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$181+ Cheap flights from Rapid City to Portland (RAP - PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — PDX
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Rapid City to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$289
(United Airlines)

One-way from

$181
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$462
From Rapid City to Portland
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One-way flight from Rapid City to Portland
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Rapid City to Portland

Cheapest flights from Rapid City to Portland
Explore the most affordable flight options available from Rapid City to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:18 amRAP - PDX
1 stop4h 47mUnited Airlines
Sun 8/315:00 amPDX - RAP
1 stop5h 32mUnited Airlines
Deal found 8/12$289
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:57 pmRAP - PDX
1 stop7h 32mAmerican Airlines
Wed 10/295:29 amPDX - RAP
1 stop9h 34mAmerican Airlines
Deal found 8/13$304
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:39 pmRAP - PDX
1 stop18h 32mMultiple Airlines
Fri 10/37:04 pmPDX - RAP
2 stops24h 04mMultiple Airlines
Deal found 8/13$323
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:35 pmRAP - PDX
1 stop7h 10mUnited Airlines
Sat 10/44:07 pmPDX - RAP
1 stop5h 05mUnited Airlines
Deal found 8/12$374
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:26 pmRAP - PDX
1 stop7h 00mDelta
Mon 10/207:59 pmPDX - RAP
2 stops12h 54mDelta
Deal found 8/12$388
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:03 amRAP - PDX
2 stops47h 45mMultiple Airlines
Wed 10/298:36 pmPDX - RAP
1 stop23h 18mMultiple Airlines
Deal found 8/13$413
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:59 pmRAP - PDX
1 stop7h 30mAmerican Airlines
Mon 10/201:51 pmPDX - RAP
1 stop6h 59mAmerican Airlines
Deal found 8/12$419
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:43 pmRAP - PDX
1 stop5h 38mUnited Airlines
Tue 9/24:07 pmPDX - RAP
1 stop4h 52mUnited Airlines
Deal found 8/14$438

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Rapid City to Portland that are best for you.

Fly from

Rapid City

Fly to

Portland

Route

Depart

Return

Price

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Wed 8/27

11:18 am-3:05 pm

1 stop4h 47m

Portland

Sun 8/31

5:00 am-11:32 am

1 stop5h 32m

$289

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 10/24

4:57 pm-11:29 pm

1 stop7h 32m

Portland

Wed 10/29

5:29 am-4:03 pm

1 stop9h 34m

$304

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 9/28

5:39 pm-11:11 am

1 stop18h 32m

Portland

Fri 10/3

7:04 pm-8:08 pm

2 stops24h 04m

$323

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Mon 9/29

4:35 pm-10:45 pm

1 stop7h 10m

Portland

Sat 10/4

4:07 pm-10:12 pm

1 stop5h 05m

$374

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 10/14

2:26 pm-8:26 pm

1 stop7h 00m

Portland

Mon 10/20

7:59 pm-9:53 am

2 stops12h 54m

$388

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 10/24

10:03 am-8:48 am

2 stops47h 45m

Portland

Wed 10/29

8:36 pm-8:54 pm

1 stop23h 18m

$413

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 10/14

4:59 pm-11:29 pm

1 stop7h 30m

Portland

Mon 10/20

1:51 pm-9:50 pm

1 stop6h 59m

$419

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 9/9

4:47 pm-9:01 pm

1 stop5h 14m

$181

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 11/21

6:00 pm-10:56 pm

1 stop5h 56m

$181

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 11/22

5:15 am-9:38 am

1 stop5h 23m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Best time to book a flight from Rapid City to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Rapid City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Portland

What is the cheapest month to book a flight from Rapid City to Portland?

Currently, November is the cheapest month in which you can book a flight from Rapid City to Portland (average of $277). Flying from Rapid City to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RAP to PDX?

Find hourly flight availability from Rapid City to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Rapid City to Portland in the morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Rapid City to Portland?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Rapid City to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Rapid City to Portland round-trip?

    Currently priced at $258, Delta will fly you from Rapid City to Portland and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $283. Users have found that Delta is 36% cheaper than the other options available to this destination.

  • Can I find deals for flights from Rapid City to Portland that include hotel bookings?

    Yes. In addition to deals on Rapid City to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Portland.

  • Can I find deals for business class flights from Rapid City to Portland?

    Yes. Cheapflights offers flight deals from Rapid City to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rapid City to Portland?

    Currently, November is the cheapest month in which you can book a flight from Rapid City to Portland (average of $277). Flying from Rapid City to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Lincoln City
Cannon Beach
Long Beach
Longview
Tigard
Depoe Bay
Stevenson
Woodburn
Wilsonville
Pacific City
Troutdale
Tillamook
Gresham

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Rapid City to Portland

Discover the top 2 airlines that operate flights from Rapid City to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$419FlexibilityNo cancel feeOn-time69%

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