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$98+ Cheap flights from Rapid City (RAP) to Illinois

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — ORD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Rapid City to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Illinois (USIL). 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 November 20, 2024.

Find flight deals from Rapid City to Illinois

Cheapest flights from Rapid City to Illinois
Explore the most affordable flight options available from Rapid City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Delta deal was found by Cheapflights users on 11/20. 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.
Thu 12/124:15 pmRAP - STL
1 stop5h 11mDelta
Sun 12/157:15 pmSTL - RAP
1 stop4h 44mDelta
Deal found 11/20$248
This American Airlines deal was found by Cheapflights users on 11/20. 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 12/64:29 pmRAP - ORD
1 stop6h 28mAmerican Airlines
Sun 12/86:00 amORD - RAP
1 stop6h 58mAmerican Airlines
Deal found 11/20$258
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 12/58:45 amRAP - STL
1 stop6h 44mUnited Airlines
Sun 12/84:31 pmSTL - RAP
1 stop5h 26mUnited Airlines
Deal found 11/19$258
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Thu 12/54:29 pmRAP - STL
1 stop5h 04mAmerican Airlines
Sun 12/85:05 amSTL - RAP
1 stop7h 53mAmerican Airlines
Deal found 11/20$283
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Fri 12/276:05 amRAP - ORD
Nonstop2h 34mUnited Airlines
Tue 12/317:35 pmORD - RAP
Nonstop2h 49mUnited Airlines
Deal found 11/19$309
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Fri 12/611:11 amRAP - ORD
2 stops17h 19mMultiple Airlines
Sun 12/85:10 amORD - RAP
2 stops17h 10mMultiple Airlines
Deal found 11/20$431
This Delta deal was found by Cheapflights users on 11/20. 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.
Thu 12/511:47 amRAP - ORD
2 stops7h 38mDelta
Sun 12/86:20 amORD - RAP
1 stop5h 49mDelta
Deal found 11/20$488
This Delta deal was found by Cheapflights users on 11/20. 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 11/2311:47 amRAP - MDW
1 stop5h 45mDelta
Sun 11/241:30 pmMDW - RAP
2 stops10h 17mDelta
Deal found 11/20$583

Find flights from Rapid City to Illinois within your budget

Customize your flight search to find flights from Rapid City to Illinois 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Sat 1/11

11:49 am-5:29 pm

1 stop4h 40m

Chicago O'Hare Intl

Tue 1/14

11:50 am-3:37 pm

1 stop4h 47m

$196

Rapid CityChicago

RAP - MDW

RAPMDW

Rapid City

Sat 1/11

11:49 am-5:47 pm

1 stop4h 58m

Chicago Midway

Tue 1/14

6:59 pm-10:45 pm

1 stop4h 46m

$196

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Thu 12/12

4:15 pm-10:26 pm

1 stop5h 11m

Lambert-St Louis

Sun 12/15

7:15 pm-10:59 pm

1 stop4h 44m

$248

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Fri 12/6

4:29 pm-11:57 pm

1 stop6h 28m

Chicago O'Hare Intl

Sun 12/8

6:00 am-11:58 am

1 stop6h 58m

$258

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Thu 12/5

8:45 am-4:29 pm

1 stop6h 44m

Lambert-St Louis

Sun 12/8

4:31 pm-8:57 pm

1 stop5h 26m

$258

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Thu 12/5

4:29 pm-10:33 pm

1 stop5h 04m

Lambert-St Louis

Sun 12/8

5:05 am-11:58 am

1 stop7h 53m

$283

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Fri 12/27

6:05 am-9:39 am

Nonstop2h 34m

Chicago O'Hare Intl

Tue 12/31

7:35 pm-9:24 pm

Nonstop2h 49m

$309

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Fri 12/6

11:11 am-5:30 am

2 stops17h 19m

Chicago O'Hare Intl

Sun 12/8

5:10 am-9:20 pm

2 stops17h 10m

$431

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Tue 12/17

11:49 am-7:45 pm

1 stop6h 56m

$98

Rapid CityChicago

RAP - ORD

RAPORD

Rapid City

Wed 12/18

10:45 am-12:22 am

1 stop12h 37m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Best time to book a flight from Rapid City to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Rapid City 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 Rapid City to Illinois

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

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

Currently, September is the cheapest month in which you can book a flight from Rapid City to Illinois (average of $232). Flying from Rapid City to Illinois in June is currently the most expensive (average of $308). 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 RAP to IL?

Find hourly flight availability from Rapid City to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

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

Weekly flight availability from Rapid City to Illinois

Explore weekly flight availability from Rapid City to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from RAP to USIL are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown Delta, American Airlines and United Airlines from Rapid City to Illinois. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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 Rapid City to Illinois. 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 from for flights from Rapid City to Illinois?

    Rapid City (RAP), located 9.0 mi from the city center, is the airport you fly out of when you book flights from Rapid City to Illinois.

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

    The most popular route from Rapid City to Illinois is Rapid City - Chicago O'Hare Intl. You may also consider Rapid City - Lambert-St Louis or Rapid City - Chicago Midway.

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

    No one likes to see their flight delayed. When booking a flight from Rapid City to Illinois consider choosing Emirates (87%), Air New Zealand (87%) or United Airlines (85%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $615 for a flight from Rapid City to Illinois. The cheapest flight overall is $247 while the most popular route, (Rapid City - Chicago O'Hare Intl) is currently priced at $279.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rapid City to Illinois 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 Rapid City to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Rapid City to Illinois (average of $232). Flying from Rapid City to Illinois in June is currently the most expensive (average of $308). 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

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Alternative routes for Rapid City to Illinois

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

Discover the top 3 airlines that operate flights from Rapid City to Illinois. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$186Average$338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$212Average$260FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$242Average$383FlexibilityNo cancel feeOn-time69%
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