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Rapid City

$133+ 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:01 amSEA - RAP
1 stop9h 28mMultiple Airlines
Fri 12/57:35 pmRAP - SEA
1 stop22h 01mMultiple Airlines
Deal found 10/26$228
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:37 pmSEA - RAP
2 stops30h 17mMultiple Airlines
Sat 11/157:16 pmRAP - SEA
1 stop14h 02mMultiple Airlines
Deal found 10/26$235
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/95:25 amGEG - RAP
1 stop5h 01mUnited Airlines
Tue 12/162:55 pmRAP - GEG
1 stop7h 04mUnited Airlines
Deal found 10/28$249
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:58 pmSEA - RAP
2 stops18h 56mMultiple Airlines
Sat 11/157:16 pmRAP - SEA
1 stop14h 02mMultiple Airlines
Deal found 10/26$251
This Delta deal was found by Cheapflights users on 10/28. 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 12/96:00 amGEG - RAP
1 stop8h 45mDelta
Tue 12/162:51 pmRAP - GEG
2 stops10h 08mDelta
Deal found 10/28$254
This Delta deal was found by Cheapflights users on 10/28. 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 12/412:32 amPDX - RAP
1 stop8h 50mDelta
Wed 12/102:51 pmRAP - PDX
1 stop7h 01mDelta
Deal found 10/28$259
This Delta deal was found by Cheapflights users on 10/26. 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.
Sat 12/66:00 amSEA - RAP
1 stop7h 09mDelta
Mon 12/154:25 pmRAP - SEA
1 stop8h 59mDelta
Deal found 10/26$259
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:25 pmSEA - RAP
2 stops27h 20mMultiple Airlines
Thu 12/1110:19 pmRAP - SEA
1 stop12h 47mMultiple Airlines
Deal found 10/26$260
This Delta deal was found by Cheapflights users on 10/27. 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 11/112:09 pmGEG - RAP
1 stop7h 30mDelta
Sat 11/152:51 pmRAP - GEG
2 stops8h 50mDelta
Deal found 10/27$264
This Delta deal was found by Cheapflights users on 10/26. 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.
Sat 12/61:40 pmSEA - RAP
2 stops8h 06mDelta
Sat 12/136:05 amRAP - SEA
1 stop7h 53mDelta
Deal found 10/26$264
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:35 amSEA - RAP
1 stop8h 19mMultiple Airlines
Sat 11/157:16 pmRAP - SEA
1 stop14h 02mMultiple Airlines
Deal found 10/26$268
This Delta deal was found by Cheapflights users on 10/26. 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.
Sat 12/611:15 amSEA - RAP
2 stops10h 31mDelta
Thu 12/116:05 amRAP - SEA
2 stops11h 49mDelta
Deal found 10/26$269

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$228
(Kiwi.com)

One-way from

$133
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$661
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. 14% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 29, 2025.
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 12/9

5:25 am-11:26 am

1 stop5h 01m

Rapid City

Tue 12/16

2:55 pm-8:59 pm

1 stop7h 04m

$249

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 12/9

2:15 pm-10:46 pm

1 stop7h 31m

Rapid City

Tue 12/16

2:51 pm-8:10 pm

1 stop6h 19m

$249

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 3/3

6:30 am-3:14 pm

1 stop7h 44m

Rapid City

Sat 3/7

4:00 pm-11:16 pm

1 stop8h 16m

$249

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 12/4

12:32 am-10:22 am

1 stop8h 50m

Rapid City

Wed 12/10

2:51 pm-8:52 pm

1 stop7h 01m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 3/6

12:55 am-10:05 am

1 stop8h 10m

Rapid City

Wed 3/11

10:40 am-4:51 pm

1 stop7h 11m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 12/6

6:00 am-2:09 pm

1 stop7h 09m

Rapid City

Tue 12/16

6:05 am-12:58 pm

1 stop7h 53m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 12/11

1:45 pm-10:46 pm

1 stop8h 01m

Rapid City

Tue 12/16

6:05 am-12:58 pm

1 stop7h 53m

$259

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 11/11

2:09 pm-10:39 pm

1 stop7h 30m

Rapid City

Sat 11/15

2:51 pm-8:03 pm

1 stop6h 12m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 12/4

12:32 am-10:22 am

1 stop8h 50m

Rapid City

Thu 12/11

2:51 pm-12:15 am

2 stops10h 24m

$264

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 12/4

1:47 pm-10:46 pm

1 stop7h 59m

Rapid City

Tue 12/9

2:51 pm-11:25 pm

2 stops9h 34m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 35 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 December is currently the most expensive (average of $459). 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 WA to RAP?

Find hourly flight availability from Washington to Rapid City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

It’s typically best to fly out from State of Washington to Rapid City in the evening. Doing so could potentially save you 31% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from State of Washington to Rapid City?

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 5h 01m. United Airlines provides one of the quickest options available for as low as $249. 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 Portland - Rapid City. You may also consider Seattle/Tacoma Intl - Rapid City or Spokane - 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 December is currently the most expensive (average of $459). 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
Deadwood
Keystone
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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Top 4 airlines flying from Washington to Rapid City

Discover the top 4 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$252Average$487FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$367FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$353FlexibilityNo cancel feeOn-timeN/A

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