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Cheap flights from Washington to Rapid City from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Rapid City departing on 7/20. 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 Washington to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 12:24 pm
GEG
-
RAP
6h 24m
1 stop
United Airlines Logo
10:13 am - 2:58 pm
RAP
-
GEG
5h 45m
1 stop
$317United Airlines
Sat, Aug 29 - Tue, Sep 1
Multiple Airlines Logo
7:17 pm - 9:14 am
PDX
-
RAP
12h 57m
1 stop
Multiple Airlines Logo
2:34 pm - 10:20 am
RAP
-
PDX
20h 46m
1 stop
$335Multiple Airlines
Sun, May 24 - Thu, May 28
American Airlines Logo
11:59 pm - 9:49 am
PDX
-
RAP
8h 50m
1 stop
American Airlines Logo
5:02 pm - 11:07 pm
RAP
-
PDX
7h 05m
1 stop
$339American Airlines
Sat, Sep 5 - Tue, Sep 8
Delta Logo
6:05 am - 3:46 pm
SEA
-
RAP
8h 41m
1 stop
Delta Logo
4:00 pm - 11:59 pm
RAP
-
SEA
8h 59m
1 stop
$339Delta
Fri, Oct 23 - Mon, Oct 26
Allegiant Air Logo
7:17 pm - 9:14 am
PDX
-
RAP
12h 57m
1 stop
Allegiant Air Logo
3:04 pm - 6:27 pm
RAP
-
PDX
28h 23m
1 stop
$342Allegiant Air
Sun, May 24 - Sat, May 30
Delta Logo
3:10 pm - 10:24 pm
PDX
-
RAP
6h 14m
1 stop
Delta Logo
2:36 pm - 11:44 pm
RAP
-
PDX
10h 08m
2 stops
$344Delta
Tue, May 26 - Fri, Jun 5
Delta Logo
6:05 am - 3:49 pm
SEA
-
RAP
8h 44m
1 stop
Delta Logo
6:47 am - 4:30 pm
RAP
-
SEA
10h 43m
2 stops
$344Delta
Fri, Jun 12 - Tue, Jun 16
Multiple Airlines Logo
7:17 pm - 9:14 am
PDX
-
RAP
12h 57m
1 stop
Multiple Airlines Logo
2:34 pm - 4:46 pm
RAP
-
PDX
27h 12m
2 stops
$347Multiple Airlines
Sun, May 24 - Thu, May 28
American Airlines Logo
11:58 pm - 11:14 am
SEA
-
RAP
10h 16m
1 stop
American Airlines Logo
5:00 pm - 12:59 am
RAP
-
SEA
8h 59m
1 stop
$400American Airlines
Wed, Jun 3 - Tue, Jun 9
Allegiant Air Logo
10:51 am - 10:42 am
PSC
-
RAP
22h 51m
1 stop
Allegiant Air Logo
2:29 pm - 2:47 pm
RAP
-
PSC
25h 18m
1 stop
$545Allegiant Air
Sun, May 17 - Thu, May 21

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American Airlines flights from State of Washington to Rapid City

Our best American Airlines deals on State of Washington to Rapid City flight tickets
American Airlines
Sep 5
PDX11:59 pmPortland
8h 50m
1 stop
RAP9:49 amRapid City
Sep 8
RAP5:02 pmRapid City
7h 05m
1 stop
PDX11:07 pmPortland
$339
American Airlines
May 29
PDX6:15 amPortland
7h 38m
1 stop
RAP2:53 pmRapid City
Jun 1
RAP3:23 pmRapid City
9h 29m
1 stop
PDX11:52 pmPortland
$381
American Airlines
Sep 23
PDX1:30 pmPortland
7h 28m
1 stop
RAP9:58 pmRapid City
Sep 29
RAP11:41 amRapid City
6h 15m
1 stop
PDX4:56 pmPortland
$390

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
Aug 29
GEG5:00 amSpokane
6h 24m
1 stop
RAP12:24 pmRapid City
Sep 1
RAP10:13 amRapid City
5h 45m
1 stop
GEG2:58 pmSpokane
$317
United Airlines
Oct 23
SEA2:34 pmSeattle/Tacoma Intl
6h 54m
1 stop
RAP10:28 pmRapid City
Oct 26
RAP5:48 pmRapid City
6h 11m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$339
United Airlines
May 25
PDX5:00 amPortland
5h 30m
1 stop
RAP11:30 amRapid City
Jun 1
RAP5:53 pmRapid City
6h 07m
1 stop
PDX11:00 pmPortland
$369

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 May 5, 2026.
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

Cheapest round-trip
Quickest round-trip

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Sat 8/29

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Tue 9/1

10:13 am-2:58 pm

1 stop5h 45m

$317

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 5/24

7:17 pm-9:14 am

1 stop12h 57m

Rapid City

Thu 5/28

2:34 pm-10:20 am

1 stop20h 46m

$335

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 9/5

11:59 pm-9:49 am

1 stop8h 50m

Rapid City

Tue 9/8

5:02 pm-11:07 pm

1 stop7h 05m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 10/23

6:05 am-3:46 pm

1 stop8h 41m

Rapid City

Mon 10/26

4:00 pm-11:59 pm

1 stop8h 59m

$339

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 5/24

7:17 pm-9:14 am

1 stop12h 57m

Rapid City

Sat 5/30

3:04 pm-6:27 pm

1 stop28h 23m

$342

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 5/26

3:10 pm-10:24 pm

1 stop6h 14m

Rapid City

Fri 6/5

2:36 pm-11:44 pm

2 stops10h 08m

$344

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 6/12

6:05 am-3:49 pm

1 stop8h 44m

Rapid City

Tue 6/16

6:47 am-4:30 pm

2 stops10h 43m

$344

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 5/24

7:17 pm-9:14 am

1 stop12h 57m

Rapid City

Thu 5/28

2:34 pm-4:46 pm

2 stops27h 12m

$347

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 6/3

11:58 pm-11:14 am

1 stop10h 16m

Rapid City

Tue 6/9

5:00 pm-12:59 am

1 stop8h 59m

$400

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Sun 5/17

10:51 am-10:42 am

1 stop22h 51m

Rapid City

Thu 5/21

2:29 pm-2:47 pm

1 stop25h 18m

$545

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 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

What is the cheapest month to fly to Rapid City?

The month of June is, on average, the cheapest month to fly to Rapid City from State of Washington, with most prices found around $137. If you aren’t able to travel to Rapid City during the month of June, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $159.

How far in advance should I book a flight from Washington 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 $474 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 $270 on momondo.

Can stopping save me money on State of Washington to Rapid City flights?

You could potentially save up to 65% on your flight if you consider stops on a State of Washington to Rapid City flight.

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

4h 45m

Direct flights

None
The fastest flight from State of Washington to Rapid City takes 4h 45m
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

Frequently asked questions about flying from Washington to Rapid City

  • 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?

  • 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 AirPriceFrom $137Free CancellationRating
6.8
334 reviews
Search Sun Country Air flights
DeltaPriceFrom $190Free CancellationRating
7.9
8,459 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,683 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
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.

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