How long is the flight from Idaho Falls to South Dakota?

United Airlines and Allegiant Air can get you from Idaho Falls to South Dakota in just under 4h 13m. Your travel time can differ by up to 9h 39m. Airlines will cover a distance of 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What is the cheapest time of day to fly from IDA to SD?

When flying from Idaho Falls to South Dakota, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Idaho Falls to South Dakota?

Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to South Dakota from Idaho Falls.

Can I find deals for flights from Idaho Falls to South Dakota that include hotel bookings?

Yes. In addition to deals on Idaho Falls to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Idaho Falls to South Dakota?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to South Dakota.

Can I find deals for business class flights from Idaho Falls to South Dakota?

Yes. Cheapflights offers flight deals from Idaho Falls to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$309+ Flights from Idaho Falls to South Dakota

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Cheap flight deals from Idaho Falls to South Dakota

Cheapest flights from Idaho Falls to South Dakota
Explore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Tue 12/3010:45 amIDA - RAP

1 stop6h 15mUnited Airlines

Sat 1/33:35 pmRAP - IDA

1 stop7h 24mUnited Airlines

Deal found 12/15

$363

Tue 12/307:11 pmIDA - RAP

1 stop13h 06mMultiple Airlines

Sat 1/311:05 amRAP - IDA

2 stops49h 31mMultiple Airlines

Deal found 12/15

$747

Best flights from Idaho Falls to South Dakota
Discover carefully curated flight deals from Idaho Falls to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Wed 1/144:19 pmIDA - RAP

1 stop6h 10mUnited Airlines

Sat 1/177:00 amRAP - IDA

1 stop6h 30mUnited Airlines

Deal found 12/12

$309

Fri 1/26:35 pmIDA - RAP

1 stop13h 52mAllegiant Air

Mon 1/52:36 pmRAP - IDA

1 stop27h 18mAllegiant Air

Deal found 12/14

$547

Tue 12/3010:45 amIDA - RAP

1 stop6h 15mUnited Airlines

Sat 1/33:35 pmRAP - IDA

1 stop7h 24mUnited Airlines

Deal found 12/15

$363

Tue 12/307:11 pmIDA - RAP

1 stop13h 06mMultiple Airlines

Sat 1/311:05 amRAP - IDA

2 stops49h 31mMultiple Airlines

Deal found 12/15

$747

Fri 1/24:57 pmIDA - RAP

2 stops17h 18mMultiple Airlines

Mon 1/52:36 pmRAP - IDA

1 stop27h 18mMultiple Airlines

Deal found 12/14

$855

Last-minute flights from Idaho Falls to South Dakota
Discover last-minute flight deals from Idaho Falls to South Dakota. Data last updated December 15, 2025 and is based on user searches.

Tue 12/3010:45 amIDA - RAP

1 stop6h 15mUnited Airlines

Sat 1/33:35 pmRAP - IDA

1 stop7h 24mUnited Airlines

Deal found 12/15

$363

Tue 12/307:11 pmIDA - RAP

1 stop13h 06mMultiple Airlines

Sat 1/311:05 amRAP - IDA

2 stops49h 31mMultiple Airlines

Deal found 12/15

$747

Fri 1/26:35 pmIDA - RAP

1 stop13h 52mAllegiant Air

Mon 1/52:36 pmRAP - IDA

1 stop27h 18mAllegiant Air

Deal found 12/14

$547

Fri 1/24:57 pmIDA - RAP

2 stops17h 18mMultiple Airlines

Mon 1/52:36 pmRAP - IDA

1 stop27h 18mMultiple Airlines

Deal found 12/14

$855

Wed 1/144:19 pmIDA - RAP

1 stop4h 13mUnited Airlines

Sat 1/1710:45 amRAP - IDA

1 stop4h 46mUnited Airlines

Deal found 12/14

$309

One-way flights from Idaho Falls to South Dakota
Search for one-way flight options from Idaho Falls to South Dakota. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Sat 12/207:11 pmIDA - RAP

1 stop19h 12mAllegiant Air

Deal found 12/13

$379

Sat 12/205:00 amIDA - RAP

2 stops29h 30mUnited Airlines

Deal found 12/13

$725

Find flight deals from Idaho Falls to South Dakota

Round-trip from	$309 (United Airlines)

From Idaho Falls Fanning Field to South Dakota

Search Deals

Cheapflights Fare Finder

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 1/14

4:19 pm-10:29 pm

1 stop6h 10m

Rapid City

Sat 1/17

7:00 am-1:30 pm

1 stop6h 30m

$309

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Tue 12/30

10:45 am-5:00 pm

1 stop6h 15m

Rapid City

Sat 1/3

3:35 pm-10:59 pm

1 stop7h 24m

$363

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 1/2

6:35 pm-8:27 am

1 stop13h 52m

Rapid City

Mon 1/5

2:36 pm-5:54 pm

1 stop27h 18m

$547

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Tue 12/30

7:11 pm-8:17 am

1 stop13h 06m

Rapid City

Sat 1/3

11:05 am-12:36 pm

2 stops49h 31m

$747

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 1/2

4:57 pm-10:15 am

2 stops17h 18m

Rapid City

Mon 1/5

2:36 pm-5:54 pm

1 stop27h 18m

$855

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 12/20

7:11 pm-2:23 pm

1 stop19h 12m

$379

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 12/20

5:00 am-10:30 am

2 stops29h 30m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Best time to book a flight from Idaho Falls to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Idaho Falls with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to South Dakota

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing South Dakota

See what other customers who have flown with United Airlines from Idaho Falls to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,092 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

What airport do you fly from for flights from Idaho Falls to South Dakota?
Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to South Dakota from Idaho Falls.
How long is the flight from Idaho Falls to South Dakota?
United Airlines and Allegiant Air can get you from Idaho Falls to South Dakota in just under 4h 13m. Your travel time can differ by up to 9h 39m. Airlines will cover a distance of 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Idaho Falls to South Dakota that include hotel bookings?
Yes. In addition to deals on Idaho Falls to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho Falls to South Dakota?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to South Dakota.
Can I find deals for business class flights from Idaho Falls to South Dakota?
Yes. Cheapflights offers flight deals from Idaho Falls to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Idaho Falls to South Dakota

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$228	Average$492	FlexibilityNo cancel fee	On-time69%

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$309+ Cheap flights from Idaho Falls (IDA) to South Dakota

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho Falls to South Dakota with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Idaho Falls to South Dakota

Cheapest flights from Idaho Falls to South DakotaExplore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Explore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Find flight deals from Idaho Falls to South Dakota

Keep the following information in mind while searching for Idaho Falls to South Dakota flight deals. Data was last updated December 15, 2025.

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho Falls to South Dakota that are best for you.

Best time to book a flight from Idaho Falls to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Idaho Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to South Dakota

Reviews of airlines servicing South Dakota

See what other customers who have flown with United Airlines from Idaho Falls to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Idaho Falls to South Dakota?

How long is the flight from Idaho Falls to South Dakota?

Can I find deals for flights from Idaho Falls to South Dakota that include hotel bookings?

How can I find direct flights from Idaho Falls to South Dakota?

Can I find deals for business class flights from Idaho Falls to South Dakota?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho Falls to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Idaho Falls to South Dakota

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Idaho Falls to South Dakota
Explore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.