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Cheap flights from Seattle to Rapid City from $221

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 5/4. 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.
American Airlines Logo
10:25 am - 9:58 pm
SEA
-
RAP
10h 33m
1 stop
American Airlines Logo
4:57 pm - 12:44 am
RAP
-
SEA
8h 47m
1 stop
$319American Airlines
Wed, May 6 - Wed, May 13
United Airlines Logo
5:00 am - 12:29 pm
SEA
-
RAP
6h 29m
1 stop
United Airlines Logo
5:53 pm - 11:10 pm
RAP
-
SEA
6h 17m
1 stop
$339United Airlines
Thu, Jun 4 - Mon, Jun 8
Delta Logo
6:00 am - 3:15 pm
SEA
-
RAP
8h 15m
1 stop
Delta Logo
3:55 pm - 11:54 pm
RAP
-
SEA
8h 59m
1 stop
$349Delta
Thu, Apr 23 - Mon, Apr 27
United Airlines Logo
3:40 pm - 9:55 pm
SEA
-
RAP
5h 15m
1 stop
United Airlines Logo
1:00 pm - 9:58 pm
RAP
-
SEA
9h 58m
2 stops
$364United Airlines
Wed, May 6 - Wed, May 13
American Airlines Logo
11:30 pm - 9:49 am
SEA
-
RAP
9h 19m
1 stop
American Airlines Logo
4:58 pm - 12:15 am
RAP
-
SEA
8h 17m
1 stop
$381American Airlines
Thu, Sep 17 - Tue, Sep 22
American Airlines Logo
10:17 am - 9:58 pm
SEA
-
RAP
10h 41m
1 stop
American Airlines Logo
4:58 pm - 12:15 am
RAP
-
SEA
8h 17m
1 stop
$391American Airlines
Thu, Sep 10 - Tue, Sep 15
American Airlines Logo
10:23 am - 9:33 pm
SEA
-
RAP
10h 10m
1 stop
American Airlines Logo
11:44 am - 5:38 pm
RAP
-
SEA
6h 54m
1 stop
$400American Airlines
Tue, Jun 2 - Sat, Jun 6
Multiple Airlines Logo
7:41 pm - 9:08 pm
SEA
-
RAP
24h 27m
2 stops
Multiple Airlines Logo
9:50 pm - 10:35 am
RAP
-
SEA
13h 45m
1 stop
$413Multiple Airlines
Thu, Jul 9 - Sun, Jul 12
United Airlines Logo
5:05 am - 1:09 pm
SEA
-
RAP
7h 04m
1 stop
United Airlines Logo
4:13 pm - 10:59 pm
RAP
-
SEA
7h 46m
1 stop
$419United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
5:00 am - 11:30 am
SEA
-
RAP
5h 30m
1 stop
United Airlines Logo
5:53 pm - 11:10 pm
RAP
-
SEA
6h 17m
1 stop
$422United Airlines
Thu, Jun 4 - Thu, Jun 4

United Airlines flights from Seattle to Rapid City

Our best United Airlines deals on Seattle to Rapid City flight tickets
United Airlines
Jun 4
SEA5:00 amSeattle/Tacoma Intl
6h 29m
1 stop
RAP12:29 pmRapid City
Jun 8
RAP5:53 pmRapid City
6h 17m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$339
United Airlines
May 6
SEA3:40 pmSeattle/Tacoma Intl
5h 15m
1 stop
RAP9:55 pmRapid City
May 13
RAP1:00 pmRapid City
9h 58m
2 stops
SEA9:58 pmSeattle/Tacoma Intl
$364
United Airlines
May 2
SEA5:05 amSeattle/Tacoma Intl
7h 04m
1 stop
RAP1:09 pmRapid City
May 6
RAP4:13 pmRapid City
7h 46m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$419

American Airlines flights from Seattle to Rapid City

Our best American Airlines deals on Seattle to Rapid City flight tickets
American Airlines
May 6
SEA10:25 amSeattle/Tacoma Intl
10h 33m
1 stop
RAP9:58 pmRapid City
May 13
RAP4:57 pmRapid City
8h 47m
1 stop
SEA12:44 amSeattle/Tacoma Intl
$319
American Airlines
Sep 17
SEA11:30 pmSeattle/Tacoma Intl
9h 19m
1 stop
RAP9:49 amRapid City
Sep 22
RAP4:58 pmRapid City
8h 17m
1 stop
SEA12:15 amSeattle/Tacoma Intl
$381
American Airlines
Sep 10
SEA10:17 amSeattle/Tacoma Intl
10h 41m
1 stop
RAP9:58 pmRapid City
Sep 15
RAP4:58 pmRapid City
8h 17m
1 stop
SEA12:15 amSeattle/Tacoma Intl
$391

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 April 13, 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

Wed 5/6

10:25 am-9:58 pm

1 stop10h 33m

Rapid City

Wed 5/13

4:57 pm-12:44 am

1 stop8h 47m

$319

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 6/4

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Mon 6/8

5:53 pm-11:10 pm

1 stop6h 17m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 4/23

6:00 am-3:15 pm

1 stop8h 15m

Rapid City

Mon 4/27

3:55 pm-11:54 pm

1 stop8h 59m

$349

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 5/6

3:40 pm-9:55 pm

1 stop5h 15m

Rapid City

Wed 5/13

1:00 pm-9:58 pm

2 stops9h 58m

$364

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 9/17

11:30 pm-9:49 am

1 stop9h 19m

Rapid City

Tue 9/22

4:58 pm-12:15 am

1 stop8h 17m

$381

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 9/10

10:17 am-9:58 pm

1 stop10h 41m

Rapid City

Tue 9/15

4:58 pm-12:15 am

1 stop8h 17m

$391

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 6/2

10:23 am-9:33 pm

1 stop10h 10m

Rapid City

Sat 6/6

11:44 am-5:38 pm

1 stop6h 54m

$400

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 7/9

7:41 pm-9:08 pm

2 stops24h 27m

Rapid City

Sun 7/12

9:50 pm-10:35 am

1 stop13h 45m

$413

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 5/2

5:05 am-1:09 pm

1 stop7h 04m

Rapid City

Wed 5/6

4:13 pm-10:59 pm

1 stop7h 46m

$419
Quickest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 6/4

5:00 am-11:30 am

1 stop5h 30m

Rapid City

Thu 6/4

5:53 pm-11:10 pm

1 stop6h 17m

$422

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 $351.

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 $472 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 06m

Direct flights

None
The fastest flight from Seattle to Rapid City takes 5h 06m
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 06m 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
6.8
336 reviews
Search Sun Country Air flights
DeltaPriceFrom $190Free CancellationRating
7.9
8,407 reviews
Search Delta flights
United AirlinesPriceFrom $307Free CancellationRating
7.4
9,579 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
Hot Springs
Wall

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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