$309+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RAP
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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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
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Best
Last-minute
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Cheapest flights from Portland to Rapid CityExplore 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 9, 2026.
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 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/1412:45 pm -
1 stop7h 07m
Wed 10/215:00 am -
1 stop5h 28m
Deal found 9/4![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/301:15 pm -
1 stop5h 04m
Mon 11/25:00 am -
1 stop5h 36m
Deal found 9/8![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/7. 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 10/73:22 pm -
1 stop6h 08m
Wed 10/144:38 pm -
1 stop8h 06m
Deal found 9/7![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/112:45 pm -
1 stop7h 07m
Tue 10/65:00 am -
1 stop5h 36m
Deal found 9/8![United Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 9/8. 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 9/243:00 pm -
1 stop6h 18m
Thu 10/14:31 pm -
1 stop7h 39m
Deal found 9/8![Delta logo]()
$374
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/611:49 pm -
1 stop9h 05m
Tue 10/135:04 pm -
1 stop7h 35m
Deal found 9/4![American Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/1511:49 pm -
1 stop9h 05m
Wed 10/2810:24 am -
1 stop7h 39m
Deal found 9/4![American Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/154:07 pm -
1 stop5h 23m
Wed 10/287:00 am -
2 stops8h 37m
Deal found 9/4![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/255:00 am -
1 stop5h 55m
Tue 9/294:41 pm -
1 stop5h 29m
Deal found 9/4![United Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 9/4. 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 10/141:44 pm -
1 stop7h 46m
Wed 10/212:37 pm -
2 stops10h 22m
Deal found 9/4![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:00 am -
1 stop5h 55m
Wed 9/235:48 pm -
1 stop6h 05m
Deal found 9/4![United Airlines logo]()
$428
Best flights from Portland to Rapid CityDiscover carefully curated flight deals from Portland to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Portland to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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 10/301:44 pm -
1 stop7h 46m
Mon 11/24:38 pm -
1 stop8h 06m
Deal found 9/8![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:00 am -
1 stop5h 55m
Wed 9/235:48 pm -
1 stop6h 05m
Deal found 9/4![United Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 9/8. 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 9/243:00 pm -
1 stop6h 18m
Thu 10/14:31 pm -
1 stop7h 39m
Deal found 9/8![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/255:00 am -
1 stop6h 26m
Tue 9/295:00 am -
2 stops8h 05m
Deal found 9/4![United Airlines logo]()
$453
This Delta deal was found by Cheapflights users on 9/4. 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 10/141:44 pm -
1 stop7h 46m
Wed 10/212:37 pm -
2 stops10h 22m
Deal found 9/4![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/305:00 am -
1 stop5h 55m
Wed 10/75:00 am -
1 stop5h 28m
Deal found 9/9![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 9/6. 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 11/2312:35 am -
1 stop8h 48m
Sat 12/56:42 am -
1 stop6h 46m
Deal found 9/6![Delta logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/2212:45 pm -
1 stop7h 07m
Fri 10/3010:30 am -
2 stops13h 16m
Deal found 9/6![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/235:00 am -
1 stop6h 24m
Wed 10/75:00 am -
1 stop5h 28m
Deal found 9/8![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/69:00 am -
2 stops10h 43m
Sun 11/85:00 am -
2 stops10h 37m
Deal found 9/6![United Airlines logo]()
$513
Last-minute flights from Portland to Rapid CityDiscover last-minute flight deals from Portland to Rapid City. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Rapid City. Data last updated September 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:00 am -
1 stop5h 55m
Wed 9/235:48 pm -
1 stop6h 05m
Deal found 9/4![United Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 9/8. 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 9/243:00 pm -
1 stop6h 18m
Thu 10/14:31 pm -
1 stop7h 39m
Deal found 9/8![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/255:00 am -
1 stop5h 55m
Tue 9/294:41 pm -
1 stop5h 29m
Deal found 9/4![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/112:45 pm -
1 stop7h 07m
Tue 10/65:00 am -
1 stop5h 36m
Deal found 9/8![United Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/611:49 pm -
1 stop9h 05m
Tue 10/135:04 pm -
1 stop7h 35m
Deal found 9/4![American Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 9/7. 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 10/73:22 pm -
1 stop6h 08m
Wed 10/144:38 pm -
1 stop8h 06m
Deal found 9/7![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/1412:45 pm -
1 stop7h 07m
Wed 10/215:00 am -
1 stop5h 28m
Deal found 9/4![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/4. 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 10/141:44 pm -
1 stop7h 46m
Wed 10/212:37 pm -
2 stops10h 22m
Deal found 9/4![Delta logo]()
$427
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/1511:49 pm -
1 stop9h 05m
Wed 10/2810:24 am -
1 stop7h 39m
Deal found 9/4![American Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/154:07 pm -
1 stop5h 23m
Wed 10/287:00 am -
2 stops8h 37m
Deal found 9/4![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/301:15 pm -
1 stop5h 04m
Mon 11/25:00 am -
1 stop5h 36m
Deal found 9/8![United Airlines logo]()
$349
One-way flights from Portland to Rapid CitySearch for one-way flight options from Portland to Rapid City. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Portland to Rapid City. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/1211:49 pm -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Mon 10/129:25 am -
2 stops48h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Allegiant Air logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Mon 9/1410:20 am -
2 stops48h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Allegiant Air logo]()
$376
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/256:00 am -
1 stop9h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/255:00 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Mon 10/1212:25 pm -
3 stops45h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 9/1312:25 am -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$413
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/127:02 am -
2 stops25h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 9/7. 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 9/258:44 pm -
2 stops12h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$455
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (United Airlines) |
One-way from | $309 (American Airlines) |
Popular in | March |
Cheapest in | April |
Average price | $500 |
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 7,457,451 searches. Data last updated September 9, 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
Cheapest round-trip
Quickest round-trip
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Fri 9/25
5:00 am-11:55 am
1 stop5h 55m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$309
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Mon 10/12
11:49 pm-9:54 am
1 stop9h 05m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$309
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Fri 10/30
1:44 pm-10:30 pm
1 stop7h 46m
Rapid City
Mon 11/2
4:38 pm-11:44 pm
1 stop8h 06m
$349
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Thu 9/24
3:00 pm-10:18 pm
1 stop6h 18m
Rapid City
Thu 10/1
4:31 pm-11:10 pm
1 stop7h 39m
$374
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Mon 9/14
10:20 am-12:15 pm
2 stops48h 55m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$376
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Mon 10/12
12:25 pm-10:34 am
3 stops45h 09m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$403
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Wed 10/14
1:44 pm-10:30 pm
1 stop7h 46m
Rapid City
Wed 10/21
2:37 pm-11:59 pm
2 stops10h 22m
$427
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Sat 9/19
5:00 am-11:55 am
1 stop5h 55m
Rapid City
Wed 9/23
5:48 pm-10:53 pm
1 stop6h 05m
$428
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Mon 10/12
7:02 am-9:28 am
2 stops25h 26m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$444
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Fri 9/25
5:00 am-12:26 pm
1 stop6h 26m
Rapid City
Tue 9/29
5:00 am-12:05 pm
2 stops8h 05m
$453
Showing 1-10 of 16 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
PDX-RAP
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 below average for this route at the moment.
Portland to Rapid City flights typically cost between $423 and $514 in October.The cheapest round-trip price found within the last 5 days was $329 on United Airlines (Oct 14-Oct 21).
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 9, 2026.
Read reviews from past customers who have flown United Airlines and American 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.
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near Rapid City?
Book flights to Rapid City if you plan to visit one of these locationsDeadwood
Keystone
Spearfish
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Alternative routes for Portland to Rapid City
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Portland and Rapid City flights
Browse other Portland and Rapid City flight options. Last updated on September 9, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
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Other flights to Rapid City
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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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$464 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$318 | Average$429 | FlexibilityNo cancel fee | On-time71% |