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 74% 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, Allegiant Air, and Delta 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 March 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.

$211 Cheap Flights from Idaho to South Dakota in 2026

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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.

3:23 pm - 11:02 pm

BOI

FSD

6h 39m

1 stop

8:05 am - 2:26 pm

FSD

BOI

7h 21m

1 stop

$291Delta

Sat, Apr 25 - Wed, Apr 29

12:52 pm - 11:02 pm

BOI

FSD

9h 10m

2 stops

8:05 am - 2:26 pm

FSD

BOI

7h 21m

1 stop

$296Delta

Sat, Apr 25 - Wed, Apr 29

12:52 pm - 11:02 pm

BOI

FSD

9h 10m

2 stops

1:44 pm - 11:57 pm

FSD

BOI

11h 13m

2 stops

$301Delta

Sat, Apr 25 - Tue, Apr 28

3:23 pm - 11:02 pm

BOI

FSD

6h 39m

1 stop

8:05 am - 2:26 pm

FSD

BOI

7h 21m

1 stop

$315Delta

Thu, Apr 23 - Tue, Apr 28

2:15 pm - 10:25 pm

GEG

RAP

7h 10m

1 stop

3:55 pm - 9:05 pm

RAP

GEG

6h 10m

1 stop

$319Delta

Fri, Apr 10 - Tue, Apr 14

5:29 pm - 9:55 pm

BOI

RAP

4h 26m

1 stop

4:13 pm - 9:17 pm

RAP

BOI

5h 04m

1 stop

$329United Airlines

Fri, May 8 - Fri, May 15

2:37 pm - 7:02 pm

BOI

RAP

4h 25m

1 stop

2:47 pm - 9:22 pm

RAP

BOI

6h 35m

1 stop

$344United Airlines

Thu, Apr 16 - Sun, Apr 19

9:19 pm - 8:03 pm

GEG

FSD

20h 44m

1 stop

9:10 pm - 10:55 am

FSD

GEG

15h 45m

1 stop

$362Allegiant Air

Thu, May 7 - Sun, May 10

9:49 am - 10:42 am

IDA

RAP

24h 53m

1 stop

5:57 pm - 3:27 pm

RAP

IDA

21h 30m

1 stop

$605Allegiant Air

Sun, Apr 12 - Thu, Apr 16

9:49 am - 10:42 am

IDA

RAP

24h 53m

1 stop

5:57 pm - 9:31 pm

RAP

IDA

27h 34m

2 stops

$732Multiple Airlines

Sun, Apr 12 - Thu, Apr 16

American Airlines flights from Idaho to South Dakota

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

American Airlines

May 16

BOI2:14 pmBoise Air Term. Gowen Fld

8h 45m

1 stop

FSD11:59 pmSioux Falls Joe Foss Field

May 29

FSD7:00 amSioux Falls Joe Foss Field

8h 20m

1 stop

BOI2:20 pmBoise Air Term. Gowen Fld

$364

American Airlines

Apr 10

BOI1:53 pmBoise Air Term. Gowen Fld

7h 01m

1 stop

FSD9:54 pmSioux Falls Joe Foss Field

Apr 14

FSD2:40 pmSioux Falls Joe Foss Field

6h 38m

1 stop

BOI8:18 pmBoise Air Term. Gowen Fld

$369

American Airlines

Apr 3

BOI1:31 pmBoise Air Term. Gowen Fld

8h 24m

1 stop

FSD10:55 pmSioux Falls Joe Foss Field

Apr 7

FSD6:47 amSioux Falls Joe Foss Field

7h 02m

1 stop

BOI12:49 pmBoise Air Term. Gowen Fld

$445

Delta flights from Idaho to South Dakota

Our best Delta deals on Idaho to South Dakota flight tickets

Delta

Apr 25

BOI12:52 pmBoise Air Term. Gowen Fld

9h 10m

2 stops

FSD11:02 pmSioux Falls Joe Foss Field

May 5

FSD1:44 pmSioux Falls Joe Foss Field

7h 45m

1 stop

BOI8:29 pmBoise Air Term. Gowen Fld

$296

Delta

Apr 25

BOI12:52 pmBoise Air Term. Gowen Fld

9h 10m

2 stops

FSD11:02 pmSioux Falls Joe Foss Field

May 5

FSD1:44 pmSioux Falls Joe Foss Field

9h 12m

2 stops

BOI9:56 pmBoise Air Term. Gowen Fld

$301

Delta

Apr 10

GEG2:15 pmSpokane

7h 10m

1 stop

RAP10:25 pmRapid City

Apr 14

RAP3:55 pmRapid City

6h 10m

1 stop

GEG9:05 pmSpokane

$319

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Sat 4/25

3:23 pm-11:02 pm

1 stop6h 39m

Sioux Falls Joe Foss Field

Wed 4/29

8:05 am-2:26 pm

1 stop7h 21m

$291

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Sat 4/25

12:52 pm-11:02 pm

2 stops9h 10m

Sioux Falls Joe Foss Field

Wed 4/29

8:05 am-2:26 pm

1 stop7h 21m

$296

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Sat 4/25

12:52 pm-11:02 pm

2 stops9h 10m

Sioux Falls Joe Foss Field

Tue 4/28

1:44 pm-11:57 pm

2 stops11h 13m

$301

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Thu 4/23

3:23 pm-11:02 pm

1 stop6h 39m

Sioux Falls Joe Foss Field

Tue 4/28

8:05 am-2:26 pm

1 stop7h 21m

$315

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 4/10

2:15 pm-10:25 pm

1 stop7h 10m

Rapid City

Tue 4/14

3:55 pm-9:05 pm

1 stop6h 10m

$319

Quickest round-trip

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Fri 5/8

5:29 pm-9:55 pm

1 stop4h 26m

Rapid City

Fri 5/15

4:13 pm-9:17 pm

1 stop5h 04m

$329

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Thu 4/16

2:37 pm-7:02 pm

1 stop4h 25m

Rapid City

Sun 4/19

2:47 pm-9:22 pm

1 stop6h 35m

$344

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Thu 5/7

9:19 pm-8:03 pm

1 stop20h 44m

Sioux Falls Joe Foss Field

Sun 5/10

9:10 pm-10:55 am

1 stop15h 45m

$362

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 4/12

9:49 am-10:42 am

1 stop24h 53m

Rapid City

Thu 4/16

5:57 pm-3:27 pm

1 stop21h 30m

$605

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 4/12

9:49 am-10:42 am

1 stop24h 53m

Rapid City

Thu 4/16

5:57 pm-9:31 pm

2 stops27h 34m

$732

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 June is, on average, the cheapest month to fly to South Dakota from Idaho, with most prices found around $309. If you aren’t able to travel to South Dakota during the month of June, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $331.

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

You could potentially save up to 36% 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 20m
Direct flights	None

The fastest flight from Idaho to South Dakota takes 4h 20m

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

Search flight deals

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 March 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
Delta	PriceFrom $234	Free Cancellation	Rating 7.9 8,364 reviews	Search Delta flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.1 11,543 reviews	Search American Airlines flights
United Airlines	PriceFrom $280	Free Cancellation	Rating 7.4 9,525 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.