Cheap flights from Illinois to Rapid City from $142
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 Rapid City departing on 6/24. 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 Rapid City
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
United Airlines flights from Illinois to Rapid City
Our best United Airlines deals on Illinois to Rapid City flight tickets
Delta flights from Illinois to Rapid City
Our best Delta deals on Illinois to Rapid City flight tickets
See travel insights to Rapid City from
How to get the cheapest flight ticket from Illinois to Rapid City
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 Rapid City?
The month of February is, on average, the cheapest month to fly to Rapid City from Illinois, with most prices found around $218. If you aren’t able to travel to Rapid City during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $228.
What is the cheapest day to depart on your flight to Rapid City?
According to our data, Tuesday is the cheapest day to fly to Rapid City from Illinois. The lowest ticket price found for a Tuesday departure recently was $312. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Monday, with ticket prices averaging around $396.
What is the cheapest time of day to depart on your flight to Rapid City?
Our most recent data shows that the best time of day to fly to Rapid City is in the afternoon. Flights from Illinois to Rapid City during this time can be as low as $279. Flights at noon are often more expensive with an average ticket price of $559.
What is the cheapest Illinois to Rapid City flight route?
Fly from Chicago O'Hare Intl to Rapid City for the best Illinois - Rapid City flight prices
How far in advance should I book a flight to Rapid City?
You are more likely to see cheaper flights to Rapid City from Illinois when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $335 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from Illinois for as low as $269 on momondo.
What cabin class options are available on Illinois to Rapid City flights?
There are 4 cabin classes available to choose from on Illinois to Rapid City flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Illinois to Rapid City?
United Airlines, Delta, and Allegiant Air are the most popular carriers operating from Illinois to Rapid City
What airlines fly to Rapid City?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Rapid City from Illinois according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Rapid City. Keep in mind that there are 3 different airlines that fly to Rapid City on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Rapid City on average per day?
2 flights are operational daily from Illinois to Rapid City as of April 2025. The most popular departure time for this route is 9:00AM, with 100% of flights per day taking off at noon.
How many flights depart from Illinois to Rapid City on average per week?
As of April 2025, there are 18 flights per week flying from Illinois to Rapid City. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.
Cheap Illinois to Rapid City flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Rapid City
When did momondo last update prices for flights from Illinois to Rapid City Airport?
Prices for flights from Illinois to Rapid City Airport are updated daily.
How many operators does momondo search for flights from Illinois to Rapid City Airport?
As of April 2025, there are 3 operators available to choose from for flights from Illinois to Rapid City Airport.
How old do you have to be to fly from Illinois to Rapid City Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Rapid City Airport.
What documentation or ID do you need to fly to Rapid City Airport?
The travel and health documents required for your trip to Rapid City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rapid City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Rapid City?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Rapid City is Embraer 175, representing 29.03% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 26.45%, Airbus A319 at 19.68%, and Airbus A320-100/200 at 10.32%.
Best airlines flying from Illinois to Rapid City
Compare and see reviews for airlines that fly from Illinois to Rapid City with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $209 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $244 | Free Cancellation | Rating 7.4 8,684 reviews |
Traveling to a place near Rapid City?
Book flights to Rapid City if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Illinois to Rapid City?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rapid City from Illinois.
Can I find flights from Illinois to Rapid City with flexible booking policies on momondo?
All flight searches from Illinois to Rapid City on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Illinois to Rapid City?
Once all potential Illinois to Rapid City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Illinois to Rapid City right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Illinois to Rapid City flights. All you need is a valid email address and we will do the rest; it is that quick and easy.