HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$191+ Cheap flights from Seattle to Rapid City (SEA - 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle 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.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Rapid City are usually found in January or October, booked 67 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Rapid City

Cheapest flights from Seattle to Rapid City
Explore the most affordable flight options available from Seattle to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/215:53 pmSEA - RAP
2 stops24h 19mUnited Airlines
Mon 1/56:05 pmRAP - SEA
1 stop6h 07mUnited Airlines
Deal found 12/10$597
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/195:02 amSEA - RAP
1 stop5h 30mUnited Airlines
Wed 12/2411:11 amRAP - SEA
1 stop7h 55mUnited Airlines
Deal found 12/11$722
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 12/205:02 amSEA - RAP
1 stop10h 58mUnited Airlines
Wed 12/2411:11 amRAP - SEA
1 stop7h 55mUnited Airlines
Deal found 12/11$804
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/195:02 amSEA - RAP
1 stop5h 30mUnited Airlines
Mon 12/226:05 pmRAP - SEA
1 stop6h 07mUnited Airlines
Deal found 12/11$820
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Tue 12/236:00 amSEA - RAP
2 stops25h 17mMultiple Airlines
Sun 12/289:15 pmRAP - SEA
1 stop22h 38mMultiple Airlines
Deal found 12/9$901
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/243:50 pmSEA - RAP
1 stop26h 22mUnited Airlines
Sun 12/288:45 amRAP - SEA
1 stop26h 11mUnited Airlines
Deal found 12/9$965
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:44 pmSEA - RAP
1 stop5h 28mUnited Airlines
Wed 12/318:45 amRAP - SEA
1 stop6h 13mUnited Airlines
Deal found 12/10$992

Find flight deals from Seattle to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(United Airlines)

One-way from

$191
(Delta)

Popular in

December

Cheapest in

January

Average price

$704
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 Seattle/Tacoma Intl to Rapid City
Search Deals
One-way flight from Seattle/Tacoma Intl to Rapid City
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 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 Seattle 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 12, 2025.
Use the filters below to find and compare flights from Seattle to Rapid City that are best for you.

Fly from

Seattle

Fly to

Rapid City

Route

Depart

Return

Price

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 1/14

8:40 am-5:12 pm

1 stop7h 32m

Rapid City

Sat 1/24

10:45 am-6:26 pm

1 stop8h 41m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 1/12

3:30 pm-10:29 pm

1 stop5h 59m

Rapid City

Mon 1/19

5:10 am-9:55 am

1 stop5h 45m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 3/2

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/31

10:00 am-6:33 pm

2 stops9h 33m

$284

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 1/21

12:25 pm-8:32 pm

1 stop7h 07m

Rapid City

Sat 1/24

12:35 pm-11:47 pm

2 stops12h 12m

$334

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 3/2

3:30 pm-10:27 pm

1 stop5h 57m

$191

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 12/30

3:50 pm-9:59 pm

1 stop5h 09m

$237

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 12/26

5:02 am-11:32 am

1 stop5h 30m

$256

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 3/2

7:29 pm-3:17 pm

2 stops18h 48m

$335

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 12/26

1:25 pm-8:27 am

2 stops18h 02m

$338

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 12/30

2:54 pm-8:16 pm

3 stops52h 22m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 results
1
2

Compare providers for flights from Seattle to Rapid City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Rapid City in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Rapid City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Rapid City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Rapid City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Rapid City

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

How far ahead should I book a flight from Seattle to Rapid City?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Rapid City. Price data was last updated on December 5, 2025.

The price you pay for your flight from Seattle to Rapid City may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Rapid City?

Currently, June is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $240). Flying from Seattle to Rapid City in May is currently the most expensive (average of $398). 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 SEA to RAP?

Find hourly flight availability from Seattle 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 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 21% on flights from Seattle to Rapid City by exploring options for tickets in the evening.

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Seattle to Rapid City by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Sun Country Air
6.9
Okay
333 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Rapid City?

    There are many flights that can get you from Seattle to Rapid City in 7h 32m. Fly via United Airlines to get the fastest option. The distance between Seattle and Rapid City is about 954 mi.

  • What are the cheapest airlines flying from Seattle to Rapid City round-trip?

    According to our current data, Sun Country Air ($137), Delta ($209), and American Airlines ($258) offers the cheapest pricing from Seattle to Rapid City. Sun Country Air is priced at 71% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Rapid City?

    Currently, June is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $240). Flying from Seattle to Rapid City in May is currently the most expensive (average of $398). 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.

Top 4 airlines flying from Seattle to Rapid City

Discover the top 4 airlines that operate flights from Seattle 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$258Average$367FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$350FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$328Average$488FlexibilityNo 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.