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Cheap flights from Rapid City to St. Louis (RAP - STL) from $243

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
RAP — STL
May 3 — May 101
From?
To?
Fri 5/3
Fri 5/10
1 adult, Economy
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Cheap flight deals from Rapid City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2024.

Popular in

December

Cheapest in

November

Average price

$491

Round-trip from

$323
High demand for flights, 21% potential price rise
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Best time to find cheap flights, 26% potential price drop
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Average for round-trip flights in April 2024
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From Rapid City to Lambert-St Louis
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What is the cheapest day to fly round-trip from Rapid City to St. Louis?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

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

November is one of the best times of the year to fly to St. Louis from Rapid City. Prices for November average $536 per person but you can even find prices for as low as $397. The most expensive prices can be found in the month of December. Opting for a November flight can save you 27% on your journey compared to booking in December

When is the cheapest time to fly from Rapid City to St. Louis (RAP - STL)?

It’s optimal to fly from Rapid City to St. Louis in the afternoon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight at noon.

Cheap American Airlines flights from Rapid City to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Rapid City and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Check out some of the cheapest American Airlines flights we've come across from Rapid City to St. Louis. Make sure to check back often as deals are often changing.
Wed 6/192:36 pmRAP - STL
1 stop18h 56mAmerican Airlines
Wed 6/266:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$372
Tue 6/252:36 pmRAP - STL
1 stop18h 56mAmerican Airlines
Tue 7/26:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$391
Tue 7/911:12 amRAP - STL
1 stop7h 18mAmerican Airlines
Wed 7/176:04 amSTL - RAP
1 stop8h 52mAmerican Airlines
Deal found 4/27$407
Tue 6/256:00 amRAP - STL
2 stops10h 18mAmerican Airlines
Tue 7/26:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$411
Tue 7/912:30 pmRAP - STL
2 stops10h 04mAmerican Airlines
Wed 7/176:04 amSTL - RAP
1 stop8h 52mAmerican Airlines
Deal found 4/27$414
Sat 6/292:36 pmRAP - STL
1 stop18h 56mAmerican Airlines
Sat 7/66:13 pmSTL - RAP
1 stop20h 43mAmerican Airlines
Deal found 4/27$486
Wed 6/1212:28 pmRAP - STL
2 stops8h 34mAmerican Airlines
Wed 6/195:27 amSTL - RAP
1 stop11h 41mAmerican Airlines
Deal found 4/27$528
Wed 7/36:00 amRAP - STL
2 stops10h 18mAmerican Airlines
Thu 7/116:13 pmSTL - RAP
1 stop20h 43mAmerican Airlines
Deal found 4/27$542
Wed 6/266:00 amRAP - STL
2 stops10h 18mAmerican Airlines
Thu 7/47:00 amSTL - RAP
1 stop10h 08mAmerican Airlines
Deal found 4/27$548

Cheap United Airlines flights from Rapid City to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Rapid City and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Some of the best deals we've found on United Airlines flights traveling from Rapid City to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$354
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Tue 5/78:47 amSTL - RAP
1 stop4h 45mUnited Airlines
Deal found 4/27$424
Wed 6/265:30 amRAP - STL
1 stop6h 16mUnited Airlines
Thu 7/44:36 pmSTL - RAP
1 stop4h 58mUnited Airlines
Deal found 4/27$504
Fri 5/241:45 pmRAP - STL
1 stop24h 56mUnited Airlines
Sun 5/264:45 pmSTL - RAP
1 stop6h 13mUnited Airlines
Deal found 4/27$531
Fri 5/33:45 pmRAP - STL
1 stop4h 24mUnited Airlines
Tue 5/711:10 amSTL - RAP
2 stops12h 03mUnited Airlines
Deal found 4/27$623
Fri 5/35:45 pmRAP - STL
2 stops15h 32mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$630
Fri 5/245:59 pmRAP - STL
2 stops20h 42mUnited Airlines
Sun 5/264:45 pmSTL - RAP
1 stop6h 13mUnited Airlines
Deal found 4/27$668

Cheap Rapid City to St. Louis flights in April & May 2024

Find cheap flight options from Rapid City to St. Louis specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Prices were last updated on April 28, 2024.
Check out some of the best flight deals from Rapid City to St. Louis in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$354
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Tue 5/78:47 amSTL - RAP
1 stop4h 45mUnited Airlines
Deal found 4/27$424
Fri 5/241:45 pmRAP - STL
1 stop24h 56mUnited Airlines
Sun 5/264:45 pmSTL - RAP
1 stop6h 13mUnited Airlines
Deal found 4/27$531
Fri 5/33:45 pmRAP - STL
1 stop4h 24mUnited Airlines
Tue 5/711:10 amSTL - RAP
2 stops12h 03mUnited Airlines
Deal found 4/27$623
Fri 5/35:45 pmRAP - STL
2 stops15h 32mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$630
Fri 5/245:59 pmRAP - STL
2 stops20h 42mUnited Airlines
Sun 5/264:45 pmSTL - RAP
1 stop6h 13mUnited Airlines
Deal found 4/27$668
Fri 5/36:00 amRAP - STL
2 stops7h 35mAmerican Airlines
Tue 5/75:04 amSTL - RAP
2 stops11h 54mAmerican Airlines
Deal found 4/27$720
Fri 5/312:19 pmRAP - STL
2 stops9h 23mAmerican Airlines
Mon 5/611:40 amSTL - RAP
2 stops9h 53mAmerican Airlines
Deal found 4/27$722
Fri 5/244:28 pmRAP - STL
2 stops15h 51mAmerican Airlines
Sun 5/267:30 amSTL - RAP
2 stops14h 03mAmerican Airlines
Deal found 4/27$876

Rapid City to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Rapid City and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Check out some of the best flight deals from Rapid City to St. Louis in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 12/76:30 amRAP - STL
1 stop7h 00mDelta
Tue 12/105:35 pmSTL - RAP
1 stop5h 21mDelta
Deal found 4/27$248
Sat 12/711:45 amRAP - STL
2 stops10h 50mDelta
Tue 12/106:30 amSTL - RAP
1 stop5h 27mDelta
Deal found 4/27$253
Sat 12/711:45 amRAP - STL
2 stops10h 50mDelta
Tue 12/101:00 pmSTL - RAP
2 stops9h 56mDelta
Deal found 4/27$323
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$354
Wed 6/192:36 pmRAP - STL
1 stop18h 56mAmerican Airlines
Wed 6/266:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$372
Wed 6/124:28 pmRAP - STL
1 stop4h 27mDelta
Wed 6/195:53 pmSTL - RAP
1 stop6h 37mDelta
Deal found 4/27$378
Tue 6/252:36 pmRAP - STL
1 stop18h 56mAmerican Airlines
Tue 7/26:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$391
Tue 7/911:12 amRAP - STL
1 stop7h 18mAmerican Airlines
Wed 7/176:04 amSTL - RAP
1 stop8h 52mAmerican Airlines
Deal found 4/27$407
Tue 6/256:00 amRAP - STL
2 stops10h 18mAmerican Airlines
Tue 7/26:00 amSTL - RAP
1 stop9h 06mAmerican Airlines
Deal found 4/27$411

Rapid City to St. Louis flights leaving soon

Find last-minute flight options from Rapid City to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Book one of these great deals on flights from Rapid City to St. Louis. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$354
Fri 5/38:37 amRAP - STL
1 stop7h 01mUnited Airlines
Tue 5/78:47 amSTL - RAP
1 stop4h 45mUnited Airlines
Deal found 4/27$424
Fri 5/33:45 pmRAP - STL
1 stop4h 24mUnited Airlines
Tue 5/711:10 amSTL - RAP
2 stops12h 03mUnited Airlines
Deal found 4/27$623
Fri 5/35:45 pmRAP - STL
2 stops15h 32mUnited Airlines
Mon 5/64:51 pmSTL - RAP
1 stop6h 22mUnited Airlines
Deal found 4/27$630
Fri 5/36:00 amRAP - STL
2 stops7h 35mAmerican Airlines
Tue 5/75:04 amSTL - RAP
2 stops11h 54mAmerican Airlines
Deal found 4/27$720
Fri 5/312:19 pmRAP - STL
2 stops9h 23mAmerican Airlines
Mon 5/611:40 amSTL - RAP
2 stops9h 53mAmerican Airlines
Deal found 4/27$722

One-way flights to St. Louis from Rapid City

Search for one-way flight options from Rapid City to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Take a look at some of the best available options we've come across on one-way flights from Rapid City to St. Louis. Users needing a return flight from Rapid City to St. Louis should utilize the search form above.
Tue 9/175:59 pmRAP - STL
1 stop26h 29mUnited Airlines
Deal found 4/27$243
Tue 7/164:31 pmRAP - STL
1 stop4h 05mDelta
Deal found 4/27$268
Tue 9/1711:25 amRAP - STL
2 stops21h 42mUnited Airlines
Deal found 4/27$333
Tue 7/164:00 pmRAP - STL
2 stops21h 18mUnited Airlines
Deal found 4/27$338
Fri 5/34:22 pmRAP - STL
1 stop3h 55mDelta
Deal found 4/27$348
Fri 5/36:40 amRAP - STL
2 stops10h 23mDelta
Deal found 4/27$363
Sat 8/104:25 pmRAP - STL
1 stop4h 04mDelta
Deal found 4/27$449
Sat 8/1010:24 amRAP - STL
2 stops11h 56mAmerican Airlines
Deal found 4/27$481
Tue 9/1711:25 amRAP - STL
3 stops21h 29mUnited Airlines
Deal found 4/27$512

Find flights from Rapid City to St. Louis within your budget

Customize your flight search to find flights from Rapid City to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$372 - $531

Route

Depart

Return

Price

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Wed 6/19

1 stop18h 56m

Lambert-St Louis

Wed 6/26

1 stop9h 06m

$372

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Wed 6/12

1 stop4h 27m

Lambert-St Louis

Wed 6/19

1 stop6h 37m

$378

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Tue 6/25

1 stop18h 56m

Lambert-St Louis

Tue 7/2

1 stop9h 06m

$391

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Tue 7/9

1 stop7h 18m

Lambert-St Louis

Wed 7/17

1 stop8h 52m

$407

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Tue 6/25

2 stops10h 18m

Lambert-St Louis

Tue 7/2

1 stop9h 06m

$411

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Tue 7/9

2 stops10h 04m

Lambert-St Louis

Wed 7/17

1 stop8h 52m

$414

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Wed 6/19

1 stop4h 27m

Lambert-St Louis

Wed 6/26

2 stops10h 14m

$430

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Wed 6/26

1 stop6h 16m

Lambert-St Louis

Thu 7/4

1 stop4h 58m

$504

Rapid CityLambert-St Louis

RAP - STL

RAPSTL

Rapid City

Fri 5/24

1 stop24h 56m

Lambert-St Louis

Sun 5/26

1 stop6h 13m

$531

Flights are sorted by cheapest first

Deals found on 4/27

When is the cheapest time to fly from Rapid City to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Rapid City to St. Louis. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Rapid City to St. Louis flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Rapid City to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Rapid City to St. Louis is currently $371 while a round-trip flight costs $426. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from Rapid City to St. Louis (average of $323). Flying from Rapid City to St. Louis in July is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$337

May

$350

June

$373

July

$378

August

$336

September

$323

October

$323

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated April 28, 2024.
Peruse reviews from past customers who have flown with American Airlines, United Airlines and Delta from Rapid City to St. Louis to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,932 reviews
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,221 reviews
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,844 reviews
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

Find useful and relevant information for your journey from Rapid City to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Rapid City to St. Louis for under $400 on Cheapflights?

    Yes, there are multiple flights from Rapid City to St. Louis for under $400. The cheapest flight booked recently is on American Airlines for just $372, but on average you can expect to pay $509.

  • Are there last-minute flights available from Rapid City to St. Louis for under $400?

    There are currently 6+ open flights from Rapid City to St. Louis within the next 7 days for less than $400.

  • What are the cheapest airlines flying from Rapid City to St. Louis round-trip?

    American Airlines, at $372, was found to be the cheapest airline from Rapid City to St. Louis.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 30% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Rapid City to St. Louis one-way?

    $243 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $268 and $481, respectively.

  • What does RAP to STL mean?

    Rapid City Airport is RAP and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Rapid City to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Rapid City to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Rapid City to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Rapid City to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Rapid City to St. Louis that include hotel bookings?

    Yes. In addition to deals on Rapid City to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to St. Louis.

  • Can I find deals for business class flights from Rapid City to St. Louis?

    Yes. Cheapflights offers flight deals from Rapid City to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Rapid City to St. Louis that allow pets onboard?

    Many airlines flying from Rapid City to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Rapid City to St. Louis?

    Yes, you can often find last-minute deals on Rapid City to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Rapid City to St. Louis flight deals updated?

    The Rapid City to St. Louis flight deals you see on this page were last updated on 4/27.

See more FAQs

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Alternative routes for Rapid City to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Rapid City to St. Louis

Discover the top 2 airlines that operate flights from Rapid City to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$397FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$315Average$462FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Rapid City to St. Louis by cabin class

Find flights from Rapid City to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Rapid City to St. Louis?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from Rapid City today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Rapid City to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Rapid City.

Can Cheapflights find flights from Rapid City to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Rapid City? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Rapid City to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Rapid City today and book when prices fit your budget.

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