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

United Airlines is the most popular carrier operating from Rapid City to Washington

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?

As of November 2026, there is 1 operator available to choose from 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.

$270 Cheap Flights from Rapid City to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Rapid City to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:56 pm - 12:37 pmRAP Rapid City-SEA Seattle/Tacoma Intl

15h 41m1 stop Las Vegas Harry Reid Intl

9:53 pm - 9:12 amSEA Seattle/Tacoma Intl-RAP Rapid City

10h 19m1 stop Las Vegas Harry Reid Intl

$273Multiple Airlines

Thu, Nov 19 - Mon, Nov 23

9:56 pm - 12:37 pmRAP Rapid City-SEA Seattle/Tacoma Intl

15h 41m1 stop Las Vegas Harry Reid Intl

9:53 pm - 9:12 amSEA Seattle/Tacoma Intl-RAP Rapid City

10h 19m1 stop Las Vegas Harry Reid Intl

$282Multiple Airlines

Thu, Nov 19 - Mon, Nov 23

7:00 am - 12:43 pmRAP Rapid City-GEG Spokane

6h 43m1 stop Denver Intl

5:05 am - 11:33 amGEG Spokane-RAP Rapid City

5h 28m1 stop Denver Intl

$349United Airlines

Thu, Dec 3 - Thu, Dec 10

10:44 am - 4:46 pmRAP Rapid City-SEA Seattle/Tacoma Intl

7h 02m1 stop Minneapolis St Paul

6:00 am - 3:45 pmSEA Seattle/Tacoma Intl-RAP Rapid City

8h 45m1 stop Minneapolis St Paul

$349Delta

Fri, Jan 8 - Fri, Jan 15

4:00 pm - 11:59 pmRAP Rapid City-SEA Seattle/Tacoma Intl

8h 59m1 stop Minneapolis St Paul

6:05 am - 3:46 pmSEA Seattle/Tacoma Intl-RAP Rapid City

8h 41m1 stop Minneapolis St Paul

$349Delta

Thu, Apr 22 - Sun, Apr 25

10:44 am - 6:39 pmRAP Rapid City-SEA Seattle/Tacoma Intl

8h 55m2 stops Minneapolis St Paul Salt Lake City

6:00 am - 3:45 pmSEA Seattle/Tacoma Intl-RAP Rapid City

8h 45m1 stop Minneapolis St Paul

$354Delta

Fri, Jan 8 - Fri, Jan 15

4:00 pm - 12:11 amRAP Rapid City-SEA Seattle/Tacoma Intl

9h 11m2 stops Minneapolis St Paul Salt Lake City

6:05 am - 3:46 pmSEA Seattle/Tacoma Intl-RAP Rapid City

8h 41m1 stop Minneapolis St Paul

$354Delta

Thu, Apr 22 - Sun, Apr 25

6:42 am - 6:27 pmRAP Rapid City-GEG Spokane

12h 45m2 stops Minneapolis St Paul Salt Lake City

6:45 am - 2:00 pmGEG Spokane-RAP Rapid City

6h 15m1 stop Minneapolis St Paul

$354Delta

Thu, Dec 3 - Thu, Dec 10

11:06 am - 5:30 pmRAP Rapid City-SEA Seattle/Tacoma Intl

7h 24m1 stop Minneapolis St Paul

6:00 am - 3:53 pmSEA Seattle/Tacoma Intl-RAP Rapid City

8h 53m1 stop Minneapolis St Paul

$359Delta

Sat, Dec 5 - Mon, Dec 14

4:00 pm - 11:15 pmRAP Rapid City-SEA Seattle/Tacoma Intl

8h 15m1 stop Denver Intl

5:05 am - 12:48 pmSEA Seattle/Tacoma Intl-RAP Rapid City

6h 43m1 stop Denver Intl

$409United Airlines

Thu, Nov 19 - Mon, Nov 23

Cheap last minute flights

Enter your travel dates to find the best prices.

8:30 am - 3:25 pmRAP Rapid City-GEG Spokane

7h 55m1 stop Denver Intl

5:00 am - 11:58 amGEG Spokane-RAP Rapid City

5h 58m1 stop Denver Intl

$454United Airlines

Sat, Nov 7 - Sat, Nov 14

6:45 am - 12:29 pmRAP Rapid City-SEA Seattle/Tacoma Intl

6h 44m1 stop Minneapolis St Paul

6:00 am - 1:43 pmSEA Seattle/Tacoma Intl-RAP Rapid City

6h 43m1 stop Minneapolis St Paul

$454Delta

Wed, Nov 11 - Wed, Nov 18

6:45 am - 12:06 pmRAP Rapid City-GEG Spokane

6h 21m1 stop Minneapolis St Paul

6:25 am - 3:54 pmGEG Spokane-RAP Rapid City

8h 29m1 stop Minneapolis St Paul

$454Delta

Tue, Nov 10 - Tue, Nov 17

2:37 pm - 8:08 pmRAP Rapid City-GEG Spokane

6h 31m1 stop Minneapolis St Paul

6:25 am - 3:54 pmGEG Spokane-RAP Rapid City

8h 29m1 stop Minneapolis St Paul

$454Delta

Sun, Nov 8 - Sat, Nov 14

6:45 am - 12:06 pmRAP Rapid City-GEG Spokane

6h 21m1 stop Minneapolis St Paul

6:25 am - 3:54 pmGEG Spokane-RAP Rapid City

8h 29m1 stop Minneapolis St Paul

$454Delta

Tue, Nov 10 - Sat, Nov 14

2:37 pm - 8:08 pmRAP Rapid City-GEG Spokane

6h 31m1 stop Minneapolis St Paul

2:07 pm - 10:41 pmGEG Spokane-RAP Rapid City

7h 34m1 stop Minneapolis St Paul

$454Delta

Sun, Nov 8 - Tue, Nov 17

6:45 am - 12:37 pmRAP Rapid City-GEG Spokane

6h 52m1 stop Minneapolis St Paul

6:25 am - 1:43 pmGEG Spokane-RAP Rapid City

6h 18m1 stop Minneapolis St Paul

$454Delta

Mon, Nov 9 - Tue, Nov 17

6:39 am - 12:15 pmRAP Rapid City-GEG Spokane

6h 36m1 stop Minneapolis St Paul

6:25 am - 3:54 pmGEG Spokane-RAP Rapid City

8h 29m1 stop Minneapolis St Paul

$454Delta

Sat, Nov 7 - Fri, Nov 13

6:39 am - 12:15 pmRAP Rapid City-GEG Spokane

6h 36m1 stop Minneapolis St Paul

2:07 pm - 10:41 pmGEG Spokane-RAP Rapid City

7h 34m1 stop Minneapolis St Paul

$454Delta

Sat, Nov 7 - Tue, Nov 17

5:50 pm - 11:15 pmRAP Rapid City-SEA Seattle/Tacoma Intl

6h 25m1 stop Denver Intl

5:05 am - 11:58 amSEA Seattle/Tacoma Intl-RAP Rapid City

5h 53m1 stop Denver Intl

$560United Airlines

Sun, Nov 8 - Sun, Nov 15

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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

Dec 3

RAP7:00 amRapid City

6h 43m

1 stop

GEG12:43 pmSpokane

Dec 10

GEG5:05 amSpokane

5h 28m

1 stop

RAP11:33 amRapid City

$349

United Airlines

Nov 19

RAP4:00 pmRapid City

8h 15m

1 stop

SEA11:15 pmSeattle/Tacoma Intl

Nov 23

SEA5:05 amSeattle/Tacoma Intl

6h 43m

1 stop

RAP12:48 pmRapid City

$439

United Airlines

Jan 22

RAP12:50 pmRapid City

6h 22m

1 stop

SEA6:12 pmSeattle/Tacoma Intl

Jan 26

SEA8:30 amSeattle/Tacoma Intl

6h 30m

1 stop

RAP4:00 pmRapid City

$449

Delta flights from Rapid City to State of Washington

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

Delta

Apr 22

RAP4:00 pmRapid City

8h 59m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Apr 25

SEA6:05 amSeattle/Tacoma Intl

8h 41m

1 stop

RAP3:46 pmRapid City

$349

Delta

Apr 22

RAP4:00 pmRapid City

9h 11m

2 stops

SEA12:11 amSeattle/Tacoma Intl

Apr 25

SEA6:05 amSeattle/Tacoma Intl

8h 41m

1 stop

RAP3:46 pmRapid City

$354

Delta

Dec 5

RAP11:06 amRapid City

7h 24m

1 stop

SEA5:30 pmSeattle/Tacoma Intl

Dec 14

SEA6:00 amSeattle/Tacoma Intl

8h 53m

1 stop

RAP3:53 pmRapid City

$359

momondo Fare Finder

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

Cheapest round-trip

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Thu 11/19

9:56 pm-12:37 pm

1 stop15h 41m

Seattle/Tacoma Intl

Mon 11/23

9:53 pm-9:12 am

1 stop10h 19m

$273

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Thu 11/19

9:56 pm-12:37 pm

1 stop15h 41m

Seattle/Tacoma Intl

Mon 11/23

9:53 pm-9:12 am

1 stop10h 19m

$282

Quickest round-trip

Rapid CitySpokane

RAP Rapid City - GEG Spokane

RAPGEG

Rapid City

Thu 12/3

7:00 am-12:43 pm

1 stop6h 43m

Spokane

Thu 12/10

5:05 am-11:33 am

1 stop5h 28m

$349

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Fri 1/8

10:44 am-4:46 pm

1 stop7h 02m

Seattle/Tacoma Intl

Fri 1/15

6:00 am-3:45 pm

1 stop8h 45m

$349

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Thu 4/22

4:00 pm-11:59 pm

1 stop8h 59m

Seattle/Tacoma Intl

Sun 4/25

6:05 am-3:46 pm

1 stop8h 41m

$349

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Fri 1/8

10:44 am-6:39 pm

2 stops8h 55m

Seattle/Tacoma Intl

Fri 1/15

6:00 am-3:45 pm

1 stop8h 45m

$354

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Thu 4/22

4:00 pm-12:11 am

2 stops9h 11m

Seattle/Tacoma Intl

Sun 4/25

6:05 am-3:46 pm

1 stop8h 41m

$354

Rapid CitySpokane

RAP Rapid City - GEG Spokane

RAPGEG

Rapid City

Thu 12/3

6:42 am-6:27 pm

2 stops12h 45m

Spokane

Thu 12/10

6:45 am-2:00 pm

1 stop6h 15m

$354

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Sat 12/5

11:06 am-5:30 pm

1 stop7h 24m

Seattle/Tacoma Intl

Mon 12/14

6:00 am-3:53 pm

1 stop8h 53m

$359

Rapid CitySeattle

RAP Rapid City - SEA Seattle/Tacoma Intl

RAPSEA

Rapid City

Thu 11/19

4:00 pm-11:15 pm

1 stop8h 15m

Seattle/Tacoma Intl

Mon 11/23

5:05 am-12:48 pm

1 stop6h 43m

$409

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 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

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Rapid City, with most prices found around $298. If you aren’t able to travel to State of Washington during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $348.

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

You could potentially save up to 32% on your flight if you consider stops on a Rapid City to State of Washington flight.

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

Best Price Found	$270
Fastest flight time	5h 36m
Direct flights	None

The best one-way flight to State of Washington from Rapid City in the past 72 hours is $270. The best round-trip flight deal from Rapid City to State of Washington found on momondo in the last 72 hours is $273.

The fastest flight from Rapid City to State of Washington takes 5h 36m

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

Frequently asked questions about flying from Rapid City to Washington

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?
As of November 2026, there is 1 operator available to choose from 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 Airlines	PriceFrom $248	Free Cancellation	Rating 7.3 10,470 reviews		Search United Airlines 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.