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Cheap flights from Seattle to Rapid City from $216

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 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
United Airlines Logo
5:40 pm - 10:59 pm
RAP
-
SEA
6h 19m
1 stop
$279United Airlines
Thu, Feb 12 - Thu, Feb 19
United Airlines Logo
12:15 pm - 10:16 pm
SEA
-
RAP
9h 01m
2 stops
United Airlines Logo
5:20 am - 9:49 am
RAP
-
SEA
5h 29m
1 stop
$284United Airlines
Tue, Feb 24 - Sun, Mar 1
United Airlines Logo
5:00 am - 11:25 am
SEA
-
RAP
5h 25m
1 stop
United Airlines Logo
2:40 pm - 9:15 pm
RAP
-
SEA
7h 35m
1 stop
$309United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
9:00 am - 8:32 pm
SEA
-
RAP
10h 32m
2 stops
United Airlines Logo
4:40 pm - 9:15 pm
RAP
-
SEA
5h 35m
1 stop
$314United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
3:25 pm - 10:16 pm
SEA
-
RAP
5h 51m
1 stop
United Airlines Logo
5:20 am - 9:49 am
RAP
-
SEA
5h 29m
1 stop
$349United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
12:32 pm - 10:16 pm
SEA
-
RAP
8h 44m
2 stops
United Airlines Logo
2:52 pm - 9:12 pm
RAP
-
SEA
7h 20m
1 stop
$354United Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:00 am - 3:18 pm
SEA
-
RAP
8h 18m
1 stop
Delta Logo
6:00 am - 2:54 pm
RAP
-
SEA
9h 54m
2 stops
$358Delta
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
12:32 pm - 10:16 pm
SEA
-
RAP
8h 44m
2 stops
United Airlines Logo
5:20 am - 4:21 pm
RAP
-
SEA
12h 01m
2 stops
$360United Airlines
Sat, Feb 28 - Tue, Mar 3
American Airlines Logo
5:30 am - 1:51 pm
SEA
-
RAP
7h 21m
1 stop
American Airlines Logo
4:54 pm - 12:44 am
RAP
-
SEA
8h 50m
1 stop
$363American Airlines
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
5:00 am - 1:08 pm
SEA
-
RAP
7h 08m
1 stop
United Airlines Logo
10:55 am - 7:45 pm
RAP
-
SEA
9h 50m
2 stops
$364United Airlines
Sat, Apr 11 - Mon, Apr 13

United Airlines flights from Seattle to Rapid City

Our best United Airlines deals on Seattle to Rapid City flight tickets
United Airlines
Feb 12
SEA5:00 amSeattle/Tacoma Intl
7h 13m
1 stop
RAP1:13 pmRapid City
Feb 19
RAP5:40 pmRapid City
6h 19m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$279
United Airlines
Feb 24
SEA12:15 pmSeattle/Tacoma Intl
9h 01m
2 stops
RAP10:16 pmRapid City
Mar 1
RAP5:20 amRapid City
5h 29m
1 stop
SEA9:49 amSeattle/Tacoma Intl
$284
United Airlines
Jan 31
SEA5:00 amSeattle/Tacoma Intl
7h 12m
1 stop
RAP1:12 pmRapid City
Feb 7
RAP2:40 pmRapid City
7h 45m
1 stop
SEA9:25 pmSeattle/Tacoma Intl
$294

Delta flights from Seattle to Rapid City

Our best Delta deals on Seattle to Rapid City flight tickets
Delta
Jan 31
SEA6:05 amSeattle/Tacoma Intl
8h 20m
1 stop
RAP3:25 pmRapid City
Feb 7
RAP10:54 amRapid City
8h 35m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
$299
Delta
Jan 31
SEA9:25 amSeattle/Tacoma Intl
12h 03m
2 stops
RAP10:28 pmRapid City
Feb 7
RAP10:54 amRapid City
8h 35m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
$305
Delta
Apr 1
SEA6:00 amSeattle/Tacoma Intl
8h 18m
1 stop
RAP3:18 pmRapid City
Apr 8
RAP6:00 amRapid City
9h 54m
2 stops
SEA2:54 pmSeattle/Tacoma Intl
$358

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 January 15, 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

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 2/12

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Thu 2/19

5:40 pm-10:59 pm

1 stop6h 19m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 2/24

12:15 pm-10:16 pm

2 stops9h 01m

Rapid City

Sun 3/1

5:20 am-9:49 am

1 stop5h 29m

$284

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 1/29

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Mon 2/2

2:40 pm-9:15 pm

1 stop7h 35m

$309

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 1/29

9:00 am-8:32 pm

2 stops10h 32m

Rapid City

Mon 2/2

4:40 pm-9:15 pm

1 stop5h 35m

$314

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 2/28

3:25 pm-10:16 pm

1 stop5h 51m

Rapid City

Tue 3/3

5:20 am-9:49 am

1 stop5h 29m

$349

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 2/28

12:32 pm-10:16 pm

2 stops8h 44m

Rapid City

Tue 3/3

2:52 pm-9:12 pm

1 stop7h 20m

$354

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/1

6:00 am-3:18 pm

1 stop8h 18m

Rapid City

Wed 4/8

6:00 am-2:54 pm

2 stops9h 54m

$358

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 2/28

12:32 pm-10:16 pm

2 stops8h 44m

Rapid City

Tue 3/3

5:20 am-4:21 pm

2 stops12h 01m

$360

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/1

5:30 am-1:51 pm

1 stop7h 21m

Rapid City

Wed 4/8

4:54 pm-12:44 am

1 stop8h 50m

$363

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 4/11

5:00 am-1:08 pm

1 stop7h 08m

Rapid City

Mon 4/13

10:55 am-7:45 pm

2 stops9h 50m

$364

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 cheapest month to fly to Rapid City?

The month of October is, on average, the cheapest month to fly to Rapid City from Seattle, with most prices found around $354. If you aren’t able to travel to Rapid City during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $358.

How far in advance should I book a flight 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 $474 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 $364 on momondo.

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

As of January 2026, prices for Seattle to Rapid City flights are approximately 42% cheaper when compared to flights at the same time last year.

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

  • 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
Sun Country AirPriceFrom $137Free CancellationRating
6.9
342 reviews
Search Sun Country Air flights
DeltaPriceFrom $209Free CancellationRating
7.9
8,048 reviews
Search Delta flights
United AirlinesPriceFrom $317Free CancellationRating
7.4
9,163 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
Keystone
Sturgis
Custer
Spearfish
Hill City
Wall
Hot Springs

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.

An easier way to manage your Rapid City trip

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