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Cheap flights from Seattle to Rapid City from $213

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 9/24. 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 (SEA-RAP)

Cheap round-trip flights

American Airlines Logo
11:42 am - 9:19 pmSEA-RAP
8h 37m1 stop
American Airlines Logo
2:20 pm - 9:18 pmRAP-SEA
7h 58m1 stop
$259American Airlines
Find Deal
mar., oct. 28 - mié., nov. 12
United Airlines Logo
5:02 am - 11:32 amSEA-RAP
5h 30m1 stop
United Airlines Logo
5:59 pm - 10:59 pmRAP-SEA
6h 00m1 stop
$289United Airlines
Find Deal
sáb., sep. 6 - dom., sep. 7
United Airlines Logo
6:25 am - 6:50 pmSEA-RAP
11h 25m2 stops
United Airlines Logo
5:59 pm - 10:59 pmRAP-SEA
6h 00m1 stop
$294United Airlines
Find Deal
vie., sep. 5 - dom., sep. 7
Logo
8:35 pm - 12:12 pmSEA-RAP
14h 37m1 stop
Logo
8:58 pm - 9:20 amRAP-SEA
13h 22m1 stop
$301
Find Deal
dom., sep. 28 - sáb., oct. 4
Logo
8:31 pm - 9:13 amSEA-RAP
11h 42m1 stop
Logo
8:58 pm - 9:20 amRAP-SEA
13h 22m1 stop
$302
Find Deal
jue., oct. 2 - sáb., oct. 4
United Airlines Logo
5:02 am - 11:32 amSEA-RAP
5h 30m1 stop
United Airlines Logo
5:59 pm - 10:59 pmRAP-SEA
6h 00m1 stop
$304United Airlines
Find Deal
vie., sep. 12 - lun., sep. 15
Logo
7:00 am - 11:22 amSEA-RAP
27h 22m2 stops
Logo
8:58 pm - 9:20 amRAP-SEA
13h 22m1 stop
$307
Find Deal
mar., sep. 23 - sáb., oct. 4
Delta Logo
11:55 pm - 9:53 amSEA-RAP
8h 58m1 stop
Delta Logo
6:20 am - 4:58 pmRAP-SEA
11h 38m2 stops
$314Delta
Find Deal
mar., oct. 28 - mié., nov. 12
Delta Logo
6:00 am - 3:43 pmSEA-RAP
8h 43m1 stop
Delta Logo
4:24 pm - 11:43 pmRAP-SEA
8h 19m1 stop
$330Delta
Find Deal
mar., sep. 30 - vie., oct. 3
American Airlines Logo
5:26 am - 4:04 pmSEA-RAP
9h 38m1 stop
American Airlines Logo
4:38 pm - 10:59 pmRAP-SEA
7h 21m1 stop
$371American Airlines
Find Deal
lun., sep. 29 - jue., oct. 2

Delta flights from Seattle to Rapid City

Our best Delta deals on Seattle to Rapid City flight tickets
Delta
Oct 28
SEA11:55 pmSeattle/Tacoma Intl
8h 58m
1 stop
RAP9:53 amRapid City
Nov 12
RAP6:20 amRapid City
11h 38m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
$314
Find similar
Delta
Sep 30
SEA6:00 amSeattle/Tacoma Intl
8h 43m
1 stop
RAP3:43 pmRapid City
Oct 3
RAP4:24 pmRapid City
8h 19m
1 stop
SEA11:43 pmSeattle/Tacoma Intl
$330
Find similar
Delta
Sep 27
SEA6:00 amSeattle/Tacoma Intl
8h 44m
1 stop
RAP3:44 pmRapid City
Oct 1
RAP4:24 pmRapid City
8h 19m
1 stop
SEA11:43 pmSeattle/Tacoma Intl
$333
Find similar

American Airlines flights from Seattle to Rapid City

Our best American Airlines deals on Seattle to Rapid City flight tickets
American Airlines
Oct 28
SEA11:42 amSeattle/Tacoma Intl
8h 37m
1 stop
RAP9:19 pmRapid City
Nov 12
RAP2:20 pmRapid City
7h 58m
1 stop
SEA9:18 pmSeattle/Tacoma Intl
$259
Find similar
American Airlines
Sep 29
SEA5:26 amSeattle/Tacoma Intl
9h 38m
1 stop
RAP4:04 pmRapid City
Oct 2
RAP4:38 pmRapid City
7h 21m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$371
Find similar
American Airlines
Oct 1
SEA7:48 amSeattle/Tacoma Intl
7h 16m
1 stop
RAP4:04 pmRapid City
Oct 6
RAP4:28 pmRapid City
7h 31m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$390
Find similar

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 agosto 20, 2025.
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

mar. 10/28

11:42 am-9:19 pm

1 stop8h 37m

Rapid City

mié. 11/12

2:20 pm-9:18 pm

1 stop7h 58m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

sáb. 9/6

5:02 am-11:32 am

1 stop5h 30m

Rapid City

dom. 9/7

5:59 pm-10:59 pm

1 stop6h 00m

$289

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

vie. 9/5

6:25 am-6:50 pm

2 stops11h 25m

Rapid City

dom. 9/7

5:59 pm-10:59 pm

1 stop6h 00m

$294

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

dom. 9/28

8:35 pm-12:12 pm

1 stop14h 37m

Rapid City

sáb. 10/4

8:58 pm-9:20 am

1 stop13h 22m

$301

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

jue. 10/2

8:31 pm-9:13 am

1 stop11h 42m

Rapid City

sáb. 10/4

8:58 pm-9:20 am

1 stop13h 22m

$302

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

vie. 9/12

5:02 am-11:32 am

1 stop5h 30m

Rapid City

lun. 9/15

5:59 pm-10:59 pm

1 stop6h 00m

$304

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

mar. 9/23

7:00 am-11:22 am

2 stops27h 22m

Rapid City

sáb. 10/4

8:58 pm-9:20 am

1 stop13h 22m

$307

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

mar. 10/28

11:55 pm-9:53 am

1 stop8h 58m

Rapid City

mié. 11/12

6:20 am-4:58 pm

2 stops11h 38m

$314

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

mar. 9/30

6:00 am-3:43 pm

1 stop8h 43m

Rapid City

vie. 10/3

4:24 pm-11:43 pm

1 stop8h 19m

$330

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

lun. 9/29

5:26 am-4:04 pm

1 stop9h 38m

Rapid City

jue. 10/2

4:38 pm-10:59 pm

1 stop7h 21m

$371

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 January is, on average, the cheapest month to fly to Rapid City from Seattle, with most prices found around $345. 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 $368.

What is the cheapest day to depart on your flight to Rapid City?

According to our data, Thursday is the cheapest day to fly to Rapid City from Seattle. The lowest ticket price found for a Thursday departure recently was $591. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Monday, with ticket prices averaging around $691.

What is the cheapest time of day to depart on your flight to Rapid City?

Our most recent data shows that the best time of day to fly to Rapid City is in the evening. Flights from Seattle to Rapid City during this time can be as low as $530. Flights at noon are often more expensive with an average ticket price of $673.

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 $529 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 $360 on momondo.

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

As of August 2025, prices for Seattle to Rapid City flights are approximately 25% 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

Direct flights

None
There are no direct flights from Seattle to Rapid City. There are no popular flight routes from Seattle to Rapid City.
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  • 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 23m 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
333 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $344Free CancellationRating
7.4
8,928 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
Spearfish
Custer
Hot Springs
Wall
Hill City

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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lun. 8/25
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