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Cheap flights from Seattle to Rapid City from $163

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 10/22. 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
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
5:05 am - 12:40 pmSEA-RAP
6h 35m1 stop
United Airlines Logo
5:15 am - 10:35 amRAP-SEA
6h 20m1 stop
$259United Airlines
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Sat, Nov 1 - Sat, Nov 8
Delta Logo
1:30 pm - 10:36 pmSEA-RAP
8h 06m2 stops
Delta Logo
10:33 am - 4:54 pmRAP-SEA
7h 21m1 stop
$264Delta
Find Deal
Sat, Nov 1 - Sat, Nov 8
Delta Logo
1:30 pm - 10:36 pmSEA-RAP
8h 06m2 stops
Delta Logo
10:33 am - 6:24 pmRAP-SEA
8h 51m2 stops
$269Delta
Find Deal
Sat, Nov 1 - Sat, Nov 8
Delta Logo
6:00 am - 3:45 pmSEA-RAP
8h 45m1 stop
Delta Logo
2:51 pm - 11:25 pmRAP-SEA
9h 34m2 stops
$284Delta
Find Deal
Fri, Dec 5 - Tue, Dec 9
United Airlines Logo
12:43 pm - 6:40 pmSEA-RAP
4h 57m1 stop
United Airlines Logo
12:56 pm - 5:53 pmRAP-SEA
5h 57m1 stop
$289United Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25
United Airlines Logo
5:00 am - 10:57 amSEA-RAP
4h 57m1 stop
United Airlines Logo
5:30 am - 2:24 pmRAP-SEA
9h 54m2 stops
$294United Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25
Multiple Airlines Logo
8:43 pm - 5:08 pmSEA-RAP
19h 25m2 stops
Multiple Airlines Logo
5:58 pm - 3:16 pmRAP-SEA
22h 18m1 stop
$332Multiple Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
8:45 am - 10:10 pmSEA-RAP
12h 25m2 stops
United Airlines Logo
3:21 pm - 11:30 pmRAP-SEA
9h 09m2 stops
$339United Airlines
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Wed, Feb 18 - Sat, Feb 28
American Airlines Logo
10:35 am - 9:16 pmSEA-RAP
9h 41m1 stop
American Airlines Logo
5:18 am - 1:10 pmRAP-SEA
8h 52m1 stop
$340American Airlines
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Fri, Nov 14 - Sat, Nov 15
American Airlines Logo
1:35 am - 11:31 amSEA-RAP
8h 56m1 stop
American Airlines Logo
12:30 pm - 9:18 pmRAP-SEA
9h 48m1 stop
$473American Airlines
Find Deal
Tue, Feb 17 - Sat, Feb 28

American Airlines flights from Seattle to Rapid City

Our best American Airlines deals on Seattle to Rapid City flight tickets
American Airlines
Nov 14
SEA10:35 amSeattle/Tacoma Intl
9h 41m
1 stop
RAP9:16 pmRapid City
Nov 15
RAP5:18 amRapid City
8h 52m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$340
Find similar
American Airlines
Feb 17
SEA1:35 amSeattle/Tacoma Intl
8h 56m
1 stop
RAP11:31 amRapid City
Feb 28
RAP12:30 pmRapid City
9h 48m
1 stop
SEA9:18 pmSeattle/Tacoma Intl
$473
Find similar
American Airlines
Dec 4
SEA12:31 amSeattle/Tacoma Intl
19h 45m
1 stop
RAP9:16 pmRapid City
Dec 9
RAP5:15 amRapid City
16h 58m
1 stop
SEA9:13 pmSeattle/Tacoma Intl
$597
Find similar

Delta flights from Seattle to Rapid City

Our best Delta deals on Seattle to Rapid City flight tickets
Delta
Nov 1
SEA1:30 pmSeattle/Tacoma Intl
8h 06m
2 stops
RAP10:36 pmRapid City
Nov 8
RAP10:33 amRapid City
7h 21m
1 stop
SEA4:54 pmSeattle/Tacoma Intl
$264
Find similar
Delta
Nov 1
SEA1:30 pmSeattle/Tacoma Intl
8h 06m
2 stops
RAP10:36 pmRapid City
Nov 8
RAP10:33 amRapid City
8h 51m
2 stops
SEA6:24 pmSeattle/Tacoma Intl
$269
Find similar
Delta
Dec 5
SEA6:00 amSeattle/Tacoma Intl
8h 45m
1 stop
RAP3:45 pmRapid City
Dec 9
RAP2:51 pmRapid City
9h 34m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
$284
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 October 10, 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

Sat 11/1

5:05 am-12:40 pm

1 stop6h 35m

Rapid City

Sat 11/8

5:15 am-10:35 am

1 stop6h 20m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 11/1

1:30 pm-10:36 pm

2 stops8h 06m

Rapid City

Sat 11/8

10:33 am-4:54 pm

1 stop7h 21m

$264

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 11/1

1:30 pm-10:36 pm

2 stops8h 06m

Rapid City

Sat 11/8

10:33 am-6:24 pm

2 stops8h 51m

$269

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 12/5

6:00 am-3:45 pm

1 stop8h 45m

Rapid City

Tue 12/9

2:51 pm-11:25 pm

2 stops9h 34m

$284

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/22

12:43 pm-6:40 pm

1 stop4h 57m

Rapid City

Sat 10/25

12:56 pm-5:53 pm

1 stop5h 57m

$289

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/22

5:00 am-10:57 am

1 stop4h 57m

Rapid City

Sat 10/25

5:30 am-2:24 pm

2 stops9h 54m

$294

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/22

8:43 pm-5:08 pm

2 stops19h 25m

Rapid City

Sun 10/26

5:58 pm-3:16 pm

1 stop22h 18m

$332

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 2/18

8:45 am-10:10 pm

2 stops12h 25m

Rapid City

Sat 2/28

3:21 pm-11:30 pm

2 stops9h 09m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 11/14

10:35 am-9:16 pm

1 stop9h 41m

Rapid City

Sat 11/15

5:18 am-1:10 pm

1 stop8h 52m

$340

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 2/17

1:35 am-11:31 am

1 stop8h 56m

Rapid City

Sat 2/28

12:30 pm-9:18 pm

1 stop9h 48m

$473

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 $508 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 $396 on momondo.

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

As of October 2025, prices for Seattle to Rapid City flights are approximately 23% more expensive 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.
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 4h 57m 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
335 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
7,970 reviews
Search Delta flights
United AirlinesPriceFrom $341Free CancellationRating
7.4
8,966 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
Spearfish
Custer
Wall
Hill City
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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