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Key Largo

$131+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — MIA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 July, booked 21 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/1810:46 amFSD - MIA
1 stop7h 41mAmerican Airlines
Wed 12/248:20 amMIA - FSD
1 stop8h 25mAmerican Airlines
Deal found 12/17$484
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/205:16 pmFSD - MIA
1 stop6h 21mAmerican Airlines
Mon 12/225:14 pmMIA - FSD
1 stop7h 45mAmerican Airlines
Deal found 12/16$497
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/195:16 pmFSD - MIA
1 stop6h 21mAmerican Airlines
Sun 12/213:30 pmMIA - FSD
1 stop6h 47mAmerican Airlines
Deal found 12/15$519
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/247:30 amFSD - MIA
1 stop6h 34mUnited Airlines
Mon 12/294:06 pmMIA - FSD
1 stop6h 50mUnited Airlines
Deal found 12/17$524
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/297:11 amFSD - MIA
1 stop5h 55mAmerican Airlines
Thu 1/17:01 amMIA - FSD
1 stop6h 27mAmerican Airlines
Deal found 12/17$526
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/245:16 amFSD - MIA
1 stop5h 23mDelta
Mon 12/296:25 amMIA - FSD
1 stop7h 08mDelta
Deal found 12/15$559
This Delta deal was found by Cheapflights users on 12/16. 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 12/195:14 amFSD - MIA
2 stops8h 31mDelta
Sat 12/276:25 amMIA - FSD
1 stop7h 08mDelta
Deal found 12/16$569
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/256:00 amFSD - MIA
1 stop7h 22mAmerican Airlines
Tue 12/303:59 pmMIA - FSD
1 stop9h 00mAmerican Airlines
Deal found 12/17$571
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/247:11 amFSD - MIA
2 stops12h 46mAmerican Airlines
Mon 12/295:00 amMIA - FSD
1 stop8h 28mAmerican Airlines
Deal found 12/15$579
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/187:30 amFSD - MIA
2 stops10h 15mUnited Airlines
Wed 12/2411:56 amMIA - FSD
2 stops12h 59mUnited Airlines
Deal found 12/17$584
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/1911:27 amFSD - MIA
2 stops11h 09mUnited Airlines
Sun 12/213:37 pmMIA - FSD
1 stop9h 18mUnited Airlines
Deal found 12/15$585

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(American Airlines)

One-way from

$131
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$494
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. 15% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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

Wed 5/6

5:15 am-1:30 pm

1 stop7h 15m

Miami

Mon 5/11

3:35 pm-10:11 pm

1 stop7h 36m

$289

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sun 5/3

5:15 am-1:30 pm

1 stop7h 15m

Miami

Sat 5/9

7:15 am-12:28 pm

1 stop6h 13m

$289

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sun 5/3

5:15 am-1:30 pm

1 stop7h 15m

Miami

Tue 5/12

4:40 pm-10:11 pm

1 stop6h 31m

$289

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Tue 5/5

10:58 am-5:35 pm

1 stop5h 37m

Miami

Sat 5/9

7:15 am-12:28 pm

1 stop6h 13m

$289

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sat 5/9

5:25 am-2:33 pm

1 stop8h 08m

Miami

Sun 5/10

7:15 am-12:28 pm

1 stop6h 13m

$289

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Tue 5/5

1:20 pm-12:56 am

2 stops10h 36m

Miami

Sun 5/10

7:15 am-12:28 pm

1 stop6h 13m

$294

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Tue 5/5

5:15 am-5:09 pm

2 stops10h 54m

Miami

Tue 5/12

7:15 am-12:28 pm

1 stop6h 13m

$294

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Fri 2/27

1:12 pm-8:33 pm

1 stop6h 21m

Miami

Fri 3/6

5:05 am-12:27 pm

1 stop8h 22m

$314

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sun 2/1

12:26 pm-9:10 pm

1 stop7h 44m

Miami

Sat 2/28

6:30 am-11:49 am

1 stop6h 19m

$314

Sioux FallsMiami

FSD - MIA

FSDMIA

Sioux Falls Joe Foss Field

Sat 1/24

1:40 pm-11:30 pm

1 stop8h 50m

Miami

Wed 1/28

9:00 am-2:36 pm

1 stop6h 36m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 20 results
1
2

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 December 12, 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, January is the cheapest month in which you can book a flight from Sioux Falls to Key Largo (average of $86). Flying from Sioux Falls to Key Largo in November is currently the most expensive (average of $315). 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 December 18, 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 46% 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 December 18, 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
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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. 4 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 $289, Delta can have you in Key Largo from Sioux Falls in 7h 15m. Airlines will cover a distance of 1537 mi.

  • What are the cheapest airlines to fly from Sioux Falls to Key Largo one-way?

    The cheapest airlines for a one-way flight from Sioux Falls to Key Largo are American Airlines ($144), Delta ($144), and United Airlines ($189).

  • 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, January is the cheapest month in which you can book a flight from Sioux Falls to Key Largo (average of $86). Flying from Sioux Falls to Key Largo in November is currently the most expensive (average of $315). 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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Alternative routes for Sioux Falls to Key Largo

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Top 4 airlines flying from Sioux Falls to Key Largo

Discover the top 4 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$154FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$250Average$503FlexibilityNo cancel feeOn-time71%
DeltaCheapest$259Average$529FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$270Average$567FlexibilityNo cancel feeOn-time69%

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