Cheap Flights to South Dakota from 644 € Return

Q: What is the cheapest month to fly to South Dakota?

The cheapest month to fly to Sioux Falls is currently January . The cheapest month to fly to Watertown is currently September . The cheapest month to fly to Rapid City Regional is currently October . And the cheapest month to fly to Aberdeen is currently September .

Q: What is the cheapest day to fly to South Dakota?

The cheapest day to fly to Sioux Falls is currently Thursday, 8 January 2026 . The cheapest day to fly to Rapid City Regional is currently Thursday, 2 October 2025 . The cheapest day to fly to Watertown is currently Saturday, 13 September 2025 . And the cheapest day to fly to Aberdeen is currently Thursday, 11 September 2025 .

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Find where to fly in South Dakota

You could visit 5 destinations in South Dakota – explore your options right here.

Flight deals to South Dakota

Find the best prices for one-way or return flights to South Dakota's most popular spots.

Sioux Falls.644 € per passenger.Departing Thu, 8 Jan, returning Wed, 14 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Dublin on Thu, 8 Jan, arriving in Sioux Falls.Inbound indirect flight with Delta, departs from Sioux Falls on Wed, 14 Jan, arriving in Dublin.Price includes taxes and charges.From 644 €, select.

Rapid City.701 € per passenger.Departing Thu, 2 Oct, returning Mon, 10 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Dublin on Thu, 2 Oct, arriving in Rapid City Regional.Inbound indirect flight with Delta, departs from Rapid City Regional on Mon, 10 Nov, arriving in Dublin.Price includes taxes and charges.From 701 €, select.

Watertown.717 € per passenger.Departing Sat, 13 Sep, returning Sat, 20 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Dublin on Sat, 13 Sep, arriving in Watertown.Inbound indirect flight with Delta, departs from Watertown on Sat, 20 Sep, arriving in Dublin.Price includes taxes and charges.From 717 €, select.

Aberdeen.927 € per passenger.Departing Thu, 11 Sep, returning Sun, 14 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Dublin on Thu, 11 Sep, arriving in Aberdeen.Inbound indirect flight with Delta, departs from Aberdeen on Sun, 14 Sep, arriving in Dublin.Price includes taxes and charges.From 927 €, select.

Flying to South Dakota

The things to know before you go.

Cheapest flight found	644 €, Sioux Falls
Cheapest month to fly	January
Cheapest airport to fly from	Dublin

How to find cheap one-way and return flights to South Dakota

Here are a few tips on how to find the best price for South Dakota flights.

Simply hit 'search'

We've compared all the best online travel agents and flight providers out there to find the cheapest plane tickets to South Dakota. And with us, there are no added fees – what you see is what you pay.

Fly into Rapid City

At the moment, the lowest priced flight tickets to South Dakota are from Dublin to Rapid City Regional.

Fly in October

The cheapest time to fly to South Dakota is currently October.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to travel to any city you choose in South Dakota.

Set up a Price Alert

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Book flights to South Dakota on the Skyscanner app

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Book flight tickets to South Dakota with extra peace of mind

Find flexible getaways

Keep an eye out for flexible ticket options to South Dakota. If you go for a flexible plane ticket, you won’t lose out if your flight is cancelled or needs to be changed.

Book spotless stays

Check out the hotels in South Dakota with sparkling 5/5 cleanliness ratings, or bag a room with free cancellation.

Get insured

Choose travel cost protection that covers against any unexpected hiccups before or during your trip. With the right travel insurance, you won’t lose out on money if your flights to South Dakota are changed or cancelled or your trip is cut short.

Frequently asked questions

Which airlines fly direct to South Dakota?

Currently, there are no airlines that fly direct to South Dakota. But we found flights with one or more stops from 644 €.

Which is the cheapest airline to fly to South Dakota with?

Currently, Delta offers the cheapest flight tickets to South Dakota.

How much is the cheapest flight ticket to South Dakota?

We looked at upcoming return flights to South Dakota departing over the next 12 months and found that Dublin Airport to Sioux Falls Airport for 644 € is the best price.

What is the cheapest month to fly to South Dakota?

The cheapest month to fly to Sioux Falls is currently January. The cheapest month to fly to Watertown is currently September. The cheapest month to fly to Rapid City Regional is currently October. And the cheapest month to fly to Aberdeen is currently September.

What is the cheapest day to fly to South Dakota?

The cheapest day to fly to Sioux Falls is currently Thursday, 8 January 2026. The cheapest day to fly to Rapid City Regional is currently Thursday, 2 October 2025. The cheapest day to fly to Watertown is currently Saturday, 13 September 2025. And the cheapest day to fly to Aberdeen is currently Thursday, 11 September 2025.

Where's cheapest to fly into in South Dakota?

If you're flying from Ireland, the cheapest city in South Dakota to fly into is Sioux Falls. The cheapest airport serving Sioux Falls at the moment is Sioux Falls Airport.