$369 Find Cheap Flights from Portland to South Dakota

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to South Dakota departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to South Dakota

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to South Dakota, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to South Dakota, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Portland to South Dakota Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to South Dakota that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to South Dakota

Sat, Jan 10 - Wed, Jan 14
Delta Logo
1:13 pm - 10:28 pm
PWM
-
RAP
11h 15m2 stops
Delta Logo
10:54 am - 11:22 pm
RAP
-
PWM
10h 28m2 stops
$369Delta
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
9:40 am - 7:14 pm
PWM
-
RAP
11h 34m2 stops
United Airlines Logo
10:45 am - 11:30 pm
RAP
-
PWM
10h 45m2 stops
$409United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
2:31 pm - 10:29 pm
PWM
-
RAP
9h 58m2 stops
United Airlines Logo
8:30 am - 11:30 pm
RAP
-
PWM
13h 00m2 stops
$434United Airlines
Fri, Mar 13 - Mon, Mar 16
United Airlines Logo
6:00 am - 8:34 pm
PWM
-
RAP
16h 34m2 stops
United Airlines Logo
5:41 pm - 3:14 pm
RAP
-
PWM
19h 33m2 stops
$697United Airlines
Sat, Jan 10 - Wed, Jan 14
American Airlines Logo
7:00 am - 9:15 pm
PWM
-
RAP
16h 15m3 stops
American Airlines Logo
2:08 pm - 12:06 pm
RAP
-
PWM
19h 58m2 stops
$708American Airlines
Sat, Jan 10 - Wed, Jan 14
American Airlines Logo
7:00 am - 9:15 pm
PWM
-
RAP
16h 15m3 stops
American Airlines Logo
6:00 am - 10:07 pm
RAP
-
PWM
14h 07m3 stops
$944American Airlines
Fri, Mar 13 - Mon, Mar 16
American Airlines Logo
12:49 pm - 10:36 pm
PWM
-
RAP
11h 47m2 stops
American Airlines Logo
5:36 am - 10:50 pm
RAP
-
PWM
15h 14m3 stops
$1,001American Airlines
Booking Insights

KAYAK's insights & trends for Portland to South Dakota flights

Get data-powered insights and trends into flights from Portland to South Dakota to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to South Dakota?

The average price of all round-trip flights from Portland to South Dakota clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Portland to South Dakota, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from South Dakota, Saturday is the cheapest day to fly and Wednesday is the most expensive.

Good to know

Cheapest flight$369
Flight from Portland to Rapid City

FAQs - booking South Dakota flights

  • How does KAYAK find such low prices on flights from Portland to South Dakota?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to South Dakota.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to South Dakota?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to South Dakota is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to South Dakota?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to South Dakota with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to South Dakota?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to South Dakota up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Dakota?

    The cheapest time of day to fly to South Dakota is generally in the afternoon, when round-trip flights cost $601 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to South Dakota is generally in the morning, which is peak travel time and where the average cost of a ticket is $660.

Reviews of the top airlines flying from Portland to South Dakota

 
See real verified KAYAK customer reviews for airlines flying from Portland to South Dakota. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to South Dakota? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9116 reviews
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
Airline reviews

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

10.0 ExcellentDr. Joseph, Dec 2025
ORD - EWR
Read more United Airlines reviews

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Everything you need to know for your flight from Portland to South Dakota

Information on your arrival and departure airports