MIA
-
SEA
Nonstop6h 38m
Alaska Airlines
Mon 21/98:00 a.m.
SEA
-
MIA
Nonstop6h 13m
Alaska Airlines
Deal found 22/7C$ 479
Mon 21/97:00 a.m.
MIA
-
SEA
2 stops10h 55m
Southwest
Wed 23/911:05 p.m.
SEA
-
MIA
1 stop10h 05m
Southwest
Deal found 21/7C$ 482
Sun 16/86:00 a.m.
MIA
-
SEA
1 stop30h 04m
Multiple Airlines
Sun 23/88:13 a.m.
SEA
-
MIA
Nonstop6h 06m
Multiple Airlines
Deal found 20/7C$ 483
Tue 18/86:25 p.m.
MIA
-
SEA
Nonstop6h 40m
Delta
Sun 23/88:05 a.m.
SEA
-
MIA
Nonstop6h 06m
Delta
Deal found 19/7C$ 485
Tue 1/92:20 p.m.
MIA
-
SEA
2 stops11h 45m
Southwest
Wed 30/95:20 a.m.
SEA
-
MIA
2 stops11h 50m
Southwest
Deal found 19/7C$ 489
Tue 8/94:00 p.m.
MIA
-
SEA
1 stop10h 35m
Southwest
Tue 15/98:55 a.m.
SEA
-
MIA
1 stop9h 55m
Southwest
Deal found 21/7C$ 492
Thu 27/83:52 p.m.
MIA
-
SEA
1 stop10h 12m
United Airlines
Sun 6/97:00 a.m.
SEA
-
MIA
1 stop9h 26m
United Airlines
Deal found 19/7C$ 496
Sat 12/912:30 p.m.
MIA
-
SEA
2 stops12h 00m
Southwest
Sat 19/95:40 p.m.
SEA
-
MIA
2 stops14h 50m
Southwest
Deal found 20/7C$ 497
Fri 2/103:57 p.m.
MIA
-
SEA
1 stop10h 02m
United Airlines
Sat 10/1011:13 p.m.
SEA
-
MIA
1 stop9h 42m
United Airlines
Deal found 23/7C$ 499

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 23 July 2026.

Round-trip from

C$ 461

One-way from

C$ 252

Popular in

June

Cheapest in

October

Average price

C$ 650
Delta
  • Delta
  • 5/9-10/9
  • Nonstop
  • 12h 48m total
  • Miami to Seattle
Search Deals
Southwest
  • Southwest
  • 1/9
  • 2 total stops
  • 13h 15m total
  • Miami to Seattle
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 23 July 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

Wed 9/9

6:19 p.m.-9:55 p.m.

Nonstop6h 36m

Seattle/Tacoma Intl

Thu 17/9

7:59 a.m.-5:07 p.m.

Nonstop6h 08m

C$ 461
Quickest round-trip

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 30/9

6:19 p.m.-9:55 p.m.

Nonstop6h 36m

Seattle/Tacoma Intl

Thu 8/10

8:00 a.m.-4:58 p.m.

Nonstop5h 58m

C$ 482

MiamiSeattle

MIA - SEA

MIASEA

Miami

Mon 5/10

6:19 p.m.-9:55 p.m.

Nonstop6h 36m

Seattle/Tacoma Intl

Sun 11/10

8:00 a.m.-4:58 p.m.

Nonstop5h 58m

C$ 489

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 23/10

6:10 p.m.-9:55 p.m.

Nonstop6h 45m

Seattle/Tacoma Intl

Wed 11/11

8:25 a.m.-5:27 p.m.

Nonstop6h 02m

C$ 503

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 14/8

6:20 p.m.-10:00 p.m.

Nonstop6h 40m

Seattle/Tacoma Intl

Thu 27/8

8:13 a.m.-5:19 p.m.

Nonstop6h 06m

C$ 510

MiamiSeattle

MIA - SEA

MIASEA

Miami

Sun 16/8

6:25 p.m.-10:05 p.m.

Nonstop6h 40m

Seattle/Tacoma Intl

Sun 23/8

8:05 a.m.-5:11 p.m.

Nonstop6h 06m

C$ 510

MiamiSeattle

MIA - SEA

MIASEA

Miami

Wed 16/12

6:05 p.m.-9:58 p.m.

Nonstop6h 53m

Seattle/Tacoma Intl

Tue 29/12

8:25 a.m.-5:27 p.m.

Nonstop6h 02m

C$ 523

MiamiSeattle

MIA - SEA

MIASEA

Miami

Fri 21/8

4:58 p.m.-11:26 p.m.

1 stop9h 28m

Seattle/Tacoma Intl

Sun 23/8

11:00 p.m.-11:54 a.m.

1 stop9h 54m

C$ 574

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 13/8

6:20 p.m.-10:00 p.m.

Nonstop6h 40m

Seattle/Tacoma Intl

Mon 17/8

8:12 a.m.-5:17 p.m.

Nonstop6h 05m

C$ 574

MiamiSeattle

MIA - SEA

MIASEA

Miami

Thu 13/8

6:25 p.m.-10:05 p.m.

Nonstop6h 40m

Seattle/Tacoma Intl

Sat 15/8

8:05 a.m.-5:11 p.m.

Nonstop6h 06m

C$ 588

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/7

Showing 1-10 of 24 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 90 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$ 461). Flying from Miami to Seattle in June is currently the most expensive (average of C$ 715). 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 23 July 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 36m. 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: Royal Air Maroc (100%), Alaska Airlines (83%), LATAM Airlines( 83%).

  • 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$ 461). Flying from Miami to Seattle in June is currently the most expensive (average of C$ 715). 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
Kent
Leavenworth
Mukilteo
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Olympia
Marysville
Federal Way
Kirkland

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