$124+ Cheap flights from Seattle (SEA) to Florida Keys
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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EYW
Mar 14 — Mar 211
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Florida Keys with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Florida Keys
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Florida KeysExplore the most affordable flight options available from Seattle to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
Explore the most affordable flight options available from Seattle to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
This Delta deal was found by Cheapflights users on 2/12. 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.
Sun 3/88:00 am
SEA
- MIA
Nonstop5h 46m
Delta
Tue 3/175:56 pm
MIA
- SEA
Nonstop6h 52m
Delta
Deal found 2/12![Delta logo]()
$197
This Frontier deal was found by Cheapflights users on 2/12. 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.
Thu 4/164:20 pm
SEA
- MIA
1 stop9h 45m
Frontier
Mon 4/205:50 am
MIA
- SEA
1 stop12h 15m
Frontier
Deal found 2/12![Frontier logo]()
$200
This CheapOair deal was found by Cheapflights users on 2/12. 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.
Fri 5/19:35 pm
SEA
- MIA
1 stop30h 57m
Frontier
Fri 5/88:42 am
MIA
- SEA
1 stop14h 38m
Frontier
Deal found 2/12![Frontier logo]()
$211
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:30 pm
SEA
- MIA
1 stop14h 18m
Frontier
Thu 2/266:45 am
MIA
- SEA
1 stop31h 10m
Frontier
Deal found 2/9![Frontier logo]()
$212
This Delta deal was found by Cheapflights users on 2/12. 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.
Tue 3/175:55 pm
SEA
- MIA
1 stop9h 54m
Delta
Sat 3/216:55 am
MIA
- SEA
1 stop11h 14m
Delta
Deal found 2/12![Delta logo]()
$217
This Frontier deal was found by Cheapflights users on 2/10. 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.
Sun 4/1212:42 pm
SEA
- MIA
1 stop14h 07m
Frontier
Sun 4/195:50 am
MIA
- SEA
1 stop12h 15m
Frontier
Deal found 2/10![Frontier logo]()
$221
This Orbitz deal was found by Cheapflights users on 2/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:55 am
SEA
- MIA
Nonstop6h 09m
Multiple Airlines
Fri 5/85:50 am
MIA
- SEA
1 stop30h 37m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$224
This Trip.com deal was found by Cheapflights users on 2/11. 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 4/274:20 pm
SEA
- MIA
1 stop9h 45m
Frontier
Wed 4/297:50 am
MIA
- SEA
1 stop28h 37m
Frontier
Deal found 2/11![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/2312:30 pm
SEA
- MIA
2 stops20h 46m
Multiple Airlines
Wed 3/46:25 am
MIA
- SEA
1 stop32h 36m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/212:30 pm
SEA
- MIA
1 stop13h 44m
Frontier
Wed 3/113:16 pm
MIA
- SEA
2 stops23h 03m
Frontier
Deal found 2/9![Frontier logo]()
$229
This Trip.com deal was found by Cheapflights users on 2/11. 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.
Fri 5/19:35 pm
SEA
- MIA
1 stop30h 57m
Frontier
Sat 5/96:30 am
MIA
- SEA
1 stop29h 57m
Frontier
Deal found 2/11![Frontier logo]()
$230
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:08 pm
SEA
- EYW
1 stop10h 55m
American Airlines
Tue 3/102:40 pm
EYW
- SEA
1 stop11h 29m
American Airlines
Deal found 2/12![American Airlines logo]()
$359
Best flights from Seattle to Florida KeysDiscover carefully curated flight deals from Seattle to Florida Keys that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
Discover carefully curated flight deals from Seattle to Florida Keys that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
This Delta deal was found by Cheapflights users on 2/12. 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.
Sun 3/88:00 am
SEA
- MIA
Nonstop5h 46m
Delta
Tue 3/175:56 pm
MIA
- SEA
Nonstop6h 52m
Delta
Deal found 2/12![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1711:59 pm
SEA
- MIA
1 stop7h 56m
United Airlines
Thu 3/269:35 am
MIA
- SEA
1 stop11h 29m
United Airlines
Deal found 2/11![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 2/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:30 am
SEA
- MIA
1 stop10h 30m
Southwest
Tue 3/2411:40 am
MIA
- SEA
2 stops13h 50m
Southwest
Deal found 2/10![Southwest logo]()
$288
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:08 pm
SEA
- EYW
1 stop10h 55m
American Airlines
Tue 3/102:40 pm
EYW
- SEA
1 stop11h 29m
American Airlines
Deal found 2/12![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 2/12. 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.
Mon 4/207:15 am
SEA
- MIA
Nonstop5h 56m
Delta
Fri 4/245:25 pm
MIA
- SEA
Nonstop6h 40m
Delta
Deal found 2/12![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 2/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1211:59 pm
SEA
- MIA
1 stop7h 56m
United Airlines
Thu 3/191:00 pm
MIA
- SEA
1 stop9h 25m
United Airlines
Deal found 2/12![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 2/8. 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.
Fri 5/158:00 am
SEA
- MIA
Nonstop6h 04m
Delta
Fri 5/226:15 pm
MIA
- SEA
Nonstop6h 50m
Delta
Deal found 2/8![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 2/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:55 pm
SEA
- MIA
2 stops11h 20m
Southwest
Wed 4/291:25 pm
MIA
- SEA
2 stops12h 05m
Southwest
Deal found 2/11![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 2/10. 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.
Thu 5/288:00 am
SEA
- MIA
Nonstop6h 04m
Delta
Sat 5/306:15 pm
MIA
- SEA
Nonstop6h 50m
Delta
Deal found 2/10![Delta logo]()
$307
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:08 pm
SEA
- EYW
1 stop10h 55m
American Airlines
Sat 3/72:06 pm
EYW
- SEA
2 stops13h 18m
American Airlines
Deal found 2/9![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 2/12. 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.
Tue 5/198:00 am
SEA
- MIA
Nonstop6h 04m
Delta
Tue 5/266:15 pm
MIA
- SEA
Nonstop6h 50m
Delta
Deal found 2/12![Delta logo]()
$307
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2810:57 pm
SEA
- EYW
2 stops11h 18m
American Airlines
Sat 3/72:06 pm
EYW
- SEA
2 stops13h 18m
American Airlines
Deal found 2/9![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 2/12. 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.
Tue 3/178:00 am
SEA
- MIA
Nonstop5h 46m
Delta
Sat 3/215:56 pm
MIA
- SEA
Nonstop6h 52m
Delta
Deal found 2/12![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:20 pm
SEA
- EYW
2 stops17h 03m
United Airlines
Wed 3/184:05 pm
EYW
- SEA
1 stop9h 40m
United Airlines
Deal found 2/10![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 2/11. 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 3/148:00 am
SEA
- MIA
Nonstop5h 46m
Delta
Tue 3/175:56 pm
MIA
- SEA
Nonstop6h 52m
Delta
Deal found 2/11![Delta logo]()
$317
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:21 am
SEA
- EYW
2 stops12h 16m
American Airlines
Wed 3/183:56 pm
EYW
- SEA
1 stop10h 44m
American Airlines
Deal found 2/9![American Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:35 pm
SEA
- EYW
1 stop10h 40m
United Airlines
Sat 3/72:24 pm
EYW
- SEA
1 stop11h 29m
United Airlines
Deal found 2/9![United Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:15 am
SEA
- EYW
2 stops12h 07m
American Airlines
Sat 3/72:06 pm
EYW
- SEA
2 stops13h 18m
American Airlines
Deal found 2/12![American Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 2/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:55 am
SEA
- EYW
1 stop8h 14m
United Airlines
Sat 3/72:24 pm
EYW
- SEA
1 stop11h 29m
United Airlines
Deal found 2/12![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 2/10. 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.
Mon 5/411:15 pm
SEA
- EYW
1 stop8h 35m
Delta
Sat 5/97:30 am
EYW
- SEA
2 stops16h 00m
Delta
Deal found 2/10![Delta logo]()
$482
Last-minute flights from Seattle to Florida KeysDiscover last-minute flight deals from Seattle to Florida Keys. Data last updated February 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Florida Keys. Data last updated February 12, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/9. 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.
Mon 2/2312:30 pm
SEA
- MIA
1 stop14h 18m
Frontier
Sat 2/286:25 am
MIA
- SEA
1 stop8h 36m
Frontier
Deal found 2/9![Frontier logo]()
$200
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:30 pm
SEA
- MIA
1 stop14h 18m
Frontier
Thu 2/266:45 am
MIA
- SEA
1 stop31h 10m
Frontier
Deal found 2/9![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/2312:30 pm
SEA
- MIA
2 stops20h 46m
Multiple Airlines
Wed 3/46:25 am
MIA
- SEA
1 stop32h 36m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/2312:30 pm
SEA
- MIA
1 stop14h 18m
Frontier
Tue 3/36:25 am
MIA
- SEA
2 stops14h 53m
Frontier
Deal found 2/9![Frontier logo]()
$240
This CheapOair deal was found by Cheapflights users on 2/10. 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 2/261:16 pm
SEA
- MIA
1 stop12h 58m
Frontier
Sat 2/286:25 am
MIA
- SEA
1 stop8h 36m
Frontier
Deal found 2/10![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Thu 2/261:16 pm
SEA
- MIA
2 stops20h 00m
Multiple Airlines
Thu 3/56:45 am
MIA
- SEA
1 stop31h 34m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Fri 2/2712:00 pm
SEA
- MIA
1 stop14h 14m
Frontier
Wed 3/46:25 am
MIA
- SEA
1 stop32h 36m
Frontier
Deal found 2/12![Frontier logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/212:30 pm
SEA
- MIA
1 stop13h 44m
Frontier
Wed 3/113:16 pm
MIA
- SEA
2 stops23h 03m
Frontier
Deal found 2/9![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/28:08 am
SEA
- MIA
Nonstop5h 51m
Hawaiian Airlines
Wed 3/115:59 pm
MIA
- SEA
Nonstop7h 05m
Hawaiian Airlines
Deal found 2/9![Hawaiian Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:08 pm
SEA
- EYW
1 stop10h 55m
American Airlines
Tue 3/102:40 pm
EYW
- SEA
1 stop11h 29m
American Airlines
Deal found 2/12![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 2/12. 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.
Sun 3/88:00 am
SEA
- MIA
Nonstop5h 46m
Delta
Tue 3/175:56 pm
MIA
- SEA
Nonstop6h 52m
Delta
Deal found 2/12![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/12. 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.
Tue 3/175:55 pm
SEA
- MIA
1 stop9h 54m
Delta
Sat 3/216:55 am
MIA
- SEA
1 stop11h 14m
Delta
Deal found 2/12![Delta logo]()
$217
One-way flights from Seattle to Florida KeysSearch for one-way flight options from Seattle to Florida Keys. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
Search for one-way flight options from Seattle to Florida Keys. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/309:40 pm
SEA
- MIA
2 stops33h 37m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$124
This Super.com deal was found by Cheapflights users on 2/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:00 pm
SEA
- MIA
1 stop14h 14m
Frontier
Deal found 2/9![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/281:51 pm
SEA
- MIA
2 stops36h 23m
Frontier
Deal found 2/9![Frontier logo]()
$126
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:55 am
SEA
- MIA
1 stop7h 59m
United Airlines
Deal found 2/9![United Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Thu 3/51:16 pm
SEA
- MIA
2 stops32h 55m
Frontier
Deal found 2/9![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/99:36 pm
SEA
- MIA
2 stops20h 15m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Thu 4/306:57 pm
SEA
- MIA
2 stops27h 33m
Frontier
Deal found 2/9![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/3110:08 pm
SEA
- MIA
3 stops33h 09m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$133
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:05 pm
SEA
- MIA
2 stops13h 46m
United Airlines
Deal found 2/11![United Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/206:57 pm
SEA
- EYW
2 stops37h 14m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/309:40 pm
SEA
- EYW
2 stops34h 31m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/281:51 pm
SEA
- EYW
2 stops16h 15m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$170
Find flight deals from Seattle to Florida Keys
Keep the following information in mind while searching for Seattle to Florida Keys flight deals. Data was last updated February 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Delta) |
One-way from | $124 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $387 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Seattle to Florida Keys that are best for you.
Fly from
Seattle
Fly to
Florida Keys
Route
Depart
Return
Price
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Sun 3/8
8:00 am-4:46 pm
Nonstop5h 46m
Miami
Tue 3/17
5:56 pm-9:48 pm
Nonstop6h 52m
$197
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Mon 4/20
7:15 am-4:11 pm
Nonstop5h 56m
Miami
Fri 4/24
5:25 pm-9:05 pm
Nonstop6h 40m
$237
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Tue 3/17
11:59 pm-10:55 am
1 stop7h 56m
Miami
Thu 3/26
9:35 am-6:04 pm
1 stop11h 29m
$277
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Fri 5/15
8:00 am-5:04 pm
Nonstop6h 04m
Miami
Fri 5/22
6:15 pm-10:05 pm
Nonstop6h 50m
$277
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Mon 3/16
5:30 am-7:00 pm
1 stop10h 30m
Miami
Tue 3/24
11:40 am-10:30 pm
2 stops13h 50m
$288
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Thu 3/12
11:59 pm-10:55 am
1 stop7h 56m
Miami
Thu 3/19
1:00 pm-7:25 pm
1 stop9h 25m
$297
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Thu 5/28
8:00 am-5:04 pm
Nonstop6h 04m
Miami
Sat 5/30
6:15 pm-10:05 pm
Nonstop6h 50m
$307
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Tue 5/19
8:00 am-5:04 pm
Nonstop6h 04m
Miami
Tue 5/26
6:15 pm-10:05 pm
Nonstop6h 50m
$307
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Tue 3/17
8:00 am-4:46 pm
Nonstop5h 46m
Miami
Sat 3/21
5:56 pm-9:48 pm
Nonstop6h 52m
$307
SeattleMiami
SEA - MIA
SEAMIA
Seattle/Tacoma Intl
Mon 4/27
11:55 pm-2:15 pm
2 stops11h 20m
Miami
Wed 4/29
1:25 pm-10:30 pm
2 stops12h 05m
$312
Showing 1-10 of 34 results
Best time to book a flight from Seattle to Florida Keys
Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Seattle with our price prediction graph.
SEA-MIA
SEA-EYW
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 Seattle to Florida Keys
SEA-zzEOA
SEA-MIA
SEA-EYW
What is the cheapest month to book a flight from Seattle to Florida Keys?
Currently, September is the cheapest month in which you can book a flight from Seattle to Florida Keys (average of $308). Flying from Seattle to Florida Keys in June is currently the most expensive (average of $546). 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.
Reviews of airlines servicing Florida Keys
Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated February 12, 2026.
Read through reviews of airlines operating flights from Seattle to Florida Keys, such as Alaska Airlines, Delta, and Hawaiian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Dec 2025
SEA - MSY
Related info for your journey
Find useful and relevant information for your journey from Seattle to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Seattle to Florida Keys
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Florida Keys by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Florida Keys by cabin class
Find flights from Seattle to Florida Keys, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Florida Keys flights
Browse other Seattle and Florida Keys flight options. Last updated on February 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Seattle to Florida Keys
Discover the top 3 airlines that operate flights from Seattle to Florida Keys. 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 February 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$328 | Average$546 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$338 | Average$638 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$348 | Average$587 | FlexibilityNo cancel fee | On-time69% |