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Cheap flights from Rapid City to Portland from $172

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 Portland departing on 6/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Rapid City to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:27 am - 9:48 am
RAP
-
PDX
5h 21m
1 stop
United Airlines Logo
4:15 pm - 10:28 pm
PDX
-
RAP
5h 13m
1 stop
$299United Airlines
Thu, Apr 16 - Wed, Apr 22
United Airlines Logo
7:00 am - 2:31 pm
RAP
-
PDX
8h 31m
2 stops
United Airlines Logo
12:50 pm - 9:04 pm
PDX
-
RAP
7h 14m
1 stop
$304United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
5:00 am - 12:33 pm
RAP
-
PDX
8h 33m
2 stops
United Airlines Logo
4:15 pm - 10:27 pm
PDX
-
RAP
5h 12m
1 stop
$319United Airlines
Tue, Mar 24 - Wed, Apr 1
United Airlines Logo
5:00 am - 12:33 pm
RAP
-
PDX
8h 33m
2 stops
United Airlines Logo
4:15 pm - 10:27 pm
PDX
-
RAP
5h 12m
1 stop
$350United Airlines
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
2:45 pm - 9:10 pm
RAP
-
PDX
7h 25m
1 stop
United Airlines Logo
5:00 am - 11:24 am
PDX
-
RAP
5h 24m
1 stop
$353United Airlines
Tue, Mar 24 - Wed, Apr 1
United Airlines Logo
5:20 am - 9:38 am
RAP
-
PDX
5h 18m
1 stop
United Airlines Logo
5:00 am - 1:09 pm
PDX
-
RAP
7h 09m
1 stop
$363United Airlines
Tue, May 12 - Sun, May 17
United Airlines Logo
4:15 pm - 10:54 pm
RAP
-
PDX
7h 39m
1 stop
United Airlines Logo
4:15 pm - 10:20 pm
PDX
-
RAP
5h 05m
1 stop
$369United Airlines
Thu, Apr 23 - Tue, Apr 28
United Airlines Logo
5:00 am - 9:47 am
RAP
-
PDX
5h 47m
1 stop
United Airlines Logo
12:50 pm - 7:13 pm
PDX
-
RAP
5h 23m
1 stop
$406United Airlines
Tue, Jun 2 - Sun, Jun 7
United Airlines Logo
5:00 am - 9:47 am
RAP
-
PDX
5h 47m
1 stop
United Airlines Logo
4:15 pm - 10:25 pm
PDX
-
RAP
5h 10m
1 stop
$409United Airlines
Sat, Jul 18 - Wed, Jul 22
United Airlines Logo
5:00 am - 12:08 pm
RAP
-
PDX
8h 08m
2 stops
United Airlines Logo
12:50 pm - 7:13 pm
PDX
-
RAP
5h 23m
1 stop
$412United Airlines
Tue, Jun 2 - Sun, Jun 7

United Airlines flights from Rapid City to Portland

Our best United Airlines deals on Rapid City to Portland flight tickets
United Airlines
Apr 16
RAP5:27 amRapid City
5h 21m
1 stop
PDX9:48 amPortland
Apr 22
PDX4:15 pmPortland
5h 13m
1 stop
RAP10:28 pmRapid City
$299
United Airlines
Apr 18
RAP7:00 amRapid City
8h 31m
2 stops
PDX2:31 pmPortland
Apr 25
PDX12:50 pmPortland
7h 14m
1 stop
RAP9:04 pmRapid City
$304
United Airlines
Mar 24
RAP5:00 amRapid City
8h 33m
2 stops
PDX12:33 pmPortland
Apr 1
PDX4:15 pmPortland
5h 12m
1 stop
RAP10:27 pmRapid City
$319

American Airlines flights from Rapid City to Portland

Our best American Airlines deals on Rapid City to Portland flight tickets
American Airlines
Jun 2
RAP4:58 pmRapid City
8h 52m
1 stop
PDX12:50 amPortland
Jun 7
PDX5:20 amPortland
5h 51m
1 stop
RAP12:11 pmRapid City
$439
American Airlines
Apr 16
RAP11:53 amRapid City
12h 10m
2 stops
PDX11:03 pmPortland
Apr 22
PDX7:23 amPortland
13h 35m
2 stops
RAP9:58 pmRapid City
$972
American Airlines
Mar 13
RAP5:32 amRapid City
12h 36m
2 stops
PDX5:08 pmPortland
Mar 15
PDX8:30 amPortland
13h 06m
2 stops
RAP10:36 pmRapid City
$1,308

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to Portland 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 March 7, 2026.
Use the filters below to find and compare flights from Rapid City to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 4/16

5:27 am-9:48 am

1 stop5h 21m

Portland

Wed 4/22

4:15 pm-10:28 pm

1 stop5h 13m

$299

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 4/18

7:00 am-2:31 pm

2 stops8h 31m

Portland

Sat 4/25

12:50 pm-9:04 pm

1 stop7h 14m

$304

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 3/24

5:00 am-12:33 pm

2 stops8h 33m

Portland

Wed 4/1

4:15 pm-10:27 pm

1 stop5h 12m

$319

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 3/25

5:00 am-12:33 pm

2 stops8h 33m

Portland

Wed 4/1

4:15 pm-10:27 pm

1 stop5h 12m

$350

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 3/24

2:45 pm-9:10 pm

1 stop7h 25m

Portland

Wed 4/1

5:00 am-11:24 am

1 stop5h 24m

$353

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 5/12

5:20 am-9:38 am

1 stop5h 18m

Portland

Sun 5/17

5:00 am-1:09 pm

1 stop7h 09m

$363

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 4/23

4:15 pm-10:54 pm

1 stop7h 39m

Portland

Tue 4/28

4:15 pm-10:20 pm

1 stop5h 05m

$369

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 6/2

5:00 am-9:47 am

1 stop5h 47m

Portland

Sun 6/7

12:50 pm-7:13 pm

1 stop5h 23m

$406

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 7/18

5:00 am-9:47 am

1 stop5h 47m

Portland

Wed 7/22

4:15 pm-10:25 pm

1 stop5h 10m

$409

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 6/2

5:00 am-12:08 pm

2 stops8h 08m

Portland

Sun 6/7

12:50 pm-7:13 pm

1 stop5h 23m

$412

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 Portland from

How to get the cheapest flight ticket from Rapid City to Portland

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 Portland?

The cheapest month to fly to Portland from Rapid City is in July. Flight prices, which tend to average around $286, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in July, then you should wait until May to fly from Rapid City, when ticket prices are also cheap, with an average price of $315.

When to book flights from Rapid City to Portland

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

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

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

Fastest flight time

5h 21m

Direct flights

None
The fastest flight from Rapid City to Portland takes 5h 21m
There are no direct flights from Rapid City to Portland. There are no popular flight routes from Rapid City to Portland.
Search flight deals

  • How far is Rapid City to Portland by plane?

    The distance between Rapid City and Portland is about 955.5 mi. 5h 21m is a normal flight duration for this route.

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

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

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

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

    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 Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The required travel and health documents for your Portland 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 Portland 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 Rapid City to Portland?

Best airlines flying from Rapid City to Portland

Compare and see reviews for airlines that fly from Rapid City to Portland with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.9
8,271 reviews
Search Delta flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,404 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Rockaway Beach
Depoe Bay
Beaverton
Hillsboro
Hood River
Tigard
Longview
McMinnville
The Dalles
Pacific City
Gresham
Newberg
Manzanita

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Portland 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 Portland?

Once all potential Rapid City to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Rapid City to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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