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Cheap flights from Idaho Falls to South Dakota from $289

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to South Dakota departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho Falls to South Dakota

Cheap round-trip flights

United Airlines Logo
5:00 am - 9:06 amIDA-RAP
4h 06m1 stop
United Airlines Logo
5:30 am - 9:47 amRAP-IDA
4h 17m1 stop
$289United Airlines
Find Deal
Wed, Aug 27 - Mon, Sep 1
United Airlines Logo
6:03 pm - 10:00 pmIDA-RAP
3h 57m1 stop
United Airlines Logo
5:30 am - 9:47 amRAP-IDA
4h 17m1 stop
$404United Airlines
Find Deal
Sun, Aug 17 - Sun, Aug 24
United Airlines Logo
4:15 pm - 9:59 pmIDA-RAP
5h 44m1 stop
United Airlines Logo
10:15 am - 3:29 pmRAP-IDA
5h 14m1 stop
$507United Airlines
Find Deal
Mon, Aug 25 - Thu, Aug 28
United Airlines Logo
5:56 pm - 9:59 pmIDA-RAP
4h 03m1 stop
United Airlines Logo
1:35 pm - 3:11 pmRAP-IDA
25h 36m2 stops
$969United Airlines
Find Deal
Wed, Aug 27 - Mon, Sep 1
Delta Logo
3:00 pm - 10:32 pmIDA-RAP
7h 32m2 stops
Delta Logo
6:25 am - 6:11 pmRAP-IDA
11h 46m2 stops
$1,325Delta
Find Deal
Mon, Aug 25 - Thu, Aug 28
Delta Logo
3:00 pm - 10:32 pmIDA-RAP
7h 32m2 stops
Delta Logo
6:25 am - 6:11 pmRAP-IDA
11h 46m2 stops
$1,591Delta
Find Deal
Wed, Aug 27 - Mon, Sep 1

United Airlines flights from Idaho Falls to South Dakota

Our best United Airlines deals on Idaho Falls to South Dakota flight tickets
United Airlines
Aug 27
IDA5:00 amIdaho Falls Fanning Field
4h 06m
1 stop
RAP9:06 amRapid City
Sep 1
RAP5:30 amRapid City
4h 17m
1 stop
IDA9:47 amIdaho Falls Fanning Field
$289
Find similar
United Airlines
Aug 17
IDA6:03 pmIdaho Falls Fanning Field
3h 57m
1 stop
RAP10:00 pmRapid City
Aug 24
RAP5:30 amRapid City
4h 17m
1 stop
IDA9:47 amIdaho Falls Fanning Field
$404
Find similar
United Airlines
Aug 25
IDA4:15 pmIdaho Falls Fanning Field
5h 44m
1 stop
RAP9:59 pmRapid City
Aug 28
RAP10:15 amRapid City
5h 14m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
$507
Find similar

Delta flights from Idaho Falls to South Dakota

Our best Delta deals on Idaho Falls to South Dakota flight tickets
Delta
Aug 25
IDA3:00 pmIdaho Falls Fanning Field
7h 32m
2 stops
RAP10:32 pmRapid City
Aug 28
RAP6:25 amRapid City
11h 46m
2 stops
IDA6:11 pmIdaho Falls Fanning Field
$1,325
Find similar
Delta
Aug 27
IDA3:00 pmIdaho Falls Fanning Field
7h 32m
2 stops
RAP10:32 pmRapid City
Sep 1
RAP6:25 amRapid City
11h 46m
2 stops
IDA6:11 pmIdaho Falls Fanning Field
$1,591
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Idaho Falls to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 8/27

5:00 am-9:06 am

1 stop4h 06m

Rapid City

Mon 9/1

5:30 am-9:47 am

1 stop4h 17m

$289

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 8/17

6:03 pm-10:00 pm

1 stop3h 57m

Rapid City

Sun 8/24

5:30 am-9:47 am

1 stop4h 17m

$404

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 8/25

4:15 pm-9:59 pm

1 stop5h 44m

Rapid City

Thu 8/28

10:15 am-3:29 pm

1 stop5h 14m

$507

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 8/27

5:56 pm-9:59 pm

1 stop4h 03m

Rapid City

Mon 9/1

1:35 pm-3:11 pm

2 stops25h 36m

$969

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 8/25

3:00 pm-10:32 pm

2 stops7h 32m

Rapid City

Thu 8/28

6:25 am-6:11 pm

2 stops11h 46m

$1,325

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 8/27

3:00 pm-10:32 pm

2 stops7h 32m

Rapid City

Mon 9/1

6:25 am-6:11 pm

2 stops11h 46m

$1,591

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 10/17

2:35 pm-8:34 pm

1 stop5h 59m

$402

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 10/17

10:50 am-10:13 am

2 stops23h 23m

$415

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 10/17

5:00 am-10:13 am

3 stops29h 13m

$496

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to South Dakota from

How to get the cheapest flight ticket from Idaho Falls 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

What is the cheapest time of day to depart on your flight to South Dakota?

The cheapest time of day to fly to South Dakota is at noon when flights can be purchased for as low as $256. In the afternoon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $410 per ticket.

Cheap Idaho Falls to South Dakota flight deals and tips

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

Best Price Found

$402

Fastest flight time

3h 57m

Direct flights

None

Airports in South Dakota

1 airport
The best one-way flight to South Dakota from Idaho Falls in the past 72 hours is $402. The best round-trip flight deal from Idaho Falls to South Dakota found on momondo in the last 72 hours is $289.
The fastest flight from Idaho Falls to South Dakota takes 3h 57m
There are no direct flights from Idaho Falls to South Dakota. Popular non-direct route for this connection is Idaho Falls Fanning Field Airport - Rapid City Airport.
There is 1 airport near South Dakota: Rapid City (RAP)
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  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to South Dakota?

    Prices for flights from Idaho Falls Fanning Field Airport to South Dakota are refreshed on a daily basis.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to South Dakota?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to South Dakota?

    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 Idaho Falls Fanning Field Airport to South Dakota.

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

    The travel and health documents you'll need for your trip to South Dakota 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 South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho Falls to South Dakota

Compare and see reviews for airlines that fly from Idaho Falls to South Dakota with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to South Dakota from Idaho Falls 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 South Dakota quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Idaho Falls to South Dakota flights to just show those with flexible booking policies.

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

Once all potential Idaho Falls to South Dakota flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Idaho Falls to South Dakota now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to South Dakota and let you know when they change.

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