Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Rapid City from $199

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Rapid City departing on 10/13. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 11:55 am
PDX
-
RAP
5h 55m
1 stop
United Airlines Logo
5:00 am - 9:32 am
RAP
-
PDX
5h 32m
1 stop
$319United Airlines
Tue, Aug 18 - Sat, Aug 22
Delta Logo
3:00 pm - 10:18 pm
PDX
-
RAP
6h 18m
1 stop
Delta Logo
2:30 pm - 8:16 pm
RAP
-
PDX
6h 46m
1 stop
$329Delta
Thu, Sep 17 - Wed, Sep 23
United Airlines Logo
5:00 am - 12:24 pm
PDX
-
RAP
6h 24m
1 stop
United Airlines Logo
5:00 am - 9:32 am
RAP
-
PDX
5h 32m
1 stop
$350United Airlines
Fri, Aug 14 - Tue, Aug 18
United Airlines Logo
5:00 am - 11:55 am
PDX
-
RAP
5h 55m
1 stop
United Airlines Logo
11:22 am - 5:50 pm
RAP
-
PDX
7h 28m
1 stop
$355United Airlines
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
5:21 pm - 9:16 pm
PDX
-
RAP
26h 55m
2 stops
Multiple Airlines Logo
3:36 pm - 6:08 pm
RAP
-
PDX
27h 32m
1 stop
$357Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
6:49 pm - 9:11 pm
PDX
-
RAP
25h 22m
2 stops
Multiple Airlines Logo
10:06 pm - 4:54 pm
RAP
-
PDX
19h 48m
1 stop
$367Multiple Airlines
Sun, Aug 9 - Thu, Aug 13
Multiple Airlines Logo
5:21 pm - 9:16 pm
PDX
-
RAP
26h 55m
2 stops
Multiple Airlines Logo
10:06 pm - 4:54 pm
RAP
-
PDX
19h 48m
1 stop
$369Multiple Airlines
Wed, Aug 5 - Thu, Aug 13
United Airlines Logo
5:00 am - 12:24 pm
PDX
-
RAP
6h 24m
1 stop
United Airlines Logo
5:48 pm - 10:53 pm
RAP
-
PDX
6h 05m
1 stop
$371United Airlines
Wed, Sep 9 - Wed, Sep 23
American Airlines Logo
5:10 am - 12:06 pm
PDX
-
RAP
5h 56m
1 stop
American Airlines Logo
4:56 pm - 11:23 pm
RAP
-
PDX
7h 27m
1 stop
$379American Airlines
Fri, Sep 18 - Fri, Sep 25
Delta Logo
3:00 pm - 10:37 pm
PDX
-
RAP
6h 37m
1 stop
Delta Logo
2:31 pm - 8:16 pm
RAP
-
PDX
6h 45m
1 stop
$381Delta
Sat, Sep 5 - Tue, Sep 8

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

United Airlines flights from Portland to Rapid City

Our best United Airlines deals on Portland to Rapid City flight tickets
United Airlines
Aug 18
PDX5:00 amPortland
5h 55m
1 stop
RAP11:55 amRapid City
Aug 22
RAP5:00 amRapid City
5h 32m
1 stop
PDX9:32 amPortland
$319
United Airlines
Aug 14
PDX5:00 amPortland
6h 24m
1 stop
RAP12:24 pmRapid City
Aug 18
RAP5:00 amRapid City
5h 32m
1 stop
PDX9:32 amPortland
$350
United Airlines
Aug 13
PDX5:00 amPortland
5h 55m
1 stop
RAP11:55 amRapid City
Aug 17
RAP11:22 amRapid City
7h 28m
1 stop
PDX5:50 pmPortland
$355

American Airlines flights from Portland to Rapid City

Our best American Airlines deals on Portland to Rapid City flight tickets
American Airlines
Sep 18
PDX5:10 amPortland
5h 56m
1 stop
RAP12:06 pmRapid City
Sep 25
RAP4:56 pmRapid City
7h 27m
1 stop
PDX11:23 pmPortland
$379
American Airlines
Sep 23
PDX12:01 pmPortland
8h 22m
1 stop
RAP9:23 pmRapid City
Oct 7
RAP12:51 pmRapid City
9h 20m
1 stop
PDX9:11 pmPortland
$421
American Airlines
Sep 23
PDX12:01 pmPortland
8h 22m
1 stop
RAP9:23 pmRapid City
Oct 7
RAP5:04 pmRapid City
7h 35m
1 stop
PDX11:39 pmPortland
$431

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 July 23, 2026.
Use the filters below to find and compare flights from Portland to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 8/18

5:00 am-11:55 am

1 stop5h 55m

Rapid City

Sat 8/22

5:00 am-9:32 am

1 stop5h 32m

$319

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 9/17

3:00 pm-10:18 pm

1 stop6h 18m

Rapid City

Wed 9/23

2:30 pm-8:16 pm

1 stop6h 46m

$329

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 8/14

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Tue 8/18

5:00 am-9:32 am

1 stop5h 32m

$350

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 8/13

5:00 am-11:55 am

1 stop5h 55m

Rapid City

Mon 8/17

11:22 am-5:50 pm

1 stop7h 28m

$355

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 8/5

5:21 pm-9:16 pm

2 stops26h 55m

Rapid City

Wed 8/12

3:36 pm-6:08 pm

1 stop27h 32m

$357

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 8/9

6:49 pm-9:11 pm

2 stops25h 22m

Rapid City

Thu 8/13

10:06 pm-4:54 pm

1 stop19h 48m

$367

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 8/5

5:21 pm-9:16 pm

2 stops26h 55m

Rapid City

Thu 8/13

10:06 pm-4:54 pm

1 stop19h 48m

$369

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 9/9

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Wed 9/23

5:48 pm-10:53 pm

1 stop6h 05m

$371

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 9/18

5:10 am-12:06 pm

1 stop5h 56m

Rapid City

Fri 9/25

4:56 pm-11:23 pm

1 stop7h 27m

$379

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 9/5

3:00 pm-10:37 pm

1 stop6h 37m

Rapid City

Tue 9/8

2:31 pm-8:16 pm

1 stop6h 45m

$381

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Rapid City from

How to get the cheapest flight ticket from Portland 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 typical price of a round-trip flight between Portland and Rapid City?

Prices are currently low for flights on this route.

Typical prices usually range from $373 to $584.
The lowest price recently found on this route was $319.

What is the cheapest month to fly to Rapid City?

The month of April is, on average, the cheapest month to fly to Rapid City from Portland, with most prices found around $298. If you aren’t able to travel to Rapid City during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $354.

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

When to book flights from Portland to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Rapid City (PDX to RAP) flight deals and tips

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

Fastest flight time

4h 43m

Direct flights

None
The fastest flight from Portland to Rapid City takes 4h 43m
There are no direct flights from Portland to Rapid City. There are no popular flight routes from Portland to Rapid City.
Search flight deals

Frequently asked questions about flying from Portland to Rapid City

  • How far is Portland to Rapid City by plane?

    The straight-line distance from Portland to Rapid City is 955.5 mi. Typically, this will take 4h 43m by plane in normal conditions.

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

    Prices for flights from Portland Airport to Rapid City Airport were last updated today.

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

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

Best airlines flying from Portland to Rapid City

Compare and see reviews for airlines that fly from Portland to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.8
8,479 reviews
Search Delta flights
United AirlinesPriceFrom $289Free CancellationRating
7.4
10,024 reviews
Search United Airlines flights
American AirlinesPriceFrom $318Free CancellationRating
7.1
11,832 reviews
Search American 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
Wall
Hot Springs
Spearfish
Hill City

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Rapid City. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Rapid City from Portland with this policy.

How can momondo help me find flights from Portland 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 Portland to Rapid City.

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

If you are not ready to book a flight from Portland to Rapid City now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rapid City and let you know when they change.

An easier way to manage your Rapid City 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
Sat 8/22
Sat 8/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States