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

Delta, Sun Country Air, and United Airlines are the most popular carriers operating from Portland to Rapid City

What airlines fly to Rapid City?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Rapid City from Portland according to our data. United Airlines is the first choice among our users, with 88% of people opting to fly with this airline when traveling to Rapid City. Keep in mind that there are 3 different airlines that fly to Rapid City on a routine basis, so you have a few additional options to choose from.

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?

As of July 2025, there are 3 operators available to choose from 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.

$197 Cheap Flights from Portland to Rapid City in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to Rapid City

Round-trip

One-way

Last minute

Cheap round-trip flights

5:29 am - 4:03 pmPDX-RAP

9h 34m1 stop

5:32 am - 1:01 pmRAP-PDX

8h 29m1 stop

$259American Airlines

Find Deal

Sat, Oct 25 - Wed, Oct 29

4:07 pm - 9:59 pmPDX-RAP

4h 52m1 stop

8:32 am - 1:03 pmRAP-PDX

5h 31m1 stop

$329United Airlines

Find Deal

Sat, Aug 30 - Wed, Sep 3

12:50 am - 9:53 amPDX-RAP

8h 03m1 stop

10:33 am - 5:27 pmRAP-PDX

7h 54m1 stop

$333Delta

Find Deal

Fri, Oct 24 - Wed, Oct 29

1:45 pm - 9:59 pmPDX-RAP

7h 14m2 stops

7:00 am - 1:03 pmRAP-PDX

7h 03m1 stop

$334United Airlines

Find Deal

Sat, Aug 30 - Wed, Sep 3

12:50 am - 9:53 amPDX-RAP

8h 03m1 stop

10:33 am - 8:51 pmRAP-PDX

11h 18m2 stops

$338Delta

Find Deal

Fri, Oct 24 - Wed, Oct 29

1:45 pm - 9:59 pmPDX-RAP

7h 14m2 stops

8:32 am - 6:29 pmRAP-PDX

10h 57m2 stops

$339United Airlines

Find Deal

Sat, Aug 30 - Wed, Sep 3

11:48 am - 9:50 pmPDX-RAP

9h 02m1 stop

5:34 am - 12:57 pmRAP-PDX

8h 23m1 stop

$343American Airlines

Find Deal

Thu, Oct 30 - Sun, Nov 2

5:30 am - 8:34 pmPDX-RAP

14h 04m3 stops

8:45 am - 6:36 pmRAP-PDX

10h 51m2 stops

$344United Airlines

Find Deal

Sat, Oct 25 - Wed, Oct 29

4:16 pm - 10:00 pmPDX-RAP

4h 44m1 stop

5:30 am - 9:32 amRAP-PDX

5h 02m1 stop

$358United Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

6:20 am - 1:45 pmPDX-RAP

6h 25m1 stop

10:33 am - 5:27 pmRAP-PDX

7h 54m1 stop

$361Delta

Find Deal

Thu, Oct 23 - Sun, Oct 26

United Airlines flights from Portland to Rapid City

Our best United Airlines deals on Portland to Rapid City flight tickets

United Airlines

Aug 30

PDX4:07 pmPortland

4h 52m

1 stop

RAP9:59 pmRapid City

Sep 3

RAP8:32 amRapid City

5h 31m

1 stop

PDX1:03 pmPortland

$329

Find similar

United Airlines

Aug 30

PDX1:45 pmPortland

7h 14m

2 stops

RAP9:59 pmRapid City

Sep 3

RAP7:00 amRapid City

7h 03m

1 stop

PDX1:03 pmPortland

$334

Find similar

United Airlines

Aug 30

PDX1:45 pmPortland

7h 14m

2 stops

RAP9:59 pmRapid City

Sep 3

RAP8:32 amRapid City

10h 57m

2 stops

PDX6:29 pmPortland

$339

Find similar

American Airlines flights from Portland to Rapid City

Our best American Airlines deals on Portland to Rapid City flight tickets

American Airlines

Oct 25

PDX5:29 amPortland

9h 34m

1 stop

RAP4:03 pmRapid City

Oct 29

RAP5:32 amRapid City

8h 29m

1 stop

PDX1:01 pmPortland

$259

Find similar

American Airlines

Oct 30

PDX11:48 amPortland

9h 02m

1 stop

RAP9:50 pmRapid City

Nov 2

RAP5:34 amRapid City

8h 23m

1 stop

PDX12:57 pmPortland

$343

Find similar

American Airlines

Oct 30

PDX5:29 amPortland

9h 29m

1 stop

RAP3:58 pmRapid City

Nov 2

RAP5:34 amRapid City

8h 23m

1 stop

PDX12:57 pmPortland

$365

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 10/25

5:29 am-4:03 pm

1 stop9h 34m

Rapid City

Wed 10/29

5:32 am-1:01 pm

1 stop8h 29m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/30

4:07 pm-9:59 pm

1 stop4h 52m

Rapid City

Wed 9/3

8:32 am-1:03 pm

1 stop5h 31m

$329

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 10/24

12:50 am-9:53 am

1 stop8h 03m

Rapid City

Wed 10/29

10:33 am-5:27 pm

1 stop7h 54m

$333

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/30

1:45 pm-9:59 pm

2 stops7h 14m

Rapid City

Wed 9/3

7:00 am-1:03 pm

1 stop7h 03m

$334

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 10/24

12:50 am-9:53 am

1 stop8h 03m

Rapid City

Wed 10/29

10:33 am-8:51 pm

2 stops11h 18m

$338

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/30

1:45 pm-9:59 pm

2 stops7h 14m

Rapid City

Wed 9/3

8:32 am-6:29 pm

2 stops10h 57m

$339

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 10/30

11:48 am-9:50 pm

1 stop9h 02m

Rapid City

Sun 11/2

5:34 am-12:57 pm

1 stop8h 23m

$343

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 10/25

5:30 am-8:34 pm

3 stops14h 04m

Rapid City

Wed 10/29

8:45 am-6:36 pm

2 stops10h 51m

$344

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 8/14

4:16 pm-10:00 pm

1 stop4h 44m

Rapid City

Mon 8/18

5:30 am-9:32 am

1 stop5h 02m

$358

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 10/23

6:20 am-1:45 pm

1 stop6h 25m

Rapid City

Sun 10/26

10:33 am-5:27 pm

1 stop7h 54m

$361

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 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

Prices

Airlines

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 $343. 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 $349.

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 Portland. The lowest ticket price found for a Thursday departure recently was $411. 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 $604.

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 Portland to Rapid City during this time can be as low as $359. Flights in the morning are often more expensive with an average ticket price of $498.

How far in advance should I book a flight to Rapid City?

You are more likely to see cheaper flights to Rapid City from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from Portland for as low as $254 on momondo.

Can stopping save me money on Portland to Rapid City flights?

You could potentially save up to 17% on your flight if you consider stops on a Portland to Rapid City flight.

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

Best Price Found	$197
Fastest flight time	4h 44m
Direct flights	None
Airports in Rapid City	1 airport

The best one-way flight to Rapid City from Portland in the past 72 hours is $197. The best round-trip flight deal from Portland to Rapid City found on momondo in the last 72 hours is $259.

The fastest flight from Portland to Rapid City takes 4h 44m

There are no direct flights from Portland to Rapid City. Popular non-direct route for this connection is Portland Airport - Rapid City Airport.

There is 1 airport near Rapid City: Rapid City (RAP)

Search flight deals

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 44m 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?
As of July 2025, there are 3 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Portland to Rapid City is United Airlines, representing 88% of all bookings. The subsequent popular airlines are American Airlines at 7% and Delta at 5%.

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
Delta	PriceFrom $258	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $308	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights

Deadwood

Sturgis

Keystone

Spearfish

Custer

Hot Springs

Wall

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.