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RAP - STL

Find cheap flights from Rapid City to St. Louis from $264

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rapid City to St. Louis 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.
1 adult
0 bags
Sun 5/19
Sun 5/26

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,662 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rapid City to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 4:20 pmRAP-STL
9h 20m2 stops
10:05 am - 1:53 pmSTL-RAP
4h 48m1 stop
$335Delta
Find Deal
Tue, Jun 25 - Tue, Jul 2
4:28 pm - 9:55 pmRAP-STL
4h 27m1 stop
10:05 am - 1:53 pmSTL-RAP
4h 48m1 stop
$390Delta
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Tue, Jun 25 - Tue, Jul 2
4:31 pm - 9:36 pmRAP-STL
4h 05m1 stop
5:59 pm - 11:03 pmSTL-RAP
6h 04m1 stop
$438Delta
Find Deal
Tue, Jul 9 - Wed, Jul 17
8:55 am - 4:29 pmRAP-STL
6h 34m1 stop
4:36 pm - 8:34 pmSTL-RAP
4h 58m1 stop
$502United Airlines
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Wed, Jun 26 - Thu, Jul 4
2:37 pm - 9:53 amRAP-STL
18h 16m1 stop
5:15 am - 10:16 amSTL-RAP
6h 01m1 stop
$503American Airlines
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Fri, Jun 7 - Sun, Jun 9
12:12 pm - 9:59 pmRAP-STL
8h 47m2 stops
10:19 am - 9:40 pmSTL-RAP
12h 21m1 stop
$528American Airlines
Find Deal
Tue, Jul 9 - Wed, Jul 17
7:00 am - 12:49 pmRAP-STL
4h 49m1 stop
4:36 pm - 10:04 pmSTL-RAP
6h 28m1 stop
$536United Airlines
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Sat, Jun 29 - Sat, Jul 6
5:30 am - 8:49 pmRAP-STL
14h 19m1 stop
1:42 pm - 7:11 pmSTL-RAP
6h 29m1 stop
$555United Airlines
Find Deal
Fri, May 24 - Sun, May 26
12:33 pm - 7:17 pmRAP-STL
5h 44m1 stop
6:00 am - 4:10 pmSTL-RAP
11h 10m2 stops
$571American Airlines
Find Deal
Sat, Jun 29 - Sat, Jul 6
7:00 am - 12:46 pmRAP-STL
4h 46m1 stop
10:19 am - 8:34 pmSTL-RAP
11h 15m2 stops
$588United Airlines
Find Deal
Wed, Jun 26 - Thu, Jul 4

Flights from Rapid City to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Rapid City to St. Louis to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Rapid City to St. Louis clicked on KAYAK for each day over the last 12 months.
For Rapid City to St. Louis, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from St. Louis back to Rapid City, the best deals are generally found on Saturday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Rapid City to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Rapid City to St. Louis is November, where tickets cost $397 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $682 and $648 respectively.

Which airlines provide the cheapest flights from Rapid City to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on United Airlines ($264) and American Airlines ($348). The cheapest round-trip tickets were found on Delta ($335) and United Airlines ($502).

Good to know

Low season

April

High season

October

Cheapest flight

$264
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 15% 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Rapid City to St. Louis

  • What is the cheapest flight from Rapid City to St. Louis?

    In the last 3 days, the lowest price for a flight from Rapid City to St. Louis was $264 for a one-way ticket and $335 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Rapid City to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Rapid City to St. Louis?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Rapid City and St. Louis, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Rapid City to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Rapid City to St. Louis are Delta and United Airlines. With an average price for the route of $397 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $462 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Rapid City to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Rapid City to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Rapid City to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Rapid City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Rapid City to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Rapid City with another airline. Booking your flights between Rapid City and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Rapid City to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Rapid City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Rapid City to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Rapid City to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Rapid City to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11094 reviews
8.6crew
7.9comfort
8.2boarding
7.5food
8.0entertainment
Airline reviews

Seat back monitors and outlets were dead and not working.

8.0 ExcellentCarl, Apr 2024JFK - FLL
Read more about Delta reviews

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

I liked everything about the flight. The service was excellent!

Book cheap flights from Rapid City to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Rapid City to St. Louis found on KAYAK in the last 72 hours.
9/17Tue
1 stopUnited Airlines
11h 27mRAP-STL
$264
9/17Tue
2 stopsUnited Airlines
17h 23mRAP-STL
$338
4/26Fri
1 stopAmerican Airlines
6h 10mRAP-STL
$348
4/26Fri
2 stopsAmerican Airlines
9h 22mRAP-STL
$353
9/17Tue
3 stopsUnited Airlines
21h 29mRAP-STL
$512

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Rapid City - St. Louis Flights

Departure:

Rapid City (RAP)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Rapid City

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