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Rapid City

$203+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 50 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 July 29, 2025.

Round-trip from

$274
(American Airlines)

One-way from

$203
(Mytrip)

Popular in

October

Cheapest in

January

Average price

$439
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. 19% potential increase in price ($132 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 July 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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1711:42 amSEA - RAP
1 stop9h 08mAmerican Airlines
Mon 10/204:28 pmRAP - SEA
1 stop7h 31mAmerican Airlines
Deal found 7/27$274
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/273:36 pmSEA - RAP
1 stop5h 23mUnited Airlines
Wed 9/34:47 pmRAP - SEA
1 stop7h 12mUnited Airlines
Deal found 7/28$329
This Sun Country Air deal was found by Cheapflights users on 7/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:07 amSEA - RAP
1 stop6h 09mSun Country Air
Fri 8/295:15 pmRAP - SEA
1 stop28h 23mSun Country Air
Deal found 7/27$350
This Delta deal was found by Cheapflights users on 7/27. 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.
Fri 9/126:00 amSEA - RAP
1 stop8h 43mDelta
Tue 9/166:27 amRAP - SEA
1 stop6h 57mDelta
Deal found 7/27$383

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 July 29, 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

Fri 10/17

11:42 am-9:50 pm

1 stop9h 08m

Rapid City

Mon 10/20

4:28 pm-10:59 pm

1 stop7h 31m

$274

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 10/23

11:55 pm-9:53 am

1 stop8h 58m

Rapid City

Sun 10/26

10:33 am-4:54 pm

1 stop7h 21m

$309

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 8/27

3:36 pm-9:59 pm

1 stop5h 23m

Rapid City

Wed 9/3

4:47 pm-10:59 pm

1 stop7h 12m

$329

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 8/22

9:07 am-4:16 pm

1 stop6h 09m

Rapid City

Fri 8/29

5:15 pm-8:38 pm

1 stop28h 23m

$350

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 8/8

9:15 am-4:21 pm

1 stop6h 06m

$203

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 8/8

6:45 am-7:18 pm

2 stops11h 33m

$316

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sun 8/3

5:30 pm-4:27 pm

3 stops21h 57m

$396

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sun 8/3

12:59 am-12:17 pm

1 stop10h 18m

$456

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 8/16

6:10 am-3:43 pm

1 stop8h 33m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 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 50 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 July 29, 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.

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 July 29, 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
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
333 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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.

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

    According to our current data, American Airlines ($274), Delta ($309), and United Airlines ($329) offers the cheapest pricing from Seattle to Rapid City. American Airlines is priced at 48% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Rapid City one-way?

    $203 is the cheapest one-way deal found within the past few days, from Sun Country Air. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $316 and $456, respectively.

  • 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$258Average$400FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$346Average$553FlexibilityNo cancel feeOn-time69%

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