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Rapid City

$183+ Cheap flights from Washington to Rapid City (RAP)

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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Washington to Rapid City

Cheapest flights from Washington to Rapid City
Explore the most affordable flight options available from Washington to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 am
GEG
-
RAP
1 stop5h 05m
United Airlines
Fri 3/1310:55 am
RAP
-
GEG
1 stop7h 31m
United Airlines
Deal found 2/4$269
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:15 pm
GEG
-
RAP
1 stop7h 10m
Delta
Tue 3/244:01 pm
RAP
-
GEG
2 stops8h 49m
Delta
Deal found 2/4$274
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:00 am
PSC
-
RAP
1 stop7h 13m
United Airlines
Tue 2/242:52 pm
RAP
-
PSC
1 stop6h 58m
United Airlines
Deal found 2/4$279
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:45 am
GEG
-
RAP
1 stop7h 59m
Delta
Tue 2/246:00 am
RAP
-
GEG
1 stop8h 08m
Delta
Deal found 2/5$279
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:00 am
SEA
-
RAP
1 stop7h 13m
United Airlines
Tue 3/35:20 am
RAP
-
SEA
1 stop5h 29m
United Airlines
Deal found 2/5$279
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:00 am
PDX
-
RAP
1 stop6h 35m
United Airlines
Tue 6/1610:13 am
RAP
-
PDX
1 stop6h 00m
United Airlines
Deal found 2/6$295
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:00 am
PSC
-
RAP
1 stop7h 13m
United Airlines
Tue 2/242:52 pm
RAP
-
PSC
1 stop6h 58m
United Airlines
Deal found 2/5$301
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:00 pm
PDX
-
RAP
1 stop5h 16m
United Airlines
Tue 2/247:00 am
RAP
-
PDX
1 stop7h 44m
United Airlines
Deal found 2/4$309
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:45 am
GEG
-
RAP
1 stop7h 59m
Delta
Mon 2/236:00 am
RAP
-
GEG
1 stop8h 08m
Delta
Deal found 2/6$309
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/203:16 pm
SEA
-
RAP
1 stop6h 00m
United Airlines
Tue 2/245:20 am
RAP
-
SEA
1 stop5h 29m
United Airlines
Deal found 2/5$309
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/201:27 pm
PDX
-
RAP
2 stops8h 00m
Delta
Sun 2/226:00 am
RAP
-
PDX
1 stop7h 44m
Delta
Deal found 2/6$314
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:00 am
PDX
-
RAP
1 stop6h 35m
United Airlines
Sun 8/25:53 pm
RAP
-
PDX
1 stop6h 02m
United Airlines
Deal found 2/6$317

Find flight deals from Washington to Rapid City

Keep the following information in mind while searching for Washington to Rapid City flight deals. Data was last updated February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$183
(Sun Country Air)

Popular in

December

Cheapest in

January

Average price

$358
Provider with most accurate pricing for Seattle/Tacoma Intl-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Rapid City flights.
Search Deals
From Washington to Rapid City
Search Deals
One-way flight from Washington to Rapid City
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Rapid City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from Washington to Rapid City that are best for you.

Fly from

Washington

Fly to

Rapid City

Route

Depart

Return

Price

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 3/17

6:00 am-3:18 pm

1 stop8h 18m

Rapid City

Tue 3/24

4:01 pm-9:29 pm

1 stop6h 28m

$269

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Wed 4/15

1:43 pm-8:44 pm

1 stop6h 01m

Rapid City

Sat 4/18

4:15 pm-9:11 pm

1 stop5h 56m

$269

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Wed 6/3

4:03 pm-10:24 pm

1 stop5h 21m

Rapid City

Sat 6/6

11:15 am-3:05 pm

1 stop4h 50m

$269

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 3/6

3:30 pm-10:27 pm

1 stop5h 57m

Rapid City

Sun 3/8

6:00 am-12:16 pm

1 stop7h 16m

$279

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Sat 2/21

12:44 pm-8:44 pm

1 stop7h 00m

Rapid City

Wed 2/25

7:00 am-1:43 pm

1 stop7h 43m

$279

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 2/20

6:45 am-3:44 pm

1 stop7h 59m

Rapid City

Tue 2/24

6:00 am-1:08 pm

1 stop8h 08m

$279

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Thu 2/19

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 2/24

2:52 pm-8:50 pm

1 stop6h 58m

$279

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Sat 2/21

2:05 pm-10:27 pm

1 stop7h 22m

Rapid City

Wed 2/25

6:00 am-1:08 pm

1 stop8h 08m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 2/27

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/3

5:20 am-9:49 am

1 stop5h 29m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 6/9

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Tue 6/16

10:13 am-3:13 pm

1 stop6h 00m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 47 results
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Best time to book a flight from Washington to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Washington 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 Washington to Rapid City

What is the cheapest month to book a flight from State of Washington to Rapid City?

Currently, March is the cheapest month in which you can book a flight from State of Washington to Rapid City (average of $179). Flying from State of Washington to Rapid City in January is currently the most expensive (average of $305). 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.

Related info for your journey

Find useful and relevant information for your journey from Washington to Rapid City. 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 Rapid City from Washington?

    Rapid City (RAP) is the airport you will fly into if you book a flight from Washington to Rapid City. It is only a 9.0 mi journey from Rapid City (RAP) to Rapid City’s city center.

  • How long is the flight from State of Washington to Rapid City?

    A quick flight from State of Washington to Rapid City can take about 6h 01m. Delta provides one of the quickest options available for as low as $269. State of Washington and Rapid City are separated by a distance of 738 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to Rapid City?

    The most popular route from State of Washington to Rapid City is Seattle/Tacoma Intl - Rapid City. You may also consider Portland - Rapid City or Pasco Tri Cities - Rapid City.

  • Can I find deals for flights from Washington to Rapid City that include hotel bookings?

    Yes. In addition to deals on Washington to Rapid City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Rapid City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Rapid City.

  • Can I find deals for business class flights from Washington to Rapid City?

    Yes. Cheapflights offers flight deals from Washington to Rapid City 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 State of Washington to Rapid City?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Rapid City (average of $179). Flying from State of Washington to Rapid City in January is currently the most expensive (average of $305). 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

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Sturgis
Spearfish

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Alternative routes for Washington to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
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O'Hare Intl to Sioux Falls flights
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Dulles Intl to Sioux Falls flights
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Top 3 airlines flying from Washington to Rapid City

Discover the top 3 airlines that operate flights from Washington to Rapid City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
DeltaCheapest$209Average$350FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$252Average$460FlexibilityNo cancel feeOn-time69%

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