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Rapid City

$309+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RAP
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap 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 August 3, 2026.

This Delta deal was found by Cheapflights users on 7/31. 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 10/306:00 am
PDX
-
RAP
1 stop6h 57m
Delta
Sun 11/14:38 pm
RAP
-
PDX
1 stop8h 06m
Delta
Deal found 7/31$329
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/17:00 am
PDX
-
RAP
2 stops9h 58m
United Airlines
Tue 9/85:00 am
RAP
-
PDX
1 stop5h 32m
United Airlines
Deal found 8/1$334
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/281:15 pm
PDX
-
RAP
1 stop6h 28m
United Airlines
Mon 11/25:00 am
RAP
-
PDX
1 stop5h 36m
United Airlines
Deal found 7/29$349
This American Airlines deal was found by Cheapflights users on 8/1. 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 9/15:15 am
PDX
-
RAP
1 stop5h 53m
American Airlines
Fri 9/114:56 pm
RAP
-
PDX
1 stop7h 27m
American Airlines
Deal found 8/1$350
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/125:15 am
PDX
-
RAP
1 stop5h 53m
American Airlines
Wed 8/2611:45 am
RAP
-
PDX
1 stop6h 06m
American Airlines
Deal found 7/29$354
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/95:00 am
PDX
-
RAP
1 stop6h 24m
United Airlines
Wed 9/165:48 pm
RAP
-
PDX
1 stop6h 05m
United Airlines
Deal found 7/30$359
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/19:00 am
PDX
-
RAP
2 stops7h 58m
United Airlines
Fri 9/1112:30 pm
RAP
-
PDX
1 stop6h 19m
United Airlines
Deal found 8/1$371
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/124:07 pm
PDX
-
RAP
1 stop5h 21m
United Airlines
Wed 8/265:00 am
RAP
-
PDX
2 stops8h 00m
United Airlines
Deal found 7/29$379
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/1511:15 am
PDX
-
RAP
2 stops10h 13m
United Airlines
Wed 8/1911:22 am
RAP
-
PDX
1 stop4h 43m
United Airlines
Deal found 7/30$384
This Delta deal was found by Cheapflights users on 8/1. 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.
Thu 9/173:00 pm
PDX
-
RAP
1 stop6h 18m
Delta
Tue 9/226:48 am
RAP
-
PDX
1 stop6h 49m
Delta
Deal found 8/1$390
This Delta deal was found by Cheapflights users on 8/1. 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.
Thu 9/173:00 pm
PDX
-
RAP
1 stop6h 18m
Delta
Fri 9/252:30 pm
RAP
-
PDX
1 stop6h 46m
Delta
Deal found 8/1$391
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/95:00 am
PDX
-
RAP
1 stop6h 26m
United Airlines
Wed 10/145:00 am
RAP
-
PDX
1 stop5h 28m
United Airlines
Deal found 7/31$394

Find 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 August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Delta)

One-way from

$309
(American Airlines)

Popular in

March

Cheapest in

April

Average price

$398
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. 5% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 3, 2026.
Use the filters below to find and compare flights from Portland to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 9/10

5:00 am-11:55 am

1 stop5h 55m

Rapid City

Thu 9/17

5:48 pm-10:53 pm

1 stop6h 05m

$329

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 10/28

1:15 pm-8:43 pm

1 stop6h 28m

Rapid City

Mon 11/2

5:00 am-9:36 am

1 stop5h 36m

$349

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/15

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Wed 8/19

4:41 pm-10:54 pm

1 stop7h 13m

$398

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 9/5

12:45 pm-8:37 pm

1 stop6h 52m

Rapid City

Tue 9/8

5:00 am-9:32 am

1 stop5h 32m

$409

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 9/1

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Sat 9/5

5:00 am-9:32 am

1 stop5h 32m

$409
Quickest round-trip

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 9/4

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Fri 9/11

4:41 pm-9:05 pm

1 stop5h 24m

$414

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 9/23

5:30 am-5:52 pm

2 stops11h 22m

Rapid City

Wed 10/7

5:00 am-9:28 am

1 stop5h 28m

$470
Cheapest one-way

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Mon 10/12

11:49 pm-9:54 am

1 stop9h 05m

$309
Quickest one-way

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 9/13

12:25 am-10:01 am

1 stop8h 36m

$340

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Mon 10/12

3:23 pm-10:15 am

2 stops17h 52m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Sorted by cheapest first

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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Rapid City flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, April is the cheapest month in which you can book a flight from Portland to Rapid City (average of $298). Flying from Portland to Rapid City in March is currently the most expensive (average of $756). 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?

Airfare is typical for this route at the moment.

Portland to Rapid City flights typically cost between $328 and $472 in October.
The cheapest round-trip price found within the last 5 days was $329 on Delta (Oct 30-Nov 1).

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 August 3, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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
7.8
Good
8,483 reviews

Boarding

8.1

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Boarding

8.1

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,058 reviews
Delta
7.8
Good
8,483 reviews

Boarding

8.1

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,842 reviews
Delta
7.8
Good
8,483 reviews

Boarding

8.1

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 United Airlines fly from Portland to Rapid City in about 5h 55m. The time it takes to get you to your destination can typically vary by up to . The distance between Portland and Rapid City is about 960 mi.

  • 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. Other airlines that can offer you cheap pricing are United Airlines, from $298, and American Airlines, from $318. Delta is 47% 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, April is the cheapest month in which you can book a flight from Portland to Rapid City (average of $298). Flying from Portland to Rapid City in March is currently the most expensive (average of $756). 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
Spearfish

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Alternative routes for Portland to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
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Yakima to Rapid City flights

Top 3 airlines flying from Portland to Rapid City

Discover the top 3 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 August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$544FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$464FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$318Average$458FlexibilityNo cancel feeOn-time71%

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