How long is the flight from South Dakota to Idaho?

Flight times from South Dakota to Idaho vary, but if you’re flying out of Rapid City and flying into Boise (one of the most popular routes), then the duration is 4h 40m on average. Another popular route from South Dakota to Idaho is flying from Sioux Falls to Boise, which will take roughly 4h 59m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

Prices for flights from South Dakota to Idaho are updated daily.

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

The number of operators available for flights from South Dakota to Idaho is 2 as of September 2026.

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

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 Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$284 Cheap Flights from South Dakota to Idaho in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from South Dakota to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 1:28 pmRAP Rapid City-IDA Idaho Falls Fanning Field

6h 28m1 stop Denver Intl

5:30 pm - 10:30 pmIDA Idaho Falls Fanning Field-RAP Rapid City

5h 00m1 stop Denver Intl

$319United Airlines

Wed, Nov 4 - Sun, Nov 8

5:00 am - 9:53 amRAP Rapid City-IDA Idaho Falls Fanning Field

4h 53m1 stop Denver Intl

4:30 pm - 8:43 pmIDA Idaho Falls Fanning Field-RAP Rapid City

4h 13m1 stop Denver Intl

$334United Airlines

Fri, Oct 16 - Sat, Oct 31

9:32 am - 1:28 pmFSD Sioux Falls Joe Foss Field-IDA Idaho Falls Fanning Field

4h 56m1 stop Denver Intl

2:35 pm - 8:04 pmIDA Idaho Falls Fanning Field-FSD Sioux Falls Joe Foss Field

4h 29m1 stop Denver Intl

$339United Airlines

Tue, Oct 27 - Tue, Nov 3

6:00 am - 1:28 pmFSD Sioux Falls Joe Foss Field-IDA Idaho Falls Fanning Field

8h 28m2 stops Chicago O'Hare Intl Denver Intl

2:35 pm - 8:04 pmIDA Idaho Falls Fanning Field-FSD Sioux Falls Joe Foss Field

4h 29m1 stop Denver Intl

$344United Airlines

Tue, Oct 27 - Tue, Nov 3

5:00 pm - 11:59 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

7h 59m1 stop Minneapolis St Paul

5:30 am - 12:17 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

5h 47m1 stop Minneapolis St Paul

$349Delta

Fri, Oct 30 - Sat, Nov 14

6:00 am - 1:52 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

8h 52m1 stop Dallas/Fort Worth

6:06 am - 1:56 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

6h 50m1 stop Phoenix Sky Harbor Intl

$349American Airlines

Thu, Nov 26 - Wed, Dec 2

8:05 am - 1:22 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

6h 17m1 stop Phoenix Sky Harbor Intl

2:03 pm - 11:49 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

8h 46m1 stop Phoenix Sky Harbor Intl

$349American Airlines

Fri, Oct 30 - Sat, Nov 14

8:00 am - 1:23 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

6h 23m1 stop Phoenix Sky Harbor Intl

12:18 pm - 8:53 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

7h 35m1 stop Dallas/Fort Worth

$349American Airlines

Wed, Nov 18 - Mon, Nov 23

6:45 am - 12:33 pmRAP Rapid City-BOI Boise Air Term. Gowen Fld

5h 48m1 stop Minneapolis St Paul

5:30 am - 1:43 pmBOI Boise Air Term. Gowen Fld-RAP Rapid City

8h 13m1 stop Minneapolis St Paul

$354Delta

Wed, Nov 11 - Sun, Nov 15

8:30 am - 5:59 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

10h 29m2 stops Minneapolis St Paul Salt Lake City

3:00 pm - 11:03 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

7h 03m1 stop Minneapolis St Paul

$379Delta

Fri, Nov 6 - Sat, Nov 7

Cheap last minute flights

Enter your travel dates to find the best prices.

3:03 pm - 10:58 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

8h 55m1 stop Chicago O'Hare Intl

2:44 pm - 8:40 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

4h 56m1 stop Denver Intl

$430United Airlines

Sat, Oct 3 - Sat, Oct 17

6:00 am - 12:58 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

7h 58m2 stops Denver Intl San Francisco

5:30 pm - 11:44 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

5h 14m1 stop Denver Intl

$435United Airlines

Sat, Oct 3 - Sat, Oct 17

5:04 pm - 9:35 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

5h 31m1 stop Denver Intl

5:30 pm - 11:44 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

5h 14m1 stop Denver Intl

$509United Airlines

Fri, Oct 2 - Mon, Oct 5

1:46 pm - 11:59 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

11h 13m2 stops Denver Intl San Francisco

5:00 am - 10:50 amBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

4h 50m1 stop Denver Intl

$564United Airlines

Fri, Oct 2 - Mon, Oct 5

9:42 am - 7:29 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

10h 47m2 stops Denver Intl San Francisco

10:35 am - 11:11 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

11h 36m2 stops Denver Intl Chicago O'Hare Intl

$588United Airlines

Sat, Oct 3 - Sat, Oct 17

6:30 am - 1:00 pmRAP Rapid City-BOI Boise Air Term. Gowen Fld

6h 30m1 stop Dallas/Fort Worth

2:41 pm - 9:56 pmBOI Boise Air Term. Gowen Fld-RAP Rapid City

7h 15m1 stop Dallas/Fort Worth

$676American Airlines

Sat, Oct 3 - Mon, Oct 5

8:43 pm - 1:55 pmRAP Rapid City-BOI Boise Air Term. Gowen Fld

17h 12m2 stops Phoenix-Mesa Gateway Las Vegas Harry Reid Intl

1:30 pm - 8:59 pmBOI Boise Air Term. Gowen Fld-RAP Rapid City

7h 29m1 stop Phoenix-Mesa Gateway

$764Multiple Airlines

Sat, Oct 3 - Mon, Oct 5

1:46 pm - 11:59 pmFSD Sioux Falls Joe Foss Field-BOI Boise Air Term. Gowen Fld

11h 13m2 stops Denver Intl San Francisco

6:50 pm - 5:56 pmBOI Boise Air Term. Gowen Fld-FSD Sioux Falls Joe Foss Field

22h 06m2 stops San Francisco Chicago O'Hare Intl

$843United Airlines

Fri, Oct 2 - Mon, Oct 5

6:30 am - 5:03 pmRAP Rapid City-BOI Boise Air Term. Gowen Fld

10h 33m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:00 am - 9:56 pmBOI Boise Air Term. Gowen Fld-RAP Rapid City

15h 56m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$1,277American Airlines

Sat, Oct 3 - Mon, Oct 5

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from South Dakota to Idaho

Our best Delta deals on South Dakota to Idaho flight tickets

Delta

Oct 30

FSD5:00 pmSioux Falls Joe Foss Field

7h 59m

1 stop

BOI11:59 pmBoise Air Term. Gowen Fld

Nov 14

BOI5:30 amBoise Air Term. Gowen Fld

5h 47m

1 stop

FSD12:17 pmSioux Falls Joe Foss Field

$349

Delta

Nov 11

RAP6:45 amRapid City

5h 48m

1 stop

BOI12:33 pmBoise Air Term. Gowen Fld

Nov 15

BOI5:30 amBoise Air Term. Gowen Fld

8h 13m

1 stop

RAP1:43 pmRapid City

$354

Delta

Nov 6

FSD8:30 amSioux Falls Joe Foss Field

10h 29m

2 stops

BOI5:59 pmBoise Air Term. Gowen Fld

Nov 7

BOI3:00 pmBoise Air Term. Gowen Fld

7h 03m

1 stop

FSD11:03 pmSioux Falls Joe Foss Field

$379

United Airlines flights from South Dakota to Idaho

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

United Airlines

Nov 4

RAP7:00 amRapid City

6h 28m

1 stop

IDA1:28 pmIdaho Falls Fanning Field

Nov 8

IDA5:30 pmIdaho Falls Fanning Field

5h 00m

1 stop

RAP10:30 pmRapid City

$319

United Airlines

Oct 16

RAP5:00 amRapid City

4h 53m

1 stop

IDA9:53 amIdaho Falls Fanning Field

Oct 31

IDA4:30 pmIdaho Falls Fanning Field

4h 13m

1 stop

RAP8:43 pmRapid City

$334

United Airlines

Oct 27

FSD9:32 amSioux Falls Joe Foss Field

4h 56m

1 stop

IDA1:28 pmIdaho Falls Fanning Field

Nov 3

IDA2:35 pmIdaho Falls Fanning Field

4h 29m

1 stop

FSD8:04 pmSioux Falls Joe Foss Field

$339

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CityIdaho Falls

RAP Rapid City - IDA Idaho Falls Fanning Field

RAPIDA

Rapid City

Wed 11/4

7:00 am-1:28 pm

1 stop6h 28m

Idaho Falls Fanning Field

Sun 11/8

5:30 pm-10:30 pm

1 stop5h 00m

$319

Quickest round-trip

Rapid CityIdaho Falls

RAP Rapid City - IDA Idaho Falls Fanning Field

RAPIDA

Rapid City

Fri 10/16

5:00 am-9:53 am

1 stop4h 53m

Idaho Falls Fanning Field

Sat 10/31

4:30 pm-8:43 pm

1 stop4h 13m

$334

Sioux FallsIdaho Falls

FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field

FSDIDA

Sioux Falls Joe Foss Field

Tue 10/27

9:32 am-1:28 pm

1 stop4h 56m

Idaho Falls Fanning Field

Tue 11/3

2:35 pm-8:04 pm

1 stop4h 29m

$339

Sioux FallsIdaho Falls

FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field

FSDIDA

Sioux Falls Joe Foss Field

Tue 10/27

6:00 am-1:28 pm

2 stops8h 28m

Idaho Falls Fanning Field

Tue 11/3

2:35 pm-8:04 pm

1 stop4h 29m

$344

Sioux FallsBoise

FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld

FSDBOI

Sioux Falls Joe Foss Field

Fri 10/30

5:00 pm-11:59 pm

1 stop7h 59m

Boise Air Term. Gowen Fld

Sat 11/14

5:30 am-12:17 pm

1 stop5h 47m

$349

Sioux FallsBoise

FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld

FSDBOI

Sioux Falls Joe Foss Field

Thu 11/26

6:00 am-1:52 pm

1 stop8h 52m

Boise Air Term. Gowen Fld

Wed 12/2

6:06 am-1:56 pm

1 stop6h 50m

$349

Sioux FallsBoise

FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld

FSDBOI

Sioux Falls Joe Foss Field

Fri 10/30

8:05 am-1:22 pm

1 stop6h 17m

Boise Air Term. Gowen Fld

Sat 11/14

2:03 pm-11:49 pm

1 stop8h 46m

$349

Sioux FallsBoise

FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld

FSDBOI

Sioux Falls Joe Foss Field

Wed 11/18

8:00 am-1:23 pm

1 stop6h 23m

Boise Air Term. Gowen Fld

Mon 11/23

12:18 pm-8:53 pm

1 stop7h 35m

$349

Rapid CityBoise

RAP Rapid City - BOI Boise Air Term. Gowen Fld

RAPBOI

Rapid City

Wed 11/11

6:45 am-12:33 pm

1 stop5h 48m

Boise Air Term. Gowen Fld

Sun 11/15

5:30 am-1:43 pm

1 stop8h 13m

$354

Sioux FallsBoise

FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld

FSDBOI

Sioux Falls Joe Foss Field

Fri 11/6

8:30 am-5:59 pm

2 stops10h 29m

Boise Air Term. Gowen Fld

Sat 11/7

3:00 pm-11:03 pm

1 stop7h 03m

$379

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 South Dakota to Idaho

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

Other information

What is the cheapest month to fly to Idaho?

In general, June is the cheapest month to fly from South Dakota to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. If you don’t want to visit Idaho in June, then you should wait until February to fly from South Dakota, when ticket prices are also cheap, with an average price of $343.

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

You could potentially save up to 24% on your flight if you consider stops on a South Dakota to Idaho flight.

Cheap South Dakota to Idaho flight deals and tips

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

Best Price Found	$284
Fastest flight time	4h 07m
Direct flights	None

The best one-way flight to Idaho from South Dakota in the past 72 hours is $284. The best round-trip flight deal from South Dakota to Idaho found on momondo in the last 72 hours is $319.

The fastest flight from South Dakota to Idaho takes 4h 07m

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

Search flight deals

Frequently asked questions about flying from South Dakota to Idaho

When did momondo last update prices for flights from South Dakota to Idaho?
Prices for flights from South Dakota to Idaho are updated daily.
How many operators does momondo search for flights from South Dakota to Idaho?
The number of operators available for flights from South Dakota to Idaho is 2 as of September 2026.
How old do you have to be to fly from South Dakota to Idaho?
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 Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to Idaho

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 10,261 reviews		Search United Airlines flights
Delta	PriceFrom $278	Free Cancellation	Rating 7.8 8,608 reviews		Search Delta flights

Why use momondo?

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

Finding the right flight to Idaho from South Dakota is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho quick and easy, saving you time and money.

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

All flight searches from South Dakota to Idaho on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for South Dakota to Idaho 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 Idaho right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho from South Dakota are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.