STL - RAP

$339 Find Cheap Flights from St. Louis to Rapid City - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$339
Typical prices: $314-$433
American Airlines
Sun 10/7Mon 10/15
STL - RAP • 1 stop
Cheapest one-way
$389
Typical prices: $224-$363
Delta
Tue 12/11
STL - RAP • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Rapid City. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 23% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Minneapolis St Paul (MSP)
Cheapest • Avg $370 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 05m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from St. Louis to Rapid City (STL-RAP)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Rapid City

Wed, Oct 7 - Thu, Oct 15
American Airlines Logo
5:40 am - 9:54 amSTL  Lambert-St Louis-RAP Rapid City
5h 14m1 stop Dallas/Fort Worth
American Airlines Logo
5:04 pm - 11:42 pmRAP  Rapid City-STL Lambert-St Louis
5h 38m1 stop Dallas/Fort Worth
$339American Airlines
Tue, Oct 13 - Sat, Oct 17
American Airlines Logo
5:40 am - 9:54 amSTL  Lambert-St Louis-RAP Rapid City
5h 14m1 stop Dallas/Fort Worth
American Airlines Logo
5:04 pm - 11:42 pmRAP  Rapid City-STL Lambert-St Louis
5h 38m1 stop Dallas/Fort Worth
$339American Airlines
Wed, Oct 14 - Wed, Oct 21
American Airlines Logo
5:40 am - 9:54 amSTL  Lambert-St Louis-RAP Rapid City
5h 14m1 stop Dallas/Fort Worth
American Airlines Logo
5:04 pm - 11:42 pmRAP  Rapid City-STL Lambert-St Louis
5h 38m1 stop Dallas/Fort Worth
$339American Airlines
Wed, Oct 14 - Sat, Oct 17
United Airlines Logo
5:10 am - 9:28 amSTL  Lambert-St Louis-RAP Rapid City
5h 18m1 stop Denver Intl
United Airlines Logo
12:30 pm - 9:21 pmRAP  Rapid City-STL Lambert-St Louis
7h 51m2 stops Denver Intl Chicago O'Hare Intl
$398United Airlines
Thu, Nov 5 - Sun, Nov 8
United Airlines Logo
4:39 pm - 8:43 pmSTL  Lambert-St Louis-RAP Rapid City
5h 04m1 stop Denver Intl
United Airlines Logo
7:00 am - 3:43 pmRAP  Rapid City-STL Lambert-St Louis
7h 43m2 stops Denver Intl Chicago O'Hare Intl
$398United Airlines
Tue, Oct 13 - Sat, Oct 17
United Airlines Logo
5:10 am - 9:28 amSTL  Lambert-St Louis-RAP Rapid City
5h 18m1 stop Denver Intl
United Airlines Logo
12:30 pm - 9:21 pmRAP  Rapid City-STL Lambert-St Louis
7h 51m2 stops Denver Intl Chicago O'Hare Intl
$418United Airlines
Wed, Oct 7 - Thu, Oct 15
Multiple Airlines Logo
8:10 pm - 1:45 pmSTL  Lambert-St Louis-RAP Rapid City
18h 35m2 stops Denver Intl Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:35 pm - 12:35 pmRAP  Rapid City-STL Lambert-St Louis
21h 00m1 stop Las Vegas Harry Reid Intl
$533Multiple Airlines
Sun, Mar 14 - Thu, Mar 18
Delta Logo
6:30 am - 11:12 amSTL  Lambert-St Louis-RAP Rapid City
5h 42m1 stop Minneapolis St Paul
Delta Logo
6:55 am - 11:50 amRAP  Rapid City-STL Lambert-St Louis
3h 55m1 stop Minneapolis St Paul
$739Delta
Wed, Dec 2 - Fri, Dec 4
Delta Logo
6:03 am - 10:38 amSTL  Lambert-St Louis-RAP Rapid City
5h 35m1 stop Minneapolis St Paul
Delta Logo
4:36 pm - 11:26 pmRAP  Rapid City-STL Lambert-St Louis
5h 50m1 stop Minneapolis St Paul
$777Delta
Wed, Dec 2 - Fri, Dec 4
Delta Logo
2:17 pm - 10:46 pmSTL  Lambert-St Louis-RAP Rapid City
9h 29m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
4:36 pm - 11:26 pmRAP  Rapid City-STL Lambert-St Louis
5h 50m1 stop Minneapolis St Paul
$836Delta
Booking Insights

Price, demand and travel trends for St. Louis to Rapid City flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Rapid City with more confidence.

How much is a round-trip flight from St. Louis to Rapid City?

Round-trip flights from St. Louis to Rapid City start at $339. Prices are typical for this route right now, with typical round-trip fares ranging from $314 to $433. The lowest price found in the past 5 days was $339 on American Airlines.

What's the cheapest day of the week to fly from St. Louis to Rapid City?

Friday is the cheapest day of the week to fly from St. Louis to Rapid City, it is 19% cheaper than the average day. Saturday is the most expensive day with flight prices 14% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from St. Louis to Rapid City?

•February is the cheapest month to fly from St. Louis to Rapid City at $289 round-trip.
•December ($458) and July ($420) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for St. Louis to Rapid City flights

Low season

December

Cheapest flight

$389
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from St. Louis to Rapid City

When to book flights from St. Louis to Rapid City

Are your dates flexible? Find out the best times to travel from St. Louis to Rapid City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Rapid City flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Rapid City?

    Flights from St. Louis to Rapid City usually depart from Lambert-St Louis (STL) and arrive at Rapid City (RAP).

  • What cabin classes can I book on flights from St. Louis to Rapid City?

    Two cabin classes are available on flights from St. Louis to Rapid City:

    • Economy Class
    • First Class

  • Which airports do connecting flights from St. Louis to Rapid City pass through?

    One-stop flights from St. Louis to Rapid City most commonly connect through:

    • Denver Intl (DEN) - 48% of one-stop connections
    • Minneapolis St Paul (MSP) - 26% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 14% of one-stop connections
    • Dallas/Fort Worth (DFW) - 12% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Rapid City?

    Yes. Being flexible with your travel dates can save you up to 29% on the St. Louis to Rapid City route. Friday is the cheapest departure day at $308 round-trip on average, while Saturday is the most expensive at $429, a difference of $121. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from St. Louis to Rapid City?

    A nonstop flight from St. Louis to Rapid City takes 0h 00m, covering 751 miles.

  • Do I need a passport to fly from St. Louis to Rapid City?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from St. Louis to Rapid City changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $339 to $1,273. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from St. Louis to Rapid City looking right now?

    One-way fares from St. Louis to Rapid City are currently higher than usual. Average one-way flight prices are about $665, which is 139% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from St. Louis to Rapid City?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 05m, compared with 5h 26m via Minneapolis St Paul (MSP) and 5h 32m via Chicago O'Hare Intl (ORD).

  • What is the time difference between St. Louis and Rapid City?

    Rapid City is 1 hour behind St. Louis (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Rapid City Airport (RAP)?

    Rapid City Airport (RAP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include:
    • Budget
    • Hertz
    • Alamo
    • Thrifty
    • Enterprise Rent-A-Car

  • How much should I expect to pay for a St. Louis to Rapid City flight?

    Round-trip flights from St. Louis to Rapid City range from $314 to $433, with an average of $376 over the past 12 months. Anything below $314 counts as a good deal.

Your guide to booking St. Louis to Rapid City flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Saturday. On this route, Friday flights average $308 - about $121 less than Saturday (28% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Rapid City trip for February. Fares historically average $289 round-trip in that month - typically $169 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from St. Louis to Rapid City

Complete your trip to Rapid City with a hotel stay or car rental

Car rentals in Rapid City
Hotels in Rapid City
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