Flights from St. Louis to Interior

Cheapest flights from St. Louis

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jun 21 - Tue, Jun 24

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$319 Roundtrip, found 22 hours ago

$319

Roundtrip

found 22 hours ago

Select United flight, departing Sat, Jun 21 from Lambert-St. Louis Intl. to Rapid City Regional, returning Tue, Jun 24, priced at $319 found 22 hours ago

Wed, Jun 18 - Tue, Jun 24

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$324 Roundtrip, found 22 hours ago

$324

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Tue, Jun 24, priced at $324 found 22 hours ago

Sat, Jun 21 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$324 Roundtrip, found 22 hours ago

$324

Roundtrip

found 22 hours ago

Select United flight, departing Sat, Jun 21 from Lambert-St. Louis Intl. to Rapid City Regional, returning Sat, Jun 28, priced at $324 found 22 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$325 Roundtrip, found 18 hours ago

$325

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $325 found 18 hours ago

Wed, Jun 18 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$329 Roundtrip, found 22 hours ago

$329

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Sat, Jun 28, priced at $329 found 22 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$347 Roundtrip, found 18 hours ago

$347

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $347 found 18 hours ago

Sat, Jun 21 - Mon, Jun 23

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$349 Roundtrip, found 22 hours ago

$349

Roundtrip

found 22 hours ago

Select American Airlines flight, departing Sat, Jun 21 from Lambert-St. Louis Intl. to Rapid City Regional, returning Mon, Jun 23, priced at $349 found 22 hours ago

Mon, Jun 16 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$354 Roundtrip, found 22 hours ago

$354

Roundtrip

found 22 hours ago

Select United flight, departing Mon, Jun 16 from Lambert-St. Louis Intl. to Rapid City Regional, returning Sat, Jun 28, priced at $354 found 22 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$374 Roundtrip, found 18 hours ago

$374

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $374 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$378 Roundtrip, found 18 hours ago

$378

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $378 found 18 hours ago

Fri, Jun 20 - Tue, Jun 24

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$395 Roundtrip, found 22 hours ago

$395

Roundtrip

found 22 hours ago

Select United flight, departing Fri, Jun 20 from Lambert-St. Louis Intl. to Rapid City Regional, returning Tue, Jun 24, priced at $395 found 22 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$395 Roundtrip, found 18 hours ago

$395

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $395 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$399 Roundtrip, found 18 hours ago

$399

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $399 found 18 hours ago

Fri, Jun 20 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$400 Roundtrip, found 22 hours ago

$400

Roundtrip

found 22 hours ago

Select United flight, departing Fri, Jun 20 from Lambert-St. Louis Intl. to Rapid City Regional, returning Sat, Jun 28, priced at $400 found 22 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$403 Roundtrip, found 18 hours ago

$403

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $403 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$409 Roundtrip, found 18 hours ago

$409

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $409 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$410 Roundtrip, found 18 hours ago

$410

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $410 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$413 Roundtrip, found 18 hours ago

$413

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $413 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$417 Roundtrip, found 18 hours ago

$417

Roundtrip

found 18 hours ago

Select United flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $417 found 18 hours ago

Wed, Jun 18 - Wed, Jun 25

STL

Lambert-St. Louis Intl.

RAP

Rapid City Regional

$679 Roundtrip, found 18 hours ago

$679

Roundtrip

found 18 hours ago

Select Delta flight, departing Wed, Jun 18 from Lambert-St. Louis Intl. to Rapid City Regional, returning Wed, Jun 25, priced at $679 found 18 hours ago