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Cheap flights from Rapid City to Portland from $191

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 7/15. 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

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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
5:53 pm - 10:55 pm
RAP
-
PDX
6h 02m
1 stop
United Airlines Logo
5:00 am - 12:29 pm
PDX
-
RAP
6h 29m
1 stop
$315United Airlines
Fri, Jun 5 - Tue, Jun 9
United Airlines Logo
5:20 am - 9:42 am
RAP
-
PDX
5h 22m
1 stop
United Airlines Logo
5:05 am - 1:13 pm
PDX
-
RAP
7h 08m
1 stop
$319United Airlines
Sun, Mar 1 - Sun, Mar 8
American Airlines Logo
4:57 pm - 11:54 pm
RAP
-
PDX
7h 57m
1 stop
American Airlines Logo
11:47 pm - 11:23 am
PDX
-
RAP
10h 36m
1 stop
$324American Airlines
Fri, Apr 10 - Mon, Apr 13
United Airlines Logo
5:00 am - 9:47 am
RAP
-
PDX
5h 47m
1 stop
United Airlines Logo
5:00 am - 12:29 pm
PDX
-
RAP
6h 29m
1 stop
$347United Airlines
Thu, Jun 4 - Tue, Jun 9
Delta Logo
2:36 pm - 8:11 pm
RAP
-
PDX
6h 35m
1 stop
Delta Logo
3:00 pm - 10:24 pm
PDX
-
RAP
6h 24m
1 stop
$354Delta
Fri, May 29 - Fri, Jun 5
Delta Logo
2:36 pm - 11:40 pm
RAP
-
PDX
10h 04m
2 stops
Delta Logo
3:00 pm - 10:24 pm
PDX
-
RAP
6h 24m
1 stop
$359Delta
Fri, May 29 - Fri, Jun 5
United Airlines Logo
5:53 pm - 10:55 pm
RAP
-
PDX
6h 02m
1 stop
United Airlines Logo
5:00 am - 12:35 pm
PDX
-
RAP
6h 35m
1 stop
$363United Airlines
Tue, Jul 14 - Mon, Jul 20
United Airlines Logo
5:20 am - 9:42 am
RAP
-
PDX
5h 22m
1 stop
United Airlines Logo
5:05 am - 11:05 am
PDX
-
RAP
5h 00m
1 stop
$366United Airlines
Sun, Mar 1 - Sun, Mar 8
American Airlines Logo
4:58 pm - 12:48 am
RAP
-
PDX
8h 50m
1 stop
American Airlines Logo
5:19 am - 11:53 am
PDX
-
RAP
5h 34m
1 stop
$374American Airlines
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
4:16 pm - 11:47 pm
RAP
-
PDX
8h 31m
1 stop
American Airlines Logo
5:19 am - 11:53 am
PDX
-
RAP
5h 34m
1 stop
$404American Airlines
Thu, Jul 16 - Tue, Jul 21

Delta flights from Rapid City to Portland

Our best Delta deals on Rapid City to Portland flight tickets
Delta
May 29
RAP2:36 pmRapid City
6h 35m
1 stop
PDX8:11 pmPortland
Jun 5
PDX3:00 pmPortland
6h 24m
1 stop
RAP10:24 pmRapid City
$354
Delta
May 24
RAP6:40 amRapid City
6h 45m
1 stop
PDX12:25 pmPortland
May 25
PDX3:00 pmPortland
6h 24m
1 stop
RAP10:24 pmRapid City
$371
Delta
May 18
RAP2:36 pmRapid City
6h 35m
1 stop
PDX8:11 pmPortland
May 25
PDX3:00 pmPortland
6h 24m
1 stop
RAP10:24 pmRapid City
$395

United Airlines flights from Rapid City to Portland

Our best United Airlines deals on Rapid City to Portland flight tickets
United Airlines
Jun 5
RAP5:53 pmRapid City
6h 02m
1 stop
PDX10:55 pmPortland
Jun 9
PDX5:00 amPortland
6h 29m
1 stop
RAP12:29 pmRapid City
$315
United Airlines
Mar 1
RAP5:20 amRapid City
5h 22m
1 stop
PDX9:42 amPortland
Mar 8
PDX5:05 amPortland
7h 08m
1 stop
RAP1:13 pmRapid City
$319
United Airlines
Jun 4
RAP5:00 amRapid City
5h 47m
1 stop
PDX9:47 amPortland
Jun 9
PDX5:00 amPortland
6h 29m
1 stop
RAP12:29 pmRapid City
$347

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 February 17, 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

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 6/5

5:53 pm-10:55 pm

1 stop6h 02m

Portland

Tue 6/9

5:00 am-12:29 pm

1 stop6h 29m

$315

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 3/1

5:20 am-9:42 am

1 stop5h 22m

Portland

Sun 3/8

5:05 am-1:13 pm

1 stop7h 08m

$319

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 4/10

4:57 pm-11:54 pm

1 stop7h 57m

Portland

Mon 4/13

11:47 pm-11:23 am

1 stop10h 36m

$324

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 6/4

5:00 am-9:47 am

1 stop5h 47m

Portland

Tue 6/9

5:00 am-12:29 pm

1 stop6h 29m

$347

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 5/29

2:36 pm-8:11 pm

1 stop6h 35m

Portland

Fri 6/5

3:00 pm-10:24 pm

1 stop6h 24m

$354

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 5/29

2:36 pm-11:40 pm

2 stops10h 04m

Portland

Fri 6/5

3:00 pm-10:24 pm

1 stop6h 24m

$359

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 7/14

5:53 pm-10:55 pm

1 stop6h 02m

Portland

Mon 7/20

5:00 am-12:35 pm

1 stop6h 35m

$363

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 3/1

5:20 am-9:42 am

1 stop5h 22m

Portland

Sun 3/8

5:05 am-11:05 am

1 stop5h 00m

$366

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 7/14

4:58 pm-12:48 am

1 stop8h 50m

Portland

Tue 7/21

5:19 am-11:53 am

1 stop5h 34m

$374

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 7/16

4:16 pm-11:47 pm

1 stop8h 31m

Portland

Tue 7/21

5:19 am-11:53 am

1 stop5h 34m

$404

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 typical price of a round-trip flight between Rapid City and Portland?

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

6h 02m

Direct flights

None
The fastest flight from Rapid City to Portland takes 6h 02m
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. 6h 02m 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
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,308 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
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
Tigard
Longview
McMinnville
Gresham
Pacific City
The Dalles
Manzanita
Newberg

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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