$159 Cheap Flights from Milwaukee (MKE) to Rapid City (RAP)

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Find available prices by choosing your travel dates.

Cheap Flights from Milwaukee to Rapid City (MKE-RAP)

Prices were available within the past 7 days and start at $159 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
American Airlines
Delta
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Delta
United
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United
United
Flights from Milwaukee (MKE) to Rapid City (RAP)
Origin airport
General Mitchell Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$244
Distance
762 mi

Milwaukee to Rapid City Flights

The cheapest times to fly from Milwaukee to Rapid City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Milwaukee to Rapid City are during the month of November. You can find some of the cheapest flights from Milwaukee to Rapid City with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Milwaukee to Rapid City

Sunday is one of the best days to book for cheap flights from Milwaukee to Rapid City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Milwaukee to Rapid City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Milwaukee to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $159 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Milwaukee to Rapid City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Milwaukee to Rapid City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from MKE to RAP last minute?
When it’s time to book your flights, it pays to be prepared. While you may be able to find a deal on a General Mitchell Intl. Airport (MKE) to Rapid City Regional Airport flight at the last minute, tickets usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international travel it’s between three and four months.
What airports do you fly into for Rapid City from Milwaukee?
There are two — Rapid City Regional Airport (RAP) and Spearfish, SD (SPF-Black Hills). Both are excellent choices for those flying from Milwaukee to Rapid City. If you choose to arrive at Rapid City Regional Airport (RAP), you’ll come in to land around 9 mi east of Rapid City. Once you’ve checked in to your comfortable hotel, it’s time to experience some of the city’s best sights. Watiki Water Park and Rushmore Mall are both a hit with visitors to the area.
Can I change the date of my flight from Mitchell Intl. Airport to RAP?
You can make changes to your General Mitchell Intl. Airport (MKE) to RAP ticket via the Expedia Trips portal. Before you amend times or dates, read over the ticket rules in your itinerary to learn what the airline will allow you to do and if fees apply. Some carriers have a change fee per person, in addition to any difference in fares. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also head to our Customer Service portal for more useful advice and to chat with our Virtual Agent.

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