$216 Cheap Flights from Rapid City (RAP) to Baton Rouge (BTR)

View $216 flight on Thu, Jan 8, 2026Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Rapid City to Baton Rouge (RAP-BTR)

Prices were available within the past 7 days and start at $216 for one-way flights and $375 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Feb 10 - Sat, Feb 14
RAP
Rapid City
BTR
Baton Rouge
$375 Roundtrip, found 6 days ago
$375
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Sat, Feb 14, priced at $375 found 6 days ago
Delta
Sat, Feb 7 - Thu, Feb 12
RAP
Rapid City
BTR
Baton Rouge
$413 Roundtrip, found 6 days ago
$413
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Feb 7 from Rapid City to Baton Rouge, returning Thu, Feb 12, priced at $413 found 6 days ago
American Airlines
Tue, Feb 10 - Mon, Feb 16
RAP
Rapid City
BTR
Baton Rouge
$421 Roundtrip, found 6 days ago
$421
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Mon, Feb 16, priced at $421 found 6 days ago
Delta
Sat, Feb 14 - Sat, Feb 21
RAP
Rapid City
BTR
Baton Rouge
$449 Roundtrip, found 6 days ago
$449
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Feb 14 from Rapid City to Baton Rouge, returning Sat, Feb 21, priced at $449 found 6 days ago
United
Thu, Dec 25 - Wed, Dec 31
RAP
Rapid City
BTR
Baton Rouge
$454 Roundtrip, found 1 day ago
$454
Roundtrip
found 1 day ago
Select United flight, departing Thu, Dec 25 from Rapid City to Baton Rouge, returning Wed, Dec 31, priced at $454 found 1 day ago
United
Tue, Feb 10 - Sat, Feb 14
RAP
Rapid City
BTR
Baton Rouge
$455 Roundtrip, found 6 days ago
$455
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Sat, Feb 14, priced at $455 found 6 days ago
Delta
Tue, Feb 10 - Mon, Feb 16
RAP
Rapid City
BTR
Baton Rouge
$466 Roundtrip, found 6 days ago
$466
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Mon, Feb 16, priced at $466 found 6 days ago
American Airlines
Tue, Feb 10 - Wed, Feb 18
RAP
Rapid City
BTR
Baton Rouge
$469 Roundtrip, found 6 days ago
$469
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Wed, Feb 18, priced at $469 found 6 days ago
Delta
Sun, Feb 8 - Sat, Feb 14
RAP
Rapid City
BTR
Baton Rouge
$469 Roundtrip, found 6 days ago
$469
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Feb 8 from Rapid City to Baton Rouge, returning Sat, Feb 14, priced at $469 found 6 days ago
United
Tue, Feb 10 - Sat, Feb 14
RAP
Rapid City
BTR
Baton Rouge
$473 Roundtrip, found 6 days ago
$473
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 10 from Rapid City to Baton Rouge, returning Sat, Feb 14, priced at $473 found 6 days ago

Alternative airports near Baton Rouge

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baton Rouge Metropolitan BTR. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $739
BTR
Baton Rouge Metropolitan
CheapestClosest
Average driving time to city center10 min
Flights from $739
Flights from Rapid City (RAP) to Baton Rouge (BTR)
Origin airport
Rapid City Regional
Destination airport
Baton Rouge Metropolitan
Airlines serving
American Airlines, Delta, United
Roundtrip price
$375
Distance
1136 mi

Rapid City to Baton Rouge Flights

The cheapest times to fly from Rapid City to Baton Rouge

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

 

The best time to book a flight from Rapid City to Baton Rouge

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

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 Baton Rouge in 2026. You can also book with separate airlines for your outbound and return journeys, from $216 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 Baton Rouge 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 Baton Rouge 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

How much does a flight from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR) cost?
Grab a cheap one-way flight from $216 or cheap return flight from $375 from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR)?
Planning your getaway for February may help you find better deals, as it's the cheapest month for flights between RAP and BTR. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from RAP to BTR. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR)?
You'll have to book a flight with a layover if you're traveling from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from RAP to BTR?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, airline 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 Baton Rouge Metropolitan Airport (BTR)?
Opt for a flight from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Baton Rouge Metropolitan Airport (BTR) last-minute?
Last-minute bookings from RAP to BTR are generally more expensive. To secure the best prices, start searching for flights as early as possible. That said, if you're flexible with your travel dates, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a RAP to BTR flight and hotel package?
Compared with arranging flights and hotels separately, booking a RAP to BTR flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Baton Rouge Metropolitan Airport (BTR)?
You can usually cancel or reschedule your RAP to BTR flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.