$126 Find Cheap Flights from Sioux Falls to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Idaho departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Idaho, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Idaho, as well as popular online travel agencies
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Cheap Flights from Sioux Falls to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$309
Hailey
Hailey1 stop$315
Spokane
Spokane1 stop$251
Boise
Boise1 stop$309
Hailey
Hailey1 stop$315
Spokane
Spokane1 stop$251

Book Cheap Sioux Falls to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux Falls to Idaho

Wed, Apr 15 - Tue, Apr 21
United Airlines Logo
4:57 pm - 9:11 pm
FSD
-
GEG
6h 14m
1 stop
United Airlines Logo
4:01 pm - 11:44 pm
GEG
-
FSD
5h 43m
1 stop
$251United Airlines
Wed, Mar 25 - Mon, Mar 30
Delta Logo
8:00 am - 1:10 pm
FSD
-
GEG
7h 10m
1 stop
Delta Logo
6:00 am - 12:53 pm
GEG
-
FSD
4h 53m
1 stop
$265Delta
Thu, Mar 26 - Sun, Mar 29
Delta Logo
8:00 am - 1:10 pm
FSD
-
GEG
7h 10m
1 stop
Delta Logo
6:00 am - 3:42 pm
GEG
-
FSD
7h 42m
1 stop
$279Delta
Tue, Mar 24 - Mon, Mar 30
Delta Logo
8:00 am - 1:10 pm
FSD
-
GEG
7h 10m
1 stop
Delta Logo
6:00 am - 12:53 pm
GEG
-
FSD
4h 53m
1 stop
$280Delta
Thu, May 14 - Tue, May 19
United Airlines Logo
6:00 am - 9:42 am
FSD
-
JAC
4h 42m
1 stop
United Airlines Logo
4:15 pm - 11:43 pm
JAC
-
FSD
6h 28m
1 stop
$284United Airlines
Tue, Mar 10 - Sat, Mar 14
Delta Logo
8:00 am - 1:10 pm
FSD
-
GEG
7h 10m
1 stop
Delta Logo
6:00 am - 12:53 pm
GEG
-
FSD
4h 53m
1 stop
$294Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
8:05 am - 1:08 pm
FSD
-
GEG
7h 03m
1 stop
Delta Logo
7:45 pm - 10:21 am
GEG
-
FSD
12h 36m
2 stops
$299Delta
Tue, Mar 3 - Tue, Mar 17
American Airlines Logo
2:52 pm - 10:02 pm
FSD
-
SUN
8h 10m
1 stop
American Airlines Logo
1:27 pm - 10:55 pm
SUN
-
FSD
8h 28m
1 stop
$315American Airlines
Thu, May 7 - Mon, May 11
Allegiant Air Logo
9:10 pm - 10:55 am
FSD
-
GEG
15h 45m
1 stop
Allegiant Air Logo
11:45 am - 8:45 pm
GEG
-
FSD
7h 00m
1 stop
$324Allegiant Air
Fri, Apr 10 - Sat, Apr 11
American Airlines Logo
6:45 am - 12:49 pm
FSD
-
BOI
7h 04m
1 stop
American Airlines Logo
1:29 pm - 11:11 pm
BOI
-
FSD
8h 42m
1 stop
$363American Airlines
Booking Insights

KAYAK's insights & trends for Sioux Falls to Idaho flights

Get data-powered insights and trends into flights from Sioux Falls to Idaho to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sioux Falls to Idaho?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to Idaho departing in March.

What is the cheapest month to fly from Sioux Falls to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sioux Falls to Idaho is April, when tickets cost $318 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $733 and $569 respectively.

Good to know

Low seasonMay
Cheapest flight$155
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Sioux Falls to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Sioux Falls 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 Sioux Falls to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sioux Falls 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 Sioux Falls 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 Sioux Falls 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 Sioux Falls 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 Sioux Falls to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sioux Falls to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Idaho. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux Falls 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.
7.9
DeltaOverall score based on 8212 reviews
7.8Entertainment
7.9Comfort
8.1Boarding
8.5Crew
7.2Food
Airline reviews

The landing was the worst I’ve experienced with a flight.

2.0 MediocreTara, Feb 2026
ATL - CAE
Read more Delta reviews

The landing was the worst I’ve experienced with a flight.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Everything you need to know for your flight from Sioux Falls to Idaho

Information on your arrival and departure airports