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Rapid City

$160+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
May 2 — May 91
Sat 5/2
Sat 5/9
1 adult, Economy
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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 April 2, 2026.

This American Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 4/256:00 am
SEA
-
RAP
1 stop9h 27m
American Airlines
Fri 5/14:57 pm
RAP
-
SEA
1 stop8h 47m
American Airlines
Deal found 3/31$319
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/295:00 am
SEA
-
RAP
1 stop7h 08m
United Airlines
Wed 5/65:35 pm
RAP
-
SEA
1 stop6h 24m
United Airlines
Deal found 3/30$339
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/228:45 am
SEA
-
RAP
2 stops9h 17m
United Airlines
Sat 4/255:20 am
RAP
-
SEA
1 stop5h 26m
United Airlines
Deal found 3/30$344
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/293:48 pm
SEA
-
RAP
1 stop5h 32m
United Airlines
Sat 5/25:20 am
RAP
-
SEA
2 stops10h 16m
United Airlines
Deal found 3/30$349
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Thu 4/3011:41 am
SEA
-
RAP
1 stop9h 17m
American Airlines
Thu 5/74:57 pm
RAP
-
SEA
1 stop8h 47m
American Airlines
Deal found 4/2$379
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 5/26:00 am
SEA
-
RAP
1 stop9h 27m
American Airlines
Sat 5/94:57 pm
RAP
-
SEA
1 stop8h 47m
American Airlines
Deal found 4/1$381
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/158:07 pm
SEA
-
RAP
2 stops20h 00m
Multiple Airlines
Sun 4/195:57 pm
RAP
-
SEA
1 stop26h 43m
Multiple Airlines
Deal found 3/30$382
This American Airlines deal was found by Cheapflights users on 3/30. 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 9/912:00 pm
SEA
-
RAP
1 stop8h 58m
American Airlines
Wed 9/1612:48 pm
RAP
-
SEA
1 stop7h 36m
American Airlines
Deal found 3/30$390
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Thu 4/166:00 am
SEA
-
RAP
1 stop9h 27m
American Airlines
Mon 4/204:57 pm
RAP
-
SEA
1 stop8h 47m
American Airlines
Deal found 4/1$394
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Wed 5/277:50 pm
SEA
-
RAP
2 stops16h 54m
Multiple Airlines
Sun 5/312:34 pm
RAP
-
SEA
1 stop21h 02m
Multiple Airlines
Deal found 3/31$408
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/63:48 pm
SEA
-
RAP
1 stop5h 40m
United Airlines
Mon 6/15:53 pm
RAP
-
SEA
1 stop6h 17m
United Airlines
Deal found 4/1$409
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Mon 5/1110:25 am
SEA
-
RAP
1 stop10h 33m
American Airlines
Sat 5/164:57 pm
RAP
-
SEA
1 stop8h 47m
American Airlines
Deal found 4/1$410

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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$160
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$495
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. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 2, 2026.
Use the filters below to find and compare flights from Seattle to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 4/25

3:48 pm-10:28 pm

1 stop5h 40m

Rapid City

Tue 4/28

7:00 am-1:16 pm

1 stop7h 16m

$419
Quickest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 5/27

12:50 pm-8:33 pm

1 stop6h 43m

Rapid City

Sun 5/31

5:00 am-10:00 am

1 stop6h 00m

$427

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 4/25

11:35 am-9:04 pm

2 stops8h 29m

Rapid City

Wed 4/29

8:30 am-7:45 pm

2 stops12h 15m

$429

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sun 4/12

8:55 am-6:00 pm

1 stop8h 05m

Rapid City

Thu 4/16

2:47 pm-9:06 pm

1 stop7h 19m

$441

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 7/9

2:33 pm-8:33 pm

1 stop5h 00m

Rapid City

Mon 7/13

5:00 am-2:36 pm

2 stops10h 36m

$474

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 5/14

6:00 am-3:48 pm

1 stop8h 48m

Rapid City

Wed 5/20

4:33 pm-12:12 am

2 stops8h 39m

$520

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 4/24

6:00 am-8:44 pm

2 stops13h 44m

Rapid City

Mon 4/27

10:00 am-7:45 pm

2 stops10h 45m

$543

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/9

6:29 am-5:08 pm

2 stops9h 39m

Rapid City

Sun 9/13

5:00 am-3:48 pm

2 stops11h 48m

$576
Cheapest one-way

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 6/3

11:21 am-9:04 pm

2 stops32h 43m

$172

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/15

10:57 am-5:07 pm

2 stops29h 10m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 19 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Rapid City flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 April 2, 2026.

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, May is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $199). Flying from Seattle to Rapid City in April is currently the most expensive (average of $356). 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.

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 April 2, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andSun Country Air 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
8,372 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

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
8,372 reviews
Delta
7.9
Good
8,372 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

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
9,535 reviews
Delta
7.9
Good
8,372 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

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
6.8
Okay
338 reviews
Delta
7.9
Good
8,372 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

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 5h 40m. 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 ($190), and United Airlines ($312) 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.

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

    $180 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $205 and $205, 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, May is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $199). Flying from Seattle to Rapid City in April is currently the most expensive (average of $356). 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

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Top 3 airlines flying from Seattle to Rapid City

Discover the top 3 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 April 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$385FlexibilityNo cancel feeOn-time83%
DeltaCheapest$190Average$350FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$312Average$483FlexibilityNo cancel feeOn-time69%

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