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Rapid City

$259+ Cheap flights from Portland to Rapid City (PDX - RAP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RAP
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$259
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$398
From Portland to Rapid City
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Highest demand for flights based on searches. 12% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:20 amPDX - RAP
1 stop6h 25mDelta
Wed 10/296:05 amRAP - PDX
1 stop5h 56mDelta
Deal found 9/16$259
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:53 pmPDX - RAP
1 stop4h 47mUnited Airlines
Wed 10/298:45 amRAP - PDX
2 stops10h 51mUnited Airlines
Deal found 9/16$264
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/165:00 amPDX - RAP
1 stop6h 37mUnited Airlines
Mon 10/205:30 amRAP - PDX
1 stop4h 59mUnited Airlines
Deal found 9/14$281
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/305:00 amPDX - RAP
1 stop4h 57mUnited Airlines
Sat 10/49:00 amRAP - PDX
1 stop7h 05mUnited Airlines
Deal found 9/15$289
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 amPDX - RAP
1 stop4h 57mUnited Airlines
Wed 10/224:35 pmRAP - PDX
2 stops8h 53mUnited Airlines
Deal found 9/15$314
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:30 amPDX - RAP
3 stops14h 04mUnited Airlines
Tue 10/147:00 amRAP - PDX
1 stop7h 03mUnited Airlines
Deal found 9/13$339
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 10/2912:40 amPDX - RAP
1 stop8h 13mDelta
Sun 11/25:05 amRAP - PDX
1 stop7h 45mDelta
Deal found 9/15$358

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 September 16, 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

Fri 10/24

12:40 am-9:53 am

1 stop8h 13m

Rapid City

Wed 10/29

6:05 am-12:50 pm

1 stop7h 45m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 10/25

10:50 am-5:00 pm

1 stop5h 10m

Rapid City

Wed 10/29

5:15 am-9:38 am

1 stop5h 23m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 10/8

5:00 am-10:57 am

1 stop4h 57m

Rapid City

Tue 10/14

7:00 am-1:03 pm

1 stop7h 03m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 10/15

5:00 am-12:37 pm

1 stop6h 37m

Rapid City

Wed 10/22

5:50 pm-10:45 pm

1 stop5h 55m

$259

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 10/16

5:00 am-12:37 pm

1 stop6h 37m

Rapid City

Mon 10/20

5:30 am-9:29 am

1 stop4h 59m

$281

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 9/30

5:00 am-10:57 am

1 stop4h 57m

Rapid City

Sat 10/4

9:00 am-3:05 pm

1 stop7h 05m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, 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 $502). 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 September 16, 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.

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 September 16, 2025.
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
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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 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 5h 10m. The time it takes to get you to your destination can typically vary by up to 3h 03m. 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 37% 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, 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 $502). 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
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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$373FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$418FlexibilityNo cancel feeOn-time69%

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