$126 Find Cheap Flights from South Dakota to Idaho

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Good to know

Low season

January

High season

July

Cheapest flight

$126
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Sioux Falls to Spokane

FAQs for booking flights from South Dakota to Idaho

  • How does KAYAK find such low prices on flights from South Dakota to Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from South Dakota to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from South Dakota to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from South Dakota to Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from South Dakota to Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from South Dakota to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from South Dakota to Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from South Dakota to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Idaho?

    Based on KAYAK data, the cheapest day to fly to Idaho is Saturday where round-trip tickets can be as cheap as $354. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $510 on average.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally at night, when round-trip flights cost $321 on average. Morning departures are around 25% more expensive than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $484.

  • What is the cheapest month to fly from South Dakota to Idaho?

    The cheapest month for flights from South Dakota to Idaho is October, when tickets cost $258 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $692 and $510 respectively.

  • How long is the flight to Idaho?

    An average nonstop flight from South Dakota to Idaho takes 6h 18m, covering a distance of 779 miles. The shortest route is Sioux Falls (FSD) to Boise (BOI) with an average flight time of 4h 52m.

  • What are the most popular destinations in Idaho?

    Based on KAYAK flight searches, the most popular destination is Boise (51% of total searches to Idaho). The next most popular destinations are Spokane (26%) and Jackson (19%). Searches for flights to Pocatello (1%), to Hailey (1%) and to Idaho Falls (1%) are also popular.

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Top airlines flying from South Dakota to Idaho

Need help choosing which airline to fly with from South Dakota to Idaho? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7920 reviews
7.3Food
8.5Crew
7.9Comfort
8.2Boarding
7.9Entertainment
Airline reviews

Delta flight was on time, seats were comfortable, and crew was nice.

8.0 ExcellentAnonymous, Apr 2025LAX - DEN
Read more Delta reviews

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

Book cheap flights from South Dakota to Idaho

Recent round-trip flight deals

8/22Fri
1 stopDelta
6h 49mRAP-BOI
8/26Tue
1 stopDelta
7h 52mBOI-RAP
$249
6/17Tue
1 stopDelta
5h 12mFSD-GEG
6/24Tue
1 stopDelta
7h 22mGEG-FSD
$251
9/3Wed
1 stopAmerican Airlines
7h 14mFSD-GEG
9/7Sun
1 stopAmerican Airlines
8h 20mGEG-FSD
$255
5/14Wed
1 stopDelta
5h 23mFSD-BOI
5/19Mon
1 stopDelta
5h 29mBOI-FSD
$255
5/7Wed
2 stopsUnited Airlines
11h 21mFSD-BOI
5/11Sun
1 stopUnited Airlines
4h 42mBOI-FSD
$322
5/14Wed
2 stopsUnited Airlines
11h 21mFSD-BOI
5/19Mon
1 stopUnited Airlines
5h 21mBOI-FSD
$330
5/5Mon
2 stopsAlaska Airlines
23h 23mFSD-GEG
5/12Mon
2 stopsAlaska Airlines
16h 07mGEG-FSD
$379
5/9Fri
1 stopAmerican Airlines
7h 49mRAP-GEG
5/11Sun
1 stopAmerican Airlines
9h 30mGEG-RAP
$390
5/14Wed
2 stops
29h 14mFSD-BOI
5/19Mon
1 stop
20h 51mBOI-FSD
$397
5/14Wed
2 stops
29h 14mFSD-BOI
5/19Mon
1 stop
20h 51mBOI-FSD
$406

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Recent one-way flight deals

7/12Sat
1 stopDelta
8h 09mFSD-GEG
$126
5/13Tue
1 stopDelta
5h 23mFSD-BOI
$201
5/13Tue
2 stopsDelta
7h 54mFSD-BOI
$206
7/11Fri
1 stopDelta
5h 26mFSD-GEG
$230
7/12Sat
2 stopsDelta
11h 18mFSD-GEG
$245
7/11Fri
2 stopsDelta
9h 24mFSD-GEG
$324

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Last minute flights from South Dakota to Idaho

Last minute flight, train and bus deals

4/26Sat
multi-stopUnited Airlines
5h 07mFSD-BOI
4/28Mon
multi-stopUnited Airlines
5h 19mBOI-FSD
$459
4/26Sat
multi-stopUnited Airlines
8h 58mFSD-BOI
4/28Mon
multi-stopUnited Airlines
4h 45mBOI-FSD
$464
4/26Sat
multi-stopUnited Airlines
8h 58mFSD-BOI
4/28Mon
multi-stopUnited Airlines
9h 13mBOI-FSD
$530
4/26Sat
multi-stopUnited Airlines
7h 18mFSD-JAC
4/28Mon
multi-stopUnited Airlines
4h 37mJAC-FSD
$549
4/26Sat
multi-stopUnited Airlines
10h 38mFSD-JAC
4/28Mon
multi-stopUnited Airlines
6h 29mJAC-FSD
$554
4/26Sat
multi-stopUnited Airlines
10h 38mFSD-JAC
4/28Mon
multi-stopUnited Airlines
10h 32mJAC-FSD
$559

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Everything you need to know for your flight to Idaho

Cabin class types available on flights to South Dakota

Cabin classes available on flights to South Dakota. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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