Flights to Western South Dakota from Washington - $139

View $139 flight on Fri, Aug 22, 2025Opens in a new window

Popular airlines from Washington to Western South Dakota

  • United

    United

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Sun Country Airlines

    Sun Country Airlines

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Cheap Flights from Washington to Western South Dakota (WAS-RAP)

Prices were available within the past 7 days and start at $139 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 20 - Mon, Aug 25
IAD
Washington
PIR
Pierre
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 20 from Washington to Pierre, returning Mon, Aug 25, priced at $254 found 3 days ago
Delta
Fri, Oct 24 - Mon, Oct 27
BWI
Baltimore
RAP
Rapid City
$269 Roundtrip, just found
$269
Roundtrip
just found
Select Delta flight, departing Fri, Oct 24 from Baltimore to Rapid City, returning Mon, Oct 27, priced at $269 just found
Delta
Tue, Aug 19 - Wed, Aug 27
DCA
Washington
RAP
Rapid City
$269 Roundtrip, just found
$269
Roundtrip
just found
Select Delta flight, departing Tue, Aug 19 from Washington to Rapid City, returning Wed, Aug 27, priced at $269 just found
United
Fri, Aug 22 - Fri, Aug 29
IAD
Washington
RAP
Rapid City
$269 Roundtrip, just found
$269
Roundtrip
just found
Select United flight, departing Fri, Aug 22 from Washington to Rapid City, returning Fri, Aug 29, priced at $269 just found
American Airlines
Fri, Aug 22 - Fri, Aug 29
DCA
Washington
RAP
Rapid City
$269 Roundtrip, just found
$269
Roundtrip
just found
Select American Airlines flight, departing Fri, Aug 22 from Washington to Rapid City, returning Fri, Aug 29, priced at $269 just found
Sun Country Airlines
Mon, Aug 18 - Fri, Aug 22
BWI
Baltimore
RAP
Rapid City
$307 Roundtrip, found 1 day ago
$307
Roundtrip
found 1 day ago
Select Sun Country Airlines flight, departing Mon, Aug 18 from Baltimore to Rapid City, returning Fri, Aug 22, priced at $307 found 1 day ago

Find the cheapest month to fly from Washington (WAS) to Rapid City (RAP)

January is typically the cheapest month to fly

From $259 - $476 per traveler.

Graph displaying average flight prices per month

Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rapid City Regional RAP. Flights from $378
RAP
Rapid City Regional
Flights from $378
Select flight to Pierre Regional PIR. Cheapest option available. Flights from $317
PIR
Pierre Regional
Cheapest
Flights from $317
Select flight to Chadron Municipal CDR. Flights from $541
CDR
Chadron Municipal
Flights from $541
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