How many flights depart from Illinois to Rapid City on average per day?

3 flights are operational daily from Illinois to Rapid City as of October 2025. The most popular departure time for this route is 8:00AM, with 93% of flights per day taking off at noon.

What airlines fly to Rapid City?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Rapid City from Illinois according to our data. American Airlines is the first choice among our users, with 46% 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.

What is the cheapest airline that flies from Illinois to Rapid City?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Illinois to Rapid City

How many flights depart from Illinois to Rapid City on average per week?

As of October 2025, there are 24 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.

How long does it take to fly to Rapid City?

Flight times vary depending on what airport in Illinois you fly out of and what airport in Rapid City you fly into. For example, flying from Chicago to Rapid City takes 3h 27m on average. On the other hand, flying from Moline to Rapid City takes 4h 43m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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 October 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.

$139 Cheap Flights from Illinois to Rapid City in 2025/26

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Find the cheapest flights from Illinois to Rapid City

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 am - 10:13 amORD-RAP

2h 28mnonstop

6:00 pm - 11:59 pmRAP-ORD

4h 59m1 stop

$219United Airlines

Find Deal

Fri, Oct 24 - Tue, Oct 28

4:09 pm - 8:35 pmORD-RAP

5h 26m1 stop

6:00 pm - 11:59 pmRAP-ORD

4h 59m1 stop

$229United Airlines

Find Deal

Sat, Oct 25 - Tue, Oct 28

9:20 am - 3:14 pmMDW-RAP

6h 54m1 stop

10:40 am - 6:08 pmRAP-MDW

6h 28m1 stop

$229Delta

Find Deal

Sat, Feb 21 - Tue, Feb 24

8:45 am - 10:34 amORD-RAP

2h 49mnonstop

6:00 pm - 11:59 pmRAP-ORD

4h 59m1 stop

$233United Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

8:55 am - 3:45 pmORD-RAP

7h 50m2 stops

2:51 pm - 7:55 pmRAP-ORD

4h 04m1 stop

$234Delta

Find Deal

Thu, Dec 11 - Sun, Dec 14

9:34 am - 3:45 pmMDW-RAP

7h 11m2 stops

6:05 am - 1:08 pmRAP-MDW

6h 03m1 stop

$234Delta

Find Deal

Thu, Dec 11 - Sun, Dec 14

2:55 pm - 9:19 pmORD-RAP

7h 24m1 stop

4:28 pm - 11:13 pmRAP-ORD

5h 45m1 stop

$269American Airlines

Find Deal

Sat, Oct 25 - Mon, Oct 27

4:17 pm - 9:19 pmORD-RAP

6h 02m1 stop

4:28 pm - 11:53 pmRAP-ORD

6h 25m1 stop

$279American Airlines

Find Deal

Sat, Oct 11 - Thu, Oct 16

8:00 am - 8:54 pmORD-RAP

13h 54m1 stop

9:44 pm - 5:32 amRAP-ORD

30h 48m1 stop

$312Multiple Airlines

Find Deal

Thu, Nov 6 - Sun, Nov 9

7:52 pm - 5:08 pmSTL-RAP

22h 16m2 stops

5:58 pm - 11:43 amRAP-STL

16h 45m1 stop

$386Multiple Airlines

Find Deal

Wed, Oct 22 - Sun, Oct 26

American Airlines flights from Illinois to Rapid City

Our best American Airlines deals on Illinois to Rapid City flight tickets

American Airlines

Oct 25

ORD2:55 pmChicago O'Hare Intl

7h 24m

1 stop

RAP9:19 pmRapid City

Oct 27

RAP4:28 pmRapid City

5h 45m

1 stop

ORD11:13 pmChicago O'Hare Intl

$269

Find similar

American Airlines

Oct 11

ORD4:17 pmChicago O'Hare Intl

6h 02m

1 stop

RAP9:19 pmRapid City

Oct 16

RAP4:28 pmRapid City

6h 25m

1 stop

ORD11:53 pmChicago O'Hare Intl

$279

Find similar

American Airlines

Oct 25

ORD4:17 pmChicago O'Hare Intl

6h 02m

1 stop

RAP9:19 pmRapid City

Oct 27

RAP4:28 pmRapid City

5h 45m

1 stop

ORD11:13 pmChicago O'Hare Intl

$310

Find similar

Delta flights from Illinois to Rapid City

Our best Delta deals on Illinois to Rapid City flight tickets

Delta

Feb 21

MDW9:20 amChicago Midway

6h 54m

1 stop

RAP3:14 pmRapid City

Feb 24

RAP10:40 amRapid City

6h 28m

1 stop

MDW6:08 pmChicago Midway

$229

Find similar

Delta

Dec 11

ORD8:55 amChicago O'Hare Intl

7h 50m

2 stops

RAP3:45 pmRapid City

Dec 14

RAP2:51 pmRapid City

4h 04m

1 stop

ORD7:55 pmChicago O'Hare Intl

$234

Find similar

Delta

Feb 21

MDW9:30 amChicago Midway

6h 44m

2 stops

RAP3:14 pmRapid City

Feb 24

RAP6:20 amRapid City

11h 14m

2 stops

MDW6:34 pmChicago Midway

$239

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Fri 10/24

8:45 am-10:13 am

Nonstop2h 28m

Rapid City

Tue 10/28

6:00 pm-11:59 pm

1 stop4h 59m

$219

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 10/25

4:09 pm-8:35 pm

1 stop5h 26m

Rapid City

Tue 10/28

6:00 pm-11:59 pm

1 stop4h 59m

$229

ChicagoRapid City

MDW - RAP

MDWRAP

Chicago Midway

Sat 2/21

9:20 am-3:14 pm

1 stop6h 54m

Rapid City

Tue 2/24

10:40 am-6:08 pm

1 stop6h 28m

$229

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 10/29

8:45 am-10:34 am

Nonstop2h 49m

Rapid City

Wed 11/5

6:00 pm-11:59 pm

1 stop4h 59m

$233

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Thu 12/11

8:55 am-3:45 pm

2 stops7h 50m

Rapid City

Sun 12/14

2:51 pm-7:55 pm

1 stop4h 04m

$234

ChicagoRapid City

MDW - RAP

MDWRAP

Chicago Midway

Thu 12/11

9:34 am-3:45 pm

2 stops7h 11m

Rapid City

Sun 12/14

6:05 am-1:08 pm

1 stop6h 03m

$234

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 10/25

2:55 pm-9:19 pm

1 stop7h 24m

Rapid City

Mon 10/27

4:28 pm-11:13 pm

1 stop5h 45m

$269

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 10/11

4:17 pm-9:19 pm

1 stop6h 02m

Rapid City

Thu 10/16

4:28 pm-11:53 pm

1 stop6h 25m

$279

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Thu 11/6

8:00 am-8:54 pm

1 stop13h 54m

Rapid City

Sun 11/9

9:44 pm-5:32 am

1 stop30h 48m

$312

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Wed 10/22

7:52 pm-5:08 pm

2 stops22h 16m

Rapid City

Sun 10/26

5:58 pm-11:43 am

1 stop16h 45m

$386

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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, Thursday is the cheapest day to fly to Rapid City from Illinois. The lowest ticket price found for a Thursday departure recently was $288. 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 $431.

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 $276. Flights in the evening are often more expensive with an average ticket price of $374.

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 weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $319 when searching 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 $271 on momondo.

What cabin class options are available on Illinois to Rapid City flights?

There are 3 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.

Can stopping save me money on Illinois to Rapid City flights?

You could potentially save up to 15% on your flight if you consider stops on a Illinois to Rapid City flight.

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

Best Price Found	$271
Fastest flight time	2h 28m
Direct flights	Every day
Airports in Rapid City	1 airport

The best flight deal from Illinois to Rapid City found on momondo in the last 72 hours is $271

The fastest flight from Illinois to Rapid City takes 2h 28m

Direct flights go from Illinois to Rapid City every day.

There is 1 airport near Rapid City: Rapid City (RAP)

Search flight deals

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 October 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 170, representing 23.19% of all bookings. The subsequent popular models are Airbus A320-100/200 at 23.19%, Embraer 175 at 18.95%, and Embraer 175 (Enhanced Winglets) at 16.96%.

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
American Airlines	PriceFrom $209	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights

Deadwood

Keystone

Sturgis

Spearfish

Custer

Wall

Hill City

Hot Springs

Why 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.

An easier way to manage your Rapid City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Illinois to Rapid City from $139

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 10/30. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Illinois to Rapid City

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American Airlines flights from Illinois to Rapid City

Our best American 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

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Use the filters below to find and compare flights from Illinois to Rapid City that are best for you.

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?

What is the cheapest day to depart on your flight to Rapid City?

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 $276. Flights in the evening are often more expensive with an average ticket price of $374.

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?

What cabin class options are available on Illinois to Rapid City flights?

There are 3 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.

Can stopping save me money on Illinois to Rapid City flights?

You could potentially save up to 15% on your flight if you consider stops on a Illinois to Rapid City flight.

What is the cheapest airline that flies from Illinois to Rapid City?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Illinois to Rapid City

What airlines fly to Rapid City?

How many flights depart from Illinois to Rapid City on average per day?

3 flights are operational daily from Illinois to Rapid City as of October 2025. The most popular departure time for this route is 8:00AM, with 93% of flights per day taking off at noon.

How many flights depart from Illinois to Rapid City on average per week?

As of October 2025, there are 24 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.

How long does it take to fly to Rapid City?

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

Best Price Found

Fastest flight time

Direct flights

Airports in Rapid City

When did momondo last update prices for flights from Illinois to Rapid City Airport?

How many operators does momondo search for flights from Illinois to Rapid City Airport?

How old do you have to be to fly from Illinois to Rapid City Airport?

What documentation or ID do you need to fly to Rapid City Airport?

What is the most popular plane model from Illinois to Rapid City?

Best airlines flying from Illinois to Rapid City

Compare and see reviews for airlines that fly from Illinois to Rapid City with momondo

Traveling to a place near Rapid City?

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Rapid City?

Can I find flights from Illinois to Rapid City with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Rapid City?

I’m not ready to book a flight from Illinois to Rapid City right now. Can momondo alert me if prices change?

An easier way to manage your Rapid City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing South Dakota