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 Airport? If you want to travel next month, return fares start from $483. 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 August.

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 found$351
Cheapest month to flyMay
Average flight time2 hrs, 37 mins
Most popular airlineUnited
Average flights per week65

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 $465. 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 37 minutes is the average flight time from Chicago to Rapid City Regional.
United, Envoy Air and American Airlines fly direct from Chicago to Rapid City Regional.
As of April 2026, there are 65 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 Monday, 10 August 2026.
Yes – the average flight time is 2 hours and 37 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 .

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

  • Chicago's main airport is Chicago O'Hare International Airport (ORD). Check out your options for departing from here when searching for your flights from Chicago to Rapid City Regional Airport (RAP).

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

  • The timezone in Rapid City is UTC-7, which is one hour behind Chicago. Rapid City Regional Airport is located in Rapid City.

  • The busiest route is from Chicago O'Hare International Airport (ORD) to Rapid City Regional Airport (RAP), with 13 direct services every week. If you're looking to take off without delay, the earliest flight from ORD to RAP is the 8:46am United Airlines option. If you need some extra time before takeoff, the last departure is at 7:55pm with United Airlines.

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

  • Peak months like July or holiday periods such as Christmas and spring break will mean bigger queues at check-in and security. Travelling then? Play it safe and head to the terminal even earlier. Arriving two hours before a domestic flight and up four hours ahead of international flights is a smart move.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • Chicago O'Hare International Airport (ORD) makes it easy to travel directly to your destination. Nonstop flights from Chicago to Rapid City Regional Airport (RAP) leave from this terminal.

  • You can book a direct flight from Chicago to Rapid City Regional Airport with United Airlines. This popular carrier operates services from ORD.

  • The airline with the highest booking numbers between ORD and RAP is United.

  • The top on-time carrier on this route is United. Its services arrive as scheduled 76.92% of the time.

  • Located around 27 kilometres from the centre of Chicago, ORD can be reached in about 30 minutes by car, depending on traffic. The journey on public transport is roughly 45 minutes.

  • Looking for a convenient hotel near Chicago O'Hare International Airport? If you're catching an early flight from Chicago to Rapid City Regional Airport, these accommodation options will put you a quick hop from check-in:

  • When it comes to Chicago O'Hare International Airport's on-time performance, data shows 70% of flights arrive within the expected time frame.

  • ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is around 16 kilometres from central Chicago. It'll take 25 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 30 minutes.

  • Start your holiday sooner with an additional night away from home. Before your Chicago to RAP flight, unwind in one of these hotels close to Chicago Midway International Airport:

  • 76% of flights taking off from Chicago Midway International Airport meet their expected arrival time.

  • The street address for MDW is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • From the centre of Chicago, RFD is around 145 kilometres away. It takes roughly 1 hour 40 minutes to get to the airport by car and 2 hours or so on public transport.

  • Make departure day worry-free — stay close to Chicago Rockford International Airport and know you'll make it to the terminal with time to spare. Settle in at one of these hotels the day before if you're catching an early Chicago to Rapid City Regional Airport flight:

  • Airports have an on-time performance rating that measures how often flights land without delays. At RFD, that rate is 71%.

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

About Rapid City Regional Airport (RAP)

  • Hop off your flight from Chicago to Rapid City Regional Airport and jump into your hotel bed shortly after. If you're searching for a convenient option that's not too far from RAP, head for La Quinta Inn and Suites by Wyndham at WaTiki Waterpark.

  • RAP is located at 4550 Terminal Road, Suite 102.

Getting from Rapid City Regional Airport (RAP) to central Rapid City

  • Central Rapid City is around 11 kilometres from Rapid City Regional Airport and takes about 15 minutes to reach by car. Look into how to get from the airport to the city, whether that's with a car hire, taxi or ride-share.

  • It takes roughly 30 minutes if you're travelling on public transport.

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

  • $351 is the lowest price for a one-way ticket from Chicago to Rapid City Regional Airport. A return flight starts at $465. These prices can change depending on availability and demand.

  • To pick up cheap flights from Chicago to RAP, book ahead. Airlines generally offer the most competitive fares when flights first go on sale.

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

  • Locking in a cheap plane ticket from Chicago to RAP couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know when a better deal is available.

  • Tailor your trip using filters. Select your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Chicago to Rapid City Regional Airport.

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

  • Think about the kind of holiday you want when picking your flight dates. February is the quietest month to go to Rapid City. July is when most people book flights from Chicago to Rapid City Regional Airport (RAP), which may be ideal if you're chasing more excitement.

  • The warmest month in Rapid City is July, with temperatures ranging between 14ºC and 32ºC. Lock in your Chicago to RAP plane ticket then if this is the type of weather you enjoy.

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

More about Rapid City

Explore more of the United States

  • Casper is just one of the many cities in the United States waiting to be explored after you've seen Rapid City. Around 290 kilometres away to the southwest, its top attractions include Nicolaysen Art Museum, Casper Mountain Lookout and National Historic Trails Interpretive Centre.

  • Next stop? Find your way to Gillette. It's roughly 193 kilometres west of Rapid City and features highlights including Frontier Auto Museum and Campbell County School District Planetarium.

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