In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular airlines that fly from South Dakota to St. Louis?

Consider American Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from South Dakota to St. Louis.

What is the cheapest month to fly from South Dakota to St. Louis?

The best pricing can be found in the month of April. Prices to St. Louis from South Dakota average $340. You can even find prices in April for less than $340, as users have found deals to St. Louis from as low as $228. The month of December appears to be one of the more expensive times to travel to St. Louis from South Dakota. Flying in the targeted month can save you up to 37%.

What airport do you fly into for flights to St. Louis from South Dakota?

If you book a flight to St. Louis from South Dakota, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

Can I find deals for flights from South Dakota to St. Louis that include hotel bookings?

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

How can I find direct flights from South Dakota to St. Louis?

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

Can I find deals for business class flights from South Dakota to St. Louis?

Yes. Cheapflights offers flight deals from South Dakota 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.

$228+ Flights from South Dakota to St. Louis

Q: How much does it cost to fly round-trip from South Dakota to St. Louis?

Airfare is below average for this route at the moment. South Dakota to St. Louis flights typically cost between $253 and $418 in September. The cheapest round-trip price found within the last 3 days was $229 on United Airlines (Sep 10-Sep 13).

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Cheap flight deals from South Dakota to St. Louis

Round-trip from	$229 (United Airlines)
One-way from	$228 (American Airlines)
Popular in	December
Cheapest in	April
Average price	$288

From South Dakota to Lambert-St Louis

Search Deals

One-way flight from South Dakota to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($49 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from South Dakota to St. Louis

Cheapest flights from South Dakota to St. Louis
Explore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

mié. 9/105:06 pmFSD - STL

1 stop6h 47mUnited Airlines

sáb. 9/135:30 pmSTL - FSD

1 stop4h 42mUnited Airlines

Deal found 8/13

$229

dom. 8/172:57 pmFSD - STL

1 stop18h 14mFrontier

mar. 8/197:54 pmSTL - FSD

1 stop18h 18mFrontier

Deal found 8/13

$246

jue. 8/146:03 pmFSD - STL

1 stop5h 48mAmerican Airlines

sáb. 8/167:23 amSTL - FSD

1 stop4h 26mAmerican Airlines

Deal found 8/14

$289

vie. 8/295:00 amFSD - STL

1 stop3h 36mDelta

mar. 9/25:30 pmSTL - FSD

1 stop6h 16mDelta

Deal found 8/13

$299

mié. 9/101:19 pmFSD - STL

1 stop6h 56mAmerican Airlines

sáb. 9/136:29 amSTL - FSD

2 stops11h 43mAmerican Airlines

Deal found 8/13

$327

vie. 10/245:05 pmFSD - STL

1 stop6h 13mAmerican Airlines

dom. 10/267:01 amSTL - FSD

1 stop5h 46mAmerican Airlines

Deal found 8/12

$334

vie. 8/296:03 pmFSD - STL

1 stop5h 48mAmerican Airlines

dom. 9/77:16 amSTL - FSD

1 stop5h 23mAmerican Airlines

Deal found 8/12

$343

mié. 9/102:08 pmFSD - STL

1 stop6h 38mUnited Airlines

vie. 9/125:15 amSTL - FSD

1 stop5h 26mUnited Airlines

Deal found 8/13

$348

jue. 8/142:57 pmFSD - STL

1 stop18h 14mFrontier

sáb. 8/162:52 pmSTL - FSD

2 stops23h 10mFrontier

Deal found 8/14

$370

dom. 9/75:39 pmRAP - STL

1 stop26h 05mMultiple Airlines

vie. 9/127:55 pmSTL - RAP

2 stops45h 54mMultiple Airlines

Deal found 8/13

$418

dom. 9/75:59 pmRAP - STL

1 stop4h 54mUnited Airlines

vie. 9/125:15 amSTL - RAP

1 stop4h 51mUnited Airlines

Deal found 8/13

$481

sáb. 10/117:00 amRAP - STL

1 stop12h 46mUnited Airlines

vie. 10/174:50 pmSTL - RAP

1 stop4h 44mUnited Airlines

Deal found 8/14

$512

Best flights from South Dakota to St. Louis
Discover carefully curated flight deals from South Dakota to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

mié. 9/105:06 pmFSD - STL

1 stop6h 47mUnited Airlines

sáb. 9/135:30 pmSTL - FSD

1 stop4h 42mUnited Airlines

Deal found 8/13

$229

mié. 9/105:00 amFSD - STL

1 stop5h 37mDelta

sáb. 9/136:00 amSTL - FSD

1 stop6h 11mDelta

Deal found 8/13

$229

mié. 9/101:19 pmFSD - STL

1 stop6h 56mAmerican Airlines

sáb. 9/136:29 amSTL - FSD

2 stops11h 43mAmerican Airlines

Deal found 8/13

$327

dom. 9/75:39 pmRAP - STL

1 stop26h 05mMultiple Airlines

vie. 9/127:55 pmSTL - RAP

2 stops45h 54mMultiple Airlines

Deal found 8/13

$418

vie. 1/165:15 amFSD - STL

1 stop3h 39mDelta

dom. 1/186:30 amSTL - FSD

1 stop6h 05mDelta

Deal found 8/13

$229

vie. 8/295:00 amFSD - STL

1 stop3h 36mDelta

mar. 9/25:30 pmSTL - FSD

1 stop6h 16mDelta

Deal found 8/13

$299

mié. 12/35:32 amFSD - STL

1 stop5h 34mAmerican Airlines

dom. 12/74:08 pmSTL - FSD

1 stop4h 52mAmerican Airlines

Deal found 8/13

$334

mié. 9/102:08 pmFSD - STL

1 stop6h 38mUnited Airlines

vie. 9/125:15 amSTL - FSD

1 stop5h 26mUnited Airlines

Deal found 8/13

$348

vie. 10/245:05 pmFSD - STL

1 stop6h 13mAmerican Airlines

dom. 10/267:01 amSTL - FSD

1 stop5h 46mAmerican Airlines

Deal found 8/12

$334

vie. 8/296:03 pmFSD - STL

1 stop5h 48mAmerican Airlines

dom. 9/77:16 amSTL - FSD

1 stop5h 23mAmerican Airlines

Deal found 8/12

$343

vie. 1/1612:27 pmFSD - STL

2 stops11h 05mAmerican Airlines

dom. 1/185:57 amSTL - FSD

1 stop5h 38mAmerican Airlines

Deal found 8/13

$357

dom. 9/75:59 pmRAP - STL

1 stop4h 54mUnited Airlines

vie. 9/125:15 amSTL - RAP

1 stop4h 51mUnited Airlines

Deal found 8/13

$481

Last-minute flights from South Dakota to St. Louis
Discover last-minute flight deals from South Dakota to St. Louis. Data last updated agosto 14, 2025 and is based on user searches.

jue. 8/146:03 pmFSD - STL

1 stop5h 48mAmerican Airlines

sáb. 8/167:23 amSTL - FSD

1 stop4h 26mAmerican Airlines

Deal found 8/14

$289

jue. 8/142:57 pmFSD - STL

1 stop18h 14mFrontier

sáb. 8/162:52 pmSTL - FSD

2 stops23h 10mFrontier

Deal found 8/14

$370

dom. 8/172:57 pmFSD - STL

1 stop18h 14mFrontier

mar. 8/197:54 pmSTL - FSD

1 stop18h 18mFrontier

Deal found 8/13

$246

mar. 8/267:01 amFSD - STL

1 stop4h 49mAmerican Airlines

jue. 8/287:59 pmSTL - FSD

1 stop4h 29mAmerican Airlines

Deal found 8/13

$590

vie. 8/295:00 amFSD - STL

1 stop3h 36mDelta

mar. 9/25:30 pmSTL - FSD

1 stop6h 16mDelta

Deal found 8/13

$299

vie. 8/296:03 pmFSD - STL

1 stop5h 48mAmerican Airlines

dom. 9/77:16 amSTL - FSD

1 stop5h 23mAmerican Airlines

Deal found 8/12

$343

dom. 9/75:39 pmRAP - STL

1 stop26h 05mMultiple Airlines

vie. 9/127:55 pmSTL - RAP

2 stops45h 54mMultiple Airlines

Deal found 8/13

$418

dom. 9/75:59 pmRAP - STL

1 stop4h 54mUnited Airlines

vie. 9/125:15 amSTL - RAP

1 stop4h 51mUnited Airlines

Deal found 8/13

$481

mié. 9/105:06 pmFSD - STL

1 stop6h 47mUnited Airlines

sáb. 9/135:30 pmSTL - FSD

1 stop4h 42mUnited Airlines

Deal found 8/13

$229

mié. 9/101:19 pmFSD - STL

1 stop6h 56mAmerican Airlines

sáb. 9/136:29 amSTL - FSD

2 stops11h 43mAmerican Airlines

Deal found 8/13

$327

mié. 9/102:08 pmFSD - STL

1 stop6h 38mUnited Airlines

vie. 9/125:15 amSTL - FSD

1 stop5h 26mUnited Airlines

Deal found 8/13

$348

One-way flights from South Dakota to St. Louis
Search for one-way flight options from South Dakota to St. Louis. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

jue. 10/231:32 pmFSD - STL

1 stop4h 50mAmerican Airlines

Deal found 8/12

$228

jue. 10/233:19 pmFSD - STL

2 stops20h 24mFrontier

Deal found 8/12

$252

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

mié. 9/10

5:06 pm-11:53 pm

1 stop6h 47m

Lambert-St Louis

sáb. 9/13

5:30 pm-10:12 pm

1 stop4h 42m

$229

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

mié. 9/10

5:00 am-10:37 am

1 stop5h 37m

Lambert-St Louis

sáb. 9/13

6:00 am-12:11 pm

1 stop6h 11m

$229

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

vie. 1/16

5:15 am-8:54 am

1 stop3h 39m

Lambert-St Louis

dom. 1/18

6:30 am-12:35 pm

1 stop6h 05m

$229

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

vie. 8/29

5:00 am-8:36 am

1 stop3h 36m

Lambert-St Louis

mar. 9/2

5:30 pm-11:46 pm

1 stop6h 16m

$299

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

mié. 9/10

1:19 pm-8:15 pm

1 stop6h 56m

Lambert-St Louis

sáb. 9/13

6:29 am-6:12 pm

2 stops11h 43m

$327

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

mié. 12/3

5:32 am-11:06 am

1 stop5h 34m

Lambert-St Louis

dom. 12/7

4:08 pm-9:00 pm

1 stop4h 52m

$334

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

vie. 10/24

5:05 pm-11:18 pm

1 stop6h 13m

Lambert-St Louis

dom. 10/26

7:01 am-12:47 pm

1 stop5h 46m

$334

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

vie. 8/29

6:03 pm-11:51 pm

1 stop5h 48m

Lambert-St Louis

dom. 9/7

7:16 am-12:39 pm

1 stop5h 23m

$343

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

mié. 9/10

2:08 pm-8:46 pm

1 stop6h 38m

Lambert-St Louis

vie. 9/12

5:15 am-10:41 am

1 stop5h 26m

$348

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

vie. 1/16

12:27 pm-11:32 pm

2 stops11h 05m

Lambert-St Louis

dom. 1/18

5:57 am-11:35 am

1 stop5h 38m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 15 results

Best time to book a flight from South Dakota to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Dakota with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Dakota to St. Louis

What is the cheapest month to book a flight from South Dakota to St. Louis?

Currently, August is the cheapest month in which you can book a flight from South Dakota to St. Louis (average of $311). Flying from South Dakota to St. Louis in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from SD to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Dakota to St. Louis as you normally would.

How much does it cost to fly round-trip from South Dakota to St. Louis?

Related info for your journey

What airport do you fly into for flights to St. Louis from South Dakota?
If you book a flight to St. Louis from South Dakota, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.
Can I find deals for flights from South Dakota to St. Louis that include hotel bookings?
Yes. In addition to deals on South Dakota to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from South Dakota to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to St. Louis.
Can I find deals for business class flights from South Dakota to St. Louis?
Yes. Cheapflights offers flight deals from South Dakota 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.
What is the cheapest month to book a flight from South Dakota to St. Louis?
Currently, August is the cheapest month in which you can book a flight from South Dakota to St. Louis (average of $311). Flying from South Dakota to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

O'Fallon

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Eureka

St. Peters

Glencoe

Alton

Chesterfield

Farmington

Festus

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Top 3 airlines flying from South Dakota to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$228	Average$318	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$241	Average$398	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$253	Average$308	FlexibilityNo cancel fee	On-time71%

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$228+ Cheap flights from South Dakota to St. Louis (STL)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from South Dakota to St. Louis with Cheapflights

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Cheap flight deals from South Dakota to St. Louis

Keep the following information in mind while searching for South Dakota to St. Louis flight deals. Data was last updated agosto 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from South Dakota to St. Louis

Cheapest flights from South Dakota to St. LouisExplore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Explore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to St. Louis that are best for you.

Best time to book a flight from South Dakota to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Dakota with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from South Dakota to St. Louis

What is the cheapest month to book a flight from South Dakota to St. Louis?

What is the cheapest time of day to fly from SD to STL?

Find hourly flight availability from South Dakota to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

How much does it cost to fly round-trip from South Dakota to St. Louis?

Related info for your journey

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

What airport do you fly into for flights to St. Louis from South Dakota?

Can I find deals for flights from South Dakota to St. Louis that include hotel bookings?

How can I find direct flights from South Dakota to St. Louis?

Can I find deals for business class flights from South Dakota to St. Louis?

What is the cheapest month to book a flight from South Dakota to St. Louis?

Traveling to a place near St. Louis?

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Alternative routes for South Dakota to St. Louis

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Top 3 airlines flying from South Dakota to St. Louis

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Cheapest flights from South Dakota to St. Louis
Explore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.