Cheap flights from Illinois to South Dakota from $105
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 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Illinois to South Dakota
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
American Airlines flights from Illinois to South Dakota
Our best American Airlines deals on Illinois to South Dakota flight tickets
Delta flights from Illinois to South Dakota
Our best Delta deals on Illinois to South Dakota flight tickets
See travel insights to South Dakota from
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 October is, on average, the cheapest month to fly to South Dakota from Illinois, with most prices found around $239. If you aren’t able to travel to South Dakota during the month of October, then flying in March 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 $287. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $366. 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 morning is when there is more demand to fly to South Dakota, so prices are often more expensive at around $348 per ticket.
What is the cheapest Illinois to South Dakota flight route?
Fly from Chicago O'Hare Intl to Rapid City for the best Illinois - South Dakota flight prices
What is the cheapest airline that flies from Illinois to South Dakota?
Frontier, American Airlines, and Sun Country Air 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 57% 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 April 2025, 17 flights take off from Illinois and land in South Dakota each day. The most common flight departure time for this route is 8:00PM, with 35% of daily flights taking off at noon.
How many flights depart from Illinois to South Dakota on average per week?
As of April 2025, 124 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Mon, with 15% 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 | $105 |
|---|---|
Fastest flight time | 1h 40m |
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 April 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 (Enhanced Winglets), making up 15.21% of the total bookings. Other popular models include Embraer 175 with 12.96%, Embraer 170 with 12.54%, and Canadair (Bombardier) Regional Jet CRJ-550 with 11.83%.
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 $151 | Free Cancellation | Rating 8.7 8 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $199 | Free Cancellation | Rating 7.4 8,685 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 8.0 7,920 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.