HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$269+ Cheap flights from Washington to Rapid City (RAP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Rapid City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/179:05 amSEA - RAP
2 stops10h 25mUnited Airlines
Sat 1/174:40 pmRAP - SEA
1 stop5h 35mUnited Airlines
Deal found 12/15$354
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/301:47 pmGEG - RAP
1 stop4h 25mUnited Airlines
Sat 1/33:35 pmRAP - GEG
1 stop6h 23mUnited Airlines
Deal found 12/14$379
This Delta deal was found by Cheapflights users on 12/15. 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 12/1611:55 pmSEA - RAP
1 stop9h 27mDelta
Sat 1/176:00 amRAP - SEA
2 stops13h 23mDelta
Deal found 12/15$408
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/163:45 pmSEA - RAP
1 stop5h 30mUnited Airlines
Sat 1/1710:45 amRAP - SEA
1 stop8h 41mUnited Airlines
Deal found 12/15$419
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/298:45 pmPDX - RAP
1 stop10h 29mMultiple Airlines
Sun 1/49:15 pmRAP - PDX
1 stop23h 35mMultiple Airlines
Deal found 12/15$453
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Mon 12/299:11 amPSC - RAP
1 stop23h 39mAllegiant Air
Fri 1/22:36 pmRAP - PSC
1 stop27h 03mAllegiant Air
Deal found 12/14$475
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/181:55 pmSEA - RAP
1 stop5h 54mUnited Airlines
Sat 1/172:40 pmRAP - SEA
1 stop7h 35mUnited Airlines
Deal found 12/15$479
This Delta deal was found by Cheapflights users on 12/15. 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 12/1811:15 amSEA - RAP
2 stops10h 31mDelta
Sat 1/176:00 amRAP - SEA
2 stops13h 23mDelta
Deal found 12/15$493
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/146:18 pmSEA - RAP
1 stop14h 22mMultiple Airlines
Sun 12/2110:20 pmRAP - SEA
2 stops21h 33mMultiple Airlines
Deal found 12/12$516
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Fri 12/268:45 pmPDX - RAP
1 stop10h 42mMultiple Airlines
Thu 1/19:06 pmRAP - PDX
1 stop23h 44mMultiple Airlines
Deal found 12/13$543
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/252:45 pmPDX - RAP
1 stop6h 14mUnited Airlines
Fri 1/25:15 amRAP - PDX
1 stop5h 46mUnited Airlines
Deal found 12/15$565
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Wed 12/241:47 pmGEG - RAP
1 stop4h 25mUnited Airlines
Wed 12/313:35 pmRAP - GEG
1 stop6h 23mUnited Airlines
Deal found 12/12$570

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(Delta)

Popular in

December

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
Highest demand for flights based on searches. 8% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 15, 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

Fri 1/30

6:30 am-3:25 pm

1 stop7h 55m

Rapid City

Sun 2/1

6:00 am-1:03 pm

1 stop8h 03m

$269

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 1/24

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Sat 1/31

2:40 pm-9:12 pm

1 stop7h 32m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 2/20

3:16 pm-10:16 pm

1 stop6h 00m

Rapid City

Tue 3/24

12:00 pm-6:04 pm

1 stop7h 04m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 1/24

1:30 pm-10:28 pm

2 stops7h 58m

Rapid City

Sat 1/31

6:00 am-12:46 pm

1 stop7h 46m

$284

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Mon 1/12

1:35 pm-10:29 pm

2 stops7h 54m

Rapid City

Mon 1/19

5:10 am-9:45 am

1 stop5h 35m

$284

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 1/1

2:11 pm-10:41 pm

1 stop7h 30m

Rapid City

Sat 1/10

6:00 am-12:46 pm

1 stop7h 46m

$294

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 3/13

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Wed 3/18

2:45 pm-9:14 pm

1 stop7h 29m

$313

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 1/14

1:53 pm-10:28 pm

1 stop7h 35m

Rapid City

Mon 1/19

10:54 am-5:35 pm

1 stop7h 41m

$339

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Sat 1/10

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Wed 1/14

2:40 pm-9:13 pm

1 stop7h 33m

$339

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 1/27

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Sat 1/31

2:40 pm-9:22 pm

1 stop7h 42m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 26 results
1
2
3

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 August is currently the most expensive (average of $293). 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 December 15, 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.

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 25m. Delta provides one of the quickest options available for as low as $279. State of Washington and Rapid City are separated by a distance of 960 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 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 August is currently the most expensive (average of $293). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Sioux Falls flights
Portland to Sioux Falls flights
Minneapolis to Rapid City flights
O'Hare Intl to Rapid City flights
Dallas/Fort Worth to Rapid City flights
Newark to Sioux Falls flights
O'Hare Intl to Sioux Falls flights
Dulles Intl to Rapid City flights
Charlotte to Sioux Falls flights
John F Kennedy Intl to Rapid City flights
LaGuardia to Sioux Falls flights
Austin to Sioux Falls flights
Seattle to Sioux Falls flights
Dallas/Fort Worth to Sioux Falls flights
Dulles Intl to Sioux Falls flights
Raleigh to Sioux Falls flights
Syracuse to Sioux Falls flights
LaGuardia to Rapid City flights
Baltimore to Sioux Falls flights
Denver to Rapid City flights
John F Kennedy Intl to Sioux Falls flights
Reagan-National to Sioux Falls flights
Hobby to Sioux Falls flights
Providence to Rapid City flights
Tampa to Sioux Falls flights
Pittsburgh to Rapid City flights
Raleigh to Rapid City flights
Norfolk to Sioux Falls flights
Portland to Rapid City flights
George Bush Intcntl to Sioux Falls flights
Ontario to Sioux Falls flights
Omaha to Rapid City flights
Los Angeles to Sioux Falls flights
Charlotte to Rapid City flights
Atlanta to Sioux Falls flights
Moline to Sioux Falls flights
Sky Harbor Intl to Sioux Falls flights
Reno to Sioux Falls flights
Honolulu to Rapid City flights
Newark to Rapid City flights
San Diego to Sioux Falls flights
Midway to Sioux Falls flights
Salt Lake City to Rapid City flights
Pittsburgh to Sioux Falls flights
Albany to Rapid City flights
Baltimore to Rapid City flights
Miami to Sioux Falls flights
Detroit to Rapid City flights
Philadelphia to Rapid City flights
Orlando to Sioux Falls flights

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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$252Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$367FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$350FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.