Cheap flights from Illinois to South Dakota from $100
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to South Dakota departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from Illinois to South Dakota
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How to get the cheapest flight ticket from Illinois 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 month to fly to South Dakota?
The month of March is, on average, the cheapest month to fly to South Dakota from Illinois, with most prices found around $249. If you aren’t able to travel to South Dakota during the month of March, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $249.
What is the cheapest day to depart on your flight to South Dakota?
The cheapest day to depart from Illinois to South Dakota is on a Friday. Travelers who choose to depart for South Dakota on a Friday will often find tickets for as low as $262. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $399. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.
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 $189. In the afternoon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $335 per ticket.
What is the cheapest Illinois to South Dakota flight route?
Fly from Chicago O'Hare Intl to Sioux Falls Joe Foss Field for the best Illinois - South Dakota flight prices
What cabin class options are available on Illinois to South Dakota flights?
There are 4 cabin classes available to choose from on Illinois to South Dakota flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Illinois to South Dakota flights?
No. A direct flight is the cheapest option for a flight between Illinois to South Dakota.
What is the cheapest airline that flies from Illinois to South Dakota?
Frontier, American Airlines, and United Airlines are the most popular carriers operating from Illinois to South Dakota
What airlines fly to South Dakota?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to South Dakota from Illinois according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 4 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to South Dakota on average per day?
As of June 2025, 22 flights take off from Illinois and land in South Dakota each day. The most common flight departure time for this route is 8:00AM, with 38% of daily flights taking off at noon.
How many flights depart from Illinois to South Dakota on average per week?
As of June 2025, 155 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Thu, with 16% of weekly flights taking off on this day.
Cheap Illinois to South Dakota flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to South Dakota
Best Price Found | $100 |
|---|---|
Fastest flight time | 1h 48m |
Direct flights | Every day |
Airports in South Dakota | 2 airports |
When did momondo last update prices for flights from Illinois to South Dakota?
Prices for flights from Illinois to South Dakota were last updated today.
How many operators does momondo search for flights from Illinois to South Dakota?
As of June 2025, there are 3 operators available to choose from for flights from Illinois to South Dakota.
How old do you have to be to fly from Illinois to South Dakota?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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.
What is the most popular plane model from Illinois to South Dakota?
Based on momondo bookings for flights between Illinois and South Dakota, the leading plane model is Embraer 175, making up 16.23% of the total bookings. Other popular models include Embraer 170 with 15.64%, Embraer 175 (Enhanced Winglets) with 13.86%, and Airbus A319 with 11.14%.
Best airlines flying from Illinois to South Dakota
Compare and see reviews for airlines that fly from Illinois to South Dakota with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $152 | Free Cancellation | Rating 8.7 8 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $207 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 8.0 7,963 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to South Dakota?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to South Dakota. momondo saves you time and could save you money on your trip.
Can I find flights from Illinois to South Dakota with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Illinois to South Dakota flights to just show those with flexible booking policies.
How can momondo help me find flights from Illinois to South Dakota?
Once you have performed a search for Illinois to South Dakota 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 Illinois to South Dakota right now. Can momondo alert me if prices change?
If you are simply researching potential flights to South Dakota, momondo offers a useful price alert feature which will track prices for flights to South Dakota from Illinois and alert you when they change.