$278+ Cheap flights from Rapid City to Portland (RAP - PDX)
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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — PDX
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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Find cheap flights from Rapid City to Portland 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 Rapid City to Portland
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Best
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Cheapest flights from Rapid City to PortlandExplore the most affordable flight options available from Rapid City to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Rapid City to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:45 am -
1 stop6h 48m
Fri 11/276:00 am -
1 stop8h 54m
Deal found 10/17![Delta logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:02 am -
1 stop8h 32m
Tue 12/15:09 pm -
2 stops17h 08m
Deal found 10/14![Multiple Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:00 am -
2 stops8h 15m
Sat 12/121:17 pm -
2 stops8h 12m
Deal found 10/18![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 11/245:00 am -
1 stop5h 36m
Tue 12/15:00 am -
1 stop7h 03m
Deal found 10/14![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:36 pm -
1 stop8h 10m
Fri 11/276:00 am -
1 stop8h 54m
Deal found 10/17![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:00 am -
1 stop5h 37m
Tue 12/85:00 am -
1 stop5h 33m
Deal found 10/18![United Airlines logo]()
$449
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:02 am -
1 stop8h 32m
Mon 11/301:31 pm -
2 stops47h 27m
Deal found 10/14![Multiple Airlines logo]()
$463
Best flights from Rapid City to PortlandDiscover carefully curated flight deals from Rapid City to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Rapid City to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
Wed 1/611:21 am -
1 stop23h 11m
Thu 1/215:50 pm -
1 stop23h 44m
Deal found 10/19![Allegiant Air logo]()
$278
This United Airlines deal was found by Cheapflights users on 10/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:00 am -
1 stop5h 36m
Sat 12/125:00 am -
1 stop7h 03m
Deal found 10/18![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 11/245:00 am -
1 stop5h 36m
Tue 12/15:00 am -
1 stop7h 03m
Deal found 10/14![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/17. 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.
Sat 12/55:00 am -
1 stop5h 37m
Tue 12/85:00 am -
1 stop5h 33m
Deal found 10/17![United Airlines logo]()
$449
Last-minute flights from Rapid City to PortlandDiscover last-minute flight deals from Rapid City to Portland. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Portland. Data last updated October 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/16. 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 10/174:38 pm -
1 stop8h 06m
Sat 10/246:00 am -
1 stop8h 58m
Deal found 10/16![Delta logo]()
$490
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:45 am -
1 stop6h 48m
Fri 11/276:00 am -
1 stop8h 54m
Deal found 10/17![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:45 am -
1 stop6h 48m
Fri 11/2712:35 am -
1 stop8h 48m
Deal found 10/17![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:36 pm -
1 stop8h 10m
Fri 11/276:00 am -
1 stop8h 54m
Deal found 10/17![Delta logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:02 am -
1 stop8h 32m
Tue 12/15:09 pm -
2 stops17h 08m
Deal found 10/14![Multiple Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 11/245:00 am -
1 stop5h 36m
Tue 12/15:00 am -
1 stop7h 03m
Deal found 10/14![United Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:02 am -
1 stop8h 32m
Mon 11/301:31 pm -
2 stops47h 27m
Deal found 10/14![Multiple Airlines logo]()
$463
One-way flights from Rapid City to PortlandSearch for one-way flight options from Rapid City to Portland. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Rapid City to Portland. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:29 pm -
2 stops47h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:57 pm -
2 stops42h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/45:50 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/248:45 am -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$371
Find flight deals from Rapid City to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Portland (PDX). 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 October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $278 (Kiwi.com) |
Popular in | June |
Cheapest in | December |
Average price | $388 |
Cheapflights Fare Finder
Customize your flight search to find flights from Rapid City to Portland 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 October 19, 2026.
Use the filters below to find and compare flights from Rapid City to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Wed 1/6
11:21 am-9:32 am
1 stop23h 11m
Portland
Thu 1/21
5:50 pm-6:34 pm
1 stop23h 44m
$278
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Sun 10/25
12:29 pm-11:07 am
2 stops47h 38m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$309
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Wed 11/4
5:57 pm-11:36 am
2 stops42h 39m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$311
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Wed 11/4
5:50 pm-11:09 pm
1 stop6h 19m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Wed 12/9
5:00 am-9:36 am
1 stop5h 36m
Portland
Sat 12/12
5:00 am-1:03 pm
1 stop7h 03m
$349
Quickest round-trip
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Sat 10/24
8:45 am-1:15 pm
1 stop5h 30m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$371
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Tue 11/24
5:00 am-9:36 am
1 stop5h 36m
Portland
Tue 12/1
5:00 am-1:03 pm
1 stop7h 03m
$384
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Sat 12/5
5:00 am-9:37 am
1 stop5h 37m
Portland
Tue 12/8
5:00 am-11:33 am
1 stop5h 33m
$449
Sorted by cheapest first
Compare providers for flights from Rapid City to Portland
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 Rapid City to Portland in October.
| 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 Rapid City-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Portland flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-Portland 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 Rapid City-Portland 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 Rapid City to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Rapid City with our price prediction graph.
RAP-PDX
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 Rapid City to Portland
What is the cheapest month to book a flight from Rapid City to Portland?
Currently, December is the cheapest month in which you can book a flight from Rapid City to Portland (average of $273). Flying from Rapid City to Portland in June is currently the most expensive (average of $710). 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 Rapid City to Portland?
Airfare is below average for this route at the moment.
Rapid City to Portland flights typically cost between $363 and $493 in January.The cheapest round-trip price found within the last 5 days was $278 on Allegiant Air (Jan 6-Jan 21).
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated October 19, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Rapid City to Portland. 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.
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Rapid City to Portland. 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 Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Durham
Longview
Lake Oswego
Cannon Beach
Vancouver
Kelso
Troutdale
Lincoln City
Clackamas
McMinnville
The Dalles
Wilsonville
Stevenson
Hillsboro
Tillamook
Astoria
Gresham
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Rapid City to Portland
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Complete your trip
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Rapid City and Portland flights
Browse other Rapid City and Portland flight options. Last updated on October 19, 2026.
Other flights from Rapid City
Browse through other flights departing from Rapid City. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Top 2 airlines flying from Rapid City to Portland
Discover the top 2 airlines that operate flights from Rapid City to Portland. 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 October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$343 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$298 | Average$444 | FlexibilityNo cancel fee | On-time69% |