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Cheap flights from Seattle to Florida Keys from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Florida Keys departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Florida Keys

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:35 am - 4:27 pm
SEA
-
MIA
5h 52mnonstop
Delta Logo
8:15 am - 2:18 pm
MIA
-
SEA
9h 03m1 stop
$209Delta
lun., ene. 5 - mar., ene. 13
Frontier Logo
12:26 pm - 2:11 pm
SEA
-
MIA
22h 45m1 stop
Frontier Logo
10:07 am - 11:09 am
MIA
-
SEA
28h 02m1 stop
$210Frontier
vie., ene. 9 - mié., ene. 14
Frontier Logo
12:26 pm - 11:57 am
SEA
-
MIA
20h 31m1 stop
Frontier Logo
10:07 am - 11:09 am
MIA
-
SEA
28h 02m1 stop
$211Frontier
jue., ene. 8 - mié., ene. 14
Frontier Logo
7:13 pm - 10:48 am
SEA
-
MIA
12h 35m2 stops
Frontier Logo
10:07 am - 11:09 am
MIA
-
SEA
28h 02m1 stop
$212Frontier
mar., ene. 6 - mié., ene. 14
Multiple Airlines Logo
2:54 pm - 5:00 am
SEA
-
MIA
11h 06m1 stop
Multiple Airlines Logo
4:39 pm - 10:33 pm
MIA
-
SEA
8h 54m1 stop
$213Multiple Airlines
lun., ene. 5 - mar., ene. 13
Multiple Airlines Logo
12:26 pm - 11:57 am
SEA
-
MIA
20h 31m1 stop
Multiple Airlines Logo
7:00 am - 7:47 pm
MIA
-
SEA
15h 47m2 stops
$214Multiple Airlines
jue., ene. 8 - lun., ene. 12
Hawaiian Airlines Logo
8:16 am - 5:11 pm
SEA
-
MIA
5h 55mnonstop
Hawaiian Airlines Logo
4:39 pm - 10:33 pm
MIA
-
SEA
8h 54m1 stop
$215Hawaiian Airlines
lun., ene. 5 - mar., ene. 13
Alaska Airlines Logo
5:00 pm - 3:39 pm
SEA
-
MIA
19h 39m1 stop
Alaska Airlines Logo
4:39 pm - 10:33 pm
MIA
-
SEA
8h 54m1 stop
$218Alaska Airlines
sáb., ene. 31 - mar., feb. 3
American Airlines Logo
7:00 am - 6:01 pm
SEA
-
EYW
8h 01m1 stop
American Airlines Logo
1:22 pm - 8:45 pm
EYW
-
SEA
10h 23m1 stop
$259American Airlines
mar., ene. 13 - mié., ene. 21
American Airlines Logo
8:35 am - 11:56 pm
SEA
-
EYW
12h 21m2 stops
American Airlines Logo
4:37 pm - 11:42 pm
EYW
-
SEA
10h 05m1 stop
$264American Airlines
mar., ene. 13 - mié., ene. 21

Frontier flights from Seattle to Florida Keys

Our best Frontier deals on Seattle to Florida Keys flight tickets
Frontier
Jan 9
SEA12:26 pmSeattle/Tacoma Intl
22h 45m
1 stop
MIA2:11 pmMiami
Jan 14
MIA10:07 amMiami
28h 02m
1 stop
SEA11:09 amSeattle/Tacoma Intl
$210
Find similar
Frontier
Jan 8
SEA12:26 pmSeattle/Tacoma Intl
20h 31m
1 stop
MIA11:57 amMiami
Jan 14
MIA10:07 amMiami
28h 02m
1 stop
SEA11:09 amSeattle/Tacoma Intl
$211
Find similar
Frontier
Jan 6
SEA7:13 pmSeattle/Tacoma Intl
12h 35m
2 stops
MIA10:48 amMiami
Jan 14
MIA10:07 amMiami
28h 02m
1 stop
SEA11:09 amSeattle/Tacoma Intl
$212
Find similar

Southwest flights from Seattle to Florida Keys

Our best Southwest deals on Seattle to Florida Keys flight tickets
Southwest
Feb 21
SEA2:05 pmSeattle/Tacoma Intl
7h 15m
1 stop
MIA12:20 amMiami
Feb 25
MIA2:00 pmMiami
11h 30m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
$213
Find similar
Southwest
Jan 20
SEA6:45 amSeattle/Tacoma Intl
12h 15m
2 stops
MIA10:00 pmMiami
Jan 28
MIA12:00 pmMiami
13h 30m
2 stops
SEA10:30 pmSeattle/Tacoma Intl
$214
Find similar
Southwest
Jan 5
SEA5:35 amSeattle/Tacoma Intl
10h 10m
1 stop
MIA6:45 pmMiami
Jan 13
MIA9:00 amMiami
11h 50m
2 stops
SEA5:50 pmSeattle/Tacoma Intl
$246
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Florida Keys 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 diciembre 4, 2025.
Use the filters below to find and compare flights from Seattle to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

lun. 1/5

7:35 am-4:27 pm

Nonstop5h 52m

Miami

mar. 1/13

8:15 am-2:18 pm

1 stop9h 03m

$209

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

vie. 1/9

12:26 pm-2:11 pm

1 stop22h 45m

Miami

mié. 1/14

10:07 am-11:09 am

1 stop28h 02m

$210

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

jue. 1/8

12:26 pm-11:57 am

1 stop20h 31m

Miami

mié. 1/14

10:07 am-11:09 am

1 stop28h 02m

$211

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

mar. 1/6

7:13 pm-10:48 am

2 stops12h 35m

Miami

mié. 1/14

10:07 am-11:09 am

1 stop28h 02m

$212

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

lun. 1/5

2:54 pm-5:00 am

1 stop11h 06m

Miami

mar. 1/13

4:39 pm-10:33 pm

1 stop8h 54m

$213

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

jue. 1/8

12:26 pm-11:57 am

1 stop20h 31m

Miami

lun. 1/12

7:00 am-7:47 pm

2 stops15h 47m

$214

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

lun. 1/5

8:16 am-5:11 pm

Nonstop5h 55m

Miami

mar. 1/13

4:39 pm-10:33 pm

1 stop8h 54m

$215

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

sáb. 1/31

5:00 pm-3:39 pm

1 stop19h 39m

Miami

mar. 2/3

4:39 pm-10:33 pm

1 stop8h 54m

$218

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

mar. 1/13

7:00 am-6:01 pm

1 stop8h 01m

Key West

mié. 1/21

1:22 pm-8:45 pm

1 stop10h 23m

$259

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

mar. 1/13

8:35 am-11:56 pm

2 stops12h 21m

Key West

mié. 1/21

4:37 pm-11:42 pm

1 stop10h 05m

$264

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 Florida Keys from

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

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from Seattle averaging around $297.

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 Thursday when prices can be found for as low as $556. The most expensive day to fly to Florida Keys is Sunday, with ticket prices averaging around $608.

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 afternoon. momondo users have found flights departing from Seattle to Florida Keys in the afternoon for as low as $263. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $926.

How far in advance should I book a flight 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 $374 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 $313 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

Fastest flight time

5h 42m

Direct flights

Every day

Airports in Florida Keys

1 airport
The fastest flight from Seattle to Florida Keys takes 5h 42m
Direct flights go from Seattle to Florida Keys every day.
There is 1 airport near Florida Keys: Miami (MIA)
Search flight deals

  • 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?

  • 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?

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
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
American AirlinesPriceFrom $318Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
DeltaPriceFrom $338Free CancellationRating
7.9
8,011 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.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Florida Keys

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