HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$123+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SEA
May 5 — May 121
Mon 5/5
Mon 5/12
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.

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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$123
(Mytrip)

Popular in

June

Cheapest in

March

Average price

$575
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. 16% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 30, 2025.

This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:38 pmRAP - PDX
1 stop7h 05mAmerican Airlines
Tue 9/237:00 amPDX - RAP
1 stop9h 27mAmerican Airlines
Deal found 4/28$259
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:00 amRAP - GEG
1 stop6h 38mUnited Airlines
Sun 5/184:10 pmGEG - RAP
1 stop5h 06mUnited Airlines
Deal found 4/29$259
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 7/35:59 pmRAP - PDX
1 stop5h 17mUnited Airlines
Mon 7/75:00 amPDX - RAP
1 stop6h 46mUnited Airlines
Deal found 4/28$287
This Sun Country Air deal was found by Cheapflights users on 4/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/235:27 pmRAP - SEA
1 stop6h 23mSun Country Air
Thu 6/2611:59 pmSEA - RAP
1 stop15h 22mSun Country Air
Deal found 4/29$290
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/143:31 pmRAP - PDX
1 stop19h 14mMultiple Airlines
Wed 6/186:39 pmPDX - RAP
1 stop25h 33mMultiple Airlines
Deal found 4/28$307
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 6/146:35 amRAP - GEG
1 stop7h 42mDelta
Sat 6/216:50 amGEG - RAP
1 stop8h 02mDelta
Deal found 4/29$324
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/235:27 pmRAP - SEA
2 stops22h 36mMultiple Airlines
Thu 6/2611:59 pmSEA - RAP
1 stop15h 22mMultiple Airlines
Deal found 4/29$341
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 9/264:35 pmRAP - SEA
1 stop7h 59mDelta
Sat 10/412:40 amSEA - RAP
1 stop8h 25mDelta
Deal found 4/29$351
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:47 pmRAP - SEA
1 stop8h 17mAmerican Airlines
Sun 10/56:18 amSEA - RAP
1 stop10h 09mAmerican Airlines
Deal found 4/29$381
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 7/1410:43 amRAP - PDX
2 stops11h 18mDelta
Mon 7/218:02 pmPDX - RAP
2 stops13h 01mDelta
Deal found 4/28$414
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/163:43 pmRAP - SEA
1 stop8h 20mUnited Airlines
Sun 5/185:15 amSEA - RAP
1 stop6h 18mUnited Airlines
Deal found 4/28$424

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 April 30, 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 CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 5/14

7:00 am-12:38 pm

1 stop6h 38m

Spokane

Sun 5/18

4:10 pm-10:16 pm

1 stop5h 06m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 7/3

5:59 pm-10:16 pm

1 stop5h 17m

Portland

Mon 7/7

5:00 am-12:46 pm

1 stop6h 46m

$287

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Mon 6/23

5:27 pm-10:50 pm

1 stop6h 23m

Seattle/Tacoma Intl

Thu 6/26

11:59 pm-4:21 pm

1 stop15h 22m

$290

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 6/14

3:31 pm-9:45 am

1 stop19h 14m

Portland

Wed 6/18

6:39 pm-9:12 pm

1 stop25h 33m

$307

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 6/14

6:35 am-1:17 pm

1 stop7h 42m

Spokane

Sat 6/21

6:50 am-3:52 pm

1 stop8h 02m

$324

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Mon 6/23

5:27 pm-3:03 pm

2 stops22h 36m

Seattle/Tacoma Intl

Thu 6/26

11:59 pm-4:21 pm

1 stop15h 22m

$341

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Mon 7/14

4:38 pm-10:59 pm

1 stop7h 21m

Portland

Sun 7/20

12:59 am-9:55 am

1 stop7h 56m

$350

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Fri 9/26

4:35 pm-11:34 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sat 10/4

12:40 am-10:05 am

1 stop8h 25m

$351

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Fri 9/26

12:47 pm-8:04 pm

1 stop8h 17m

Seattle/Tacoma Intl

Sun 10/5

6:18 am-5:27 pm

1 stop10h 09m

$381

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Mon 7/14

10:43 am-9:01 pm

2 stops11h 18m

Portland

Mon 7/21

8:02 pm-10:03 am

2 stops13h 01m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 19 results
1
2

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, January is the cheapest month in which you can book a flight from Rapid City to State of Washington (average of $238). Flying from Rapid City to State of Washington in July is currently the most expensive (average of $405). 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 April 30, 2025.

When flying from Rapid City to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 30, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and Allegiant Air from Rapid City to Washington to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Sun Country Air
6.9
Okay
346 reviews
Delta
8.0
Very good
7,936 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines to fly from Rapid City to State of Washington one-way?

    One-way options have recently been found by users for as low as $126 on Allegiant Air. Other airlines that offer cheap prices include Sun Country Air from $143 and United Airlines from $181 one-way.

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

    While some choose either Rapid City - Portland or Rapid City - Spokane, Rapid City - Seattle/Tacoma Intl 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, January is the cheapest month in which you can book a flight from Rapid City to State of Washington (average of $238). Flying from Rapid City to State of Washington in July is currently the most expensive (average of $405). 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 Denver flights
Sioux Falls to Seattle flights
Sioux Falls to Orlando flights
Sioux Falls to O'Hare Intl flights
Sioux Falls to Dallas/Fort Worth flights
Sioux Falls to Las Vegas flights
Rapid City to O'Hare Intl flights
Sioux Falls to Sky Harbor Intl flights
Rapid City to Dallas/Fort Worth flights
Sioux Falls to Atlanta flights
Rapid City to Hobby flights
Sioux Falls to Dulles Intl flights
Rapid City to Indianapolis flights
Sioux Falls to Austin flights
Rapid City to John F Kennedy Intl flights
Rapid City to Minneapolis flights
Rapid City to Seattle flights
Rapid City to Reagan-National flights
Sioux Falls to Pensacola flights
Sioux Falls to Sarasota flights
Rapid City to Dulles Intl flights
Sioux Falls to Reagan-National flights
Sioux Falls to Boston flights
Sioux Falls to Fort Myers flights
Sioux Falls to Portland flights
Sioux Falls to Raleigh flights
Rapid City to George Bush Intcntl flights
Sioux Falls to John F Kennedy Intl flights
Rapid City to Boston flights
Rapid City to Baltimore flights
Sioux Falls to Tampa flights
Sioux Falls to Columbus flights
Sioux Falls to Newark flights
Rapid City to Orlando flights
Sioux Falls to Salt Lake City flights
Sioux Falls to Myrtle Beach flights
Sioux Falls to Tucson flights
Sioux Falls to Fort Lauderdale flights
Rapid City to Midway flights
Sioux Falls to Hobby flights
Rapid City to Newark flights
Sioux Falls to Charleston flights
Rapid City to Charlotte flights
Sioux Falls to Midway flights
Rapid City to Detroit flights
Sioux Falls to Savannah flights
Sioux Falls to Sacramento flights
Rapid City to Philadelphia flights
Sioux Falls to Miami flights
Sioux Falls to Philadelphia 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$388FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$267Average$517FlexibilityNo cancel feeOn-time69%

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.