$302 Find Cheap Flights from Portland to South Dakota - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to South Dakota departing on 8/21. 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

Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
8:00 am - 4:34 pmPWM  Portland-RAP Rapid City
10h 34m1 stop Dallas/Fort Worth
American Airlines Logo
12:20 pm - 10:48 pmRAP  Rapid City-PWM Portland
8h 28m1 stop Chicago O'Hare Intl
$359American Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
6:03 am - 10:26 amPWM  Portland-RAP Rapid City
6h 23m1 stop Chicago O'Hare Intl
United Airlines Logo
5:00 am - 5:42 pmRAP  Rapid City-PWM Portland
10h 42m2 stops Denver Intl Chicago O'Hare Intl
$364United Airlines
Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
5:30 am - 4:34 pmPWM  Portland-RAP Rapid City
13h 04m2 stops Philadelphia Dallas/Fort Worth
American Airlines Logo
12:20 pm - 11:47 pmRAP  Rapid City-PWM Portland
9h 27m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National
$369American Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
6:03 am - 10:26 amPWM  Portland-RAP Rapid City
6h 23m1 stop Chicago O'Hare Intl
United Airlines Logo
1:31 pm - 9:23 pmRAP  Rapid City-PWM Portland
5h 52m1 stop Chicago O'Hare Intl
$381United Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
6:00 am - 5:43 pmPWM  Portland-RAP Rapid City
13h 43m2 stops Newark Denver Intl
United Airlines Logo
1:31 pm - 9:23 pmRAP  Rapid City-PWM Portland
5h 52m1 stop Chicago O'Hare Intl
$387United Airlines
Wed, Oct 21 - Wed, Oct 28
Delta Logo
11:55 am - 3:58 pmPWM  Portland-RAP Rapid City
6h 03m1 stop Minneapolis St Paul
Delta Logo
11:29 am - 11:35 pmRAP  Rapid City-PWM Portland
10h 06m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$443Delta
Wed, Oct 21 - Wed, Oct 28
Delta Logo
4:47 pm - 10:30 pmPWM  Portland-RAP Rapid City
7h 43m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
11:29 am - 11:35 pmRAP  Rapid City-PWM Portland
10h 06m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$448Delta
Sat, Aug 29 - Sat, Sep 5
Delta Logo
6:05 am - 3:30 pmPWM  Portland-RAP Rapid City
11h 25m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul
Delta Logo
6:48 am - 9:31 pmRAP  Rapid City-PWM Portland
12h 43m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$529Delta
Thu, Sep 24 - Wed, Sep 30
American Airlines Logo
10:47 am - 9:52 pmPWM  Portland-RAP Rapid City
13h 05m2 stops New York LaGuardia Dallas/Fort Worth
American Airlines Logo
6:30 am - 11:47 pmRAP  Rapid City-PWM Portland
15h 17m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$560American Airlines
Thu, Sep 24 - Wed, Sep 30
American Airlines Logo
10:47 am - 9:52 pmPWM  Portland-RAP Rapid City
13h 05m2 stops New York LaGuardia Dallas/Fort Worth
American Airlines Logo
12:36 pm - 11:47 pmRAP  Rapid City-PWM Portland
9h 11m1 stop Chicago O'Hare Intl
$576American 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 15m.

Good to know

Cheapest flight

$302
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 10081 reviews
7.7Boarding
6.7Food
7.1Entertainment
8.1Crew
7.3Comfort
Airline reviews

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

2.0 MediocreCraig, Aug 2026
Read more United Airlines reviews

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

Flight staff and all was fine. Food always sucks on planes so nothing new.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

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.

The flight was delayed in 30 minute increments for a total of 4 hours and 30 minute delay. All other flights to Chicago left on time except for this one flight. If there is an issue with the inbound flight, just let customers know so they can find another flight right away, Once we got on the plane there was another 30 minute delay taking off at 10:30 at night which is very unusual that a flight wouldn't be ready to take off

American notified via app that the flight was delayed. However, when I went to the gate, they were already boarding and had not updated communications that they had pulled the flight time back. They made the entire flight re-check in which by this time I had lost my exit row seat and ended up in a middle seat. As a 4 decade flyer of American and Exec Plat, my expectations for the company are that the customer service would be better. This unfortunately is no longer a strong point for any of the major airlines including American. They are basically city buses flying at 30 thousand feet.

Both directions of our trip were befuddled by massive delays, one of which led to our connecting flight being grounded mid air due to storms that we’d have missed if we were on time. The other our originating flight was delayed repeatedly until it arrived at our connecting airport later than our final leg was even supposed to have arrived. American cannot seem to manage rebooking s for a family party… both directions we had to come up with a plan to get to Boston stay overnight only one night each direction was covered by the airline -and take a bus to or from our destination. Missed an entire leg of our trip, hotel cancellation fees, expensive stay in Boston and bus ticket expenses are unlikely to be comped and the meal vouchers are worthless.

My flight was 4 hours delayed on departure at 6a causing me to miss my connection at DCA. I had to scramble to find a seat home on a later flight and instead of an exit seat, I was in row 30 on a flight getting me home 5 hours later than planned. The AA team on the ground did a fine job. AA continues to run the airline like the passengers are cargo.

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.

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

Information on your arrival and departure airports