FSD - EYW

$355 Find Cheap Flights from Sioux Falls to Key West

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Key West departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Key West, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Key West, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$355
Typical prices: $404-$652
Allegiant Air
Fri 5/15Tue 5/19
FSD - EYW • 1 stop
Top airlines
Cheapest • from $359 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and Key West. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $278 (round-trip)
Shortest trip • 6h 45m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Key West!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux Falls to Key West (FSD-EYW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Key West that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux Falls to Key West

Fri, May 15 - Tue, May 19
Multiple Airlines Logo
10:45 am - 11:04 am
FSD
-
EYW
23h 19m
1 stop
Multiple Airlines Logo
1:14 pm - 12:23 pm
EYW
-
FSD
24h 09m
1 stop
$355Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
6:50 am - 4:49 pm
FSD
-
EYW
8h 59m
2 stops
American Airlines Logo
2:25 pm - 9:40 pm
EYW
-
FSD
8h 15m
1 stop
$359American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
12:14 pm - 10:18 pm
FSD
-
EYW
9h 04m
2 stops
American Airlines Logo
12:55 pm - 9:40 pm
EYW
-
FSD
9h 45m
2 stops
$364American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
6:50 am - 4:49 pm
FSD
-
EYW
8h 59m
2 stops
American Airlines Logo
2:25 pm - 9:40 pm
EYW
-
FSD
8h 15m
1 stop
$379American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
12:14 pm - 10:18 pm
FSD
-
EYW
9h 04m
2 stops
American Airlines Logo
7:45 am - 7:10 pm
EYW
-
FSD
12h 25m
2 stops
$385American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
5:44 am - 7:12 pm
FSD
-
EYW
12h 28m
2 stops
American Airlines Logo
2:25 pm - 9:40 pm
EYW
-
FSD
8h 15m
1 stop
$394American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
6:50 am - 7:12 pm
FSD
-
EYW
11h 22m
2 stops
American Airlines Logo
7:45 am - 7:10 pm
EYW
-
FSD
12h 25m
2 stops
$399American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
12:14 pm - 10:18 pm
FSD
-
EYW
9h 04m
2 stops
American Airlines Logo
2:25 pm - 9:40 pm
EYW
-
FSD
8h 15m
1 stop
$419American Airlines
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
6:50 am - 7:12 pm
FSD
-
EYW
11h 22m
2 stops
American Airlines Logo
7:45 am - 7:10 pm
EYW
-
FSD
12h 25m
2 stops
$425American Airlines
Fri, May 15 - Tue, May 19
American Airlines Logo
1:41 pm - 10:58 pm
FSD
-
EYW
8h 17m
2 stops
American Airlines Logo
1:08 pm - 7:09 pm
EYW
-
FSD
7h 01m
1 stop
$481American Airlines
Booking Insights

KAYAK's insights & trends for Sioux Falls to Key West flights

Get data-powered insights and trends into flights from Sioux Falls to Key West to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sioux Falls to Key West?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Sioux Falls to Key West were found on American Airlines ($359) and United Airlines ($566).

Good to know

Low seasonOctober
Cheapest flight$355
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Sioux Falls to Key West

When to book flights from Sioux Falls to Key West

Are your dates flexible? Find out the best times to travel from Sioux Falls to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sioux Falls to Key West

  • What is the cheapest flight from Sioux Falls to Key West?

    In the last 3 days, the lowest price for a flight from Sioux Falls to Key West was $355 for a round-trip ticket.

  • Do I need a passport to fly between Sioux Falls and Key West?

    A passport is not required to fly from Sioux Falls to Key West.

  • Which aircraft models fly most regularly from Sioux Falls to Key West?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sioux Falls to Key West?

    Star Alliance, and oneworld are the airline alliances operating flights between Sioux Falls and Key West, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sioux Falls to Key West, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Key West are United Airlines and American Airlines. With an average price for the route of $793 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $493 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Sioux Falls to Key West?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sioux Falls to Key West.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux Falls to Key West?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West from Sioux Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sioux Falls to Key West?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key West with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and EYW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux Falls to Key West?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key West from Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sioux Falls to Key West

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Key West. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux Falls to Key West? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9423 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

8.0 ExcellentAlissa, Mar 2026
TPA - EWR
Read more United Airlines reviews

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

We missed our flight and got stranded in Miami where we had to rent a hotel we could not afford. they would not work with us because they said it was weather related even though the gate attendant said it was not. I could go on but trying to get satisfaction has wore me down, which I believe is the intent. My only solution is to never fly AA again.

The flight was really crowded. Flight attendants were just ok.

Didn't get a seat assignment until the last minute even though i picked a seat.

Everything you need to know for your flight from Sioux Falls to Key West

Information on your arrival and departure airports