$329+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — PDX
Oct 11 — Oct 181
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 September 11, 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 September 11, 2026.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:04 pm -
1 stop7h 35m
Sat 10/246:30 am -
1 stop8h 55m
Deal found 9/7![American Airlines logo]()
$329
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:04 pm -
1 stop7h 35m
Sat 10/246:30 am -
1 stop8h 55m
Deal found 9/8![American Airlines logo]()
$349
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.
Tue 10/277:00 am -
2 stops8h 34m
Sun 11/14:25 pm -
1 stop5h 05m
Deal found 9/8![United Airlines logo]()
$354
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 9/305:00 am -
1 stop5h 28m
Sat 10/310:43 am -
1 stop5h 23m
Deal found 9/8![United Airlines logo]()
$372
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 10/2110:26 am -
1 stop5h 37m
Sat 10/241:13 pm -
2 stops8h 17m
Deal found 9/8![United Airlines logo]()
$389
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 9/235:22 am -
1 stop5h 10m
Sun 9/275:00 am -
1 stop6h 26m
Deal found 9/8![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/52:35 pm -
1 stop7h 40m
Tue 12/85:00 am -
1 stop7h 03m
Deal found 9/10![United Airlines logo]()
$409
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:56 pm -
1 stop7h 27m
Sat 10/1011:49 pm -
1 stop9h 05m
Deal found 9/8![American Airlines logo]()
$410
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 September 11, 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 September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 11/132:23 pm -
1 stop6h 41m
Sat 11/1412:35 am -
1 stop8h 48m
Deal found 9/10![Delta 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.
Wed 9/305:00 am -
1 stop5h 28m
Sat 10/31:13 pm -
2 stops8h 17m
Deal found 9/8![United Airlines logo]()
$377
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.
Sat 12/54:31 pm -
1 stop5h 44m
Tue 12/84:05 pm -
1 stop5h 03m
Deal found 9/9![United Airlines logo]()
$409
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.
Sat 10/175:00 am -
2 stops8h 10m
Sat 10/249:00 am -
2 stops12h 30m
Deal found 9/9![United Airlines logo]()
$419
Last-minute flights from Rapid City to PortlandDiscover last-minute flight deals from Rapid City to Portland. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Portland. Data last updated September 11, 2026 and is based on user searches.
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 9/235:22 am -
1 stop5h 10m
Sun 9/275:00 am -
1 stop6h 26m
Deal found 9/8![United Airlines logo]()
$399
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 9/305:00 am -
1 stop5h 28m
Sat 10/310:43 am -
1 stop5h 23m
Deal found 9/8![United Airlines logo]()
$372
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:56 pm -
1 stop7h 27m
Sat 10/1011:49 pm -
1 stop9h 05m
Deal found 9/8![American Airlines logo]()
$410
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:04 pm -
1 stop7h 35m
Sat 10/246:30 am -
1 stop8h 55m
Deal found 9/7![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/175:00 am -
1 stop5h 36m
Sat 10/249:00 am -
2 stops10h 52m
Deal found 9/10![United Airlines logo]()
$414
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:04 pm -
1 stop7h 35m
Sat 10/246:30 am -
1 stop8h 55m
Deal found 9/8![American Airlines logo]()
$349
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 10/2110:26 am -
1 stop5h 37m
Sat 10/241:13 pm -
2 stops8h 17m
Deal found 9/8![United Airlines logo]()
$389
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.
Tue 10/277:00 am -
2 stops8h 34m
Sun 11/14:25 pm -
1 stop5h 05m
Deal found 9/8![United Airlines logo]()
$354
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 September 11, 2026.
Search for one-way flight options from Rapid City to Portland. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/248:57 am -
1 stop7h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 9/243:34 pm -
2 stops21h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$433
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.
Fri 10/1610:06 pm -
3 stops37h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$530
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (American Airlines) |
Popular in | June |
Cheapest in | December |
Average price | $493 |
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 September 11, 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
Fri 11/13
2:23 pm-8:04 pm
1 stop6h 41m
Portland
Sat 11/14
12:35 am-10:23 am
1 stop8h 48m
$329
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Wed 9/30
5:00 am-9:28 am
1 stop5h 28m
Portland
Sat 10/3
1:13 pm-10:30 pm
2 stops8h 17m
$377
Quickest round-trip
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Thu 9/24
8:57 am-3:05 pm
1 stop7h 08m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$384
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Sat 12/5
4:31 pm-9:15 pm
1 stop5h 44m
Portland
Tue 12/8
4:05 pm-10:08 pm
1 stop5h 03m
$409
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Sat 10/17
5:00 am-12:10 pm
2 stops8h 10m
Portland
Sat 10/24
9:00 am-10:30 pm
2 stops12h 30m
$419
Rapid CityPortland
RAP Rapid City - PDX Portland
RAPPDX
Rapid City
Fri 10/16
10:06 pm-10:54 am
3 stops37h 48m
Portland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$530
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 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 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 $378 and $550 in October.The cheapest round-trip price found within the last 5 days was $329 on American Airlines (Oct 17-Oct 24).
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 September 11, 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.
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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
Lincoln City
Durham
Longview
Lake Oswego
Vancouver
Kelso
Troutdale
Clackamas
Cannon Beach
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
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Rapid City and Portland flights
Browse other Rapid City and Portland flight options. Last updated on September 11, 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 September 11, 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 September 11, 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 September 11, 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% |