What is the cheapest airline that flies from Washington to Rapid City?

Delta and United Airlines are the most popular carriers operating from Washington to Rapid City

What airlines fly to Rapid City?

United Airlines, Delta and Sun Country Air are the top three most popular airlines that fly to Rapid City from State of Washington according to our data. United Airlines is the first choice among our users, with 87% of people opting to fly with this airline when traveling to Rapid City. Keep in mind that there are 4 different airlines that fly to Rapid City on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Rapid City?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Rapid City you fly into. For example, flying from Seattle to Rapid City takes 5h 09m on average. On the other hand, flying from Pasco to Rapid City takes 5h 25m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Washington to Rapid City Airport?

Prices for flights from Washington to Rapid City Airport refresh daily.

How many operators does momondo search for flights from Washington to Rapid City Airport?

As of December 2025, there are 4 operators available to choose from for flights from Washington to Rapid City Airport.

How old do you have to be to fly from Washington to Rapid City Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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.

$191 Cheap Flights from Washington to Rapid City in 2025/26

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Find the cheapest flights from Washington to Rapid City

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 1:12 pm

PDX

RAP

7h 12m1 stop

8:30 am - 1:45 pm

RAP

PDX

6h 15m1 stop

$238United Airlines

Sun, Jan 11 - Sun, Jan 18

5:00 am - 1:12 pm

PDX

RAP

7h 12m1 stop

5:10 am - 12:34 pm

RAP

PDX

8h 24m2 stops

$243United Airlines

Sun, Jan 11 - Sun, Jan 18

6:30 am - 3:44 pm

GEG

RAP

8h 14m1 stop

6:00 am - 1:11 pm

RAP

GEG

8h 11m1 stop

$269Delta

Sun, Mar 1 - Mon, Mar 9

1:20 pm - 10:27 pm

GEG

RAP

8h 07m2 stops

6:00 am - 1:11 pm

RAP

GEG

8h 11m1 stop

$274Delta

Tue, Mar 3 - Mon, Mar 9

1:20 pm - 10:27 pm

GEG

RAP

8h 07m2 stops

6:00 am - 1:11 pm

RAP

GEG

8h 11m1 stop

$279Delta

Sat, Mar 7 - Mon, Mar 9

8:40 am - 3:22 pm

SEA

RAP

5h 42m1 stop

4:40 pm - 9:15 pm

RAP

SEA

5h 35m1 stop

$279United Airlines

Wed, Jan 14 - Sat, Jan 24

6:05 am - 3:25 pm

SEA

RAP

8h 20m1 stop

10:54 am - 6:29 pm

RAP

SEA

8h 35m2 stops

$284Delta

Wed, Jan 14 - Sat, Jan 24

12:35 pm - 9:15 pm

PDX

RAP

7h 40m1 stop

2:08 pm - 11:32 pm

RAP

PDX

10h 24m1 stop

$353American Airlines

Fri, Jan 16 - Mon, Jan 19

1:34 pm - 1:51 pm

PSC

RAP

23h 17m1 stop

2:36 pm - 4:07 pm

RAP

PSC

26h 31m1 stop

$590Allegiant Air

Thu, Dec 25 - Mon, Dec 29

5:53 am - 10:19 pm

ALW

RAP

15h 26m2 stops

5:38 am - 11:58 pm

RAP

ALW

19h 20m2 stops

$936American Airlines

Fri, Feb 13 - Tue, Feb 17

United Airlines flights from State of Washington to Rapid City

Our best United Airlines deals on State of Washington to Rapid City flight tickets

United Airlines

Jan 11

PDX5:00 amPortland

7h 12m

1 stop

RAP1:12 pmRapid City

Jan 18

RAP8:30 amRapid City

6h 15m

1 stop

PDX1:45 pmPortland

$238

Find similar

United Airlines

Jan 11

PDX5:00 amPortland

7h 12m

1 stop

RAP1:12 pmRapid City

Jan 18

RAP5:10 amRapid City

8h 24m

2 stops

PDX12:34 pmPortland

$243

Find similar

United Airlines

Jan 14

SEA8:40 amSeattle/Tacoma Intl

5h 42m

1 stop

RAP3:22 pmRapid City

Jan 24

RAP4:40 pmRapid City

5h 35m

1 stop

SEA9:15 pmSeattle/Tacoma Intl

$279

Find similar

Delta flights from State of Washington to Rapid City

Our best Delta deals on State of Washington to Rapid City flight tickets

Delta

Mar 1

GEG6:30 amSpokane

8h 14m

1 stop

RAP3:44 pmRapid City

Mar 9

RAP6:00 amRapid City

8h 11m

1 stop

GEG1:11 pmSpokane

$269

Find similar

Delta

Mar 3

GEG1:20 pmSpokane

8h 07m

2 stops

RAP10:27 pmRapid City

Mar 9

RAP6:00 amRapid City

8h 11m

1 stop

GEG1:11 pmSpokane

$274

Find similar

Delta

Mar 7

GEG1:20 pmSpokane

8h 07m

2 stops

RAP10:27 pmRapid City

Mar 9

RAP6:00 amRapid City

8h 11m

1 stop

GEG1:11 pmSpokane

$279

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 1/11

5:00 am-1:12 pm

1 stop7h 12m

Rapid City

Sun 1/18

8:30 am-1:45 pm

1 stop6h 15m

$238

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 1/11

5:00 am-1:12 pm

1 stop7h 12m

Rapid City

Sun 1/18

5:10 am-12:34 pm

2 stops8h 24m

$243

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Sun 3/1

6:30 am-3:44 pm

1 stop8h 14m

Rapid City

Mon 3/9

6:00 am-1:11 pm

1 stop8h 11m

$269

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 3/3

1:20 pm-10:27 pm

2 stops8h 07m

Rapid City

Mon 3/9

6:00 am-1:11 pm

1 stop8h 11m

$274

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Sat 3/7

1:20 pm-10:27 pm

2 stops8h 07m

Rapid City

Mon 3/9

6:00 am-1:11 pm

1 stop8h 11m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 1/14

8:40 am-3:22 pm

1 stop5h 42m

Rapid City

Sat 1/24

4:40 pm-9:15 pm

1 stop5h 35m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 1/14

6:05 am-3:25 pm

1 stop8h 20m

Rapid City

Sat 1/24

10:54 am-6:29 pm

2 stops8h 35m

$284

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 1/16

12:35 pm-9:15 pm

1 stop7h 40m

Rapid City

Mon 1/19

2:08 pm-11:32 pm

1 stop10h 24m

$353

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Thu 12/25

1:34 pm-1:51 pm

1 stop23h 17m

Rapid City

Mon 12/29

2:36 pm-4:07 pm

1 stop26h 31m

$590

Walla WallaRapid City

ALW - RAP

ALWRAP

Walla Walla

Fri 2/13

5:53 am-10:19 pm

2 stops15h 26m

Rapid City

Tue 2/17

5:38 am-11:58 pm

2 stops19h 20m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

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 State of Washington, 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 State of Washington. 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 State of Washington 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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $476 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from State of Washington for as low as $355 on momondo.

Cheap State of Washington to Rapid City flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Rapid City

Fastest flight time	5h 03m
Direct flights	None

The fastest flight from State of Washington to Rapid City takes 5h 03m

There are no direct flights from State of Washington to Rapid City. There are no popular flight routes from State of Washington to Rapid City.

Search flight deals

When did momondo last update prices for flights from Washington to Rapid City Airport?
Prices for flights from Washington to Rapid City Airport refresh daily.
How many operators does momondo search for flights from Washington to Rapid City Airport?
As of December 2025, there are 4 operators available to choose from for flights from Washington to Rapid City Airport.
How old do you have to be to fly from Washington to Rapid City Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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.

Best airlines flying from State of Washington to Rapid City

Compare and see reviews for airlines that fly from State of Washington to Rapid City with momondo

Airline	Rating	Free Cancellation	Price
Sun Country Air	PriceFrom $137	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $252	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights

Deadwood

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Sturgis

Custer

Spearfish

Hill City

Wall

Hot Springs

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Rapid City?

Finding the right flight to Rapid City from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rapid City quick and easy, saving you time and money.

Can I find flights from Washington to Rapid City with flexible booking policies on momondo?

Yes. All flights to Rapid City from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Rapid City?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Rapid City.

I’m not ready to book a flight from Washington to Rapid City right now. Can momondo alert me if prices change?

Price alerts on flights to Rapid City from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.