HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$174+ Cheap flights from Rapid City (RAP) to Washington

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SEA
nov. 28 — déc. 51
ven. 11/28
ven. 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City to Washington 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.

Find flight deals from Rapid City to Washington

Cheapest flights from Rapid City to Washington
Explore the most affordable flight options available from Rapid City to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octobre 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
jeu. 11/2010:10 pmRAP - SEA
1 stop16h 12mMultiple Airlines
lun. 11/249:53 pmSEA - RAP
1 stop10h 50mMultiple Airlines
Deal found 10/29$195
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 12/2110:20 pmRAP - SEA
1 stop12h 51mMultiple Airlines
lun. 12/227:48 pmSEA - RAP
1 stop11h 26mMultiple Airlines
Deal found 10/28$233
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
ven. 11/218:38 pmRAP - SEA
1 stop20h 59mMultiple Airlines
lun. 11/249:53 pmSEA - RAP
1 stop10h 50mMultiple Airlines
Deal found 10/29$245
This Delta deal was found by Cheapflights users on 10/29. 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.
ven. 12/56:05 amRAP - PDX
1 stop7h 49mDelta
sam. 12/612:32 amPDX - RAP
1 stop8h 50mDelta
Deal found 10/29$259
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/113:18 pmRAP - GEG
1 stop6h 27mUnited Airlines
sam. 11/155:10 amGEG - RAP
1 stop6h 30mUnited Airlines
Deal found 10/27$259
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.
jeu. 11/276:05 amRAP - SEA
2 stops13h 34mDelta
jeu. 12/41:47 pmSEA - RAP
1 stop7h 59mDelta
Deal found 10/28$264
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.
jeu. 11/275:15 amRAP - SEA
1 stop6h 20mUnited Airlines
jeu. 12/412:35 pmSEA - RAP
1 stop5h 19mUnited Airlines
Deal found 10/28$278
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.
jeu. 11/1310:22 amRAP - GEG
1 stop5h 59mUnited Airlines
lun. 11/171:47 pmGEG - RAP
1 stop5h 39mUnited Airlines
Deal found 10/28$279
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.
jeu. 11/206:00 pmRAP - SEA
1 stop6h 10mUnited Airlines
mar. 11/259:04 amSEA - RAP
2 stops10h 22mUnited Airlines
Deal found 10/28$283
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.
mar. 11/116:05 amRAP - GEG
1 stop8h 09mDelta
sam. 11/151:15 pmGEG - RAP
2 stops8h 24mDelta
Deal found 10/27$284
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:15 amRAP - PDX
1 stop5h 23mUnited Airlines
sam. 11/154:02 pmPDX - RAP
1 stop4h 56mUnited Airlines
Deal found 10/27$289
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:15 amRAP - SEA
1 stop6h 20mUnited Airlines
sam. 11/1512:00 pmSEA - RAP
1 stop5h 43mUnited Airlines
Deal found 10/27$289

Cheap flight deals from Rapid City to Washington

Keep the following information in mind while searching for Rapid City to Washington flight deals. Data was last updated octobre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$195
(Kiwi.com)

One-way from

$174
(Kiwi.com)

Popular in

April

Cheapest in

October

Average price

$321
Provider with most accurate pricing for Rapid City-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rapid City-Seattle/Tacoma Intl flights.
Search Deals
From Rapid City to Washington
Search Deals
One-way flight from Rapid City to Washington
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 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 Rapid City to Washington 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 octobre 29, 2025.
Use the filters below to find and compare flights from Rapid City to Washington that are best for you.

Fly from

Rapid City

Fly to

Washington

Route

Depart

Return

Price

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

jeu. 11/20

10:10 pm-1:22 pm

1 stop16h 12m

Seattle/Tacoma Intl

lun. 11/24

9:53 pm-9:43 am

1 stop10h 50m

$195

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

dim. 12/21

10:20 pm-10:11 am

1 stop12h 51m

Seattle/Tacoma Intl

lun. 12/22

7:48 pm-8:14 am

1 stop11h 26m

$233

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

ven. 11/21

8:38 pm-4:37 pm

1 stop20h 59m

Seattle/Tacoma Intl

lun. 11/24

9:53 pm-9:43 am

1 stop10h 50m

$245

Rapid CityPasco

RAP - PSC

RAPPSC

Rapid City

sam. 2/14

2:52 pm-8:50 pm

1 stop6h 58m

Pasco Tri Cities

lun. 2/23

5:00 am-1:13 pm

1 stop7h 13m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

sam. 2/28

4:00 pm-11:16 pm

1 stop8h 16m

Spokane

mar. 3/3

6:30 am-3:14 pm

1 stop7h 44m

$249

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

jeu. 1/22

4:40 pm-9:12 pm

1 stop5h 32m

Portland

lun. 1/26

8:30 am-3:22 pm

1 stop5h 52m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

mar. 3/3

10:40 am-4:51 pm

1 stop7h 11m

Portland

ven. 3/6

12:55 am-10:05 am

1 stop8h 10m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

ven. 1/23

5:10 am-9:45 am

1 stop5h 35m

Portland

lun. 1/26

5:00 am-11:25 am

1 stop5h 25m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

ven. 1/23

10:54 am-5:35 pm

1 stop7h 41m

Portland

dim. 1/25

12:40 am-10:13 am

1 stop8h 33m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

jeu. 1/22

10:54 am-5:35 pm

1 stop7h 41m

Portland

dim. 1/25

12:40 am-10:13 am

1 stop8h 33m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Rapid City to Washington

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

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

Currently, October is the cheapest month in which you can book a flight from Rapid City to State of Washington (average of $248). Flying from Rapid City to State of Washington in April is currently the most expensive (average of $418). 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 RAP to WA?

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

It’s typically best to fly out from Rapid City to State of Washington at noon. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated octobre 29, 2025.
See what other customers who have flown with Delta and United Airlines from Rapid City to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,999 reviews
Delta
7.9
Good
7,992 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

    Most people fly from Rapid City (RAP) if they book a flight from Rapid City to Washington. Rapid City is conveniently located just 9.0 mi from Rapid City’s city center.

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

    United Airlines and Delta can get you from Rapid City to State of Washington in just under 6h 58m. Your travel time can differ by up to 1h 18m. The distance from Rapid City to State of Washington is about 795 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Rapid City - Seattle/Tacoma Intl or Rapid City - Spokane, Rapid City - Portland is the most popular route from Rapid City to State of Washington.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Rapid City to State of Washington (average of $248). Flying from Rapid City to State of Washington in April is currently the most expensive (average of $418). 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

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 Rapid City to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Las Vegas flights
Sioux Falls to Denver flights
Sioux Falls to Sky Harbor Intl flights
Sioux Falls to O'Hare Intl flights
Sioux Falls to Orlando flights
Sioux Falls to John F Kennedy Intl flights
Sioux Falls to Dallas/Fort Worth flights
Sioux Falls to Los Angeles flights
Sioux Falls to LaGuardia flights
Sioux Falls to Newark flights
Sioux Falls to Phoenix-Mesa Gateway flights
Rapid City to Las Vegas flights
Sioux Falls to Fort Myers flights
Sioux Falls to Nashville flights
Rapid City to Hobby flights
Sioux Falls to Raleigh flights
Sioux Falls to Miami flights
Rapid City to Orlando flights
Sioux Falls to Seattle flights
Sioux Falls to San Diego flights
Sioux Falls to Hobby flights
Sioux Falls to Portland flights
Sioux Falls to Midway flights
Sioux Falls to Tampa flights
Sioux Falls to Ontario flights
Rapid City to Minneapolis flights
Sioux Falls to Pittsburgh flights
Sioux Falls to Boston flights
Rapid City to Nashville flights
Rapid City to George Bush Intcntl flights
Sioux Falls to Dulles Intl flights
Sioux Falls to George Bush Intcntl flights
Rapid City to Salt Lake City flights
Sioux Falls to Sarasota flights
Sioux Falls to Minneapolis flights
Rapid City to Denver flights
Sioux Falls to Atlanta flights
Sioux Falls to Key West flights
Sioux Falls to Oklahoma City flights
Sioux Falls to Fort Lauderdale flights
Rapid City to Omaha flights
Rapid City to Dallas/Fort Worth flights
Sioux Falls to Albany flights
Sioux Falls to Reagan-National flights
Rapid City to John F Kennedy Intl flights
Rapid City to Los Angeles flights
Rapid City to Fort Lauderdale flights
Sioux Falls to Baltimore flights
Sioux Falls to Jacksonville flights
Rapid City to Atlanta flights

Top 2 airlines flying from Rapid City to Washington

Discover the top 2 airlines that operate flights from Rapid City to Washington. 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 octobre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$480FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$368FlexibilityNo 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.