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Key Largo

$141+ Cheap flights from Sioux Falls (FSD) to Key Largo, FL

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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — MIA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Sioux Falls Joe Foss Field to Key Largo are usually found in September or June, booked 21 days in advance, depart on a Tuesday or Monday and return on a Monday

Find flight deals from Sioux Falls to Key Largo

Cheapest flights from Sioux Falls to Key Largo
Explore the most affordable flight options available from Sioux Falls to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/28. 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.
Mon 12/18:26 pmFSD - MIA
1 stop7h 44mFrontier
Thu 12/46:25 amMIA - FSD
1 stop8h 06mFrontier
Deal found 10/28$252
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/142:27 pmFSD - MIA
1 stop14h 52mFrontier
Sat 11/151:58 pmMIA - FSD
2 stops24h 35mFrontier
Deal found 10/30$253
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 12/51:09 pmFSD - MIA
1 stop7h 34mAmerican Airlines
Sun 12/76:00 amMIA - FSD
1 stop7h 22mAmerican Airlines
Deal found 10/30$289
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Thu 11/132:13 pmFSD - MIA
1 stop15h 06mFrontier
Mon 11/176:00 amMIA - FSD
1 stop8h 47mFrontier
Deal found 10/29$292
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/68:00 amFSD - MIA
2 stops14h 54mUnited Airlines
Mon 12/84:16 pmMIA - FSD
1 stop6h 34mUnited Airlines
Deal found 10/29$294
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/142:27 pmFSD - MIA
1 stop14h 52mFrontier
Thu 11/209:59 pmMIA - FSD
2 stops22h 37mFrontier
Deal found 10/30$300
This CheapOair deal was found by Cheapflights users on 10/27. 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 11/142:27 pmFSD - MIA
1 stop14h 52mFrontier
Fri 11/216:15 amMIA - FSD
1 stop14h 21mFrontier
Deal found 10/27$308
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/141:03 pmFSD - MIA
1 stop7h 54mAmerican Airlines
Thu 11/203:32 pmMIA - FSD
1 stop6h 37mAmerican Airlines
Deal found 10/30$324
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/1710:43 amFSD - MIA
1 stop7h 22mAmerican Airlines
Tue 12/306:00 amMIA - FSD
1 stop7h 28mAmerican Airlines
Deal found 10/28$331
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/42:26 pmFSD - MIA
1 stop13h 53mFrontier
Sun 12/76:00 amMIA - FSD
1 stop8h 31mFrontier
Deal found 10/29$334
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Thu 11/2011:46 amFSD - MIA
2 stops22h 37mMultiple Airlines
Sun 11/236:00 amMIA - FSD
2 stops28h 45mMultiple Airlines
Deal found 10/30$335
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:27 pmFSD - MIA
1 stop14h 52mFrontier
Sun 11/166:00 amMIA - FSD
1 stop8h 33mFrontier
Deal found 10/29$338

Cheap flight deals from Sioux Falls to Key Largo

Keep the following information in mind while searching for Sioux Falls to Key Largo flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$207
(Kiwi.com)

One-way from

$141
(Frontier)

Popular in

March

Cheapest in

September

Average price

$505
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Miami flights.
Search Deals
From Sioux Falls Joe Foss Field to Key Largo
Search Deals
One-way flight from Sioux Falls Joe Foss Field to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Key Largo 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 October 30, 2025.
Use the filters below to find and compare flights from Sioux Falls to Key Largo that are best for you.

Fly from

Sioux Falls

Fly to

Key Largo

Route

Depart

Return

Price

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Fri 1/23

4:57 pm-5:26 pm

1 stop23h 29m

Miami

Thu 1/29

11:28 am-4:07 pm

1 stop29h 39m

$207

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sat 1/24

9:00 am-10:35 pm

2 stops12h 35m

Miami

Sat 1/31

9:00 am-2:36 pm

1 stop6h 36m

$294

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sat 1/24

1:02 pm-12:51 am

2 stops10h 49m

Miami

Sat 1/31

8:05 am-3:37 pm

2 stops8h 32m

$299

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Fri 1/23

11:22 am-11:59 pm

2 stops11h 37m

Miami

Thu 1/29

1:45 pm-9:50 pm

2 stops9h 05m

$299

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Fri 11/14

2:27 pm-6:19 am

1 stop14h 52m

Miami

Fri 11/21

6:15 am-7:36 pm

1 stop14h 21m

$308

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sat 1/10

11:22 am-10:20 pm

2 stops9h 58m

Miami

Mon 1/12

11:05 am-8:39 pm

2 stops10h 34m

$318

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Fri 11/14

2:27 pm-6:19 am

1 stop14h 52m

Miami

Sun 11/16

6:00 am-1:33 pm

1 stop8h 33m

$338

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Thu 11/13

1:47 pm-9:59 pm

1 stop7h 12m

Miami

Sat 11/15

8:00 am-4:18 pm

1 stop9h 18m

$339

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Mon 12/1

1:31 pm-10:24 am

2 stops43h 53m

Miami

Thu 12/4

6:25 am-1:31 pm

1 stop8h 06m

$347

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Thu 12/11

8:00 am-4:50 pm

1 stop7h 50m

Miami

Wed 12/24

12:00 pm-5:27 pm

1 stop6h 27m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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Best time to book a flight from Sioux Falls to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Sioux Falls 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 Sioux Falls to Key Largo

How far ahead should I book a flight from Sioux Falls to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Sioux Falls to Key Largo. Price data was last updated on October 24, 2025.

The price you pay for your flight from Sioux Falls to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 21 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 Sioux Falls to Key Largo?

Currently, April is the cheapest month in which you can book a flight from Sioux Falls to Key Largo (average of $90). Flying from Sioux Falls to Key Largo in November is currently the most expensive (average of $297). 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 FSD to KE9?

Find hourly flight availability from Sioux Falls to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Sioux Falls to Key Largo in the evening. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Sioux Falls to Key Largo?

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Sioux Falls to Key Largo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Frontier
5.8
Fair
3,122 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux Falls to Key Largo?

    Sioux Falls Joe Foss Field (FSD), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Sioux Falls to Key Largo. 5 airlines have flights from Joe Foss Field to Key Largo on a regular basis. Booking flights from Sioux Falls Joe Foss Field to Key Largo should not be difficult; the airport handles an average of 0 outbound flights to Key Largo per day.

  • How long is the flight from Sioux Falls to Key Largo?

    For as low as $299, United Airlines can have you in Key Largo from Sioux Falls in 10h 49m. Airlines will cover a distance of 1537 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Sioux Falls to Key Largo that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Key Largo.

  • Can I find deals for business class flights from Sioux Falls to Key Largo?

    Yes. Cheapflights offers flight deals from Sioux Falls to Key Largo 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 Sioux Falls to Key Largo?

    Currently, April is the cheapest month in which you can book a flight from Sioux Falls to Key Largo (average of $90). Flying from Sioux Falls to Key Largo in November is currently the most expensive (average of $297). 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.

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Top 5 airlines flying from Sioux Falls to Key Largo

Discover the top 5 airlines that operate flights from Sioux Falls to Key Largo. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$144FlexibilityNo cancel feeOn-time88%
FrontierCheapest$240Average$318FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$250Average$502FlexibilityNo cancel feeOn-time71%
DeltaCheapest$265Average$499FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$270Average$548FlexibilityNo cancel feeOn-time69%

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