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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 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
5:00 am - 1:08 pm
PDX
-
RAP
7h 08m
1 stop
$334United Airlines
Wed, Apr 1 - Sun, Apr 5
United Airlines Logo
11:20 am - 5:44 pm
RAP
-
PDX
7h 24m
1 stop
United Airlines Logo
4:15 pm - 10:25 pm
PDX
-
RAP
5h 10m
1 stop
$339United Airlines
Thu, May 28 - Mon, Jun 1
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
$367United Airlines
Thu, May 21 - Mon, May 25
United Airlines Logo
5:20 am - 9:38 am
RAP
-
PDX
5h 18m
1 stop
United Airlines Logo
12:46 pm - 7:15 pm
PDX
-
RAP
5h 29m
1 stop
$389United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
5:35 pm - 10:54 pm
RAP
-
PDX
6h 19m
1 stop
United Airlines Logo
7:15 am - 7:15 pm
PDX
-
RAP
11h 00m
2 stops
$394United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
5:20 am - 12:35 pm
RAP
-
PDX
8h 15m
2 stops
United Airlines Logo
7:15 am - 7:15 pm
PDX
-
RAP
11h 00m
2 stops
$399United Airlines
Wed, May 6 - Sat, May 9
Delta Logo
11:03 am - 5:39 pm
RAP
-
PDX
7h 36m
1 stop
Delta Logo
12:30 am - 10:20 am
PDX
-
RAP
8h 50m
1 stop
$404Delta
Wed, Apr 1 - Sat, Apr 4
United Airlines Logo
5:20 am - 12:35 pm
RAP
-
PDX
8h 15m
2 stops
United Airlines Logo
5:30 am - 7:15 pm
PDX
-
RAP
12h 45m
3 stops
$405United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
2:35 pm - 9:09 pm
RAP
-
PDX
7h 34m
1 stop
United Airlines Logo
5:00 am - 1:09 pm
PDX
-
RAP
7h 09m
1 stop
$409United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
2:35 pm - 9:09 pm
RAP
-
PDX
7h 34m
1 stop
United Airlines Logo
7:15 am - 8:28 pm
PDX
-
RAP
12h 13m
2 stops
$414United Airlines
Wed, May 6 - Sat, May 9

United Airlines flights from Rapid City to Portland

Our best United Airlines deals on Rapid City to Portland flight tickets
United Airlines
Apr 1
RAP5:27 amRapid City
5h 21m
1 stop
PDX9:48 amPortland
Apr 5
PDX5:00 amPortland
7h 08m
1 stop
RAP1:08 pmRapid City
$334
United Airlines
May 28
RAP11:20 amRapid City
7h 24m
1 stop
PDX5:44 pmPortland
Jun 1
PDX4:15 pmPortland
5h 10m
1 stop
RAP10:25 pmRapid City
$339
United Airlines
May 21
RAP5:00 amRapid City
5h 47m
1 stop
PDX9:47 amPortland
May 25
PDX5:00 amPortland
6h 29m
1 stop
RAP12:29 pmRapid City
$367

Delta flights from Rapid City to Portland

Our best Delta deals on Rapid City to Portland flight tickets
Delta
Apr 1
RAP11:03 amRapid City
7h 36m
1 stop
PDX5:39 pmPortland
Apr 4
PDX12:30 amPortland
8h 50m
1 stop
RAP10:20 amRapid City
$404
Delta
Apr 1
RAP4:01 pmRapid City
8h 53m
2 stops
PDX11:54 pmPortland
Apr 4
PDX12:30 amPortland
8h 50m
1 stop
RAP10:20 amRapid City
$520
Delta
Mar 31
RAP6:00 amRapid City
11h 01m
2 stops
PDX4:01 pmPortland
Apr 3
PDX12:30 amPortland
8h 49m
1 stop
RAP10:19 amRapid City
$564

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 16, 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

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 4/1

5:27 am-9:48 am

1 stop5h 21m

Portland

Sun 4/5

5:00 am-1:08 pm

1 stop7h 08m

$334

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/28

11:20 am-5:44 pm

1 stop7h 24m

Portland

Mon 6/1

4:15 pm-10:25 pm

1 stop5h 10m

$339

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/21

5:00 am-9:47 am

1 stop5h 47m

Portland

Mon 5/25

5:00 am-12:29 pm

1 stop6h 29m

$367
Quickest round-trip

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

5:20 am-9:38 am

1 stop5h 18m

Portland

Sat 5/9

12:46 pm-7:15 pm

1 stop5h 29m

$389

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

5:35 pm-10:54 pm

1 stop6h 19m

Portland

Sat 5/9

7:15 am-7:15 pm

2 stops11h 00m

$394

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

5:20 am-12:35 pm

2 stops8h 15m

Portland

Sat 5/9

7:15 am-7:15 pm

2 stops11h 00m

$399

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 4/1

11:03 am-5:39 pm

1 stop7h 36m

Portland

Sat 4/4

12:30 am-10:20 am

1 stop8h 50m

$404

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

5:20 am-12:35 pm

2 stops8h 15m

Portland

Sat 5/9

5:30 am-7:15 pm

3 stops12h 45m

$405

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

2:35 pm-9:09 pm

1 stop7h 34m

Portland

Sat 5/9

5:00 am-1:09 pm

1 stop7h 09m

$409

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 5/6

2:35 pm-9:09 pm

1 stop7h 34m

Portland

Sat 5/9

7:15 am-8:28 pm

2 stops12h 13m

$414

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 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 January to fly from Rapid City, when ticket prices are also cheap, with an average price of $328.

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
8,296 reviews
Search Delta flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,428 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
Tigard
Hood River
Longview
McMinnville
Newberg
The Dalles
Pacific City
Gresham
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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