How many flights depart from Seattle to Florida Keys on average per week?

As of September 2026, there are 15 flights per week flying from Seattle to Florida Keys. The most common day of the week flights depart is Wed, with 20% of flights taking off on this day.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Florida Keys?

Alaska Airlines, Southwest, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Florida Keys

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

Prices for flights from Seattle/Tacoma Intl Airport to Florida Keys were last updated today.

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

There are 8 operators available for flights from Seattle/Tacoma Intl Airport to Florida Keys as of September 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Florida Keys?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$184 Cheap Flights from Seattle to Florida Keys in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:27 pm - 12:44 amSEA Seattle/Tacoma Intl-MIA Miami

29h 17m1 stop Denver Intl

5:50 am - 3:12 pmMIA Miami-SEA Seattle/Tacoma Intl

12h 22m1 stop Denver Intl

$317Frontier

Fri, Oct 30 - Mon, Nov 2

4:27 pm - 12:46 amSEA Seattle/Tacoma Intl-MIA Miami

29h 19m1 stop Denver Intl

5:55 am - 3:08 pmMIA Miami-SEA Seattle/Tacoma Intl

12h 13m1 stop Denver Intl

$318Frontier

Wed, Sep 30 - Sat, Oct 3

8:05 am - 5:03 pmSEA Seattle/Tacoma Intl-MIA Miami

5h 58mnonstop

6:15 pm - 10:00 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 45mnonstop

$322Delta

Wed, Oct 14 - Mon, Oct 19

8:05 am - 5:03 pmSEA Seattle/Tacoma Intl-MIA Miami

5h 58mnonstop

6:15 pm - 10:00 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 45mnonstop

$322Delta

Thu, Oct 22 - Thu, Oct 29

8:59 pm - 5:40 amSEA Seattle/Tacoma Intl-MIA Miami

5h 41mnonstop

8:58 pm - 12:54 amMIA Miami-SEA Seattle/Tacoma Intl

6h 56mnonstop

$322American Airlines

Sat, Jan 30 - Sun, Feb 7

8:59 pm - 5:40 amSEA Seattle/Tacoma Intl-MIA Miami

5h 41mnonstop

8:58 pm - 12:54 amMIA Miami-SEA Seattle/Tacoma Intl

6h 56mnonstop

$322American Airlines

Sat, Jan 23 - Fri, Jan 29

8:09 am - 10:16 pmSEA Seattle/Tacoma Intl-MIA Miami

11h 07m1 stop Washington, D.C. Dulles Intl

12:55 pm - 7:17 pmMIA Miami-SEA Seattle/Tacoma Intl

9h 22m1 stop Houston George Bush Intcntl

$322United Airlines

Thu, Nov 26 - Fri, Dec 4

6:30 am - 10:10 pmSEA Seattle/Tacoma Intl-MIA Miami

12h 40m2 stops Chicago Midway Orlando

9:25 am - 5:50 pmMIA Miami-SEA Seattle/Tacoma Intl

11h 25m2 stops Dallas Love Field Denver Intl

$322Southwest

Wed, Dec 9 - Tue, Dec 15

9:30 am - 10:10 pmSEA Seattle/Tacoma Intl-MIA Miami

9h 40m2 stops Denver Intl Orlando

6:20 am - 4:05 pmMIA Miami-SEA Seattle/Tacoma Intl

12h 45m2 stops Dallas Love Field Denver Intl

$322Southwest

Wed, Nov 4 - Sat, Nov 14

11:13 pm - 11:55 amSEA Seattle/Tacoma Intl-MIA Miami

9h 42m1 stop Chicago O'Hare Intl

5:00 pm - 10:45 pmMIA Miami-SEA Seattle/Tacoma Intl

8h 45m1 stop Houston George Bush Intcntl

$327United Airlines

Sat, Oct 17 - Mon, Oct 19

Cheap last minute flights

Enter your travel dates to find the best prices.

4:27 pm - 12:46 amSEA Seattle/Tacoma Intl-MIA Miami

29h 19m1 stop Denver Intl

5:50 am - 3:08 pmMIA Miami-SEA Seattle/Tacoma Intl

12h 18m1 stop Denver Intl

$362Frontier

Tue, Sep 15 - Tue, Sep 22

4:27 pm - 12:46 amSEA Seattle/Tacoma Intl-MIA Miami

29h 19m1 stop Denver Intl

5:50 am - 3:08 pmMIA Miami-SEA Seattle/Tacoma Intl

12h 18m1 stop Denver Intl

$362Frontier

Tue, Sep 15 - Tue, Sep 29

4:27 pm - 12:46 amSEA Seattle/Tacoma Intl-MIA Miami

29h 19m1 stop Denver Intl

6:18 pm - 9:59 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 41mnonstop

$464Multiple Airlines

Fri, Sep 11 - Mon, Oct 12

4:27 pm - 12:46 amSEA Seattle/Tacoma Intl-MIA Miami

29h 19m1 stop Denver Intl

6:16 pm - 9:54 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 38mnonstop

$467Multiple Airlines

Mon, Sep 14 - Mon, Sep 28

8:50 pm - 5:40 amSEA Seattle/Tacoma Intl-MIA Miami

5h 50mnonstop

8:17 pm - 11:52 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 35mnonstop

$468American Airlines

Sat, Sep 12 - Mon, Sep 28

5:02 pm - 5:07 amSEA Seattle/Tacoma Intl-MIA Miami

9h 05m1 stop Los Angeles Los Angeles

8:17 pm - 11:52 pmMIA Miami-SEA Seattle/Tacoma Intl

6h 35mnonstop

$478American Airlines

Sat, Sep 12 - Mon, Sep 28

6:32 am - 10:34 pmSEA Seattle/Tacoma Intl-MIA Miami

13h 02m2 stops Los Angeles Los Angeles Houston George Bush Intcntl

1:44 pm - 8:27 pmMIA Miami-SEA Seattle/Tacoma Intl

9h 43m1 stop Washington, D.C. Dulles Intl

$526United Airlines

Sat, Sep 12 - Wed, Sep 16

11:00 pm - 11:50 amSEA Seattle/Tacoma Intl-MIA Miami

9h 50m1 stop Nashville Intl

9:15 am - 6:10 pmMIA Miami-SEA Seattle/Tacoma Intl

11h 55m2 stops Nashville Intl Denver Intl

$526Southwest

Wed, Sep 16 - Wed, Sep 23

5:20 am - 8:05 pmSEA Seattle/Tacoma Intl-MIA Miami

11h 45m2 stops Chicago Midway Orlando

12:50 pm - 11:10 pmMIA Miami-SEA Seattle/Tacoma Intl

13h 20m2 stops Lambert-St Louis Denver Intl

$531Southwest

Tue, Sep 15 - Tue, Sep 22

8:40 am - 11:52 pmSEA Seattle/Tacoma Intl-MIA Miami

12h 12m2 stops Denver Intl Newark

4:01 pm - 2:22 pmMIA Miami-SEA Seattle/Tacoma Intl

25h 21m2 stops Chicago O'Hare Intl San Francisco

$684United Airlines

Tue, Sep 15 - Fri, Sep 25

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Southwest flights from Seattle to Florida Keys

Our best Southwest deals on Seattle to Florida Keys flight tickets

Southwest

Dec 2

SEA6:10 amSeattle/Tacoma Intl

10h 55m

2 stops

MIA8:05 pmMiami

Dec 9

MIA9:25 amMiami

11h 25m

2 stops

SEA5:50 pmSeattle/Tacoma Intl

$322

Southwest

Oct 5

SEA12:10 amSeattle/Tacoma Intl

12h 35m

1 stop

MIA3:45 pmMiami

Oct 14

MIA11:30 amMiami

10h 35m

2 stops

SEA7:05 pmSeattle/Tacoma Intl

$323

Southwest

Nov 23

SEA5:15 amSeattle/Tacoma Intl

15h 30m

2 stops

MIA11:45 pmMiami

Dec 3

MIA12:00 pmMiami

9h 35m

1 stop

SEA6:35 pmSeattle/Tacoma Intl

$343

Delta flights from Seattle to Florida Keys

Our best Delta deals on Seattle to Florida Keys flight tickets

Delta

Oct 10

SEA7:32 amSeattle/Tacoma Intl

14h 21m

2 stops

MIA12:53 amMiami

Oct 13

MIA6:15 pmMiami

6h 45m

SEA10:00 pmSeattle/Tacoma Intl

$330

Delta

Dec 1

SEA8:10 amSeattle/Tacoma Intl

5h 52m

MIA5:02 pmMiami

Dec 15

MIA6:12 pmMiami

6h 53m

SEA10:05 pmSeattle/Tacoma Intl

$332

Delta

Oct 6

SEA7:32 amSeattle/Tacoma Intl

14h 21m

2 stops

MIA12:53 amMiami

Oct 10

MIA7:16 amMiami

11h 05m

1 stop

SEA3:21 pmSeattle/Tacoma Intl

$335

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Fri 10/30

4:27 pm-12:44 am

1 stop29h 17m

Miami

Mon 11/2

5:50 am-3:12 pm

1 stop12h 22m

$317

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Wed 9/30

4:27 pm-12:46 am

1 stop29h 19m

Miami

Sat 10/3

5:55 am-3:08 pm

1 stop12h 13m

$318

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Wed 10/14

8:05 am-5:03 pm

Nonstop5h 58m

Miami

Mon 10/19

6:15 pm-10:00 pm

Nonstop6h 45m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Thu 10/22

8:05 am-5:03 pm

Nonstop5h 58m

Miami

Thu 10/29

6:15 pm-10:00 pm

Nonstop6h 45m

$322

Quickest round-trip

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Sat 1/30

8:59 pm-5:40 am

Nonstop5h 41m

Miami

Sun 2/7

8:58 pm-12:54 am

Nonstop6h 56m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Sat 1/23

8:59 pm-5:40 am

Nonstop5h 41m

Miami

Fri 1/29

8:58 pm-12:54 am

Nonstop6h 56m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Thu 11/26

8:09 am-10:16 pm

1 stop11h 07m

Miami

Fri 12/4

12:55 pm-7:17 pm

1 stop9h 22m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Wed 12/9

6:30 am-10:10 pm

2 stops12h 40m

Miami

Tue 12/15

9:25 am-5:50 pm

2 stops11h 25m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Wed 11/4

9:30 am-10:10 pm

2 stops9h 40m

Miami

Sat 11/14

6:20 am-4:05 pm

2 stops12h 45m

$322

SeattleMiami

SEA Seattle/Tacoma Intl - MIA Miami

SEAMIA

Seattle/Tacoma Intl

Sat 10/17

11:13 pm-11:55 am

1 stop9h 42m

Miami

Mon 10/19

5:00 pm-10:45 pm

1 stop8h 45m

$327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Florida Keys

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

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The month of February is another great option to travel to Florida Keys, with average flight prices from Seattle averaging around $387.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Seattle to Florida Keys is on a Tuesday when prices can be found for as low as $568. The most expensive day to fly to Florida Keys is Friday, with ticket prices averaging around $648.

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

According to our data, the cheapest time of day to fly to Florida Keys is in the morning. momondo users have found flights departing from Seattle to Florida Keys in the morning for as low as $456. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $714.

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

You are more likely to see cheaper flights to Florida Keys from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Seattle for as low as $336 on momondo.

Can stopping save me money on Seattle to Florida Keys flights?

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

Cheap Seattle to Florida Keys flight deals and tips

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

Best Price Found	$184
Fastest flight time	5h 41m
Direct flights	Every day
Airports in Florida Keys	3 airports

The best one-way flight to Florida Keys from Seattle in the past 72 hours is $184. The best round-trip flight deal from Seattle to Florida Keys found on momondo in the last 72 hours is $317.

The fastest flight from Seattle to Florida Keys takes 5h 41m

Direct flights go from Seattle to Florida Keys every day.

There are 3 airports in Florida Keys. From Seattle there are direct flights to Miami (MIA).

Search flight deals

Frequently asked questions about flying from Seattle to Florida Keys

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Florida Keys?
Prices for flights from Seattle/Tacoma Intl Airport to Florida Keys were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Florida Keys?
There are 8 operators available for flights from Seattle/Tacoma Intl Airport to Florida Keys as of September 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Florida Keys?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Florida Keys?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Florida Keys is Boeing 737-800 Passenger/BBJ2 (winglets) (17.62% of total bookings). The next most popular plane models are Airbus A321neo (15.22%), Boeing 737 MAX 8 (9.42%), and Boeing 737-900 (8.64%).

Best airlines flying from Seattle to Florida Keys

Compare and see reviews for airlines that fly from Seattle to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $348	Free Cancellation	Rating 7.1 12,045 reviews		Search American Airlines flights
Delta	PriceFrom $588	Free Cancellation	Rating 7.8 8,554 reviews		Search Delta flights

Why use momondo?

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

Finding the right flight to Florida Keys from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Florida Keys quick and easy, saving you time and money.

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

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

How can momondo help me find flights from Seattle to Florida Keys?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Florida Keys.

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

Yes. momondo can track prices for Seattle to Florida Keys flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.