$236 Cheap Flights from Rapid City (RAP) to Monroe (MLU)

View $236 flight on Wed, May 6, 2026Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Monroe, LA (MLU-Monroe Regional)

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Cheap Flights from Rapid City to Monroe (RAP-MLU)

Prices were available within the past 7 days and start at $236 for one-way flights and $704 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$704 Roundtrip, found 4 days ago
$704
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $704 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$714 Roundtrip, found 4 days ago
$714
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $714 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$808 Roundtrip, found 4 days ago
$808
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $808 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$818 Roundtrip, found 4 days ago
$818
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $818 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$828 Roundtrip, found 4 days ago
$828
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $828 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$844 Roundtrip, found 4 days ago
$844
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $844 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$854 Roundtrip, found 4 days ago
$854
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $854 found 4 days ago
American Airlines
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$884 Roundtrip, found 4 days ago
$884
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $884 found 4 days ago
United
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$1,869 Roundtrip, found 4 days ago
$1,869
Roundtrip
found 4 days ago
Select United flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $1,869 found 4 days ago
Delta
Sun, Jun 21 - Mon, Jun 22
RAP
Rapid City
MLU
Monroe
$2,137 Roundtrip, found 4 days ago
$2,137
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Jun 21 from Rapid City to Monroe, returning Mon, Jun 22, priced at $2,137 found 4 days ago

Frequently asked questions

How much does a flight from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU) cost?
Lock in a cheap one-way flight from $236 or cheap return flight from $704 from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU)?
June is the most affordable month to fly from RAP to MLU. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from RAP to MLU. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU)?
You'll have to take a flight with a layover if you're traveling from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from RAP to MLU?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU)?
Book a flight from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU) last-minute?
Last-minute bookings from RAP to MLU are generally more expensive. For the best prices, start looking for flights as early as possible. That said, if you're flexible with your travel plans, you may score a cheap fare just before your departure.
Is it cheaper to book a RAP to MLU flight and hotel package?
Compared with arranging flights and hotels separately, booking a RAP to MLU flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Simply secure your flights and select from our wide range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Monroe Regional Airport (MLU)?
If you booked your RAP to MLU flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Origin airport
Rapid City Regional
Destination airport
Monroe Regional
Roundtrip price
$704
Distance
993 mi

Book with confidence

Rapid City to Monroe Flights

The cheapest times to fly from Rapid City to Monroe

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 Rapid City to Monroe are during the month of June. You can find some of the cheapest flights from Rapid City to Monroe with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Rapid City to Monroe: 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 Rapid City to Monroe

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 Rapid City to Monroe in 2026. You can also book with separate airlines for your outbound and return journeys, from $236 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 Rapid City to Monroe 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 Rapid City to Monroe 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.

 

Rapid City to Monroe Flights

*Flight schedules are subject to change.

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*Available to One Key members.