Cheap Flights from Chicago to Rapid City Regional

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Flight deals from Chicago to Rapid City Regional

Looking for a cheap last-minute deal or the best return flight from Chicago to Rapid City Regional? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Rapid City Regional

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Rapid City Regional flights are currently cheapest in September.

Direct flights from Chicago to Rapid City Regional

Chicago to Rapid City Regional: Alternative routes

Compare routes from Chicago to Rapid City below. You may find an airport to fly into that's cheaper, faster, or easier than Rapid City Regional.

Chicago to Rapid City: Flight information

The things to know before you go.
Cheapest flight foundRs56,252
Cheapest month to flySeptember
Average flight time2 hrs, 29 mins
Most popular airlineAmerican Airlines
Average flights per week44

Finding cheap flights from Chicago to Rapid City Regional: Frequently asked questions

The best price we found for a return flight from Chicago to Rapid City Regional is Rs59,185. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 29 minutes is the average flight time from Chicago to Rapid City Regional.
American Airlines, United and Envoy Air fly direct from Chicago to Rapid City Regional.
As of July 2025, there are 44 flights per week flying from Chicago to Rapid City Regional.
The cheapest month to fly from Chicago to Rapid City Regional is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Rapid City Regional Airport on Thursday, 14 August 2025.
Yes – the average flight time is 2 hours and 29 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Rapid City Regional but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Rapid City is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Rapid City Regional is United .

Travelling from Chicago to Rapid City Regional Airport (RAP): What you need to know

  • Start planning your trip by looking up where you'll catch your flight from Chicago to Rapid City Regional Airport (RAP). Explore your options for leaving from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW), the city's main airports.

  • 2 hours 30 minutes is the average duration of a direct Chicago to Rapid City Regional Airport flight.

  • Rapid City Regional Airport is located in Rapid City. The city runs on the UTC-6 timezone and is one hour behind Chicago.

  • With 12 direct weekly flights between the two airports, O'Hare International Airport (ORD) to Rapid City Regional Airport (RAP) is the busiest route. United Airlines operates the earliest flight at 8:46am. If you prefer to make the most of your day before leaving, the latest flight from ORD to RAP is with United Airlines at 7:55pm.

  • Your flight from Chicago to RAP won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Longer lines at security and check-in are likely if you're heading away during high season, so give yourself some extra breathing room. The recommendation for peak periods? Arrive up to four hours early for international flights and at least two hours for domestic departures.

Airports in Chicago

O'Hare International Airport (ORD)

  • O'Hare International Airport (ORD) will have you travelling directly to your destination. Nonstop flights from Chicago to Rapid City Regional Airport (RAP) can be booked from this terminal.

  • When taking off from ORD, you can catch a direct flight from Chicago to Rapid City Regional Airport with United Airlines.

  • United Airlines is the most frequently chosen airline for flights from ORD to RAP.

  • United Airlines is the most punctual carrier operating on this route, with 71.43% of its services arriving as planned.

  • Located around 40 kilometres from the centre of Chicago, ORD can be reached in about 35 minutes by car, depending on traffic. The journey by public transport is roughly 55 minutes.

  • Planning to catch an early flight from Chicago to Rapid City Regional Airport? Avoid the hassle of rushing to the terminal (and sneak in some bonus sleep) by picking one of these hotels near O'Hare International Airport:

  • When it comes to the on-time performance of O'Hare International Airport, data shows 74.85% of flights complete their journey on time.

  • ORD's address is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is about 19 kilometres from central Chicago. It'll take you 20 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 45 minutes.

  • Start your holiday early with an additional night away from home. Before catching your Chicago to RAP flight, kick back in one of these hotels near Chicago Midway International Airport:

  • When it comes to keeping flights on track, Chicago Midway International Airport has an on-time arrival rate of 77.88%.

  • The address for MDW is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • RFD is roughly 137 kilometres from central Chicago. Driving from the city centre to the airport takes about 1 hour 25 minutes. If you're thinking about using public transport, you can expect a journey of around 4 hours 15 minutes.

  • Make catching an early Chicago to Rapid City Regional Airport flight one of the easiest parts of your trip. Book a room at one of these accommodation options close to Chicago Rockford International Airport and get to your gate with plenty of time to spare:

  • The on-time performance rating of RFD is 76.19%. In simpler terms, that's how often flights departing this airport arrive within the expected time frame.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

About Rapid City Regional Airport (RAP)

How to find the cheapest flights from Chicago to Rapid City Regional Airport (RAP)

  • The cheapest price we've found for a one-way ticket from Chicago to Rapid City Regional Airport is Rs56,252. For a return flight on this route, the best price is Rs59,185. Depending on how early you book and the availability, these fares can change.

  • Booking ahead of time is often the key to finding a cheap flight from Chicago to RAP. Prices tend to rise as demand increases, so the closer your departure date, the more you'll likely spend.

  • The 'Whole month' search tool shows you the cheapest Chicago to Rapid City Regional Airport tickets throughout the entire month. It's a good way to find a bargain if your plans aren't set in stone.

  • Stay on top of deals for flight tickets from Chicago to RAP by setting up a Price Alert. We'll send you an email or push notification on the app when prices go down.

  • Find the best deal on a flight from Chicago to Rapid City Regional Airport with the help of the filters. Pick your preferred arrival and departure times, number of stops and airlines. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest.'

The best time to fly from Chicago to Rapid City Regional Airport (RAP)

  • February is the quietest month for flights from Chicago to Rapid City Regional Airport (RAP), while August is the busiest. Pick the best time to go to Rapid City based on whether you prefer a laid-back vibe or a lively atmosphere.

  • Lock in a Chicago to RAP flight ticket departing in July if you're eager to experience the city during its warmest month. Expect temperatures in Rapid City to range from 14ºC to 32ºC.

  • Look for cheap tickets from Chicago to Rapid City Regional Airport in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -16ºC and 7ºC.

More about Rapid City

Explore more of the United States

  • You've visited Rapid City, now it's time to explore other parts of the United States. Travel about 290 kilometres south-west to Casper to tick off its must-visit sights. From Nicolaysen Art Museum to Casper Mountain Lookout and White Water Park, there's plenty to keep you on the go.

  • Around 193 kilometres west of Rapid City, Gillette is another favourite stop in the United States. Experience the best of this destination with a visit to Eldridge Park, Gillette Brewing Company and The O-SO Fun Dog Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.