HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$223+ Cheap flights from Portland to Rapid City (PDX - RAP)

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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RAP
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Rapid City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Rapid City (RAP). 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 January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(United Airlines)

One-way from

$223
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$348
Provider with most accurate pricing for Portland-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Rapid City flights.
Search Deals
From Portland to Rapid City
Search Deals
One-way flight from Portland to Rapid City
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Portland to Rapid City

Cheapest flights from Portland to Rapid City
Explore the most affordable flight options available from Portland to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 12, 2026.

This United Airlines deal was found by Cheapflights users on 1/11. 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.
Sat 4/115:00 amPDX - RAP
1 stop5h 24mUnited Airlines
Sat 4/255:00 amRAP - PDX
1 stop5h 48mUnited Airlines
Deal found 1/11$279
This Delta deal was found by Cheapflights users on 1/11. 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 2/101:30 pmPDX - RAP
2 stops7h 58mDelta
Tue 2/176:00 amRAP - PDX
1 stop7h 44mDelta
Deal found 1/11$284
This Sun Country Air deal was found by Cheapflights users on 1/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:59 pmPDX - RAP
1 stop13h 23mSun Country Air
Mon 7/276:33 pmRAP - PDX
1 stop23h 16mSun Country Air
Deal found 1/11$286
This Delta deal was found by Cheapflights users on 1/12. 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 3/31:27 pmPDX - RAP
2 stops8h 00mDelta
Mon 3/94:01 pmRAP - PDX
2 stops8h 53mDelta
Deal found 1/12$310
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Sat 4/111:55 pmPDX - RAP
1 stop7h 03mAmerican Airlines
Sat 4/251:08 pmRAP - PDX
1 stop9h 30mAmerican Airlines
Deal found 1/11$340
This American Airlines deal was found by Cheapflights users on 1/10. 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 4/77:00 amPDX - RAP
1 stop8h 23mAmerican Airlines
Thu 4/94:54 pmRAP - PDX
1 stop7h 48mAmerican Airlines
Deal found 1/10$351
This United Airlines deal was found by Cheapflights users on 1/11. 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 3/135:05 amPDX - RAP
1 stop7h 08mUnited Airlines
Sat 3/147:00 amRAP - PDX
1 stop7h 44mUnited Airlines
Deal found 1/11$372
This United Airlines deal was found by Cheapflights users on 1/10. 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 4/85:00 amPDX - RAP
1 stop7h 08mUnited Airlines
Sat 4/115:00 amRAP - PDX
1 stop5h 48mUnited Airlines
Deal found 1/10$390
This Delta deal was found by Cheapflights users on 1/10. 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.
Fri 4/1012:30 amPDX - RAP
1 stop8h 49mDelta
Fri 4/244:00 pmRAP - PDX
2 stops8h 53mDelta
Deal found 1/10$394
This United Airlines deal was found by Cheapflights users on 1/10. 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.
Thu 4/95:00 amPDX - RAP
1 stop5h 24mUnited Airlines
Fri 4/102:42 pmRAP - PDX
1 stop7h 32mUnited Airlines
Deal found 1/10$396
This Delta deal was found by Cheapflights users on 1/12. 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.
Mon 4/612:30 amPDX - RAP
1 stop8h 50mDelta
Mon 4/134:00 pmRAP - PDX
2 stops8h 53mDelta
Deal found 1/12$404

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Rapid City 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 January 12, 2026.
Use the filters below to find and compare flights from Portland to Rapid City that are best for you.

Fly from

Portland

Fly to

Rapid City

Route

Depart

Return

Price

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 2/20

12:40 am-10:05 am

1 stop8h 25m

Rapid City

Sat 2/28

6:00 am-12:44 pm

1 stop7h 44m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 2/20

1:18 pm-8:44 pm

1 stop6h 26m

Rapid City

Sat 2/28

2:52 pm-9:15 pm

1 stop7h 23m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 3/3

4:00 pm-10:16 pm

1 stop5h 16m

Rapid City

Mon 3/9

5:00 am-9:54 am

1 stop5h 54m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 2/10

5:00 am-11:25 am

1 stop5h 25m

Rapid City

Tue 2/17

5:20 am-9:42 am

1 stop5h 22m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 4/11

5:00 am-1:08 pm

1 stop7h 08m

Rapid City

Fri 4/24

4:15 pm-10:54 pm

1 stop7h 39m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 4/11

5:00 am-11:24 am

1 stop5h 24m

Rapid City

Sat 4/25

5:00 am-9:48 am

1 stop5h 48m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 2/20

11:35 am-10:27 pm

2 stops9h 52m

Rapid City

Sat 2/28

6:00 am-12:44 pm

1 stop7h 44m

$284

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 4/11

1:55 pm-9:58 pm

1 stop7h 03m

Rapid City

Sat 4/25

1:08 pm-9:38 pm

1 stop9h 30m

$340

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 6/14

7:17 pm-3:28 pm

1 stop19h 11m

$223

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Mon 6/29

11:59 pm-9:49 am

1 stop8h 50m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 13 results
1
2

Compare providers for flights from Portland to Rapid City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Rapid City in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Rapid City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Rapid City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Rapid City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Portland 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 Portland to Rapid City

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

Currently, February is the cheapest month in which you can book a flight from Portland to Rapid City (average of $258). Flying from Portland to Rapid City in March is currently the most expensive (average of $383). 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.

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

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated January 12, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Portland to Rapid City. 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
7.9
Good
8,033 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,033 reviews
Delta
7.9
Good
8,033 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,143 reviews
Delta
7.9
Good
8,033 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Portland to Rapid City?

    Airlines like Delta and United Airlines fly from Portland to Rapid City in about 6h 26m. The time it takes to get you to your destination can typically vary by up to 1h 59m. The distance between Portland and Rapid City is about 960 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Portland to Rapid City round-trip from $258. Another airline that can offer you cheap pricing is United Airlines. Delta is 35% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Rapid City 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 Portland to Rapid City?

    Currently, February is the cheapest month in which you can book a flight from Portland to Rapid City (average of $258). Flying from Portland to Rapid City in March is currently the most expensive (average of $383). 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 Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Sturgis
Spearfish

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Portland to Rapid City

Discover the top 2 airlines that operate flights from Portland to Rapid City. 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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$468FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$289Average$425FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.