Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Rapid City to Washington from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Washington departing on 11/25. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Rapid City to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:15 am - 9:38 amRAP-PDX
5h 23m1 stop
United Airlines Logo
5:00 am - 1:11 pmPDX-RAP
7h 11m1 stop
$259United Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
United Airlines Logo
4:40 pm - 9:15 pmRAP-SEA
5h 35m1 stop
United Airlines Logo
12:25 pm - 8:32 pmSEA-RAP
7h 07m1 stop
$259United Airlines
Find Deal
Sat, Jan 17 - Thu, Jan 22
Delta Logo
2:51 pm - 10:40 pmRAP-PDX
8h 49m2 stops
Delta Logo
12:32 am - 10:22 amPDX-RAP
8h 50m1 stop
$264Delta
Find Deal
Fri, Dec 5 - Sat, Dec 6
United Airlines Logo
2:40 pm - 9:15 pmRAP-SEA
7h 35m1 stop
United Airlines Logo
9:00 am - 7:19 pmSEA-RAP
9h 19m2 stops
$264United Airlines
Find Deal
Sat, Jan 17 - Thu, Jan 22
Delta Logo
2:51 pm - 10:40 pmRAP-PDX
8h 49m2 stops
Delta Logo
7:30 pm - 10:22 amPDX-RAP
13h 52m2 stops
$269Delta
Find Deal
Fri, Dec 5 - Sun, Dec 7
United Airlines Logo
4:35 pm - 9:46 pmRAP-SEA
6h 11m1 stop
United Airlines Logo
5:00 am - 1:11 pmSEA-RAP
7h 11m1 stop
$277United Airlines
Find Deal
Wed, Dec 10 - Mon, Dec 15
Multiple Airlines Logo
10:10 pm - 8:04 amRAP-PDX
34h 54m2 stops
Multiple Airlines Logo
5:28 pm - 9:13 amPDX-RAP
14h 45m1 stop
$289Multiple Airlines
Find Deal
Sun, Nov 23 - Fri, Nov 28
Multiple Airlines Logo
10:10 pm - 1:08 pmRAP-PDX
15h 58m1 stop
Multiple Airlines Logo
5:28 pm - 9:13 amPDX-RAP
14h 45m1 stop
$296Multiple Airlines
Find Deal
Sun, Nov 23 - Fri, Nov 28
American Airlines Logo
1:44 pm - 9:42 amRAP-SEA
20h 58m1 stop
American Airlines Logo
12:31 am - 1:12 pmSEA-RAP
11h 41m1 stop
$636American Airlines
Find Deal
Tue, Dec 2 - Mon, Dec 8
American Airlines Logo
5:15 am - 6:55 pmRAP-SEA
14h 40m1 stop
American Airlines Logo
12:31 am - 9:16 pmSEA-RAP
19h 45m1 stop
$657American Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14

United Airlines flights from Rapid City to State of Washington

Our best United Airlines deals on Rapid City to State of Washington flight tickets
United Airlines
Jan 17
RAP4:40 pmRapid City
5h 35m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
Jan 22
SEA12:25 pmSeattle/Tacoma Intl
7h 07m
1 stop
RAP8:32 pmRapid City
$259
Find similar
United Airlines
Jan 17
RAP2:40 pmRapid City
7h 35m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
Jan 22
SEA9:00 amSeattle/Tacoma Intl
9h 19m
2 stops
RAP7:19 pmRapid City
$264
Find similar
United Airlines
Dec 10
RAP4:35 pmRapid City
6h 11m
1 stop
SEA9:46 pmSeattle/Tacoma Intl
Dec 15
SEA5:00 amSeattle/Tacoma Intl
7h 11m
1 stop
RAP1:11 pmRapid City
$277
Find similar

Delta flights from Rapid City to State of Washington

Our best Delta deals on Rapid City to State of Washington flight tickets
Delta
Dec 5
RAP2:51 pmRapid City
8h 49m
2 stops
PDX10:40 pmPortland
Dec 6
PDX12:32 amPortland
8h 50m
1 stop
RAP10:22 amRapid City
$264
Find similar
Delta
Dec 5
RAP2:51 pmRapid City
8h 49m
2 stops
PDX10:40 pmPortland
Dec 7
PDX7:30 pmPortland
13h 52m
2 stops
RAP10:22 amRapid City
$269
Find similar
Delta
Mar 3
RAP10:54 amRapid City
7h 41m
1 stop
PDX5:35 pmPortland
Mar 7
PDX6:00 amPortland
8h 25m
1 stop
RAP3:25 pmRapid City
$284
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to State of Washington 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 4, 2025.
Use the filters below to find and compare flights from Rapid City to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 12/12

5:15 am-9:38 am

1 stop5h 23m

Portland

Mon 12/15

5:00 am-1:11 pm

1 stop7h 11m

$259

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sat 1/17

4:40 pm-9:15 pm

1 stop5h 35m

Seattle/Tacoma Intl

Thu 1/22

12:25 pm-8:32 pm

1 stop7h 07m

$259

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 12/5

2:51 pm-10:40 pm

2 stops8h 49m

Portland

Sat 12/6

12:32 am-10:22 am

1 stop8h 50m

$264

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sat 1/17

2:40 pm-9:15 pm

1 stop7h 35m

Seattle/Tacoma Intl

Thu 1/22

9:00 am-7:19 pm

2 stops9h 19m

$264

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 12/5

2:51 pm-10:40 pm

2 stops8h 49m

Portland

Sun 12/7

7:30 pm-10:22 am

2 stops13h 52m

$269

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 12/10

4:35 pm-9:46 pm

1 stop6h 11m

Seattle/Tacoma Intl

Mon 12/15

5:00 am-1:11 pm

1 stop7h 11m

$277

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 11/23

10:10 pm-8:04 am

2 stops34h 54m

Portland

Fri 11/28

5:28 pm-9:13 am

1 stop14h 45m

$289

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 11/23

10:10 pm-1:08 pm

1 stop15h 58m

Portland

Fri 11/28

5:28 pm-9:13 am

1 stop14h 45m

$296

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Tue 12/2

1:44 pm-9:42 am

1 stop20h 58m

Seattle/Tacoma Intl

Mon 12/8

12:31 am-1:12 pm

1 stop11h 41m

$636

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 12/10

5:15 am-6:55 pm

1 stop14h 40m

Seattle/Tacoma Intl

Sun 12/14

12:31 am-9:16 pm

1 stop19h 45m

$657

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Washington from

How to get the cheapest flight ticket from Rapid City to State of Washington

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 State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Rapid City, with most prices found around $321. If you aren’t able to travel to State of Washington during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $325.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Rapid City to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $589. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Rapid City to State of Washington for around $700.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $582. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $632 on average. Flights to State of Washington from Rapid City in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Rapid City to State of Washington flight deals and tips

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

Direct flights

None
There are no direct flights from Rapid City to State of Washington. There are no popular flight routes from Rapid City to State of Washington.
Search flight deals

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

    Prices for flights from Rapid City Airport to Washington are refreshed on a daily basis.

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

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

    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 Rapid City Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Rapid City to State of Washington

Compare and see reviews for airlines that fly from Rapid City to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,003 reviews
Search Delta flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rapid City to Washington. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Washington from Rapid City which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Rapid City to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Washington from Rapid City 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.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 12/4
Thu 12/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $54
Flights to Orlandofrom $47
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $54
Flights to Washington, D.C.from $54
Flights to Bostonfrom $40
Flights to Atlantafrom $40
Flights to Dallasfrom $49
Flights to Seattlefrom $68