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Rapid City

$125+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Rapid City are usually found in January or February, booked 66 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap 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 September 11, 2025.

Round-trip from

$259
(United Airlines)

One-way from

$125
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$623
From Seattle/Tacoma Intl to Rapid City
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One-way flight from Seattle/Tacoma Intl to Rapid City
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Highest demand for flights based on searches. 20% potential increase in price ($133 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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 10/113:35 pmSEA - RAP
1 stop5h 37mUnited Airlines
Sat 10/187:00 amRAP - SEA
1 stop7h 43mUnited Airlines
Deal found 9/11$259
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/95:00 amSEA - RAP
1 stop4h 57mUnited Airlines
Thu 10/168:30 amRAP - SEA
1 stop8h 02mUnited Airlines
Deal found 9/11$286
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/265:00 amSEA - RAP
1 stop6h 37mUnited Airlines
Tue 9/304:35 pmRAP - SEA
1 stop5h 59mUnited Airlines
Deal found 9/11$289
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amSEA - RAP
1 stop6h 45mDelta
Tue 10/214:34 pmRAP - SEA
1 stop8h 23mDelta
Deal found 9/11$309
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/65:00 amSEA - RAP
1 stop4h 57mUnited Airlines
Thu 10/911:15 amRAP - SEA
1 stop7h 38mUnited Airlines
Deal found 9/10$321
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/86:35 amSEA - RAP
2 stops11h 05mUnited Airlines
Wed 10/155:50 pmRAP - SEA
1 stop6h 39mUnited Airlines
Deal found 9/10$327
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/256:35 amSEA - RAP
2 stops9h 25mUnited Airlines
Wed 10/297:10 amRAP - SEA
2 stops10h 05mUnited Airlines
Deal found 9/11$358

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 September 11, 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

Sat 10/25

6:00 am-1:45 pm

1 stop6h 45m

Rapid City

Wed 10/29

10:33 am-4:54 pm

1 stop7h 21m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 9/26

6:35 am-6:40 pm

2 stops11h 05m

Rapid City

Tue 9/30

4:35 pm-9:34 pm

1 stop5h 59m

$294

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/15

6:00 am-1:45 pm

1 stop6h 45m

Rapid City

Tue 10/21

6:05 am-4:32 pm

2 stops11h 27m

$314

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 10/6

5:00 am-10:57 am

1 stop4h 57m

Rapid City

Thu 10/9

11:15 am-5:53 pm

1 stop7h 38m

$321

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/8

6:35 am-6:40 pm

2 stops11h 05m

Rapid City

Wed 10/15

5:50 pm-11:29 pm

1 stop6h 39m

$327

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/15

11:10 am-6:40 pm

1 stop6h 30m

Rapid City

Tue 10/21

9:56 am-9:15 pm

3 stops12h 19m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 10/25

6:35 am-5:00 pm

2 stops9h 25m

Rapid City

Wed 10/29

7:10 am-4:15 pm

2 stops10h 05m

$358

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 3/9

12:40 am-10:05 am

1 stop8h 25m

Rapid City

Wed 3/11

6:20 am-1:00 pm

1 stop7h 40m

$371

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 10/9

6:35 am-5:00 pm

2 stops9h 25m

Rapid City

Thu 10/16

11:15 am-3:32 pm

1 stop5h 17m

$390

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 3/10

9:25 am-8:33 pm

2 stops10h 08m

Rapid City

Wed 3/11

5:30 am-9:59 am

1 stop5h 29m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results
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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 August 29, 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 66 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, January is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $348). Flying from Seattle to Rapid City in June is currently the most expensive (average of $502). 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 September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 22% on flights from Seattle to Rapid City by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Seattle to Rapid City?

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 September 11, 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
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Sun Country Air
6.9
Okay
330 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 6h 45m. Fly via Delta or United Airlines to get the fastest option. The distance between Seattle and Rapid City is about 954 mi. This flight may include one or multiple stops.

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

    According to our current data, Sun Country Air ($137), American Airlines ($258), and Delta ($258) offers the cheapest pricing from Seattle to Rapid City. Sun Country Air is priced at 74% 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, January is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $348). Flying from Seattle to Rapid City in June is currently the most expensive (average of $502). 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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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$258Average$396FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$344Average$529FlexibilityNo cancel feeOn-time69%

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