Cheap flights from South Dakota to Key West from $283
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Key West departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from South Dakota to Key West
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American Airlines flights from South Dakota to Key West
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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
What is the cheapest month to fly to Key West?
In general, January 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 $358. If you are unable to visit Key West during the month of January, then departing from South Dakota during the month September is also very affordable. Most momondo users find prices during this month for around $368.
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.
What is the cheapest airline that flies from South Dakota to Key West?
American Airlines is the most popular carrier operating from South Dakota to Key West
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 60% 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.
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
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 June 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 | ||
|---|---|---|---|---|---|
| PriceFrom $288 | Free Cancellation | Rating 8.0 7,966 reviews | |||
| PriceFrom $298 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $353 | Free Cancellation | Rating 7.4 8,825 reviews |
Traveling to a place near Key West?
Book flights to Key West if you plan to visit one of these locationsWhy use momondo?
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.