Cheap flights from St. Louis to Rapid City from $175
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Rapid City departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from St. Louis to Rapid City
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American Airlines flights from St. Louis to Rapid City
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How to get the cheapest flight ticket from St. Louis to Rapid City
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Rapid City?
What is the cheapest month to fly to Rapid City?
The month of November is, on average, the cheapest month to fly to Rapid City from St. Louis, with most prices found around $248. If you aren’t able to travel to Rapid City during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $278.
What is the cheapest day to depart on your flight to Rapid City?
According to our data, Friday is the cheapest day to fly to Rapid City from St. Louis. The lowest ticket price found for a Friday departure recently was $363. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Thursday, with ticket prices averaging around $562.
What is the cheapest time of day to depart on your flight to Rapid City?
Our most recent data shows that the best time of day to fly to Rapid City is in the afternoon. Flights from St. Louis to Rapid City during this time can be as low as $403. Flights in the morning are often more expensive with an average ticket price of $473.
How far in advance should I book a flight to Rapid City?
You are more likely to see cheaper flights to Rapid City from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from St. Louis for as low as $251 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Rapid City?
American Airlines, Delta, and United Airlines are the most popular carriers operating from Lambert-St Louis to Rapid City
What airlines fly to Rapid City?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Rapid City from St. Louis according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Rapid City. Keep in mind that there are 3 different airlines that fly to Rapid City on a routine basis, so you have a few additional options to choose from.
When to book flights from St. Louis to Rapid City
Cheap St. Louis to Rapid City (STL to RAP) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Rapid City
How far is Lambert-St Louis to Rapid City by plane?
There are 772.0 mi between Lambert-St Louis and Rapid City. Flights usually cover this in 4h 29m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Rapid City Airport?
Prices for flights from Lambert-St Louis Airport to Rapid City Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Rapid City Airport?
As of July 2025, there are 3 operators available to choose from for flights from Lambert-St Louis Airport to Rapid City Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Rapid City Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Rapid City Airport.
What documentation or ID do you need to fly to Rapid City Airport?
The necessary travel and health documents for your Rapid City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Rapid City?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Rapid City is United Airlines, representing 45% of all bookings. The subsequent popular airlines are American Airlines at 29% and Delta at 26%.
Best airlines flying from St. Louis to Rapid City
Compare and see reviews for airlines that fly from St. Louis to Rapid City with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $248 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $258 | Free Cancellation | Rating 7.4 8,861 reviews |
Traveling to a place near Rapid City?
Book flights to Rapid City if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from St. Louis to Rapid City?
It is quick and easy to find St. Louis to Rapid City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rapid City that suits you.
Can I find flights from St. Louis to Rapid City with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Rapid City flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Rapid City?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Rapid City.
I’m not ready to book a flight from St. Louis to Rapid City right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Rapid City flights. All you need is a valid email address and we will do the rest; it is that quick and easy.