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Cheap flights from Seattle to Rapid City from $241

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 1/16. 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.
Delta Logo
3:35 pm - 10:28 pmSEA-RAP
5h 53m1 stop
Delta Logo
10:54 am - 4:45 pmRAP-SEA
6h 51m1 stop
$259Delta
Find Deal
Sat, Jan 10 - Wed, Jan 14
Delta Logo
1:35 pm - 10:28 pmSEA-RAP
7h 53m2 stops
Delta Logo
10:54 am - 4:45 pmRAP-SEA
6h 51m1 stop
$264Delta
Find Deal
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
12:35 pm - 6:54 pmSEA-RAP
5h 19m1 stop
United Airlines Logo
5:15 am - 10:10 amRAP-SEA
5h 55m1 stop
$284United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
United Airlines Logo
12:36 pm - 10:15 pmSEA-RAP
8h 39m2 stops
United Airlines Logo
5:15 am - 10:10 amRAP-SEA
5h 55m1 stop
$289United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Delta Logo
1:35 pm - 10:28 pmSEA-RAP
7h 53m2 stops
Delta Logo
6:00 am - 8:23 amRAP-SEA
27h 23m2 stops
$303Delta
Find Deal
Sat, Jan 10 - Wed, Jan 14
Delta Logo
11:55 pm - 10:22 amSEA-RAP
9h 27m1 stop
Delta Logo
11:00 am - 5:00 pmRAP-SEA
7h 00m1 stop
$309Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
5:00 am - 11:25 amSEA-RAP
5h 25m1 stop
United Airlines Logo
4:30 pm - 10:59 pmRAP-SEA
7h 29m1 stop
$312United Airlines
Find Deal
Tue, Jan 6 - Wed, Jun 10
Delta Logo
1:40 pm - 10:46 pmSEA-RAP
8h 06m2 stops
Delta Logo
6:05 am - 12:58 pmRAP-SEA
7h 53m1 stop
$314Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
1:40 pm - 10:46 pmSEA-RAP
8h 06m2 stops
Delta Logo
2:51 pm - 11:25 pmRAP-SEA
9h 34m2 stops
$319Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
1:35 pm - 10:28 pmSEA-RAP
7h 53m2 stops
Delta Logo
6:00 am - 6:23 pmRAP-SEA
13h 23m2 stops
$328Delta
Find Deal
Sat, Jan 10 - Wed, Jan 14

United Airlines flights from Seattle to Rapid City

Our best United Airlines deals on Seattle to Rapid City flight tickets
United Airlines
Dec 10
SEA12:35 pmSeattle/Tacoma Intl
5h 19m
1 stop
RAP6:54 pmRapid City
Dec 17
RAP5:15 amRapid City
5h 55m
1 stop
SEA10:10 amSeattle/Tacoma Intl
$284
Find similar
United Airlines
Dec 10
SEA12:36 pmSeattle/Tacoma Intl
8h 39m
2 stops
RAP10:15 pmRapid City
Dec 17
RAP5:15 amRapid City
5h 55m
1 stop
SEA10:10 amSeattle/Tacoma Intl
$289
Find similar
United Airlines
Jan 6
SEA5:00 amSeattle/Tacoma Intl
5h 25m
1 stop
RAP11:25 amRapid City
Jun 10
RAP4:30 pmRapid City
7h 29m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$312
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American Airlines flights from Seattle to Rapid City

Our best American Airlines deals on Seattle to Rapid City flight tickets
American Airlines
Dec 8
SEA12:31 amSeattle/Tacoma Intl
19h 45m
1 stop
RAP9:16 pmRapid City
Dec 13
RAP1:47 pmRapid City
8h 11m
1 stop
SEA8:58 pmSeattle/Tacoma Intl
$583
Find similar
American Airlines
May 15
SEA3:21 pmSeattle/Tacoma Intl
18h 53m
1 stop
RAP11:14 amRapid City
May 18
RAP11:46 amRapid City
12h 19m
1 stop
SEA11:05 pmSeattle/Tacoma Intl
$590
Find similar
American Airlines
May 18
SEA3:21 pmSeattle/Tacoma Intl
18h 53m
1 stop
RAP11:14 amRapid City
May 22
RAP6:14 pmRapid City
16h 10m
1 stop
SEA9:24 amSeattle/Tacoma Intl
$628
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 November 26, 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 1/10

3:35 pm-10:28 pm

1 stop5h 53m

Rapid City

Wed 1/14

10:54 am-4:45 pm

1 stop6h 51m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 1/10

1:35 pm-10:28 pm

2 stops7h 53m

Rapid City

Wed 1/14

10:54 am-4:45 pm

1 stop6h 51m

$264

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 12/10

12:35 pm-6:54 pm

1 stop5h 19m

Rapid City

Wed 12/17

5:15 am-10:10 am

1 stop5h 55m

$284

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 12/10

12:36 pm-10:15 pm

2 stops8h 39m

Rapid City

Wed 12/17

5:15 am-10:10 am

1 stop5h 55m

$289

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 1/10

1:35 pm-10:28 pm

2 stops7h 53m

Rapid City

Wed 1/14

6:00 am-8:23 am

2 stops27h 23m

$303

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 12/9

11:55 pm-10:22 am

1 stop9h 27m

Rapid City

Sat 12/13

11:00 am-5:00 pm

1 stop7h 00m

$309

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 1/6

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Wed 6/10

4:30 pm-10:59 pm

1 stop7h 29m

$312

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 12/9

1:40 pm-10:46 pm

2 stops8h 06m

Rapid City

Sat 12/13

6:05 am-12:58 pm

1 stop7h 53m

$314

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 12/9

1:40 pm-10:46 pm

2 stops8h 06m

Rapid City

Sat 12/13

2:51 pm-11:25 pm

2 stops9h 34m

$319

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 1/10

1:35 pm-10:28 pm

2 stops7h 53m

Rapid City

Wed 1/14

6:00 am-6:23 pm

2 stops13h 23m

$328

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 October is also cheap. Prices for this month can be found on momondo for an average of $354.

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 $468 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 $378 on momondo.

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

As of November 2025, prices for Seattle to Rapid City flights are approximately 20% 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 30m

Direct flights

None
The fastest flight from Seattle to Rapid City takes 5h 30m
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 19m 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
11,039 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,049 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
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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