$349 Find Cheap Flights from Portland to South Dakota - Compare and Save

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 8/31. 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

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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

Mon, Aug 31 - Sat, Sep 5
United Airlines Logo
6:03 am - 10:26 am
PWM
-
RAP
6h 23m
1 stop
United Airlines Logo
1:31 pm - 9:23 pm
RAP
-
PWM
5h 52m
1 stop
$349United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:38 pm - 10:28 pm
PWM
-
RAP
9h 50m
2 stops
United Airlines Logo
1:31 pm - 9:23 pm
RAP
-
PWM
5h 52m
1 stop
$354United Airlines
Wed, Nov 4 - Wed, Nov 11
Delta Logo
8:00 am - 3:57 pm
PWM
-
RAP
9h 57m
2 stops
Delta Logo
6:55 am - 7:29 pm
RAP
-
PWM
10h 34m
2 stops
$359Delta
Wed, Sep 23 - Wed, Sep 30
United Airlines Logo
6:00 am - 10:26 am
PWM
-
RAP
6h 26m
1 stop
United Airlines Logo
1:37 pm - 9:54 pm
RAP
-
PWM
6h 17m
1 stop
$374United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
3:37 pm - 10:28 pm
PWM
-
RAP
8h 51m
1 stop
United Airlines Logo
1:31 pm - 9:23 pm
RAP
-
PWM
5h 52m
1 stop
$384United Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
8:00 am - 4:34 pm
PWM
-
RAP
10h 34m
1 stop
American Airlines Logo
12:20 pm - 10:48 pm
RAP
-
PWM
8h 28m
1 stop
$396American Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
5:30 am - 4:34 pm
PWM
-
RAP
13h 04m
2 stops
American Airlines Logo
12:20 pm - 10:48 pm
RAP
-
PWM
8h 28m
1 stop
$401American Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
5:30 am - 4:34 pm
PWM
-
RAP
13h 04m
2 stops
American Airlines Logo
12:20 pm - 11:37 pm
RAP
-
PWM
9h 17m
2 stops
$406American Airlines
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
6:00 am - 4:34 pm
PWM
-
RAP
12h 34m
2 stops
American Airlines Logo
6:28 am - 10:44 pm
RAP
-
PWM
14h 16m
2 stops
$426American Airlines
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
8:50 am - 9:35 pm
PWM
-
RAP
14h 45m
2 stops
American Airlines Logo
6:28 am - 10:44 pm
RAP
-
PWM
14h 16m
2 stops
$446American 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.

How long does a flight from Portland to South Dakota take?

The duration of a flight to South Dakota depends on your arrival airport. The shortest route to South Dakota from Portland is to Rapid City, which takes 6h 23m.

Good to know

Cheapest flight$349
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.

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 9948 reviews
6.7Food
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

2.0 MediocreMichael, Jul 2026
LAX - IAH
Read more United Airlines reviews

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

It's fine but Newark to Nashville was too long

The flight was delayed because they closed several flight ways because of air shows, fire works, etc.

Horrible experience. They delayed our flight 7 hours!! We had to seat at the airport with kids on 4th July all day!

Excellent flight. On time. Great staff. Clean and crisp cabin.

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Both my flight where delayed Had 25min to make it to my transfer flight

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

Boarding was awful - no order, people cutting in line, completely chaotic Planes are very old and uncomfortable. Noticeable difference between Delta and United on same route.

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

American Airlines changed are gate no fewer than four times. Walking back and forth from one concourse to another was exhausting, especially after all the flight delays.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

I have a gluten allergy so did have any food

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Flight was delayed after boarding and no idea when it would take off. Crew in Portland did arrange for transport to Boston for a different set of flights to my destination.

Seats are so close together. Middle seats should be discounted.

I just for my TSA. So security line is short and upgraded to one group up. I do think the ground crew should learn new way of boarding - the passengers sitting in higher number seat should board first to prevent traffic jam.

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

Information on your arrival and departure airports