RAP - STL

$284 Find Cheap Flights from Rapid City to St. Louis - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$339
Typical prices: $294-$482
Delta
Wed 10/24Sun 10/28
RAP - STL • 1 stop
Cheapest one-way
$284
Typical prices: $268-$410
United Airlines
Tue 12/25
RAP - STL • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Rapid City and St. Louis. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 28% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Las Vegas Harry Reid Intl (LAS)
Cheapest • Avg $239 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 13m (one-way)
Insights
Insights
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Flight Deals

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

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

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

Sat, Oct 24 - Wed, Oct 28
Delta Logo
4:38 pm - 11:21 pmRAP  Rapid City-STL Lambert-St Louis
5h 43m1 stop Minneapolis St Paul
Delta Logo
12:28 pm - 3:58 pmSTL  Lambert-St Louis-RAP Rapid City
4h 30m1 stop Minneapolis St Paul
$339Delta
Wed, Nov 11 - Sat, Nov 14
Delta Logo
4:36 pm - 11:18 pmRAP  Rapid City-STL Lambert-St Louis
5h 42m1 stop Minneapolis St Paul
Delta Logo
5:30 pm - 10:37 pmSTL  Lambert-St Louis-RAP Rapid City
6h 07m1 stop Minneapolis St Paul
$339Delta
Thu, Dec 3 - Sun, Dec 6
United Airlines Logo
2:35 pm - 8:57 pmRAP  Rapid City-STL Lambert-St Louis
5h 22m1 stop Denver Intl
United Airlines Logo
2:50 pm - 7:51 pmSTL  Lambert-St Louis-RAP Rapid City
6h 01m1 stop Denver Intl
$339United Airlines
Thu, Nov 12 - Sun, Nov 15
Delta Logo
4:36 pm - 11:18 pmRAP  Rapid City-STL Lambert-St Louis
5h 42m1 stop Minneapolis St Paul
Delta Logo
5:22 pm - 10:37 pmSTL  Lambert-St Louis-RAP Rapid City
6h 15m1 stop Minneapolis St Paul
$339Delta
Wed, Nov 11 - Sun, Nov 15
Delta Logo
4:36 pm - 11:18 pmRAP  Rapid City-STL Lambert-St Louis
5h 42m1 stop Minneapolis St Paul
Delta Logo
5:22 pm - 10:37 pmSTL  Lambert-St Louis-RAP Rapid City
6h 15m1 stop Minneapolis St Paul
$339Delta
Wed, Nov 11 - Sat, Nov 14
United Airlines Logo
7:00 am - 12:38 pmRAP  Rapid City-STL Lambert-St Louis
4h 38m1 stop Denver Intl
United Airlines Logo
9:40 am - 5:09 pmSTL  Lambert-St Louis-RAP Rapid City
8h 29m2 stops Chicago O'Hare Intl Denver Intl
$344United Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
5:04 pm - 11:42 pmRAP  Rapid City-STL Lambert-St Louis
5h 38m1 stop Dallas/Fort Worth
American Airlines Logo
7:29 am - 4:25 pmSTL  Lambert-St Louis-RAP Rapid City
9h 56m2 stops Chicago O'Hare Intl Dallas/Fort Worth
$344American Airlines
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
6:11 am - 7:22 pmRAP  Rapid City-STL Lambert-St Louis
12h 11m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
6:00 am - 12:39 pmSTL  Lambert-St Louis-RAP Rapid City
7h 39m1 stop Dallas/Fort Worth
$344American Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
5:04 pm - 11:42 pmRAP  Rapid City-STL Lambert-St Louis
5h 38m1 stop Dallas/Fort Worth
American Airlines Logo
11:32 am - 9:39 pmSTL  Lambert-St Louis-RAP Rapid City
11h 07m2 stops Chicago O'Hare Intl Dallas/Fort Worth
$344American Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
1:37 pm - 9:21 pmRAP  Rapid City-STL Lambert-St Louis
6h 44m1 stop Chicago O'Hare Intl
United Airlines Logo
5:10 am - 9:28 amSTL  Lambert-St Louis-RAP Rapid City
5h 18m1 stop Denver Intl
$418United Airlines
Booking Insights

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

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

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

Round-trip flights from Rapid City to St. Louis start at $339. Prices are typical for this route right now, with typical round-trip fares ranging from $294 to $482. The lowest price found in the past 5 days was $339 on Delta.

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

Tuesday is the cheapest day of the week to fly from Rapid City to St. Louis, it is 39% cheaper than the average day. Saturday is the most expensive day with flight prices 52% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Rapid City to St. Louis flights

Low season

July

Cheapest flight

$284
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Rapid City to St. Louis

When to book flights from Rapid City to St. Louis

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

Your Rapid City to St. Louis 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 Rapid City to St. Louis?

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

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

    Only Economy Class is available on flights from Rapid City to St. Louis.

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

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

    • Denver Intl (DEN) - 60% of one-stop connections
    • Minneapolis St Paul (MSP) - 28% of one-stop connections
    • Dallas/Fort Worth (DFW) - 5% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 5% 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 Rapid City to St. Louis?

    Yes. Being flexible with your travel dates can save you up to 60% on the Rapid City to St. Louis route. Tuesday is the cheapest departure day at $239 round-trip on average, while Saturday is the most expensive at $588, a difference of $349. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

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

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

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

    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 Rapid City to St. Louis 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 $862. That means the highest observed fare was about 3x higher than the lowest one.

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

    One-way fares from Rapid City to St. Louis are currently higher than usual. Average one-way flight prices are about $526, which is 36% above the typical average for this route.

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

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 13m, compared with 5h 16m via Minneapolis St Paul (MSP) and 5h 29m via Chicago O'Hare Intl (ORD).

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

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

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

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

    Round-trip flights from Rapid City to St. Louis range from $294 to $482, with an average of $386 over the past 12 months. Anything below $294 counts as a good deal.

Your guide to booking Rapid City to St. Louis 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 Tuesday departure instead of Saturday. On this route, Tuesday flights average $239 - about $349 less than Saturday (59% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Rapid City to St. Louis trip for January. Fares historically average $277 round-trip in that month - typically $283 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.
    - Drury Inn & Suites St. Louis Airport
    - Renaissance St. Louis Airport Hotel
    - DoubleTree by Hilton St. Louis Airport

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

Complete your trip to St. Louis with a hotel stay or car rental

Car rentals in St. Louis
Hotels in St. Louis
Vacations in St. Louis