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Cheap flights from Seattle to Rapid City from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Rapid City departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:53 pm - 2:44 pm
SEA
-
RAP
16h 51m
1 stop
Multiple Airlines Logo
12:36 pm - 5:45 pm
RAP
-
SEA
30h 09m
1 stop
$197Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
8:53 pm - 2:44 pm
SEA
-
RAP
16h 51m
1 stop
Multiple Airlines Logo
12:36 pm - 5:45 pm
RAP
-
SEA
30h 09m
1 stop
$204Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
8:53 pm - 11:46 am
SEA
-
RAP
13h 53m
1 stop
Multiple Airlines Logo
3:34 pm - 10:00 am
RAP
-
SEA
19h 26m
1 stop
$208Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
8:53 pm - 11:46 am
SEA
-
RAP
13h 53m
1 stop
Multiple Airlines Logo
12:36 pm - 5:45 pm
RAP
-
SEA
30h 09m
1 stop
$211Multiple Airlines
Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
8:53 pm - 2:44 pm
SEA
-
RAP
16h 51m
1 stop
Multiple Airlines Logo
3:34 pm - 10:00 am
RAP
-
SEA
19h 26m
1 stop
$212Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
8:53 pm - 11:46 am
SEA
-
RAP
13h 53m
1 stop
Multiple Airlines Logo
3:34 pm - 10:00 am
RAP
-
SEA
19h 26m
1 stop
$219Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
8:53 pm - 11:46 am
SEA
-
RAP
13h 53m
1 stop
Multiple Airlines Logo
12:36 pm - 10:00 am
RAP
-
SEA
22h 24m
1 stop
$220Multiple Airlines
Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
8:53 pm - 3:55 pm
SEA
-
RAP
18h 02m
1 stop
Multiple Airlines Logo
3:30 pm - 10:39 am
RAP
-
SEA
20h 09m
1 stop
$222Multiple Airlines
Wed, Aug 19 - Sun, Aug 23
Multiple Airlines Logo
8:53 pm - 2:44 pm
SEA
-
RAP
16h 51m
1 stop
Multiple Airlines Logo
3:34 pm - 10:00 am
RAP
-
SEA
19h 26m
1 stop
$231Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
8:53 pm - 3:55 pm
SEA
-
RAP
18h 02m
1 stop
Multiple Airlines Logo
3:30 pm - 10:39 am
RAP
-
SEA
20h 09m
1 stop
$234Multiple Airlines
Wed, Aug 19 - Sun, Aug 23

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United Airlines flights from Seattle to Rapid City

Our best United Airlines deals on Seattle to Rapid City flight tickets
United Airlines
Aug 12
SEA3:54 pmSeattle/Tacoma Intl
5h 34m
1 stop
RAP10:28 pmRapid City
Aug 19
RAP5:58 pmRapid City
6h 06m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
$319
United Airlines
Aug 11
SEA5:00 amSeattle/Tacoma Intl
6h 24m
1 stop
RAP12:24 pmRapid City
Aug 18
RAP11:22 amRapid City
8h 45m
2 stops
SEA7:07 pmSeattle/Tacoma Intl
$324
United Airlines
Jul 29
SEA2:33 pmSeattle/Tacoma Intl
6h 52m
1 stop
RAP10:25 pmRapid City
Aug 5
RAP5:53 pmRapid City
6h 17m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$344

Delta flights from Seattle to Rapid City

Our best Delta deals on Seattle to Rapid City flight tickets
Delta
Jul 17
SEA2:30 pmSeattle/Tacoma Intl
6h 56m
1 stop
RAP10:26 pmRapid City
Jul 18
RAP11:00 amRapid City
7h 00m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$475
Delta
Jul 17
SEA2:30 pmSeattle/Tacoma Intl
6h 56m
1 stop
RAP10:26 pmRapid City
Jul 19
RAP4:15 pmRapid City
8h 43m
1 stop
SEA11:58 pmSeattle/Tacoma Intl
$489
Delta
Jul 17
SEA2:30 pmSeattle/Tacoma Intl
6h 56m
1 stop
RAP10:26 pmRapid City
Jul 19
RAP4:15 pmRapid City
8h 43m
1 stop
SEA11:58 pmSeattle/Tacoma Intl
$523

momondo 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, momondo users made 832,500 searches. Data last updated July 16, 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 9/5

8:53 pm-2:44 pm

1 stop16h 51m

Rapid City

Thu 9/10

12:36 pm-5:45 pm

1 stop30h 09m

$197

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 9/5

8:53 pm-2:44 pm

1 stop16h 51m

Rapid City

Thu 9/10

12:36 pm-5:45 pm

1 stop30h 09m

$204
Quickest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/2

8:53 pm-11:46 am

1 stop13h 53m

Rapid City

Sun 9/13

3:34 pm-10:00 am

1 stop19h 26m

$208

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/2

8:53 pm-11:46 am

1 stop13h 53m

Rapid City

Thu 9/10

12:36 pm-5:45 pm

1 stop30h 09m

$211

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 9/5

8:53 pm-2:44 pm

1 stop16h 51m

Rapid City

Sun 9/13

3:34 pm-10:00 am

1 stop19h 26m

$212

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/2

8:53 pm-11:46 am

1 stop13h 53m

Rapid City

Sun 9/13

3:34 pm-10:00 am

1 stop19h 26m

$219

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/2

8:53 pm-11:46 am

1 stop13h 53m

Rapid City

Thu 9/10

12:36 pm-10:00 am

1 stop22h 24m

$220

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 8/19

8:53 pm-3:55 pm

1 stop18h 02m

Rapid City

Sun 8/23

3:30 pm-10:39 am

1 stop20h 09m

$222

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 9/5

8:53 pm-2:44 pm

1 stop16h 51m

Rapid City

Sun 9/13

3:34 pm-10:00 am

1 stop19h 26m

$231

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 8/19

8:53 pm-3:55 pm

1 stop18h 02m

Rapid City

Sun 8/23

3:30 pm-10:39 am

1 stop20h 09m

$234

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Seattle to Rapid City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Rapid City?

What is the cheapest month to fly to Rapid City?

The month of January is, on average, the cheapest month to fly to Rapid City from Seattle, with most prices found around $349. If you aren’t able to travel to Rapid City during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $353.

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

You are more likely to see cheaper flights to Rapid City from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $522 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from Seattle for as low as $270 on momondo.

How have Seattle to Rapid City flight prices changed over time?

When to book flights from Seattle to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Rapid City (SEA to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Rapid City

Fastest flight time

5h 25m

Direct flights

None
The fastest flight from Seattle to Rapid City takes 5h 25m
There are no direct flights from Seattle to Rapid City. There are no popular flight routes from Seattle to Rapid City.
Search flight deals

Frequently asked questions about flying from Seattle to Rapid City

  • How far is Seattle/Tacoma Intl to Rapid City by plane?

    The distance between Seattle/Tacoma Intl and Rapid City is about 948.2 mi. Typically, this will take 5h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Rapid City Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Rapid City Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Rapid City Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Rapid City Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Rapid City Airport.

  • What documentation or ID do you need to fly to Rapid City Airport?

    The required travel and health documents for your Rapid City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rapid City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seattle to Rapid City?

Best airlines flying from Seattle to Rapid City

Compare and see reviews for airlines that fly from Seattle to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $190Free CancellationRating
7.8
8,479 reviews
Search Delta flights
United AirlinesPriceFrom $312Free CancellationRating
7.4
9,993 reviews
Search United Airlines flights

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Deadwood
Sturgis
Keystone
Custer
Wall
Hot Springs
Hill City
Spearfish

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Rapid City?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Rapid City. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Rapid City with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Rapid City flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Rapid City?

Once all potential Seattle to Rapid City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Rapid City right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Rapid City flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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