$349 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 7/9. 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
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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

Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
6:00 am - 11:14 am
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7h 14m
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American Airlines Logo
3:25 pm - 12:43 am
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7h 18m
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$537American Airlines
Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
6:00 am - 11:14 am
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7h 14m
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American Airlines Logo
4:55 pm - 11:45 am
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16h 50m
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$578American Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
6:00 am - 12:24 pm
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8h 24m
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United Airlines Logo
1:31 pm - 9:23 pm
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5h 52m
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$584United Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
6:00 am - 11:14 am
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7h 14m
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American Airlines Logo
6:30 am - 6:46 pm
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10h 16m
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$619American Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
10:47 am - 9:50 pm
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13h 03m
2 stops
American Airlines Logo
6:30 am - 6:46 pm
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10h 16m
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$624American Airlines
Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
1:25 pm - 9:31 pm
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10h 06m
2 stops
American Airlines Logo
4:55 pm - 11:45 am
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16h 50m
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$646American Airlines
Sat, Aug 8 - Fri, Aug 14
American Airlines Logo
5:30 am - 4:34 pm
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13h 04m
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American Airlines Logo
6:28 am - 10:00 pm
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13h 32m
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$672American Airlines
Sat, Aug 8 - Fri, Aug 14
United Airlines Logo
5:15 am - 11:16 pm
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20h 01m
2 stops
United Airlines Logo
1:31 pm - 9:23 pm
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5h 52m
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$713United Airlines
Sat, Jun 20 - Thu, Jun 25
American Airlines Logo
7:28 pm - 2:49 pm
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21h 21m
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American Airlines Logo
3:19 pm - 12:42 am
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7h 23m
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$717American Airlines
Sat, Aug 8 - Fri, Aug 14
American Airlines Logo
5:30 am - 4:34 pm
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13h 04m
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American Airlines Logo
1:16 pm - 10:00 pm
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6h 44m
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$728American 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.

Which airlines provide the cheapest flights from Portland to South Dakota?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 3 days.

In the past 3 days, the cheapest round-trip tickets from Portland to South Dakota were found on American Airlines ($578) and United Airlines ($733).

Good to know

Low seasonAugust
Cheapest flight$500
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 35% increase in price.
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 9778 reviews
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

10.0 ExcellentMarianne, Jun 2026
SAF - DEN
Read more United Airlines reviews

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

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

Information on your arrival and departure airports