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Rapid City

$134+ Cheap flights from Illinois to Rapid City (RAP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RAP
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$249
(Delta)

One-way from

$134
(eDestinos)

Good round-trip deal

$379 or less
From Illinois to Rapid City
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One-way flight from Illinois to Rapid City
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Price to beat on a round-trip flight from Illinois to Rapid City.
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Find flight deals from Illinois to Rapid City

Cheapest flights from Illinois to Rapid City
Explore the most affordable flight options available from Illinois to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/176:00 amSTL - RAP
1 stop6h 04mDelta
Mon 2/244:19 pmRAP - STL
1 stop4h 58mDelta
Deal found 1/21$249
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/29:15 amORD - RAP
Nonstop2h 37mUnited Airlines
Tue 4/81:00 pmRAP - ORD
Nonstop2h 28mUnited Airlines
Deal found 1/20$269
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:15 amORD - RAP
1 stop5h 49mDelta
Tue 2/1811:49 amRAP - ORD
1 stop4h 40mDelta
Deal found 1/20$289
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1810:19 amMDW - RAP
1 stop6h 14mDelta
Fri 2/2811:49 amRAP - MDW
1 stop4h 54mDelta
Deal found 1/20$289
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/213:26 pmMLI - RAP
1 stop5h 59mAmerican Airlines
Thu 2/2712:24 pmRAP - MLI
1 stop7h 59mAmerican Airlines
Deal found 1/21$319
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/235:03 amSTL - RAP
1 stop7h 54mAmerican Airlines
Sat 1/255:24 amRAP - STL
1 stop6h 36mAmerican Airlines
Deal found 1/19$349
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/310:39 amSTL - RAP
2 stops7h 20mUnited Airlines
Sat 5/107:00 amRAP - STL
2 stops7h 47mUnited Airlines
Deal found 1/19$411
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/194:44 pmORD - RAP
3 stops25h 08mMultiple Airlines
Wed 2/267:07 pmRAP - ORD
3 stops34h 00mMultiple Airlines
Deal found 1/20$472
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/13:30 pmORD - RAP
Nonstop2h 22mAmerican Airlines
Thu 8/76:02 pmRAP - ORD
Nonstop2h 13mAmerican Airlines
Deal found 1/20$564
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:42 pmMLI - RAP
2 stops18h 31mUnited Airlines
Sat 9/65:48 pmRAP - MLI
2 stops17h 17mUnited Airlines
Deal found 1/21$578
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/53:36 pmPIA - RAP
2 stops7h 37mUnited Airlines
Sun 2/91:25 pmRAP - PIA
2 stops24h 33mUnited Airlines
Deal found 1/21$634
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/153:50 pmBMI - RAP
1 stop5h 28mAmerican Airlines
Thu 9/185:58 pmRAP - BMI
1 stop4h 18mAmerican Airlines
Deal found 1/21$640

Find flights from Illinois to Rapid City within your budget

Customize your flight search to find flights from Illinois to Rapid City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Mon 2/17

6:00 am-11:04 am

1 stop6h 04m

Rapid City

Mon 2/24

4:19 pm-10:17 pm

1 stop4h 58m

$249

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 4/2

9:15 am-10:52 am

Nonstop2h 37m

Rapid City

Tue 4/8

1:00 pm-4:28 pm

Nonstop2h 28m

$269

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 2/15

11:35 am-3:33 pm

1 stop4h 58m

Rapid City

Tue 2/25

4:19 pm-9:58 pm

1 stop4h 39m

$289

ChicagoRapid City

MDW - RAP

MDWRAP

Chicago Midway

Tue 2/18

10:19 am-3:33 pm

1 stop6h 14m

Rapid City

Sat 2/22

11:49 am-5:43 pm

1 stop4h 54m

$289

MolineRapid City

MLI - RAP

MLIRAP

Moline Quad-City

Fri 2/21

3:26 pm-8:25 pm

1 stop5h 59m

Rapid City

Thu 2/27

12:24 pm-9:23 pm

1 stop7h 59m

$319

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Tue 5/13

6:09 am-11:30 am

1 stop6h 21m

Rapid City

Tue 5/20

6:00 am-10:24 pm

1 stop15h 24m

$403

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Fri 3/21

4:30 pm-8:57 pm

1 stop5h 27m

Rapid City

Mon 3/24

5:15 am-2:23 pm

2 stops8h 08m

$431

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 2/19

4:44 pm-4:52 pm

3 stops25h 08m

Rapid City

Wed 2/26

7:07 pm-6:07 am

3 stops34h 00m

$472

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 5/17

10:00 am-11:30 am

Nonstop2h 30m

Rapid City

Sat 5/17

12:50 pm-4:06 pm

Nonstop2h 16m

$582

PeoriaRapid City

PIA - RAP

PIARAP

Greater Peoria

Wed 2/5

3:36 pm-10:13 pm

2 stops7h 37m

Rapid City

Sun 2/9

1:25 pm-2:58 pm

2 stops24h 33m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 19 results
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Best time to book a flight from Illinois to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Rapid City

Get recent, data-driven insights about flights from Illinois to Rapid City including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Rapid City?

Currently, January is the cheapest month in which you can book a flight from Illinois to Rapid City (average of $348). Flying from Illinois to Rapid City in May is currently the most expensive (average of $594). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to RAP?

Find hourly flight availability from Illinois to Rapid City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Rapid City as you normally would.

Rainfall in Rapid City by month

Plan your trip to Rapid City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rapid City ranges from 0.3 - 3.2 inches per month. May is typically the wettest month, when rainfall can reach 3.2 in. January is typically the driest time to visit Rapid City when rainfall is around 0.3 in.

Temperature in Rapid City by month

Plan your trip to Rapid City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rapid City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rapid City. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with American Airlines, Delta and United Airlines from Illinois to Rapid City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Illinois to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Rapid City from Illinois?

    Most people fly into Rapid City (RAP) if they book a flight to Rapid City from Illinois. Rapid City is conveniently located just 9.0 mi from Rapid City’s city center.

  • What are the cheapest airlines to fly from Illinois to Rapid City one-way?

    One-way options have recently been found by users for as low as $220 on Delta. Other airlines that offer cheap prices include American Airlines from $244 and United Airlines from $269 one-way.

  • What are the most popular routes from Illinois to Rapid City?

    When deciding which route to take from Illinois to Rapid City consider Chicago O'Hare Intl - Rapid City, Chicago Midway - Rapid City or Lambert-St Louis - Rapid City as they are the most popular.

  • What are the most reliable airlines from Illinois to Rapid City?

    No one likes to see their flight delayed. When booking a flight from Illinois to Rapid City consider choosing SkyWest Airlines (72%), United Airlines (72%) or Emirates (71%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Rapid City?

    While on average a flight from Illinois to Rapid City is generally $476, our data shows the cheapest flight currently is $254. When looking at the most popular route, (Chicago O'Hare Intl - Rapid City), you can expect to pay $235 for that flight.

  • Can I find deals for flights from Illinois to Rapid City that include hotel bookings?

    Yes. In addition to deals on Illinois to Rapid City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Rapid City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Rapid City.

  • Can I find deals for business class flights from Illinois to Rapid City?

    Yes. Cheapflights offers flight deals from Illinois to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Rapid City?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Rapid City (average of $348). Flying from Illinois to Rapid City in May is currently the most expensive (average of $594). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Deadwood
Spearfish
Keystone
Sturgis
Wall

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Alternative routes for Illinois to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Rapid City

Discover the top 3 airlines that operate flights from Illinois to Rapid City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$220Average$569FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$394FlexibilityNo cancel feeOn-time69%
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