What airlines fly to South Dakota?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to South Dakota from Idaho according to our data. United Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to South Dakota?

United Airlines, Delta, and Allegiant Air are the most popular carriers operating from Idaho to South Dakota

When did momondo last update prices for flights from Idaho to South Dakota?

Prices for flights from Idaho to South Dakota refresh daily.

How many operators does momondo search for flights from Idaho to South Dakota?

There are 3 operators available for flights from Idaho to South Dakota as of June 2026.

How old do you have to be to fly from Idaho to South Dakota?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The required travel and health documents for your South Dakota trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at South Dakota. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$269 Cheap Flights from Idaho to South Dakota in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to South Dakota

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:46 pm - 10:33 pm

BOI

RAP

4h 47m

1 stop

5:00 am - 9:53 am

RAP

BOI

4h 53m

1 stop

$309United Airlines

Sat, Jul 25 - Sat, Aug 1

4:13 pm - 11:53 pm

GEG

FSD

5h 40m

1 stop

9:30 am - 3:11 pm

FSD

GEG

7h 41m

1 stop

$319United Airlines

Tue, Jul 21 - Tue, Jul 28

2:53 pm - 10:37 pm

BOI

RAP

7h 44m

1 stop

6:48 am - 1:42 pm

RAP

BOI

6h 54m

1 stop

$324Delta

Wed, Aug 19 - Sun, Aug 23

4:14 pm - 10:25 pm

IDA

RAP

6h 11m

1 stop

5:00 am - 9:50 am

RAP

IDA

4h 50m

1 stop

$325United Airlines

Fri, Jul 10 - Tue, Jul 14

2:50 pm - 10:26 pm

BOI

RAP

7h 36m

1 stop

6:48 am - 1:42 pm

RAP

BOI

6h 54m

1 stop

$339Delta

Tue, Jul 21 - Sun, Aug 16

1:55 pm - 11:48 pm

BOI

FSD

8h 53m

1 stop

8:30 am - 1:24 pm

FSD

BOI

5h 54m

1 stop

$342American Airlines

Fri, Aug 14 - Wed, Aug 19

5:30 am - 12:38 pm

BOI

FSD

6h 08m

1 stop

4:28 pm - 11:59 pm

FSD

BOI

8h 31m

2 stops

$347Delta

Fri, Aug 14 - Wed, Aug 19

5:00 am - 12:29 pm

GEG

RAP

6h 29m

1 stop

11:20 am - 3:13 pm

RAP

GEG

4h 53m

1 stop

$352United Airlines

Sun, Jul 26 - Sun, Aug 2

1:55 pm - 11:48 pm

BOI

FSD

8h 53m

1 stop

8:30 am - 1:24 pm

FSD

BOI

5h 54m

1 stop

$375American Airlines

Fri, Aug 14 - Wed, Aug 19

1:57 pm - 11:57 pm

BOI

FSD

9h 00m

1 stop

5:34 pm - 11:21 pm

FSD

BOI

6h 47m

1 stop

$400American Airlines

Wed, Jul 15 - Tue, Jul 21

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United Airlines flights from Idaho to South Dakota

Our best United Airlines deals on Idaho to South Dakota flight tickets

United Airlines

Jul 25

BOI5:46 pmBoise Air Term. Gowen Fld

4h 47m

1 stop

RAP10:33 pmRapid City

Aug 1

RAP5:00 amRapid City

4h 53m

1 stop

BOI9:53 amBoise Air Term. Gowen Fld

$309

United Airlines

Jul 21

GEG4:13 pmSpokane

5h 40m

1 stop

FSD11:53 pmSioux Falls Joe Foss Field

Jul 28

FSD9:30 amSioux Falls Joe Foss Field

7h 41m

1 stop

GEG3:11 pmSpokane

$319

United Airlines

Jul 10

IDA4:14 pmIdaho Falls Fanning Field

6h 11m

1 stop

RAP10:25 pmRapid City

Jul 14

RAP5:00 amRapid City

4h 50m

1 stop

IDA9:50 amIdaho Falls Fanning Field

$325

American Airlines flights from Idaho to South Dakota

Our best American Airlines deals on Idaho to South Dakota flight tickets

American Airlines

Aug 14

BOI1:55 pmBoise Air Term. Gowen Fld

8h 53m

1 stop

FSD11:48 pmSioux Falls Joe Foss Field

Aug 19

FSD8:30 amSioux Falls Joe Foss Field

5h 54m

1 stop

BOI1:24 pmBoise Air Term. Gowen Fld

$342

American Airlines

Aug 14

BOI1:55 pmBoise Air Term. Gowen Fld

8h 53m

1 stop

FSD11:48 pmSioux Falls Joe Foss Field

Aug 19

FSD8:30 amSioux Falls Joe Foss Field

5h 54m

1 stop

BOI1:24 pmBoise Air Term. Gowen Fld

$375

American Airlines

Jul 2

GEG3:00 pmSpokane

6h 57m

1 stop

FSD11:57 pmSioux Falls Joe Foss Field

Aug 26

FSD12:57 pmSioux Falls Joe Foss Field

9h 45m

1 stop

GEG8:42 pmSpokane

$399

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Sat 7/25

5:46 pm-10:33 pm

1 stop4h 47m

Rapid City

Sat 8/1

5:00 am-9:53 am

1 stop4h 53m

$309

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Tue 7/21

4:13 pm-11:53 pm

1 stop5h 40m

Sioux Falls Joe Foss Field

Tue 7/28

9:30 am-3:11 pm

1 stop7h 41m

$319

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Wed 8/19

2:53 pm-10:37 pm

1 stop7h 44m

Rapid City

Sun 8/23

6:48 am-1:42 pm

1 stop6h 54m

$324

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 7/10

4:14 pm-10:25 pm

1 stop6h 11m

Rapid City

Tue 7/14

5:00 am-9:50 am

1 stop4h 50m

$325

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 7/21

2:50 pm-10:26 pm

1 stop7h 36m

Rapid City

Sun 8/16

6:48 am-1:42 pm

1 stop6h 54m

$339

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 8/14

1:55 pm-11:48 pm

1 stop8h 53m

Sioux Falls Joe Foss Field

Wed 8/19

8:30 am-1:24 pm

1 stop5h 54m

$342

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 8/14

5:30 am-12:38 pm

1 stop6h 08m

Sioux Falls Joe Foss Field

Wed 8/19

4:28 pm-11:59 pm

2 stops8h 31m

$347

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Sun 7/26

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Sun 8/2

11:20 am-3:13 pm

1 stop4h 53m

$352

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 8/14

1:55 pm-11:48 pm

1 stop8h 53m

Sioux Falls Joe Foss Field

Wed 8/19

8:30 am-1:24 pm

1 stop5h 54m

$375

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Wed 7/15

1:57 pm-11:57 pm

1 stop9h 00m

Sioux Falls Joe Foss Field

Tue 7/21

5:34 pm-11:21 pm

1 stop6h 47m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to South Dakota

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

What is the cheapest month to fly to South Dakota?

The month of March is, on average, the cheapest month to fly to South Dakota from Idaho, with most prices found around $224. If you aren’t able to travel to South Dakota during the month of March, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $248.

Can stopping save me money on Idaho to South Dakota flights?

You could potentially save up to 69% on your flight if you consider stops on a Idaho to South Dakota flight.

Cheap Idaho to South Dakota flight deals and tips

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

Fastest flight time	4h 13m
Direct flights	None

The fastest flight from Idaho to South Dakota takes 4h 13m

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

Search flight deals

Frequently asked questions about flying from Idaho to South Dakota

When did momondo last update prices for flights from Idaho to South Dakota?
Prices for flights from Idaho to South Dakota refresh daily.
How many operators does momondo search for flights from Idaho to South Dakota?
There are 3 operators available for flights from Idaho to South Dakota as of June 2026.
How old do you have to be to fly from Idaho to South Dakota?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The required travel and health documents for your South Dakota trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at South Dakota. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to South Dakota

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.1 11,768 reviews	Search American Airlines flights
Delta	PriceFrom $250	Free Cancellation	Rating 7.8 8,449 reviews	Search Delta flights
United Airlines	PriceFrom $284	Free Cancellation	Rating 7.4 9,894 reviews	Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Idaho to South Dakota flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to South Dakota that suits you.

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

Flights from Idaho to South Dakota with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to South Dakota from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to South Dakota, momondo offers a useful price alert feature which will track prices for flights to South Dakota from Idaho and alert you when they change.