How long does it take to fly to Key West?

If you’re flying from a popular airport in South Dakota, such as Sioux Falls or Aberdeen, and flying into Key West, then you can expect flight times to average 4h 57m and 27h 58m, respectively.

What airlines fly to Key West?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Key West from South Dakota according to our data. American Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from South Dakota to Key West Airport?

Prices for flights from South Dakota to Key West Airport are updated daily.

How many operators does momondo search for flights from South Dakota to Key West Airport?

As of September 2025, there are 3 operators available to choose from for flights from South Dakota to Key West Airport.

How old do you have to be to fly from South Dakota to Key West Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$316 Cheap Flights from South Dakota to Key West in 2025

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Find the cheapest flights from South Dakota to Key West

Round-trip

One-way

Cheap round-trip flights

6:45 am - 4:04 pmFSD-EYW

8h 19m1 stop

4:00 pm - 10:15 pmEYW-FSD

7h 15m1 stop

$316American Airlines

Find Deal

Wed, Feb 25 - Wed, Mar 4

6:45 am - 4:04 pmFSD-EYW

8h 19m1 stop

6:31 am - 2:50 pmEYW-FSD

9h 19m2 stops

$321American Airlines

Find Deal

Wed, Feb 25 - Wed, Mar 4

10:59 am - 9:49 pmFSD-EYW

9h 50m2 stops

7:31 am - 6:52 pmEYW-FSD

12h 21m2 stops

$326American Airlines

Find Deal

Sat, Nov 8 - Wed, Nov 12

6:49 am - 4:18 pmFSD-EYW

8h 29m1 stop

2:32 pm - 8:37 pmEYW-FSD

7h 05m1 stop

$373American Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

5:30 am - 11:27 amFSD-EYW

4h 57m1 stop

7:40 am - 3:44 pmEYW-FSD

9h 04m2 stops

$376Delta

Find Deal

Tue, Oct 28 - Sat, Nov 1

5:20 am - 5:12 pmFSD-EYW

10h 52m2 stops

7:40 am - 3:44 pmEYW-FSD

9h 04m2 stops

$469Delta

Find Deal

Tue, Oct 28 - Sat, Nov 1

8:50 am - 1:02 pmFSD-EYW

27h 12m2 stops

4:15 pm - 10:47 amEYW-FSD

19h 32m1 stop

$579United Airlines

Find Deal

Mon, Jan 5 - Fri, Jan 9

8:50 am - 1:02 pmFSD-EYW

27h 12m2 stops

4:15 pm - 10:47 amEYW-FSD

19h 32m1 stop

$584United Airlines

Find Deal

Mon, Jan 5 - Fri, Jan 9

1:10 pm - 12:30 pmFSD-EYW

46h 20m2 stops

10:35 pm - 9:27 amEYW-FSD

11h 52m1 stop

$596

Find Deal

Sat, Dec 20 - Sat, Dec 27

1:10 pm - 12:30 pmFSD-EYW

46h 20m2 stops

10:35 pm - 9:27 amEYW-FSD

11h 52m1 stop

$603

Find Deal

Sat, Dec 20 - Sat, Dec 27

American Airlines flights from South Dakota to Key West

Our best American Airlines deals on South Dakota to Key West flight tickets

American Airlines

Feb 25

FSD6:45 amSioux Falls Joe Foss Field

8h 19m

1 stop

EYW4:04 pmKey West

Mar 4

EYW4:00 pmKey West

7h 15m

1 stop

FSD10:15 pmSioux Falls Joe Foss Field

$316

Find similar

American Airlines

Feb 25

FSD6:45 amSioux Falls Joe Foss Field

8h 19m

1 stop

EYW4:04 pmKey West

Mar 4

EYW6:31 amKey West

9h 19m

2 stops

FSD2:50 pmSioux Falls Joe Foss Field

$321

Find similar

American Airlines

Nov 8

FSD10:59 amSioux Falls Joe Foss Field

9h 50m

2 stops

EYW9:49 pmKey West

Nov 12

EYW7:31 amKey West

12h 21m

2 stops

FSD6:52 pmSioux Falls Joe Foss Field

$326

Find similar

United Airlines flights from South Dakota to Key West

Our best United Airlines deals on South Dakota to Key West flight tickets

United Airlines

Jan 5

FSD8:50 amSioux Falls Joe Foss Field

27h 12m

2 stops

EYW1:02 pmKey West

Jan 9

EYW4:15 pmKey West

19h 32m

1 stop

FSD10:47 amSioux Falls Joe Foss Field

$579

Find similar

United Airlines

Jan 5

FSD8:50 amSioux Falls Joe Foss Field

27h 12m

2 stops

EYW1:02 pmKey West

Jan 9

EYW4:15 pmKey West

19h 32m

1 stop

FSD10:47 amSioux Falls Joe Foss Field

$584

Find similar

United Airlines

Jan 5

FSD8:50 amSioux Falls Joe Foss Field

27h 12m

2 stops

EYW1:02 pmKey West

Jan 9

EYW1:30 pmKey West

33h 20m

2 stops

FSD9:50 pmSioux Falls Joe Foss Field

$585

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Wed 2/25

6:45 am-4:04 pm

1 stop8h 19m

Key West

Wed 3/4

4:00 pm-10:15 pm

1 stop7h 15m

$316

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Wed 2/25

6:45 am-4:04 pm

1 stop8h 19m

Key West

Wed 3/4

6:31 am-2:50 pm

2 stops9h 19m

$321

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Sat 11/8

10:59 am-9:49 pm

2 stops9h 50m

Key West

Wed 11/12

7:31 am-6:52 pm

2 stops12h 21m

$326

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Tue 10/28

6:49 am-4:18 pm

1 stop8h 29m

Key West

Sat 11/1

2:32 pm-8:37 pm

1 stop7h 05m

$373

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Tue 10/28

5:30 am-11:27 am

1 stop4h 57m

Key West

Sat 11/1

7:40 am-3:44 pm

2 stops9h 04m

$376

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Tue 10/28

5:20 am-5:12 pm

2 stops10h 52m

Key West

Sat 11/1

7:40 am-3:44 pm

2 stops9h 04m

$469

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Mon 1/5

8:50 am-1:02 pm

2 stops27h 12m

Key West

Fri 1/9

4:15 pm-10:47 am

1 stop19h 32m

$579

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Mon 1/5

8:50 am-1:02 pm

2 stops27h 12m

Key West

Fri 1/9

4:15 pm-10:47 am

1 stop19h 32m

$584

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Sat 12/20

1:10 pm-12:30 pm

2 stops46h 20m

Key West

Sat 12/27

10:35 pm-9:27 am

1 stop11h 52m

$596

Sioux FallsKey West

FSD - EYW

FSDEYW

Sioux Falls Joe Foss Field

Sat 12/20

1:10 pm-12:30 pm

2 stops46h 20m

Key West

Sat 12/27

10:35 pm-9:27 am

1 stop11h 52m

$603

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from South Dakota to Key West

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 Key West?

In general, July is the cheapest month to fly from South Dakota to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $310. If you are unable to visit Key West during the month of July, then departing from South Dakota during the month January is also very affordable. Most momondo users find prices during this month for around $358.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from South Dakota is on a Friday. momondo users have found tickets for Friday departures for as low as $302. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from South Dakota to Key West for around $660.

Can stopping save me money on South Dakota to Key West flights?

You could potentially save up to 58% on your flight if you consider stops on a South Dakota to Key West flight.

Cheap South Dakota to Key West flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Dakota to Key West

Direct flights	None

There are no direct flights from South Dakota to Key West. There are no popular flight routes from South Dakota to Key West.

Search flight deals

When did momondo last update prices for flights from South Dakota to Key West Airport?
Prices for flights from South Dakota to Key West Airport are updated daily.
How many operators does momondo search for flights from South Dakota to Key West Airport?
As of September 2025, there are 3 operators available to choose from for flights from South Dakota to Key West Airport.
How old do you have to be to fly from South Dakota to Key West Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from South Dakota to Key West

Compare and see reviews for airlines that fly from South Dakota to Key West with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $310	Free Cancellation	Rating 7.9 7,966 reviews	Search Delta flights
United Airlines	PriceFrom $353	Free Cancellation	Rating 7.4 8,944 reviews	Search United Airlines flights

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Why should I use momondo to find a flight deal from South Dakota to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from South Dakota to Key West. momondo saves you time and could save you money on your trip.

Can I find flights from South Dakota to Key West with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for South Dakota to Key West flights to just show those with flexible booking policies.

How can momondo help me find flights from South Dakota to Key West?

Once you have performed a search for South Dakota to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from South Dakota to Key West right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Key West from South Dakota. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.