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Cheap flights from Chicago O'Hare Intl Airport to Rapid City from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Rapid City departing on 4/15. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:28 pm - 3:02 pm
ORD
-
RAP
2h 34mnonstop
American Airlines Logo
3:32 pm - 7:05 pm
RAP
-
ORD
2h 33mnonstop
$209American Airlines
Fri, May 29 - Mon, Jun 1
United Airlines Logo
5:00 am - 9:19 am
ORD
-
RAP
5h 19m
1 stop
United Airlines Logo
1:41 pm - 5:05 pm
RAP
-
ORD
2h 24mnonstop
$219United Airlines
Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
7:55 pm - 9:36 pm
ORD
-
RAP
2h 41mnonstop
United Airlines Logo
2:42 pm - 10:54 pm
RAP
-
ORD
7h 12m
1 stop
$228United Airlines
Thu, Apr 2 - Mon, Apr 6
United Airlines Logo
5:00 am - 9:19 am
ORD
-
RAP
5h 19m
1 stop
United Airlines Logo
5:53 pm - 12:44 am
RAP
-
ORD
5h 51m
1 stop
$229United Airlines
Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
9:05 am - 10:36 am
ORD
-
RAP
2h 31mnonstop
United Airlines Logo
12:10 pm - 3:24 pm
RAP
-
ORD
2h 14mnonstop
$245United Airlines
Wed, May 6 - Tue, May 12
United Airlines Logo
8:40 am - 10:19 am
ORD
-
RAP
2h 39mnonstop
United Airlines Logo
1:41 pm - 5:05 pm
RAP
-
ORD
2h 24mnonstop
$246United Airlines
Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
2:40 pm - 6:54 pm
ORD
-
RAP
5h 14m
1 stop
United Airlines Logo
2:45 pm - 10:55 pm
RAP
-
ORD
7h 10m
1 stop
$249United Airlines
Sat, Feb 28 - Sat, Mar 7
American Airlines Logo
1:28 pm - 3:02 pm
ORD
-
RAP
2h 34mnonstop
American Airlines Logo
12:44 pm - 4:10 pm
RAP
-
ORD
2h 26mnonstop
$250American Airlines
Tue, Jun 30 - Thu, Jul 9
United Airlines Logo
8:40 am - 10:19 am
ORD
-
RAP
2h 39mnonstop
United Airlines Logo
1:41 pm - 5:05 pm
RAP
-
ORD
2h 24mnonstop
$253United Airlines
Sat, Jul 11 - Wed, Jul 15
Delta Logo
6:15 am - 10:20 am
ORD
-
RAP
5h 05m
1 stop
Delta Logo
6:00 am - 4:43 pm
RAP
-
ORD
9h 43m
2 stops
$254Delta
Wed, Mar 18 - Wed, Mar 25

American Airlines flights from Chicago O'Hare Intl Airport to Rapid City

Our best American Airlines deals on Chicago O'Hare Intl Airport to Rapid City flight tickets
American Airlines
May 29
ORD1:28 pmChicago O'Hare Intl
2h 34m
RAP3:02 pmRapid City
Jun 1
RAP3:32 pmRapid City
2h 33m
ORD7:05 pmChicago O'Hare Intl
$209
American Airlines
Jun 30
ORD1:28 pmChicago O'Hare Intl
2h 34m
RAP3:02 pmRapid City
Jul 9
RAP12:44 pmRapid City
2h 26m
ORD4:10 pmChicago O'Hare Intl
$250
American Airlines
May 24
ORD1:28 pmChicago O'Hare Intl
2h 34m
RAP3:02 pmRapid City
May 30
RAP3:32 pmRapid City
2h 33m
ORD7:05 pmChicago O'Hare Intl
$264

Delta flights from Chicago O'Hare Intl Airport to Rapid City

Our best Delta deals on Chicago O'Hare Intl Airport to Rapid City flight tickets
Delta
Mar 18
ORD6:15 amChicago O'Hare Intl
5h 05m
1 stop
RAP10:20 amRapid City
Mar 25
RAP6:00 amRapid City
9h 43m
2 stops
ORD4:43 pmChicago O'Hare Intl
$254
Delta
Apr 2
ORD6:15 amChicago O'Hare Intl
5h 05m
1 stop
RAP10:20 amRapid City
Apr 5
RAP4:01 pmRapid City
4h 25m
1 stop
ORD9:26 pmChicago O'Hare Intl
$269
Delta
Feb 27
ORD6:15 amChicago O'Hare Intl
4h 54m
1 stop
RAP10:09 amRapid City
Mar 2
RAP10:54 amRapid City
8h 50m
2 stops
ORD8:44 pmChicago O'Hare Intl
$274

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated February 17, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Fri 5/29

1:28 pm-3:02 pm

Nonstop2h 34m

Rapid City

Mon 6/1

3:32 pm-7:05 pm

Nonstop2h 33m

$209

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 7/11

5:00 am-9:19 am

1 stop5h 19m

Rapid City

Wed 7/15

1:41 pm-5:05 pm

Nonstop2h 24m

$219

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Thu 4/2

7:55 pm-9:36 pm

Nonstop2h 41m

Rapid City

Mon 4/6

2:42 pm-10:54 pm

1 stop7h 12m

$228

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 7/11

5:00 am-9:19 am

1 stop5h 19m

Rapid City

Wed 7/15

5:53 pm-12:44 am

1 stop5h 51m

$229

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 5/6

9:05 am-10:36 am

Nonstop2h 31m

Rapid City

Tue 5/12

12:10 pm-3:24 pm

Nonstop2h 14m

$245

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 7/11

8:40 am-10:19 am

Nonstop2h 39m

Rapid City

Wed 7/15

1:41 pm-5:05 pm

Nonstop2h 24m

$246

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 2/28

2:40 pm-6:54 pm

1 stop5h 14m

Rapid City

Sat 3/7

2:45 pm-10:55 pm

1 stop7h 10m

$249

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Tue 6/30

1:28 pm-3:02 pm

Nonstop2h 34m

Rapid City

Thu 7/9

12:44 pm-4:10 pm

Nonstop2h 26m

$250

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 7/11

8:40 am-10:19 am

Nonstop2h 39m

Rapid City

Wed 7/15

1:41 pm-5:05 pm

Nonstop2h 24m

$253

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 3/18

6:15 am-10:20 am

1 stop5h 05m

Rapid City

Wed 3/25

6:00 am-4:43 pm

2 stops9h 43m

$254

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 day to depart on your flight to Rapid City?

According to our data, Wednesday is the cheapest day to fly to Rapid City from Chicago O'Hare Intl Airport. The lowest ticket price found for a Wednesday departure recently was $309. 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 at noon. Flights from Chicago O'Hare Intl Airport to Rapid City during this time can be as low as $209. Flights in the evening are often more expensive with an average ticket price of $365.

What is the cheapest Chicago O'Hare Intl to Rapid City flight route?

Fly from Chicago O'Hare Intl to Rapid City for the best Chicago O'Hare Intl - 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 Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $329 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from Chicago O'Hare Intl Airport for as low as $265 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Rapid City flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport to Rapid City flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Rapid City.

How have Chicago O'Hare Intl Airport to Rapid City flight prices changed over time?

As of February 2026, prices for Chicago O'Hare Intl Airport to Rapid City flights are approximately 47% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Rapid City (ORD to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Rapid City

Best Price Found

$183

Fastest flight time

2h 30m

Direct flights

Every day

Airports in Rapid City

1 airport
The best one-way flight to Rapid City from Chicago O'Hare Intl Airport in the past 72 hours is $183. The best round-trip flight deal from Chicago O'Hare Intl Airport to Rapid City found on momondo in the last 72 hours is $250.
The fastest flight from Chicago O'Hare Intl Airport to Rapid City takes 2h 30m
Direct flights go from Chicago O'Hare Intl Airport to Rapid City every day.
There is 1 airport in Rapid City. From Chicago O'Hare Intl Airport there are direct flights to Rapid City (RAP).
Search flight deals

  • How far is Chicago O'Hare Intl to Rapid City by plane?

    There are 785.8 mi between Chicago O'Hare Intl and Rapid City. By plane, this route typically takes 2h 30m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Rapid City Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Rapid City Airport refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Rapid City Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Rapid City Airport?

    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 Chicago O'Hare Intl Airport to Rapid City Airport.

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

    The required travel and health documents for your Rapid City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rapid City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Rapid City?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Rapid City?

Best airlines flying from Chicago O'Hare Intl Airport to Rapid City

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $209Free CancellationRating
7.2
11,294 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,205 reviews
Search Delta flights
United AirlinesPriceFrom $252Free CancellationRating
7.4
9,308 reviews
Search United Airlines flights

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Deadwood
Keystone
Sturgis
Spearfish
Custer
Hill City
Wall
Hot Springs

Why use momondo?

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

It is quick and easy to find Chicago to Rapid City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rapid City that suits you.

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

Yes. All flights to Rapid City from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Chicago and Rapid City by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Rapid City from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Rapid City trip

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