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Rapid City

$143+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RAP
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Rapid City are usually found in April or October, booked 61 days in advance, depart on a Thursday or Saturday and return on a Thursday

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 June 18, 2025.

Round-trip from

$259
(United Airlines)

One-way from

$143
(Booking.com)

Popular in

July

Cheapest in

April

Average price

$432
From Portland to Rapid City
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One-way flight from Portland to Rapid City
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Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This United Airlines deal was found by Cheapflights users on 6/17. 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 9/175:00 amPDX - RAP
1 stop5h 32mUnited Airlines
Sun 9/215:30 amRAP - PDX
1 stop4h 58mUnited Airlines
Deal found 6/17$259
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:03 pmPDX - RAP
1 stop8h 07mMultiple Airlines
Sun 8/1710:00 pmRAP - PDX
1 stop14h 08mMultiple Airlines
Deal found 6/16$263
This Delta deal was found by Cheapflights users on 6/18. 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.
Sat 8/306:20 amPDX - RAP
1 stop8h 25mDelta
Wed 9/36:25 amRAP - PDX
2 stops10h 45mDelta
Deal found 6/18$264
This Sun Country Air deal was found by Cheapflights users on 6/18. 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 7/1011:59 pmPDX - RAP
1 stop15h 10mSun Country Air
Mon 7/145:27 pmRAP - PDX
1 stop6h 19mSun Country Air
Deal found 6/18$325
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 7/1412:59 amPDX - RAP
1 stop7h 56mAmerican Airlines
Tue 7/224:38 pmRAP - PDX
1 stop8h 49mAmerican Airlines
Deal found 6/17$361
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/273:34 pmPDX - RAP
2 stops22h 06mAllegiant Air
Sun 6/2910:02 pmRAP - PDX
2 stops20h 05mAllegiant Air
Deal found 6/17$516

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 June 18, 2025.
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

Wed 9/17

5:00 am-11:32 am

1 stop5h 32m

Rapid City

Sun 9/21

5:30 am-9:28 am

1 stop4h 58m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 8/14

12:03 pm-9:10 pm

1 stop8h 07m

Rapid City

Sun 8/17

10:00 pm-11:08 am

1 stop14h 08m

$263

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/30

6:20 am-3:45 pm

1 stop8h 25m

Rapid City

Wed 9/3

6:25 am-4:10 pm

2 stops10h 45m

$264

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 7/10

11:59 pm-4:09 pm

1 stop15h 10m

Rapid City

Mon 7/14

5:27 pm-10:46 pm

1 stop6h 19m

$325

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Mon 7/14

12:59 am-9:55 am

1 stop7h 56m

Rapid City

Tue 7/22

4:38 pm-12:27 am

1 stop8h 49m

$361

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sun 8/10

11:59 pm-4:33 pm

1 stop15h 34m

$143

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 7/25

12:59 am-9:55 am

1 stop7h 56m

$197

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 7/19

9:47 am-8:45 pm

2 stops9h 58m

$202

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 7/11

6:31 pm-2:42 pm

2 stops19h 11m

$206

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 8/9

12:40 am-10:13 am

1 stop8h 33m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 11 results
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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

How far ahead should I book a flight from Portland to Rapid City?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Rapid City. Price data was last updated on June 13, 2025.

The price you pay for your flight from Portland to Rapid City may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Portland to Rapid City (average of $348). Flying from Portland to Rapid City in June is currently the most expensive (average of $506). 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 PDX to RAP?

Find hourly flight availability from Portland to Rapid City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 28% on flights from Portland to Rapid City by exploring options for tickets in the evening.

Rainfall in Rapid City by month

Plan your trip to Rapid City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rapid City ranges from 0.3 - 3.2 inches per month. May is typically the wettest month, when rainfall can reach 3.2 in. January is typically the driest time to visit Rapid City when rainfall is around 0.3 in.

Temperature in Rapid City by month

Plan your trip to Rapid City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rapid City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 June 18, 2025.
Read through reviews of airlines operating flights from Portland to Rapid City, such as Delta, United Airlines and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
Allegiant Air
7.3
Good
722 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
Sun Country Air
6.9
Okay
345 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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 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.

  • 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 $259. Other airlines that can offer you cheap pricing are Delta, from $264, and Sun Country Air, from $325. United Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland to Rapid City one-way?

    The cheapest airlines for a one-way flight from Portland to Rapid City are Sun Country Air ($143), American Airlines ($197), and United Airlines ($202).

  • 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, January is the cheapest month in which you can book a flight from Portland to Rapid City (average of $348). Flying from Portland to Rapid City in June is currently the most expensive (average of $506). 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
Deadwood
Keystone
Sturgis
Spearfish

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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$303Average$417FlexibilityNo cancel feeOn-time69%

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